{"id":11524,"date":"2026-09-11T15:43:30","date_gmt":"2026-09-11T07:43:30","guid":{"rendered":"https:\/\/subian-electric.com\/?page_id=11524"},"modified":"2026-09-14T14:14:13","modified_gmt":"2026-09-14T06:14:13","slug":"32-kva-transformer","status":"publish","type":"page","link":"https:\/\/subian-electric.com\/pt\/32-kva-transformer\/","title":{"rendered":"Transformador de 32 kVA"},"content":{"rendered":"\n<section class=\"web-sem-module web-sem-module-one\" style=\"min-width: 100%;\">\n<div class=\"web-sem-container\">\n<div class=\"web-sem-flex-box\">\n<div class=\"web-sem-text\"><span class=\"web-sem-tag\">COMPANY PROFILE<\/span>\n<h1>32 kVA Transformer<\/h1>\n<p>The 32 kVA transformers are produced by Subian Electric for small industries, commercial activities, and backup power requirements. This transformer has a voltage which is above the lower limit of the 30 kVA transformer that is contained in the page of distribution transformer in terms of design because it uses the same transformer design as the other standard transformers of various designs such as 10 kV or 11 kV to get reduced to 400 V and it has full load current of 46 A per stage.The transformers of different ranges given on the page range from 30 kVA to 2500 kVA and can be used in either oil filled or dry type construction. This transformer with output 32 kVA has versatility and can be used for powering water pumps, small workshops, industrial or distribution transformer for small utilities to generate power or UPS bypass.You may give the necessary information with the use of which the engineers can specify the voltage and losses.<\/p>\n<div style=\"margin-top: 24px;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,0.08);\" src=\"\/wp-content\/uploads\/2026\/08\/subian-product-certification-marks.png\" alt=\"Subian Electric ISO9001 CE and UL certification marks for distribution transformers\"><\/div>\n<div class=\"hy-lb-btn-wrap\" style=\"margin-top: 20px;\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote<\/a><\/div>\n<\/div>\n<div class=\"web-sem-media\">\n<div class=\"web-sem-main-img web-sem-rect-75\"><img decoding=\"async\" class=\"web-sem-full\" src=\"\/wp-content\/uploads\/2026\/08\/20-35KV-SCB-Series-Epoxy-Resin-Dry-Type-Transformer-1.webp\" alt=\"32 kVA dry-type cast resin transformer for indoor distribution and UPS duty\"><\/div>\n<div class=\"web-sem-float-card\"><strong>Factory-Direct Manufacturer<\/strong><br>Since 2019 \u00b7 50,000m\u00b2 \u00b7 350+ Staff<\/div>\n<\/div>\n<\/div>\n<div class=\"web-sem-stats-grid\">\n<div class=\"web-sem-stat-item\"><strong>50,000m\u00b2<\/strong>Manufacturing Base<\/div>\n<div class=\"web-sem-stat-item\"><strong>Up to 110kV<\/strong>Type-Tested Capability<\/div>\n<div class=\"web-sem-stat-item\"><strong>350+<\/strong>Employees<\/div>\n<div class=\"web-sem-stat-item\"><strong>50+<\/strong>Countries Served<\/div>\n<div class=\"web-sem-stat-item\"><strong>OEM\/ODM<\/strong>Support<\/div>\n<div class=\"web-sem-stat-item\"><strong>Wholesale<\/strong>Supply<\/div>\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"singlepage-products-section\" style=\"min-width: 100%;\">\n<div class=\"singlepage-container\">\n<h2 class=\"singlepage-section-title\">Distribution Transformers We Build<\/h2>\n<p class=\"singlepage-section-desc\">Oil-immersed and dry-type transformers from 30 kVA to 2,500 kVA, including 32 kVA units for 10kV, 11kV, 20kV and 33kV networks.<\/p>\n<div class=\"woocommerce columns-4 \"><ul class=\"products columns-4\" data-products=\"type-3\" data-hover=\"zoom-in\">\n<li class=\"product type-product post-2007 status-publish first instock product_cat-dry-type-transformer product_cat-all-product product_cat-transformer product_tag-amorphous-alloy-transformer product_tag-dry-type-transformer product_tag-scbh-series has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/pt\/product\/10kv-dry-type-transformer-scbh-series\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" 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shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/pt\/product\/electrical-transformers-jdz-10-power-voltage\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h62d1d2268850460b947a0f5239537f12m.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Electrical Transformers--JDZ - 10  Power Voltage\" \/><h2 class=\"woocommerce-loop-product__title\">Electrical Transformers&#8211;JDZ &#8211; 10  Power Voltage<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/pt\/product\/electrical-transformers-jdz-10-power-voltage\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1934\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1934\" data-product_sku=\"\" aria-label=\"Leia mais sobre &ldquo;Electrical Transformers--JDZ - 10  Power Voltage&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Ler mais<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1934\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\">\n<div class=\"subian-semv2-acbr-split\">\n<div class=\"subian-semv2-acbr-text\">\n<h2 id=\"subian-semv2-acbr-title\">What Is a 32 kVA Transformer?<\/h2>\n<p class=\"subian-semv2-acbr-intro\">The 32 kVA transformer is a three-phase device with a 32 kilovolt-ampere rating, or around 25.6 kW of real power at an assumed power factor of 0.8. It acts like an isolation or distribution transformer that is usually used for stepping down a medium voltage such as 10 or 11 kV to 400V for a single load center, or 1:1 isolation of sensitive equipment.<\/p>\n<p>The load of 32 kVA is rather near the already accepted value of 31.5 kVA; thus, this is mainly the value used in the project. The calculation of the load or actual installation or customer demand leads to this load. The unit of the whole 30-2,500 kVA series is produced by the same standard tooling. So, this means the load can be supplied with similar connection groups for both the settings of load impedance.<\/p>\n<\/div>\n<ul class=\"subian-semv2-acbr-points\">\n<li><strong>32 kVA \/ 25.6 kW<\/strong> &#8211; apparent power at 0.8 power factor, three-phase.<\/li><li><strong>10 \/ 11 \/ 20 \/ 33 kV primary<\/strong> &#8211; stepping down to 400V, 415V or 0.69 kV.<\/li><li><strong>46 A at 400V<\/strong> &#8211; full-load secondary current; 1.7 A at 11 kV.<\/li><li><strong>4-6% impedance<\/strong> &#8211; coordinated with the upstream protection.<\/li><li><strong>Oil-immersed or dry-type<\/strong> &#8211; pole, plinth, indoor room or panel mounting.<\/li><li><strong>IEC 60076 \/ GB 1094<\/strong> &#8211; routine test report supplied with every unit.<\/li>\n<\/ul>\n<\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">32 kVA Configurations<\/h3><p class=\"subian-semv2-acbr-subtitle-desc\">The application decides the construction and the duty:<\/p><div class=\"subian-t2-types\"><div class=\"subian-t2-type\"><h4>Oil-immersed distribution type<\/h4><p>the economical choice for pole, plinth and outdoor supply.<\/p><\/div><div class=\"subian-t2-type\"><h4>Dry-type \/ cast resin<\/h4><p>for indoor rooms, UPS areas and fire-sensitive buildings.<\/p><\/div><div class=\"subian-t2-type\"><h4>Isolation and auto variants<\/h4><p>1:1 galvanic isolation or a compact auto-transformer ratio change.<\/p><\/div><\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">32 kVA Transformer Specification (Typical)<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><thead><tr><th scope=\"col\">Parameter<\/th><th scope=\"col\">Specification<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Rated capacity<\/th><td>32 kVA, three-phase (project rating near the 31.5 kVA step)<\/td><\/tr><tr><th scope=\"row\">Primary voltage<\/th><td>10 \/ 11 \/ 20 \/ 33 kV (factory series 6-33 kV)<\/td><\/tr><tr><th scope=\"row\">Secondary voltage<\/th><td>0.4 \/ 0.415 \/ 0.69 kV<\/td><\/tr><tr><th scope=\"row\">Full-load current<\/th><td>approx. 46 A at 400V; approx. 1.7 A at 11 kV<\/td><\/tr><tr><th scope=\"row\">No-load loss (typical)<\/th><td>0.10-0.15 kW<\/td><\/tr><tr><th scope=\"row\">Load loss at 75\u00b0C (typical)<\/th><td>0.63-0.80 kW<\/td><\/tr><tr><th scope=\"row\">Short-circuit impedance<\/th><td>4% typical (4-6% by rating)<\/td><\/tr><tr><th scope=\"row\">Connection group<\/th><td>Yyn0 \/ Dyn11 \/ Yzn11<\/td><\/tr><tr><th scope=\"row\">Cooling<\/th><td>ONAN (oil-immersed) \u00b7 AN\/AF (dry-type)<\/td><\/tr><tr><th scope=\"row\">Insulation class<\/th><td>F \/ H (dry-type)<\/td><\/tr><tr><th scope=\"row\">Standard<\/th><td>IEC 60076 \/ GB 1094 (dry-type: GB 10228)<\/td><\/tr><tr><th scope=\"row\">Factory series range<\/th><td>30-2,500 kVA, oil-immersed and dry-type<\/td><\/tr><\/tbody><\/table><\/div>\n<\/section>\n\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">32 kVA Transformer Amps and Full-Load Current<\/h2><p>The total current at full load of a transformer rated at 32 kVA is approximately 46 A per phase at its secondary voltage of 400V, 44.5 A at a voltage of 415V, 38.5 A at 480V and 77 A at 240V. As for the primary current, it is considerably smaller with the values being around 1.7 A at 11 kV, 0.9 A at 20 kV and 0.6 A at 33 kV, which is the reason for the ease of protection of such transformer. The elementary protection in the primary circuit consists of a fuse or a load breaker device while the secondary circuit is protected by a conventional breaker rated for such currents.<\/p><p>The three-phase current formula states kVA \u00d7 1,000 \u00f7 (1.732 \u00d7 voltage), which works out to approximately 1.44 A per kVA on the 400V system. When ordering, ensure that you inform of the exact secondary voltage to avoid differences in current rating between the 400V and the 415V systems for the same 32 kVA.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">32 kVA full-load current by voltage<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">400 V secondary<\/th><td>approx. 46 A<\/td><\/tr><tr><th scope=\"row\">415 V secondary<\/th><td>approx. 45 A<\/td><\/tr><tr><th scope=\"row\">480 V secondary<\/th><td>approx. 38 A<\/td><\/tr><tr><th scope=\"row\">240 V secondary<\/th><td>approx. 77 A<\/td><\/tr><tr><th scope=\"row\">11 kV primary<\/th><td>approx. 1.7 A<\/td><\/tr><tr><th scope=\"row\">20 kV primary<\/th><td>approx. 0.9 A<\/td><\/tr><tr><th scope=\"row\">33 kV primary<\/th><td>approx. 0.6 A<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">How Big Is a 32 kVA Transformer? Size, Dimensions and Weight<\/h2><p>Searching for specification details like size of 32 kVA transformer, dimensions of 32 kVA transformer, or weight of 32 kVA transformer yields only size (length, width, height, and weight) of this transformer. As far as size of 32 kVA transformer is concerned, this transformer is a compact size unit. An oil type transformer of this rating spans between 700-900 mm in length, 400-550 mm in width, and 800-1,100 mm in height, weighing around 250-400 kg when filled with oil. For example, our reference transformer of 100 kVA has the dimensions of 1,000-1,200 mm in length, 500-700 mm in depth, and 1,100-1,400 mm in height with its weight between 600-900 kg. Thus, the size of 32 kVA, which can be carried on a compact pole bracket as well as a simple plinth, is almost one-third of the latter.<\/p><p>The overall weight of dry-type transformers is less since they&#8217;re not filled with oil or doesn&#8217;t have a heavy closed tank, but on the other hand, they require free access to the air for cooling, so they must be used indoors. The size also varies with the difference in the voltage level \u2013 a winding used in a transformer operating at 33kV requires more clearance between the windings than a winding in a transformer operating at 10 kV of the same kVA. When small transformers are compared, the weight of a 3 kVA dry-type transformer is within 25-40 kg range \u2013 three is a much higher magnitude at the same time being an instrument transformer rather than being used in the field of electric power distribution.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Indicative 32 kVA dimensions and weight (confirm on drawings)<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">Oil-immersed, dimensions<\/th><td>approx. 700-900 \u00d7 400-550 \u00d7 800-1,100 mm<\/td><\/tr><tr><th scope=\"row\">Oil-immersed, total weight<\/th><td>approx. 250-400 kg<\/td><\/tr><tr><th scope=\"row\">Dry-type<\/th><td>lighter overall; needs air clearance indoors<\/td><\/tr><tr><th scope=\"row\">Reference: 100 kVA unit<\/th><td>1,000-1,200 \u00d7 500-700 \u00d7 1,100-1,400 mm, 600-900 kg<\/td><\/tr><tr><th scope=\"row\">Reference: 3 kVA unit<\/th><td>approx. 25-40 kg (control \/ instrument class)<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">32 kVA Transformer Price, Sale Options and Budget<\/h2><p>For the pricing of a small transformer, the role of raw materials is much more important than the kVA rating of the unit, as per the type of copper or aluminum winding to be used in the transformer, insulation class applicable to the primary voltage, type of steel used for the core and housing. That\u2019s why the prices of two transformers whose rating is 32 kVA can differ substantially without any mistake being made by either of the manufacturers. The standard oil-immersed transformer with 11 kV\/0.4 kV voltage, copper windings and certified tests should cost somewhere between USD 700 and $2,500 per item. A dry-type transformer takes the price to the upper level. So the buyer may expect to pay less than $10,000 for a 32 kVA transformer delivered to him with all necessary equipment without worrying about specifications.<\/p><p>The cost of delivery depends on the final destination of the equipment. A 32 kVA transformer cost in South Africa or India includes many aspects such as customs duties, and clearing charges on top of the ex-works price. Moreover, the costs of each transformer depend on market currency rates as well as on the prices of copper, thus, Q18 quotes based on the named port.If you require a single transformer or need continuous supply for a certain project, prices may vary. However, it is important to inform Q18 which case applies, and what need to be indicated: ex-works price; or the final one.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">What shapes a 32 kVA quotation<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">Voltage class<\/th><td>10kV \/ 11kV vs 20kV vs 33kV primary insulation<\/td><\/tr><tr><th scope=\"row\">Winding material<\/th><td>copper vs aluminium<\/td><\/tr><tr><th scope=\"row\">Construction<\/th><td>oil-immersed vs dry-type cast resin<\/td><\/tr><tr><th scope=\"row\">Loss level<\/th><td>standard vs low-loss core and conductor design<\/td><\/tr><tr><th scope=\"row\">Accessories<\/th><td>protection, metering, cable box, off-circuit tap link<\/td><\/tr><tr><th scope=\"row\">Delivery basis<\/th><td>ex-works vs landed cost to your port<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">New, Used and Replacement 32 kVA Transformers<\/h2><p>A 32kVA transformer is so compact and light that many purchasers inquire about the option of buying an alternative instead of having it repaired; yet, such reports need to be subjected to the nameplate specifications. There are three variants of potential solutions. The first one is to order a brand-new 32 kVA transformer with the identical settings in terms of power, voltage, connection group, impedance, and number of tappings. The second way is to have the system upgraded to the 40kVA level so that the energy demands of the organization will be served without the need to change the breaker coil, cable, and support. The third alternative is purchasing used equipment.<\/p><p>When the matter of price is important, a second-hand 32 kVA transformer is rather a good option, provided that it&#8217;s been documented properly: oil dielectric strength and moisture check, winding resistance and ratio measurements and the amount of load applied. Without that documentation, gain in terms of price is typically not worth the risk involved, since a malfunction of a small distribution transformer implies an outage anyway and there is no savings that can compare with the call-out. When the need for a 32 kVA transformer arises and availability seems to be an issue, mention that you are interested in stock and delivery times: sometimes, transformers within this range can be delivered from stock because the project ratings must be requested in advance.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">New, used or rebuilt &#8211; what to check<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">New, matched to nameplate<\/th><td>fastest drop-in replacement; full routine test report<\/td><\/tr><tr><th scope=\"row\">New, uprated to 40 kVA<\/th><td>adds margin; check breaker, cable and plinth<\/td><\/tr><tr><th scope=\"row\">Used with test records<\/th><td>lower cost; insist on oil and winding test data<\/td><\/tr><tr><th scope=\"row\">Used without records<\/th><td>avoid for critical or unattended duty<\/td><\/tr><tr><th scope=\"row\">Ex-stock vs built to order<\/th><td>confirm lead time before committing to a date<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">Distribution, Isolation, Auto and UPS Duty<\/h2><p>A distribution transformer of 32 kVA capacity is used for reducing network voltage for one customer or one location. Unlike a distribution transformer, an isolation transformer  of 32 kVA capacity achieves isolation between the input and output, while it is usually designed to achieve 1:1 ratio rather than reduction. These transformers of this capacity are widely used in hospitals, marine and telecommunications applications for the purpose of preventing earth leakage and harmonics.<\/p><p>The 32 kVA auto transformer is the smaller version of the transformer where there is no need for isolation: the auto connection requires fewer coils than for two-winding transformers of the same rate, which at the same time allows producing a smaller unit and making it cheaper than any two-winding transformer of the same power; however, the user should know that there is no galvanic separation and one winding is now common for the input and output. There are two neighboring markets of the same type of the 32 kVA auto transformer. In the UPS 32 kVA transformer configuration, the device is usually located either on the bypass or on the output track to change the voltage and to keep the most important load safe from harmonics and ground faults. In the case of the ac\/dc power converters, the same 32 kVA transformer connects the rectifier to the supply line supplying adequate drive impedance. In the North American catalogs, this device is included in the category of voltage transformers and regulators.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Duty types at 32 kVA<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">Distribution step-down<\/th><td>10\/0.4kV, 11\/0.4kV, 20\/0.4kV, 33\/0.4kV<\/td><\/tr><tr><th scope=\"row\">Isolation 1:1<\/th><td>galvanic separation, shielding, harmonic isolation<\/td><\/tr><tr><th scope=\"row\">Auto transformer<\/th><td>compact ratio change; no galvanic separation<\/td><\/tr><tr><th scope=\"row\">UPS bypass \/ output<\/th><td>voltage matching and isolation for critical loads<\/td><\/tr><tr><th scope=\"row\">AC\/DC converter front end<\/th><td>matching the rectifier to the supply voltage<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">Colour, Finish and Enclosure Options<\/h2><p>The color of a small transformer is determined primarily by the application rather than personal preference, and the color specifications that are required typically include some sort of RAL reference. A gray 32 kVA transformer would usually conform to either RAL 7035 (light gray) or RAL 7032; a black 32 kVA transformer is RAL 9005; green ones would commonly be either RAL 6011 or RAL 6005 as per site specifications and, in the case of blue ones, these fall under RAL 5012 or RAL 5005 references. A silver 32 kVA transformer usually represents galvanized or aluminum finishes as opposed to paint and, in the case of the white unit, RAL 9010 is usually used in case of electrical rooms and completed buildings.<\/p><p>The process of finishing is as important as the colour. Enclosures and tanks are first blasted, primed and then coated, and for corrosive environments, a thicker paint coating or use of galvanised fittings helps achieve longevity of service. On factory-direct orders, the finish and colour are predetermined when the order is made, so you should provide RAL number and describe the conditions instead of guessing the name of a colour.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Common colour and finish requests<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">Gray<\/th><td>RAL 7035 light grey \/ RAL 7032<\/td><\/tr><tr><th scope=\"row\">Black<\/th><td>RAL 9005<\/td><\/tr><tr><th scope=\"row\">Green<\/th><td>RAL 6011 \/ RAL 6005<\/td><\/tr><tr><th scope=\"row\">Blue<\/th><td>RAL 5012 \/ RAL 5005<\/td><\/tr><tr><th scope=\"row\">Silver<\/th><td>galvanised or aluminium finish<\/td><\/tr><tr><th scope=\"row\">White<\/th><td>RAL 9010<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">Sizing a Transformer: kVA Calculations and Nearby Ratings<\/h2><p>Sizing a transformer kVA begins with the load: sum all the loads in kW and divide by the power factor to find the kVA required, then add in some margin for growth. For example, a 20 kW load with a 0.85 power factor would approximately require 23.5 kVA, which is between the standard kVA ratings of 25 and 31.5, so a 32 kVA transformer would be safe for this project, allowing a little growth margin. To calculate the kVA for 3-phase transformer working, the same formula is applied to the three-phase current, given as kVA = 1.732 \u00d7 voltage \u00d7 current \u00f7 1,000, and for example, for a 400V circuit with 46 A current the load would be around 32 kVA.<\/p><p>Values that are calculated do not consistently match any of the numbers in the catalogue. A number like 32.841 kVA is derived from an accurate three-phase calculation of 32.841 kVA (approximately 47.4 A at 400V, or 39.5 A at 480V) and rounded to an applicable rating &#8211; 32 kVA or the accepted step of 40 kVA according to the margin of development. The same approach can be applied when smaller ratings are concerned: many ask what a 25 kVA transformer is for, and the answer is for basically the same services as the 32 kVA unit but for smaller loads (approximately 36 A at 400V), hence the choice comes down to the margin, not the application.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Standard and project steps around 32 kVA (400V current)<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">25 kVA (standard)<\/th><td>approx. 36 A<\/td><\/tr><tr><th scope=\"row\">31.5 kVA (standard)<\/th><td>approx. 45 A<\/td><\/tr><tr><th scope=\"row\">32 kVA (project rating)<\/th><td>approx. 46 A<\/td><\/tr><tr><th scope=\"row\">40 kVA (standard)<\/th><td>approx. 58 A<\/td><\/tr><tr><th scope=\"row\">3 kVA (control class)<\/th><td>approx. 4.3 A at 400V<\/td><\/tr><tr><th scope=\"row\">32.841 kVA (calculated)<\/th><td>approx. 47.4 A at 400V &#8211; round to a buildable rating<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">Larger Ratings: 320, 325, 3200 and 32000 kVA<\/h2><p>The ratings around 32 kVA can easily cause a misunderstanding as they relate to other equipment of much better values. A transformer with a rating of 320 kVA is about ten times chosen value \u2013 this is a transformer for a substation distribution unit and not a single load centre. The 320 kVA transformer cost is determined the same way as that for any bigger transformer, i.e. its voltage class, losses, impedance, and accessories.<\/p><p>At the highest level of this family, a 3200 kVA transformer is in the medium power range; its price also takes into account several tons of the active material required for this transformer, the need for on-load tap-changing and putting the machine into transport. A 3250 kVA transformer is not standard for this class; a 32000 kVA transformer (32 MVA) is a high voltage piece of equipment. Our own series includes transformers from 30 to 2,500 kVA, and we can produce 320 kVA and 325 kVA transformers on our own.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Where the neighbouring ratings sit<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">32 kVA<\/th><td>small distribution \/ isolation unit &#8211; this page<\/td><\/tr><tr><th scope=\"row\">320 kVA \/ 325 kVA<\/th><td>substation distribution size &#8211; built in our 30-2,500 kVA range<\/td><\/tr><tr><th scope=\"row\">3,200 kVA \/ 3,250 kVA<\/th><td>medium power transformer, quoted per project<\/td><\/tr><tr><th scope=\"row\">32,000 kVA (32 MVA)<\/th><td>transmission class &#8211; separate power transformer pages<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\"><h2 id=\"subian-semv2-acbr-title\" style=\"font-size:26px;line-height:1.35;\">Generators, Standby Power and Rating Confusion<\/h2><p>Many inquiries commence as a 32 kVA generator search and develop into standby power applications. The 32 kVA generator is a habitual small standby size (approximately 25.6 kW at 0.8 power factor), which is purchased together with a transformer when the generator must power a distribution board with a different voltage. A similar scenario can happen with a natural gas 32 kVA transformer case, where gas is run through the generator. The specification is driven by the application&#8217;s characteristics: the standby 32 kVA transformer will not be loaded regularly, so moisture control, anti-condensation heaters, and ventilation must be considered differently than with a traditional distribution unit.<\/p><p>We need to address three confusions related to ratings. To begin with, the mention of 32 kV refers to voltage and not capacity. Hence, you cannot really find a standard 32 kV transformer although a 33 kV transformer is available. Then there is a mention of 32-volt transformer which refers to low voltage or control units. Again this is totally distinct from 32 kVA distribution equipment. Lastly, note that the current ratings are not the same as capacity. For example, a 300A rated 32 kVA transformer signifies a device rated at 300A which amounts to approximately 208 kVA at 400V level. Similarly, 32A rated 32 kVA transformer indicates about 22 kVA at a 400V level. Size according to kVA or kW requirement and then make a choice based on the current rating.<\/p><h3 class=\"subian-semv2-acbr-subtitle\">Do not mix these up<\/h3><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><tbody><tr><th scope=\"row\">32 kVA transformer<\/th><td>approx. 46 A at 400V; approx. 25.6 kW at 0.8 pf<\/td><\/tr><tr><th scope=\"row\">32 kV<\/th><td>a voltage class &#8211; use 33 kV \/ 35 kV equipment classes<\/td><\/tr><tr><th scope=\"row\">32 volt transformer<\/th><td>low-voltage control or lighting transformer<\/td><\/tr><tr><th scope=\"row\">300 A rating at 400V<\/th><td>about 208 kVA &#8211; not 32 kVA<\/td><\/tr><tr><th scope=\"row\">32 A rating at 400V<\/th><td>about 22 kVA &#8211; not 32 kVA<\/td><\/tr><tr><th scope=\"row\">32 kVA generator set<\/th><td>a different machine, about 25.6 kW output<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n\n<section class=\"subian-semv2-factory\" aria-labelledby=\"subian-semv2-factory-title\">\n<div class=\"subian-semv2-factory-head\">\n<h2 id=\"subian-semv2-factory-title\" class=\"subian-semv2-factory-title\">Small Transformer Production and Testing<\/h2>\n<p class=\"subian-semv2-factory-intro\">Small ratings run through the same controlled line as the larger units &#8211; winding, vacuum drying, oil filling and routine testing on every piece.<\/p>\n<\/div>\n<div class=\"subian-semv2-factory-gallery\">\n<div class=\"subian-semv2-factory-item subian-semv2-factory-item--a\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-winding-process.webp\" alt=\"Coil Winding - 32 kVA Transformer manufacturing\" loading=\"lazy\"><h3 class=\"subian-semv2-factory-card-title\">Coil Winding<\/h3><p class=\"subian-semv2-factory-card-text\">Compact coils wound to drawing with layer insulation checked before assembly.<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p><\/div><div class=\"subian-semv2-factory-item subian-semv2-factory-item--b\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-drying-process.webp\" alt=\"Vacuum Drying - 32 kVA Transformer manufacturing\" loading=\"lazy\"><h3 class=\"subian-semv2-factory-card-title\">Vacuum Drying<\/h3><p class=\"subian-semv2-factory-card-text\">Windings dried and moisture verified &#8211; critical on intermittently loaded standby units.<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p><\/div><div class=\"subian-semv2-factory-item subian-semv2-factory-item--c\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-testing-process.webp\" alt=\"Routine Test Bench - 32 kVA Transformer manufacturing\" loading=\"lazy\"><h3 class=\"subian-semv2-factory-card-title\">Routine Test Bench<\/h3><p class=\"subian-semv2-factory-card-text\">Ratio, vector group, no-load and load loss, impedance and insulation on every unit.<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p><\/div><div class=\"subian-semv2-factory-item subian-semv2-factory-item--d\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-final-process.webp\" alt=\"Export Packing - 32 kVA Transformer manufacturing\" loading=\"lazy\"><h3 class=\"subian-semv2-factory-card-title\">Export Packing<\/h3><p class=\"subian-semv2-factory-card-text\">Crated for single-unit or pallet shipment with the test record inside.<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p><\/div>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-cta\" aria-labelledby=\"subian-semv2-cta-title\">\n<div class=\"subian-semv2-cta-content\">\n<h2 id=\"subian-semv2-cta-title\">32 kVA Transformer Price &amp; Quotation<\/h2>\n<p>Tell us the primary and secondary voltage, whether the duty is continuous or standby, how the unit will be mounted and the destination port. We will come back with the 32 kVA specification, the drawing approval schedule and a written factory price.<\/p>\n<div class=\"subian-semv2-cta-actions\"><a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--light\" href=\"\/oem-odm\/\">Get Started \u2192<\/a><br><a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--red\" href=\"\/contact-us\/\">Contact Us \u2192<\/a><\/div>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-section\" aria-labelledby=\"subian-semv2-title\">\n<div class=\"subian-semv2-head\">\n<h2 id=\"subian-semv2-title\" class=\"subian-semv2-head-title\">OEM \/ ODM &amp; Repeat Supply<\/h2>\n<p class=\"subian-semv2-head-intro\">Panel builders, integrators and distributors buy this rating in ones and twos, then come back for repeat supply.<\/p>\n<\/div>\n<div class=\"subian-semv2-grid\">\n<article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-winding-process.webp\" alt=\"OEM \/ ODM - 32 kVA Transformer\" loading=\"lazy\"><div class=\"subian-semv2-card-body\"><div class=\"subian-semv2-card-top\"><h3 class=\"subian-semv2-card-title\">OEM \/ ODM<\/h3><p><span class=\"subian-semv2-card-tag\">Factory-Direct<\/span><\/p><\/div><p class=\"subian-semv2-card-desc\">Custom nameplates, manuals and packing for your brand.<\/p><hr class=\"subian-semv2-card-line\"><p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/p><\/div><\/article><article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-quality-center.webp\" alt=\"Panel Builders - 32 kVA Transformer\" loading=\"lazy\"><div class=\"subian-semv2-card-body\"><div class=\"subian-semv2-card-top\"><h3 class=\"subian-semv2-card-title\">Panel Builders<\/h3><p><span class=\"subian-semv2-card-tag\">Bundled Supply<\/span><\/p><\/div><p class=\"subian-semv2-card-desc\">Transformers matched to your panel, protection and cable schedule.<\/p><hr class=\"subian-semv2-card-line\"><p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/p><\/div><\/article><article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-final-process.webp\" alt=\"Repeat Supply - 32 kVA Transformer\" loading=\"lazy\"><div class=\"subian-semv2-card-body\"><div class=\"subian-semv2-card-top\"><h3 class=\"subian-semv2-card-title\">Repeat Supply<\/h3><p><span class=\"subian-semv2-card-tag\">Channel Partners<\/span><\/p><\/div><p class=\"subian-semv2-card-desc\">Standing prices, fixed data sheets and technical support.<\/p><hr class=\"subian-semv2-card-line\"><p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/p><\/div><\/article>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-compare\" aria-labelledby=\"subian-semv2-compare-title\">\n<div class=\"subian-semv2-compare-row\">\n<div class=\"subian-semv2-compare-text\">\n<h2 id=\"subian-semv2-compare-title\">32 kVA vs Nearby Ratings<\/h2>\n<p>From 25kVA, the scale moves up to 31.5, followed by 40 and 50kVA. A 32kVA version is close to 31.5kVA in that it usually shares the same bracket. Therefore it is the selection that depends on the calculation of the load or the overcapacity the growth or specification of the same 32kVA. <\/p>\n<p>Although moving upward by one size doesn&#8217;t cost much in terms of material, it still changes some elements of the secondary breaker frame, cable section, and load of the plinth. If the site can be expanded, then do make sure to estimate the 40kVA set in comparison with the 32kVA one and compare both in terms of total installed cost rather than simply unit price.<\/p>\n<\/div>\n<div class=\"subian-semv2-compare-media\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/Pad-Mounted-Three-Phase-Transformer-1.webp\" alt=\"32 kVA three-phase distribution transformer in pad-mounted configuration\" loading=\"lazy\"><\/div>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-brands\" aria-labelledby=\"subian-semv2-brands-title\">\n<div class=\"subian-semv2-brands-row\">\n<div class=\"subian-semv2-brands-media\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/10kV-Dry-Type-Transformer-SCBH-series-Amorphous-Alloy-3.webp\" alt=\"Subian 32 kVA transformer manufacturer oil-immersed and dry-type series\" loading=\"lazy\"><\/div>\n<div class=\"subian-semv2-brands-text\">\n<h2 id=\"subian-semv2-brands-title\">Choosing a Supplier for This Rating<\/h2>\n<p>On small units, it is seldom the transformer that accounts for the risk; it is, in fact, the surrounding conditions that matter. For example, two identical 32 kVA units can be different regarding losses, impedance, and winding material, which will only be apparent when it comes to the rise in temperature and operating costs.<\/p>\n<p>Subian constructs equipment using the ISO9001, ISO14001, and ISO45001 standards, and has CE and UL certifications. Their product offerings range in size from 30 to 2,500 kVA, including oil-immersed distribution units and cast-resin type units. They provide routine test reports on every product shipped.<\/p>\n<p>Since small transformers are frequently purchased in several multiples, request a fixed datasheet and a constant lead time alongside the pricing. This is the chain that keeps a replacement program going.<\/p>\n<div class=\"hy-lb-btn-wrap\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n\n<section class=\"subian-semv2-cred\" aria-labelledby=\"subian-semv2-cred-title\">\n<div class=\"subian-semv2-cred-head\">\n<h2 id=\"subian-semv2-cred-title\" class=\"subian-semv2-cred-title\">Certifications &amp; Quality Assurance<\/h2>\n<p class=\"subian-semv2-cred-intro\">Transformer production is covered by ISO9001, ISO14001 and ISO45001 systems with CE and UL certification; every unit is routine-tested and shipped with its own test record.<\/p>\n<\/div>\n<h3 class=\"subian-semv2-cred-subtitle\">Product Certifications<\/h3>\n<div class=\"swiper subian-ab-cert-swiper\"><div class=\"swiper-wrapper\"><div class=\"swiper-slide\" role=\"group\" aria-label=\"1 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-10kv-dry-type-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"10 kV Dry-Type Transformer Certificate\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-10kv-dry-type-certificate.webp\" class=\"attachment-large size-large\" alt=\"10 kV Dry-Type Transformer Certificate\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">10 kV Dry-Type Transformer Certificate<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"2 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CB Certificate\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" class=\"attachment-large size-large\" alt=\"35 kV Transformer CB Certificate\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">35 kV Transformer CB Certificate<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"3 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CE Verification\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" class=\"attachment-large size-large\" alt=\"35 kV Transformer CE Verification\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">35 kV Transformer CE Verification<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"4 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"Transformer CE Certificate\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" class=\"attachment-large size-large\" alt=\"Transformer CE Certificate\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">Transformer CE Certificate<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"5 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"Dry-Type Transformer Test Verification\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" class=\"attachment-large size-large\" alt=\"Dry-Type Transformer Test Verification\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">Dry-Type Transformer Test Verification<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"6 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 14001 Environmental Management\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" class=\"attachment-large size-large\" alt=\"ISO 14001 Environmental Management\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">ISO 14001 Environmental Management<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"7 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 45001 Health &amp; Safety\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" class=\"attachment-large size-large\" alt=\"ISO 45001 Health &amp; Safety\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">ISO 45001 Health &amp; Safety<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"8 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 9001 Quality Management\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" class=\"attachment-large size-large\" alt=\"ISO 9001 Quality Management\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">ISO 9001 Quality Management<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"9 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ssz22-63000-110-nx1-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"110 kV Transformer Type Test Report\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ssz22-63000-110-nx1-certificate.webp\" class=\"attachment-large size-large\" alt=\"110 kV Transformer Type Test Report\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">110 kV Transformer Type Test Report<\/strong><\/a><\/div><div class=\"swiper-slide\" role=\"group\" aria-label=\"10 \/ 10\"><a href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" class=\"subian-ab-cert glightbox3\" data-gallery=\"subian-about-certificates\" data-title=\"UL Certificate of Compliance\"><span><img width=\"600\" height=\"848\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" class=\"attachment-large size-large\" alt=\"UL Certificate of Compliance\" loading=\"lazy\" decoding=\"async\"><\/span><strong class=\"f18 lh-13\">UL Certificate of Compliance<\/strong><\/a><\/div><\/div><\/div>\n<p> <\/p>\n<\/section>\n\n<section class=\"subian-related\" style=\"margin: 40px 0;\">\n<div style=\"max-width: 1200px; margin: 0 auto; padding: 0 24px;\">\n<h2 style=\"font-size: 24px; margin-bottom: 12px;\">Related Manufacturer Guides<\/h2>\n<ul style=\"columns: 2; column-gap: 48px; margin: 0; padding-left: 20px; line-height: 2;\">\n<li><a href=\"\/175-kva-transformer\/\">175 kVA Transformer<\/a><\/li><li><a href=\"\/40-mva-transformer\/\">40 MVA Transformer<\/a><\/li><li><a href=\"\/1750-kva-transformer\/\">1750 kVA Transformer<\/a><\/li><li><a href=\"\/150-kva-step-down-transformer\/\">150 kVA Step Down Transformer<\/a><\/li><li><a href=\"\/450-kva-transformer\/\">450 kVA Transformer<\/a><\/li><li><a href=\"\/european-power-transformer\/\">European Power Transformer<\/a><\/li>\n<\/ul>\n<\/div>\n<\/section>\n\n<section class=\"subian-faq-contact\">\n<div class=\"subian-faq-contact__container\">\n<div class=\"subian-faq-contact__grid\">\n<div class=\"subian-faq-contact__left\"><span class=\"subian-faq-contact__eyebrow\">FAQs<\/span>\n<h2 class=\"subian-faq-contact__title\">32 kVA Transformer FAQ<\/h2>\n<p class=\"subian-faq-contact__intro\">Common questions about the 32 kVA rating &#8211; current output, what kVA means, physical size and how to size the feeding breaker.<\/p>\n<div class=\"subian-faq\"><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">How many amps will a 30 kVA transformer produce?<\/summary><div class=\"subian-faq__answer\">A 30 kVA three-phase transformer delivers about 43 A per phase at 400V, about 42 A at 415V, about 36 A at 480V and about 72 A at 240V. On the primary side the current is much smaller &#8211; roughly 1.6 A at 11 kV and 0.9 A at 20 kV &#8211; which is why the primary protection is normally a fuse or a load-break switch rather than a large breaker. Current depends on voltage, so always quote the winding voltage when specifying cables and protection; the three-phase formula is kVA x 1,000 \/ (1.732 x voltage).<\/div><\/details><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">What does kVA mean in a transformer?<\/summary><div class=\"subian-faq__answer\">kVA stands for kilovolt-amperes: one kVA is 1,000 volt-amperes, and it is the apparent-power rating of the transformer. It combines voltage and current including the phase difference between them, which is why transformers are rated in kVA rather than kW &#8211; the limits are set by the current the windings can carry and the heat it produces, not by how much of that power the load converts into useful work. A 32 kVA transformer can supply 32 kVA of apparent power; the real power delivered in kW equals the kVA multiplied by the power factor, about 25.6 kW at 0.8 power factor.<\/div><\/details><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">How big is a 30 kVA transformer?<\/summary><div class=\"subian-faq__answer\">An oil-immersed 30 kVA distribution transformer is a compact unit, roughly 700-900 mm long, 400-550 mm wide and 800-1,100 mm high, weighing about 250-400 kg including the oil charge. A dry-type unit of the same rating is lighter overall because there is no oil or heavy sealed tank, but it needs air clearance around the enclosure for cooling. For scale, the 100 kVA reference unit in our range measures 1,000-1,200 x 500-700 x 1,100-1,400 mm and weighs 600-900 kg. Final dimensions and weight are confirmed on the approval drawing, and the pole bracket or plinth is sized from that weight.<\/div><\/details><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">What size breaker to feed a 30 kVA transformer?<\/summary><div class=\"subian-faq__answer\">Size the breaker from the transformer full-load current and then apply the protection factor. A 30 kVA unit at 400V draws about 43 A, so a 60 A moulded-case breaker is the usual secondary choice (43 x 1.25 = 54 A, rounded up to the next standard frame). On the primary side the current is only about 1.6 A at 11 kV, so a small fuse or load-break switch is normal. A 32 kVA unit follows the same method &#8211; about 46 A and the same 60 A frame. Where the transformer is protected on both sides, both IEC and NEC practice allow the secondary device at up to 125% of rated current; check selectivity with the upstream device and the breaker&#8217;s inrush withstand before finalising.<\/div><\/details><\/div>\n<\/div>\n<div class=\"subian-faq-contact__form\">\n<p class=\"subian-faq-contact__form-label\">Contact Subian<\/p>\n<h3 class=\"subian-faq-contact__form-title\">Need the Right Specification?<\/h3>\n<p class=\"subian-faq-contact__form-copy\">Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.<\/p>\n<div class='fluentform ff-default fluentform_wrapper_1 ffs_default_wrap'><form data-form_id=\"1\" id=\"fluentform_1\" class=\"frm-fluent-form fluent_form_1 ff-el-form-top ff_form_instance_1_1 ff-form-loading ffs_default\" data-form_instance=\"ff_form_instance_1_1\" method=\"POST\" ><fieldset  style=\"border: none!important;margin: 0!important;padding: 0!important;background-color: transparent!important;box-shadow: none!important;outline: none!important; min-inline-size: 100%;\">\n                    <legend class=\"ff_screen_reader_title\" style=\"display: block; margin: 0!important;padding: 0!important;height: 0!important;text-indent: -999999px;width: 0!important;overflow:hidden;\">Contact Form Demo<\/legend>        <div\n                style=\"display: none!important; position: absolute!important; transform: translateX(1000%)!important;\"\n                class=\"ff-el-group ff-hpsf-container\"\n        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\"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 30 kVA three-phase transformer delivers about 43 A per phase at 400V, about 42 A at 415V, about 36 A at 480V and about 72 A at 240V. On the primary side the current is much smaller - roughly 1.6 A at 11 kV and 0.9 A at 20 kV - which is why the primary protection is normally a fuse or a load-break switch rather than a large breaker. Current depends on voltage, so always quote the winding voltage when specifying cables and protection; the three-phase formula is kVA x 1,000 \/ (1.732 x voltage).\"}}, {\"@type\": \"Question\", \"name\": \"What does kVA mean in a transformer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"kVA stands for kilovolt-amperes: one kVA is 1,000 volt-amperes, and it is the apparent-power rating of the transformer. It combines voltage and current including the phase difference between them, which is why transformers are rated in kVA rather than kW - the limits are set by the current the windings can carry and the heat it produces, not by how much of that power the load converts into useful work. A 32 kVA transformer can supply 32 kVA of apparent power; the real power delivered in kW equals the kVA multiplied by the power factor, about 25.6 kW at 0.8 power factor.\"}}, {\"@type\": \"Question\", \"name\": \"How big is a 30 kVA transformer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An oil-immersed 30 kVA distribution transformer is a compact unit, roughly 700-900 mm long, 400-550 mm wide and 800-1,100 mm high, weighing about 250-400 kg including the oil charge. A dry-type unit of the same rating is lighter overall because there is no oil or heavy sealed tank, but it needs air clearance around the enclosure for cooling. For scale, the 100 kVA reference unit in our range measures 1,000-1,200 x 500-700 x 1,100-1,400 mm and weighs 600-900 kg. Final dimensions and weight are confirmed on the approval drawing, and the pole bracket or plinth is sized from that weight.\"}}, {\"@type\": \"Question\", \"name\": \"What size breaker to feed a 30 kVA transformer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Size the breaker from the transformer full-load current and then apply the protection factor. A 30 kVA unit at 400V draws about 43 A, so a 60 A moulded-case breaker is the usual secondary choice (43 x 1.25 = 54 A, rounded up to the next standard frame). On the primary side the current is only about 1.6 A at 11 kV, so a small fuse or load-break switch is normal. A 32 kVA unit follows the same method - about 46 A and the same 60 A frame. Where the transformer is protected on both sides, both IEC and NEC practice allow the secondary device at up to 125% of rated current; check selectivity with the upstream device and the breaker's inrush withstand before finalising.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>COMPANY PROFILE 32 kVA Transformer The 32 kVA transformers are produced by Subian Electric for small industries, commercial activities, and backup power requirements. This transformer has a voltage which is above the lower limit of the 30 kVA transformer that is contained in the page of distribution transformer in terms of design because it uses [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"subian-seo-landing.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-11524","page","type-page","status-publish","hentry"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/pages\/11524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/comments?post=11524"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/pages\/11524\/revisions"}],"predecessor-version":[{"id":11550,"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/pages\/11524\/revisions\/11550"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/pt\/wp-json\/wp\/v2\/media?parent=11524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}