China Wholesale 1750 Kva Transformer
Subian Electric manufactures larger distribution transformers including the 1750 kVA rating at our Xuzhou factory. This size serves industrial plants, commercial complexes and dense distribution areas, stepping medium voltage – commonly 11kV, 20kV or 33kV – down to the 400V/230V system.
With in-house core and coil production, vacuum processing and complete testing, our 50,000-square-metre factory delivers 1750 kVA units with guaranteed loss data and routine test reports, supported by 350+ staff and 50+ export countries since 2019.
Send your load profile and primary voltage, and our engineers will confirm the rating, losses and factory quotation.
Since 2019 · 50,000m² · 350+ Staff
Power & Distribution Transformers We Build
Oil-immersed and dry-type transformers from distribution ratings to several MVA, including 1750 kVA units for industrial and large-load projects.
-
10kV Dry-Type Transformer-SCBH series Amorphous Alloy
-
20-35KV Dry-Type Transformer
-
20-35KV SCB Series Epoxy Resin Dry-Type Transformer
-
20KV Oil-immersed Distribution Transformer
-
35KV Oil-immersed Power Transformer
-
6-10KV Oil-Immersed Power Distribution Transformer
-
Current Transformer –10KV Indoor High Voltage
-
Current Transformer–LMZK Wound Current Transformer300/5a
-
Current Transformer–LSY-10 transformer Integrated CT
-
current transformer–LXK high voltage zero sequence
-
dry type distribution transformer-6-10 KV SCB series epoxy resin cast
-
Electrical Transformers–JDZ – 10 Power Voltage
What Is a 1750 kVA Transformer?
A 1750 kVA transformer is a three-phase unit rated for 1750 kilovolt-amperes, typically installed where a medium-voltage supply feeds a large low-voltage load: industrial plants, data centres, commercial complexes and distribution substations. It delivers about 1.4 MW at a typical 0.8 power factor.
At this size the transformer is a major asset, so specification focuses on loss efficiency, impedance matching with the network, cooling and the protection scheme around it. Most 1750 kVA units are oil-immersed for outdoor installation, with dry-type options where indoor fire rules apply.
- 1.4 MW class at 0.8 pf – serves large industrial and commercial loads.
- 11 / 20 / 33 kV primaries – with 400V/230V or custom secondaries.
- Oil-immersed standard – dry-type for indoor duty.
- Loss-optimised designs – options to meet efficiency targets.
- Full test documentation – type and routine test evidence supplied.
- Project engineering – impedance and protection coordination support.
Configuration Options
Installation site, fire rules and network practice decide the configuration:
Oil-immersed outdoor type
the standard for substations and plant yards.
Dry-type indoor unit
for high-rise, tunnel and fire-sensitive sites.
Custom impedance & tappings
matched to the network and load flow study.
1750 kVA Transformer Technical Data
| Parameter | Specification |
|---|---|
| Rated capacity | 1,750 kVA, three-phase |
| Primary voltage | 11 / 20 / 33 kV (per project) |
| Secondary voltage | 0.4 kV or custom |
| Cooling | ONAN / ONAF options (oil) · air (dry) |
| Vector group | Dyn11 / Dyn5 / Ynd11 |
| Impedance | per network study (typically 6-8%) |
| Standard | IEC 60076 / GB 1094 |
Loading and Current Data for Planning
At 0.8 power factor the unit delivers about 1,400 kW; full-load current on the 400V secondary is about 2,526 A per phase, on an 11kV primary about 92 A, and on a 33kV primary about 31 A. The secondary current normally requires busbar or multiple cables per phase rather than a single feeder.
Because the secondary current is high, the LV switchgear, busbar and cable terminations must be designed for the rating and its fault level. Our drawings include the terminal arrangement so the LV package can be engineered in parallel with the transformer order.
Indicative full-load figures
| Secondary 400 V | approx. 2,526 A per phase |
|---|---|
| Primary 11 kV | approx. 92 A |
| Primary 33 kV | approx. 31 A |
| Real load at 0.8 pf | approx. 1,400 kW |
Large Transformer Production and Testing
Larger ratings are built on the same controlled lines with additional process checks, and every unit is fully tested before dispatch.
Winding & Core
Large coils are wound and dried under controlled conditions for consistent losses.
1750 kVA Transformer Price & Quotation
Send your load data and primary voltage, and our engineers will confirm the rating, impedance, losses and a written factory quotation with delivery for your project.
OEM / ODM & Project Supply
EPC contractors and industrial buyers take 1750 kVA units as part of complete electrical packages.
OEM / ODM
Factory-Direct
Custom designs integrated into project packages.
Factory direct · Test docs · Export support
Project Supply
Bundled Supply
Transformers, switchgear and panels coordinated from one factory.
Factory direct · Test docs · Export support
Distributor Support
Channel Partners
Technical data and tender documentation.
Factory direct · Test docs · Export support
Choosing Between Nearby Ratings
Ratings near 1750 kVA include 1600 kVA and 2000 kVA in standard lists. The 1750 kVA unit suits projects whose calculated load sits between those values, or where the network operator accepts non-standard ratings with confirmed losses.
For a large single load the choice also depends on the impedance and short-circuit level the network can accept – a higher kVA at low impedance may raise fault levels beyond the switchgear rating. Our engineers review the load flow before confirming the economical rating.
Choosing a Supplier for This Rating
For a unit of this size, compare the guaranteed losses, the impedance range, the cooling margin and the manufacturer’s type-test evidence. Ask for reference deliveries of similar ratings and for the test format the project consultant requires.
Subian manufactures under ISO9001, ISO14001, ISO45001, CE and UL certified systems with a 110 kV type-test report in the documentation set, and supports projects with drawings, loss data and commissioning documentation.
Confirm delivery and handling: large transformers need transport planning, and a factory that coordinates packing, lifting and site delivery saves the buyer real time.
Certifications & Quality Assurance
Our transformer production runs under ISO9001, ISO14001 and ISO45001 systems with CE and UL certification and type-test evidence to 110 kV class.
Product Certifications
10 kV Dry-Type Transformer Certificate
35 kV Transformer CB Certificate
35 kV Transformer CE Verification
Transformer CE Certificate
Dry-Type Transformer Test Verification
ISO 14001 Environmental Management
ISO 45001 Health & Safety
ISO 9001 Quality Management
110 kV Transformer Type Test Report
UL Certificate of Compliance
1750 kVA Transformer Manufacturers & Suppliers FAQ
Questions about the 1750 kVA rating, its loading and project specification.
How many kW can a 1750 kVA transformer supply?
What is the full-load current of a 1750 kVA transformer?
Is 1750 kVA a standard rating?
Oil-immersed or dry-type at this rating?
What documents come with a 1750 kVA transformer?
Contact Subian
Need the Right Specification?
Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.