{"id":10835,"date":"2026-08-29T23:43:12","date_gmt":"2026-08-29T15:43:12","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10835"},"modified":"2026-08-29T23:43:12","modified_gmt":"2026-08-29T15:43:12","slug":"prefabricated-transformer-a-versatile-and-convenient-solution-for","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ar\/news\/prefabricated-transformer-a-versatile-and-convenient-solution-for\/","title":{"rendered":"\u0627\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u0645\u064f\u0635\u0646\u0651\u0639 \u0645\u0633\u0628\u0642\u064b\u0627: \u062d\u0644 \u0645\u0631\u0646 \u0648\u0645\u0646\u0627\u0633\u0628 \u0644\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u0637\u0627\u0642\u0629"},"content":{"rendered":"<p>\u0625\u0646\u0647 \u0635\u0628\u0627\u062d \u064a\u0648\u0645 \u0627\u0644\u062b\u0644\u0627\u062b\u0627\u0621 \u0641\u064a \u0645\u0646\u0637\u0642\u0629 \u0635\u0646\u0627\u0639\u064a\u0629 \u0645\u062a\u0648\u0633\u0637\u0629 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\u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u062f\u0627\u062e\u0644 \u0627\u0644\u0648\u062d\u062f\u0629<\/h2>\n<p>\u0628\u064a\u0646\u0645\u0627 \u064a\u062d\u062f\u062f \u0627\u0644\u0645\u0635\u0646\u0639 \u0648\u0627\u0644\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0646\u0645\u0627\u0630\u062c \u0643\u0644 \u0645\u062d\u0648\u0644 \u0645\u0633\u0628\u0642 \u0627\u0644\u0635\u0646\u0639\u060c \u064a\u062a\u0643\u0648\u0646 \u0627\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u0645assembled \u0628\u0627\u0644\u0643\u0627\u0645\u0644 \u0628\u0634\u0643\u0644 \u0639\u0627\u0645 \u0645\u0646 \u062b\u0644\u0627\u062b\u0629 \u0625\u0644\u0649 \u0623\u0631\u0628\u0639\u0629 \u0645\u0643\u0648\u0646\u0627\u062a \u0648\u0638\u064a\u0641\u064a\u0629\u060c \u062c\u0645\u064a\u0639\u0647\u0627 \u0645\u0648\u0636\u0648\u0639\u0629 \u0641\u064a \u063a\u0644\u0627\u0641 \u0645\u0646 \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643 \u0627\u0644\u0645\u0642\u0648\u0649 \u0628\u0627\u0644\u0623\u0644\u064a\u0627\u0641 \u0627\u0644\u0632\u062c\u0627\u062c\u064a\u0629\u060c \u0648\u0627\u0644\u0630\u064a \u064a\u0628\u0644\u063a \u0639\u0631\u0636\u0647 \u0641\u064a \u0627\u0644\u0645\u062a\u0648\u0633\u0637 2.4-3.0 \u0645 \u0648\u0637\u0648\u0644\u0647 4-12 \u0645.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u062d\u062c\u0631\u0629<\/th>\n<th>\u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/th>\n<th>\u0627\u0644\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u062d\u062c\u0631\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u062a\u0648\u0633\u0637<\/td>\n<td>RMU (\u0648\u062d\u062f\u0629 \u0627\u0644\u062d\u0644\u0642\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629)\u060c \u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644 SF6 \u0623\u0648 \u0627\u0644\u0641\u0631\u0627\u063a\u060c \u0635\u0646\u062f\u0648\u0642 \u0627\u0644\u0643\u0627\u0628\u0644\u060c \u0645\u0631\u062d\u0644\u0627\u062a \u0627\u0644\u062d\u0645\u0627\u064a\u0629<\/td>\n<td>12\u201340.5 kV\u060c 400\u2013630 A \u0642\u0636\u064a\u0628 \u0646\u0627\u0642\u0644<\/td>\n<\/tr>\n<tr>\n<td>\u062d\u062c\u0631\u0629 \u0627\u0644\u0645\u062d\u0648\u0644<\/td>\n<td>\u0645\u062d\u0648\u0644 \u0645\u063a\u0645\u0648\u0631 \u0628\u0627\u0644\u0632\u064a\u062a \u0623\u0648 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062c\u0627\u0641\u060c \u0627\u062d\u062a\u0648\u0627\u0621 \u0627\u0644\u0632\u064a\u062a\u060c \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u060c \u0627\u0644\u062a\u0647\u0648\u064a\u0629<\/td>\n<td>50\u20132,500 \u0643VA<\/td>\n<\/tr>\n<tr>\n<td>\u062d\u062c\u0631\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636<\/td>\n<td>\u0644\u0648\u062d\u0629 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636\u060c \u0627\u0644\u0645\u063a\u0630\u064a\u0627\u062a \u0627\u0644\u062e\u0627\u0631\u062c\u0629\u060c \u0627\u0644\u0642\u064a\u0627\u0633\u060c \u0628\u0646\u0643 \u0627\u0644\u0645\u0643\u062b\u0641\u0627\u062a (\u0627\u062e\u062a\u064a\u0627\u0631\u064a)\u060c \u0648\u0627\u0642\u064a\u0627\u062a \u0627\u0644\u0635\u0648\u0627\u0639\u0642<\/td>\n<td>400 V \/ 690 V\u060c \u062d\u062a\u0649 4,000 A<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u0633\u0627\u0639\u062f\u0629<\/td>\n<td>\u0633\u062e\u0627\u0646\u0627\u062a\u060c \u0625\u0636\u0627\u0621\u0629\u060c \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u062a\u0643\u062b\u0641\u060c \u0642\u0636\u064a\u0628 \u062a\u0623\u0631\u064a\u0636\u060c \u0623\u0642\u0641\u0627\u0644 \u0627\u0644\u0623\u0628\u0648\u0627\u0628<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u062b\u0644\u0627\u062b \u0645\u064a\u0632\u0627\u062a \u062a\u0645\u064a\u0632 \u0627\u0644\u0648\u062d\u062f\u0627\u062a \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u0629 \u0639\u0646 \u0646\u0638\u064a\u0631\u0627\u062a\u0647\u0627 \u0627\u0644\u0636\u0639\u064a\u0641\u0629: \u062d\u0648\u0636 \u0632\u064a\u062a \u0623\u0633\u0641\u0644 \u0627\u0644\u0645\u062d\u0648\u0644 \u0644\u0625\u062f\u0627\u0631\u0629 \u0623\u064a \u062a\u0633\u0631\u064a\u0628\u0627\u062a\u061b \u0641\u062a\u062d\u0627\u062a \u0647\u0648\u0627\u0621 \u0645\u0635\u0641\u0627\u0629\u060c \u062a\u0645 \u062a\u0635\u0645\u064a\u0645\u0647\u0627 \u0648\u0641\u0642\u064b\u0627 \u0644\u0645\u0639\u0627\u064a\u064a\u0631 IP54\u061b \u0648\u0642\u0627\u0639\u062f\u0629 \u0645\u062c\u0644\u0641\u0646\u0629 \u0628\u0627\u0644\u063a\u0645\u0633 \u0627\u0644\u0633\u0627\u062e\u0646 \u0645\u0631\u062a\u0641\u0639\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0642\u0644 500-800 \u0645\u0645 \u0641\u0648\u0642 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0623\u0631\u0636.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10837\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Core-Components-Inside-the-Unit.webp\" alt=\"\u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u062f\u0627\u062e\u0644 \u0627\u0644\u0648\u062d\u062f\u0629\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"how\">\u0643\u064a\u0641 \u064a\u0639\u0645\u0644 \u0627\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u0645\u0633\u0628\u0642 \u0627\u0644\u0635\u0646\u0639<\/h2>\n<p>\u0637\u0631\u064a\u0642\u0629 \u062a\u0634\u063a\u064a\u0644 \u0647\u0630\u0647 \u0627\u0644\u0648\u062d\u062f\u0629 \u0645\u0634\u0627\u0628\u0647\u0629 \u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u064a \u0645\u062d\u0648\u0644 \u062a\u0648\u0632\u064a\u0639\u060c \u0648\u0644\u0643\u0646 \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u062a\u0645 \u0628\u0646\u0627\u0621 \u0627\u0644\u0648\u062d\u062f\u0629 \u0628\u062a\u062e\u0637\u064a\u0637 \u0645\u062e\u062a\u0644\u0641. \u064a\u062f\u062e\u0644 \u0625\u0645\u062f\u0627\u062f \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u062a\u0648\u0633\u0637 \u0625\u0644\u0649 RMU\u060c \u062d\u064a\u062b \u064a\u062a\u0645 \u062a\u0628\u062f\u064a\u0644\u0647 \u0648\u062d\u0645\u0627\u064a\u062a\u0647 \u0645\u0646 \u0623\u0639\u0637\u0627\u0644 \u0627\u0644\u062d\u0644\u0642\u0629 \u0627\u0644\u0648\u0627\u0631\u062f\u0629 \u0623\u0648 \u0627\u0644\u062e\u0637 \u0627\u0644\u0634\u0639\u0627\u0639\u064a. \u0628\u0639\u062f \u0630\u0644\u0643\u060c \u064a\u062a\u0645 \u0646\u0642\u0644 \u0627\u0644\u062a\u063a\u0630\u064a\u0629 \u0625\u0644\u0649 \u0627\u0644\u0645\u062d\u0648\u0644\u060c \u0627\u0644\u0630\u064a \u064a\u0642\u0644\u0644 \u0627\u0644\u062c\u0647\u062f \u0645\u0646 11 kV\u060c 22 kV \u0623\u0648 33 kV \u0625\u0644\u0649 \u0645\u0633\u062a\u0648\u064a\u0627\u062a \u062b\u0644\u0627\u062b\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 400V \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0644\u0645\u0633\u062a\u0647\u0644\u0643\u064a\u0646. \u062b\u0645 \u062a\u0642\u0648\u0645 \u0644\u0648\u062d\u0629 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636 \u0628\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0639\u0644\u0649 \u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u063a\u0630\u064a\u0627\u062a \u0627\u0644\u062e\u0627\u0631\u062c\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u0645\u064a\u0647\u0627 MCCBs \u0623\u0648 ACBs\u060c \u0648\u064a\u0639\u0637\u064a \u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0639\u062a\u0645\u0627\u062f\u0627\u062a \u0644\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u0633\u062a\u0647\u0644\u0643\u0629.<\/p>\n<p>\u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0647\u0630\u0647 \u0627\u0644\u0646\u0633\u062e\u0629 \u0645\u0633\u0628\u0642\u0629 \u0627\u0644\u0635\u0646\u0639 \u0648\u0627\u0644\u0646\u0633\u062e\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0647\u0648 \u0647\u0646\u062f\u0633\u062a\u0647\u0627 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629. \u064a\u0646\u062a\u062c \u0627\u0644\u0645\u062d\u0648\u0644 \u062d\u0631\u0627\u0631\u0629 \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u062d\u0645\u0644\u0647 \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u064a\u062a\u0645 \u0648\u0636\u0639\u0647 \u062f\u0627\u062e\u0644 \u0635\u0646\u062f\u0648\u0642\u060c \u064a\u062d\u0645\u064a \u0627\u0644\u0645\u062d\u0648\u0644 \u0645\u0646 \u062a\u0623\u062b\u064a\u0631\u0627\u062a \u0627\u0644\u0637\u0642\u0633 \u0648\u064a\u0645\u0646\u0639 \u062a\u062f\u0641\u0642 \u0627\u0644\u0647\u0648\u0627\u0621. \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a\u060c \u062a\u0646\u0635 IEC 62271-202 \u0639\u0644\u0649 \u0623\u0646\u0647 \u064a\u062c\u0628 \u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0645\u0639 \u0627\u0644\u063a\u0644\u0627\u0641 \u0627\u0644\u0643\u0627\u0645\u0644 \u0644\u0644\u0645\u062d\u0648\u0644 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0625\u062c\u0631\u0627\u0621 \u0627\u062e\u062a\u0628\u0627\u0631 \u0644\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u0639\u0627\u0631\u064a. \u064a\u062c\u0628 \u0623\u0646 \u064a\u0648\u0641\u0631 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u062c\u064a\u062f \u062f\u0648\u0631\u0627\u0646 \u0627\u0644\u0647\u0648\u0627\u0621 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0641\u062a\u062d\u0627\u062a \u062f\u062e\u0648\u0644 \u0648\u062e\u0631\u0648\u062c.<\/p>\n<h2 id=\"types\">\u0627\u0644\u0623\u0646\u0648\u0627\u0639 \u0648\u0627\u0644\u062a\u0643\u0648\u064a\u0646\u0627\u062a<\/h2>\n<div>\u062a\u0635\u0646\u0641 \u0627\u0644\u0645\u062d\u0648\u0644\u0627\u062a \u0645\u0633\u0628\u0642\u0629 \u0627\u0644\u0635\u0646\u0639 \u062d\u0633\u0628 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u060c \u0645\u0627\u062f\u0629 \u0627\u0644\u063a\u0644\u0627\u0641\u060c \u0648\u062a\u0643\u0646\u0648\u0644\u0648\u062c\u064a\u0627 \u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644:<\/div>\n<div><\/div>\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u062a\u0635\u0646\u064a\u0641<\/th>\n<th>\u0627\u0644\u0645\u062a\u063a\u064a\u0631\u0627\u062a<\/th>\n<th>\u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0634\u0627\u0626\u0639<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\n<td>\u0645\u062b\u0628\u062a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0631\u0636\/\u0627\u0644\u0644\u0648\u062d\u060c \u0645\u062b\u0628\u062a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 (\u0648\u062d\u062f\u0627\u062a \u0635\u063a\u064a\u0631\u0629)\u060c \u0645\u062b\u0628\u062a\u0629 \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629<\/td>\n<td>\u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0623\u0631\u0636\u061b \u0648\u062d\u062f\u0627\u062a \u0635\u063a\u064a\u0631\u0629 \u0644\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0631\u064a\u0641\u064a\u0629 \u0648\u0627\u0644\u0645\u0624\u0642\u062a\u0629<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062d\u0627\u0648\u064a\u0629<\/td>\n<td>\u0641\u0648\u0644\u0627\u0630 \u0643\u0631\u0628\u0648\u0646\u064a \u0645\u0637\u0644\u064a\u060c \u0641\u0648\u0644\u0627\u0630 \u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623\u060c GRP\/\u0645\u0631\u0643\u0628<\/td>\n<td>\u0641\u0648\u0644\u0627\u0630 \u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623\/\u0645\u0631\u0643\u0628 \u0644\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u0633\u0627\u062d\u0644\u064a\u0629 \u0648\u0627\u0644\u062a\u0622\u0643\u0644<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0645\u062d\u0648\u0644<\/td>\n<td>\u0645\u063a\u0645\u0648\u0631 \u0628\u0627\u0644\u0632\u064a\u062a (ONAN)\u060c \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062c\u0627\u0641 (\u0631\u0627\u062a\u0646\u062c \u0645\u0635\u0628\u0648\u0628)<\/td>\n<td>\u0632\u064a\u062a \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0639\u0627\u0645\u061b \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062c\u0627\u0641 \u0644\u0644\u0645\u0648\u0627\u0642\u0639 \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0644\u0644\u0646\u064a\u0631\u0627\u0646 \u0623\u0648 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u062a\u0648\u0633\u0637<\/td>\n<td>RMU (\u0645\u0639\u0632\u0648\u0644\u0629 SF6\u060c \u0645\u0639\u0632\u0648\u0644\u0629 \u0635\u0644\u0628\u0629\u060c \u0623\u0648 \u0645\u0639\u0632\u0648\u0644\u0629 \u0628\u0627\u0644\u0647\u0648\u0627\u0621)\u060c \u0645\u0641\u062a\u0627\u062d \u0641\u0635\u0644 \u0627\u0644\u062d\u0645\u0644\u060c \u0642\u0627\u0637\u0639 \u062f\u0627\u0626\u0631\u0629 \u0641\u0631\u0627\u063a<\/td>\n<td>RMU \u0644\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u062d\u0644\u0642\u0629\u061b \u0642\u0627\u0637\u0639 \u0644\u0644\u063a\u0630\u064a\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0627\u0644\u0643\u0628\u064a\u0631\u0629 \u0627\u0644\u0641\u0631\u062f\u064a\u0629<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062a\u0643\u0648\u064a\u0646<\/td>\n<td>\u0648\u062d\u062f\u0629 \u0648\u0627\u062d\u062f\u0629\u060c \u062a\u062e\u0637\u064a\u0637 \u0645\u062a\u0633\u0644\u0633\u0644\/\u0645\u0646\u0642\u0633\u0645\u060c \u0645\u062d\u0637\u0629 \u0641\u0631\u0639\u064a\u0629 \u0635\u063a\u064a\u0631\u0629<\/td>\n<td>\u064a\u062a\u0646\u0627\u0633\u0628 \u0645\u0639 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u0648\u0642\u0639 \u0648\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u062d\u0645\u0644<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0641\u064a\u0645\u0627 \u064a\u062a\u0639\u0644\u0642 \u0628\u0645\u0632\u0627\u0631\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0648\u0637\u0627\u0642\u0629 \u0627\u0644\u0631\u064a\u0627\u062d\u060c \u0641\u0625\u0646 \u0627\u0644\u062a\u0643\u0648\u064a\u0646 \u0627\u0644\u062c\u062f\u064a\u062f \u0644\u0645\u062d\u0637\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u064a\u062f\u0645\u062c \u0648\u062d\u062f\u0629 MV\/LV \u0645\u0639 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 \u0627\u0644\u0639\u0627\u0643\u0633 \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u064a\u062a\u0636\u0645\u0646 \u0645\u062d\u0648\u0644 \u0631\u0641\u0639 \u0628\u0642\u062f\u0631\u0629 \u062a\u062a\u0631\u0627\u0648\u062d \u0628\u064a\u0646 2500 \u0625\u0644\u0649 4000 kVA \u0644\u0643\u0644 \u0648\u062d\u062f\u0629. \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u064a\u062a\u0645 \u062a\u0642\u062f\u064a\u0645 \u0647\u0630\u0627 \u0627\u0644\u0646\u0648\u0639 \u0643\u0645\u0646\u0635\u0629 \u0645\u062b\u0628\u062a\u0629 \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0644\u0648\u0636\u0639\u0647\u0627 \u0628\u0627\u0644\u0642\u0631\u0628 \u0645\u0646 \u0645\u062d\u0637\u0629 \u0627\u0644\u0639\u0627\u0643\u0633 \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0648\u0639\u0629.<\/p>\n<h2 id=\"benefits\">\u0644\u0645\u0627\u0630\u0627 \u064a\u062e\u062a\u0627\u0631 \u0627\u0644\u0645\u0634\u062a\u0631\u0648\u0646 \u0627\u0644\u0645\u062d\u0648\u0644\u0627\u062a \u0627\u0644\u062c\u0627\u0647\u0632\u0629 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0627\u0644\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u0645\u0628\u0646\u064a\u0629 \u0641\u064a \u0627\u0644\u0645\u0648\u0642\u0639<\/h2>\n<ul>\n<li>\u0627\u0644\u0633\u0631\u0639\u0629: \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0633\u062a\u063a\u0631\u0642 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0648\u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0645\u0646 2 \u0625\u0644\u0649 5 \u0623\u064a\u0627\u0645 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0641\u062a\u0631\u0629 \u0627\u0644\u0628\u0646\u0627\u0621 \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0631\u0627\u0648\u062d \u0645\u0646 4 \u0625\u0644\u0649 12 \u0623\u0633\u0628\u0648\u0639\u064b\u0627\u060c \u0648\u0647\u0648 \u0623\u0645\u0631 \u062d\u0627\u0633\u0645 \u0641\u064a \u0627\u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u0633\u0631\u064a\u0639\u0629.<\/li>\n<li>\u0627\u0644\u062a\u0643\u0644\u0641\u0629: \u063a\u064a\u0627\u0628 \u0627\u0644\u0645\u0631\u0627\u0641\u0642 \u0641\u064a \u0627\u0644\u0645\u0648\u0642\u0639\u060c \u0648\u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0645\u0642\u0627\u0648\u0644\u064a\u0646\u060c \u0648\u0623\u0639\u0645\u0627\u0644 \u0627\u0644\u0628\u0646\u0627\u0621 \u0627\u0644\u0637\u0648\u064a\u0644\u0629 \u062a\u0639\u0646\u064a \u0639\u0627\u062f\u0629 \u0623\u0646 \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a\u0629 \u0627\u0644\u0645\u062b\u0628\u062a\u0629 \u062a\u0646\u062e\u0641\u0636 \u0628\u0646\u0633\u0628\u0629 20 \u0625\u0644\u0649 40% \u0645\u0646 \u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a\u0629.<\/li>\n<li>\u0627\u0644\u062c\u0648\u062f\u0629: \u0648\u0641\u0642\u064b\u0627 \u0644\u0645\u0639\u0627\u064a\u064a\u0631 IEC 62271-202\u060c \u062a\u062e\u0636\u0639 \u0643\u0644 \u0648\u062d\u062f\u0629 \u0643\u0627\u0645\u0644\u0629 \u0644\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0644\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0642\u062f\u0631\u0627\u062a\u0647\u0627 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0648\u0627\u0644\u0639\u0627\u0632\u0644\u0629 \u0648\u0642\u062f\u0631\u0627\u062a \u0627\u0644\u0642\u0635\u0631.<\/li>\n<li>\u0625\u0645\u0643\u0627\u0646\u064a\u0629 \u0627\u0644\u0646\u0642\u0644: \u064a\u0645\u0643\u0646 \u0633\u062d\u0628 \u0627\u0644\u0648\u062d\u062f\u0629 \u0648\u062a\u063a\u0630\u064a\u062a\u0647\u0627 \u0641\u064a \u0645\u0648\u0642\u0639 \u062c\u062f\u064a\u062f \u0628\u0645\u062c\u0631\u062f \u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u062d\u0645\u0644.<\/li>\n<li>\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u0645\u062c\u0629: \u0628\u0636\u0639 \u0639\u0634\u0631\u0627\u062a \u0645\u0646 \u0627\u0644\u0623\u0645\u062a\u0627\u0631 \u0627\u0644\u0645\u0631\u0628\u0639\u0629 \u062a\u0643\u0641\u064a \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0645\u0648\u0627\u0642\u0639 \u0645\u062d\u0627\u0637\u0629 \u0628\u0633\u064a\u0627\u062c \u0648\u0645\u062a\u0635\u0644\u0629 \u0636\u062e\u0645\u0629.<\/li>\n<li>\u0627\u0644\u0644\u0648\u062c\u0633\u062a\u064a\u0627\u062a \u0627\u0644\u0633\u0644\u0633\u0629: \u0627\u0644\u062d\u0632\u0645\u0629 \u0627\u0644\u0648\u062d\u064a\u062f\u0629 \u0644\u0644\u062a\u0633\u0644\u064a\u0645 \u0645\u0642\u0627\u0631\u0646\u0629 \u0628\u0639\u0634\u0631\u0627\u062a \u0627\u0644\u0634\u062d\u0646\u0627\u062a \u0627\u0644\u0645\u0646\u0641\u0635\u0644\u0629 \u0647\u064a \u0645\u064a\u0632\u0629 \u0643\u0628\u064a\u0631\u0629.<\/li>\n<\/ul>\n<p>\u0641\u064a \u062d\u0627\u0644\u0629 \u0645\u0634\u0627\u0631\u064a\u0639 \u062a\u0648\u0644\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u062a\u062c\u062f\u062f\u0629 \u0627\u0644\u0645\u0648\u0632\u0639\u0629\u060c \u062a\u062a\u0636\u0627\u0639\u0641 \u0647\u0630\u0647 \u0627\u0644\u0645\u0632\u0627\u064a\u0627 \u062d\u064a\u062b \u062a\u0648\u062c\u062f \u0639\u0634\u0631\u0627\u062a \u0627\u0644\u0648\u062d\u062f\u0627\u062a \u0627\u0644\u0645\u0645\u0627\u062b\u0644\u0629\u060c \u0648\u0647\u0630\u0627 \u0647\u0648 \u0627\u0644\u0633\u0628\u0628 \u0641\u064a \u0623\u0646 \u0645\u0632\u0627\u0631\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0634\u0645\u0633\u064a\u0629 \u0648\u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0621 \u0627\u0644\u0631\u064a\u0641\u064a\u0629 \u062a\u0645\u064a\u0644 \u0625\u0644\u0649 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u062c\u0627\u0647\u0632\u0629 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0627\u0644\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u0645\u0628\u0646\u064a\u0629 \u0641\u064a \u0627\u0644\u0645\u0648\u0642\u0639.<\/p>\n<h2 id=\"compare\">\u0627\u0644\u0645\u062d\u0637\u0629 \u0627\u0644\u062c\u0627\u0647\u0632\u0629 \u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u0645\u062d\u0637\u0629 \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a\u0629<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u0639\u0627\u0645\u0644<\/th>\n<th>\u0627\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u062c\u0627\u0647\u0632<\/th>\n<th>\u0645\u062d\u0637\u0629 \u0641\u0631\u0639\u064a\u0629 \u062a\u0642\u0644\u064a\u062f\u064a\u0629<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u0623\u0639\u0645\u0627\u0644 \u0627\u0644\u0645\u062f\u0646\u064a\u0629<\/td>\n<td>\u0642\u0627\u0639\u062f\u0629 \u062e\u0631\u0633\u0627\u0646\u064a\u0629 \u0641\u0642\u0637<\/td>\n<td>\u0627\u0644\u0628\u0646\u0627\u0621\u060c \u0627\u0644\u0623\u0633\u0627\u0633\u060c \u0627\u0644\u0633\u064a\u0627\u062c<\/td>\n<\/tr>\n<tr>\n<td>\u0648\u0642\u062a \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\n<td>2\u20135 \u0623\u064a\u0627\u0645<\/td>\n<td>4\u201312 \u0623\u0633\u0628\u0648\u0639\u064b\u0627<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u062e\u062a\u0628\u0627\u0631<\/td>\n<td>\u0648\u062d\u062f\u0629 \u0643\u0627\u0645\u0644\u0629 \u0645\u062e\u062a\u0628\u0631\u0629 \u0641\u064a \u0627\u0644\u0645\u0635\u0646\u0639<\/td>\n<td>\u0645\u062c\u0645\u0639\u0629 \u0641\u064a \u0627\u0644\u0645\u0648\u0642\u0639\u060c \u063a\u064a\u0631 \u0645\u062e\u062a\u0628\u0631\u0629 \u062c\u0632\u0626\u064a\u064b\u0627<\/td>\n<\/tr>\n<tr>\n<td>\u0625\u0639\u0627\u062f\u0629 \u0627\u0644\u062a\u0648\u0637\u064a\u0646<\/td>\n<td>\u0646\u0639\u0645<\/td>\n<td>\u0644\u0627<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0628\u0635\u0645\u0629<\/td>\n<td>~10\u201340 m\u00b2<\/td>\n<td>Typically 100+ m\u00b2 with access<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a\u0629 \u0627\u0644\u0645\u062b\u0628\u062a\u0629<\/td>\n<td>20\u201340% lower typical<\/td>\n<td>Higher civil and labor share<\/td>\n<\/tr>\n<tr>\n<td>Customization<\/td>\n<td>Configurable but standardized<\/td>\n<td>Fully bespoke<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Traditional substations are the appropriate solution for transmission voltages of 66 kV and higher as well as huge distribution centers in stable buildings. For less than 40.5 kV, the prefabricated substation is now the norm in the majority of foreign markets.<\/p>\n<h2 id=\"specs\">Typical Specifications<\/h2>\n<p>A typical demonstrative medium-sized unit of 630 kVA, 33 kV\/0.4 kV, used in various industrial and commercial projects.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u0645\u0639\u0627\u0645\u0644<\/th>\n<th>\u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0645\u062d\u0648\u0644<\/td>\n<td>630 kVA, oil-immersed, ONAN<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0623\u0648\u0644\u064a<\/td>\n<td>33 kV (also 11\/22\/35 kV)<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062c\u0647\u062f \u0627\u0644\u062b\u0627\u0646\u0648\u064a<\/td>\n<td>400\/230 V, 50 Hz<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u062a\u062c\u0647\u0627\u062a<\/td>\n<td>\u062f\u064a\u064611<\/td>\n<\/tr>\n<tr>\n<td>\u0641\u0642\u062f\u0627\u0646 \u0628\u062f\u0648\u0646 \u062a\u062d\u0645\u064a\u0644<\/td>\n<td>~1.0\u20131.3 kW (depends on loss class)<\/td>\n<\/tr>\n<tr>\n<td>Load loss at 75\u00b0C<\/td>\n<td>~7.5\u20139.5 kW<\/td>\n<\/tr>\n<tr>\n<td>\u062c\u0647\u062f \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629<\/td>\n<td>4%\u20136%<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u062a\u0648\u0633\u0637<\/td>\n<td>SF6 RMU, 630 A busbar, 20 kA\/3s<\/td>\n<\/tr>\n<tr>\n<td>LV switchboard<\/td>\n<td>400 A\u2013630 A main, MCCB outgoing feeders<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u062d\u0627\u0648\u064a\u0629<\/td>\n<td>IP54, hot-dip galvanized base, painted steel<\/td>\n<\/tr>\n<tr>\n<td>\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0636\u0648\u0636\u0627\u0621<\/td>\n<td>\u2264 55 dB(A) at 1 m per IEC 60076-10<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631<\/td>\n<td>IEC 62271-202, IEC 60076, IEC 60529<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Standard tests carried out as per IEC 60076, include testing of resistance of windings, testing of ratio and group of windings, short-circuit impedance, testing of no-load and load losses including insulation resistance and dielectric tests for the specified value of voltage. Type tests comprise tests for temperature rise, tests for impulse voltage, and tests for short-circuit resistance.<\/p>\n<h2 id=\"applications\">Application Areas<\/h2>\n<ul>\n<li>In urban and commercial distribution, residences, malls, office buildings, and streets create an environment where space utilization and speed of energization are important.<\/li>\n<li>In the case of industrial areas, there is only one solution per factory or cluster. Units in this category can adapt their capacity in increments of 400-1,600 kVA depending on the growth of tenants.<\/li>\n<li>For renewable energy plants, prefabricated units serve as a connection point between inverter stations and the grid. The size of these units varies from 1,000 to 4,000 kVA.<\/li>\n<li>In terms of rural electrification, mini-prefabricated units allow connecting remote villages and farmers to the grid.<\/li>\n<li>For temporary and emergency power, an example would be the installation of skid-mounted units on disaster recovery, events, or construction sites quickly.<\/li>\n<li>Mining and remote operations installations rely on ready-made products for lack of local production capabilities.<\/li>\n<\/ul>\n<p>In all cases the unit has the same objectives: to take the medium-voltage feed, convert it to utilization voltage, protect it, meter it and deliver the necessary amount of power to a specific load.<\/p>\n<h2 id=\"standards\">Standards and Testing<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0645\u0639\u064a\u0627\u0631<\/th>\n<th>\u0627\u0644\u0646\u0637\u0627\u0642<\/th>\n<th>Key Buyer Check<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>IEC 62271-202<\/td>\n<td>Prefabricated transformer substations<\/td>\n<td>Complete-unit type tests: temperature rise, short circuit, dielectric<\/td>\n<\/tr>\n<tr>\n<td>IEC 60076<\/td>\n<td>Power transformers<\/td>\n<td>Rating, losses, routine and type tests<\/td>\n<\/tr>\n<tr>\n<td>IEC 60529<\/td>\n<td>Enclosure protection (IP code)<\/td>\n<td>IP54 minimum for outdoor units<\/td>\n<\/tr>\n<tr>\n<td>IEC 62271-200<\/td>\n<td>MV metal-enclosed switchgear<\/td>\n<td>RMU safety and internal arc classification<\/td>\n<\/tr>\n<tr>\n<td>IEC 61000-4<\/td>\n<td>EMC (electromagnetic compatibility)<\/td>\n<td>Relay immunity in the enclosure<\/td>\n<\/tr>\n<tr>\n<td>IEEE C57.12.27 (N. America)<\/td>\n<td>Pad-mount equipment integrity<\/td>\n<td>Dead-front construction, tamper resistance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>In export orders, one of the most important documents is IEC 62271-202 type test report for the entire unit, especially temperature-rise test with fitted enclosure. Some suppliers with low costs carry out tests only for the transformer without its enclosure, which may conceal derating issues in hot climate areas. Always make sure that you request the report on the complete unit. In case of large orders, you might need a factory test witness as well.<\/p>\n<h2 id=\"costs\">Costs and Price Ranges<\/h2>\n<p>Indicative prices for prefabricated transformer stations (RMU switchgear, oil-transformer station, LV panel, conventional painted steel enclosure):<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u062a\u0635\u0646\u064a\u0641<\/th>\n<th>Voltage Class<\/th>\n<th>\u0627\u0644\u0633\u0639\u0631 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a (\u062f\u0648\u0644\u0627\u0631 \u0623\u0645\u0631\u064a\u0643\u064a)<\/th>\n<th>\u0648\u0642\u062a \u0627\u0644\u062a\u0633\u0644\u064a\u0645<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>100\u2013315 kVA<\/td>\n<td>11\u201335 kV<\/td>\n<td>$4,000\u2013$12,000<\/td>\n<td>5\u201310 weeks<\/td>\n<\/tr>\n<tr>\n<td>400\u2013630 kVA<\/td>\n<td>11\u201335 kV<\/td>\n<td>$7,000\u2013$20,000<\/td>\n<td>6\u201312 \u0623\u0633\u0628\u0648\u0639\u064b\u0627<\/td>\n<\/tr>\n<tr>\n<td>800\u20131,250 kVA<\/td>\n<td>11\u201335 kV<\/td>\n<td>$11,000\u2013$33,000<\/td>\n<td>8\u201314 \u0623\u0633\u0628\u0648\u0639\u064b\u0627<\/td>\n<\/tr>\n<tr>\n<td>1,600\u20132,500 kVA<\/td>\n<td>11\u201335 kV<\/td>\n<td>$24,000\u2013$60,000<\/td>\n<td>10\u201318 weeks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>One can add 15-30% for stainless-steel enclosures and 10-20% for dry transformers. In addition you would add $800-3000 for metering, monitoring, SCADA options. Prices are indicative FOB basis and may differ according to specification and brand. For losses evaluation purposes the 630 kVA unit with 500-1000 W lower no-load loss can save $300-900 in running costs, what might be important taking into account the asset lifetime of 25 years.<\/p>\n<h2 id=\"brands\">Top Brands &amp; Price Comparison<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0627\u0644\u0639\u0644\u0627\u0645\u0629 \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629<\/th>\n<th>\u0627\u0644\u062f\u0648\u0644\u0629<\/th>\n<th>\u0627\u0644\u0642\u0648\u0629<\/th>\n<th>Indicative Price \u2014 1,000 kVA (USD)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0634\u0646\u0627\u064a\u062f\u0631 \u0625\u0644\u0643\u062a\u0631\u064a\u0643<\/td>\n<td>\u0641\u0631\u0646\u0633\u0627<\/td>\n<td>RMU integration, global compact substation range<\/td>\n<td>$22,000\u2013$38,000<\/td>\n<\/tr>\n<tr>\n<td>\u0633\u064a\u0645\u0646\u0632<\/td>\n<td>\u0623\u0644\u0645\u0627\u0646\u064a\u0627<\/td>\n<td>Digital substation options, integrated protection<\/td>\n<td>$23,000\u2013$40,000<\/td>\n<\/tr>\n<tr>\n<td>ABB<\/td>\n<td>\u0633\u0648\u064a\u0633\u0631\u0627<\/td>\n<td>Broad portfolio, strong utility references<\/td>\n<td>$22,000\u2013$39,000<\/td>\n<\/tr>\n<tr>\n<td>\u0625\u064a\u062a\u0648\u0646<\/td>\n<td>\u0627\u0644\u0648\u0644\u0627\u064a\u0627\u062a \u0627\u0644\u0645\u062a\u062d\u062f\u0629 \u0627\u0644\u0623\u0645\u0631\u064a\u0643\u064a\u0629<\/td>\n<td>Pad-mount strength, North American market<\/td>\n<td>$20,000\u2013$36,000<\/td>\n<\/tr>\n<tr>\n<td>Hyosung \/ LS Electric<\/td>\n<td>Korea<\/td>\n<td>Compact units, strong Southeast Asia presence<\/td>\n<td>$19,000\u2013$34,000<\/td>\n<\/tr>\n<tr>\n<td>\u0634\u0631\u0643\u0629 \u062c\u064a\u0627\u0646\u063a\u0633\u0648 \u0633\u0648\u0628\u064a\u0646 \u0644\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629<\/td>\n<td>\u0627\u0644\u0635\u064a\u0646<\/td>\n<td>IEC 62271-202 units, oil\/dry options, OEM<\/td>\n<td>$11,000\u2013$33,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The main players on the market offer brand reliability, matured RMU product lines and global service network, which is of utmost importance for large utilities bidding with rigid insurance requirements. Jiangsu Subian Electric Power operates in a price-sensitive market segment offering IEC 62271-202-compliant prefabricated transformer substations with both oil-immersed and dry transformers, RMU or breaker switchgear and painted or stainless or composite enclosure.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10838\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-to-Choose-and-Buy.webp\" alt=\"How to Choose and Buy\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"howtochoose\">How to Choose and Buy<\/h2>\n<ul>\n<li>Determine the necessary load in kVA, as well as growth plan and power factor; make sure that maximum load does not exceed 60-80% of transformer rating.<\/li>\n<li>Establish network voltage and configuration (loop, radial, dual-feed), which will help to determine if to use RMU or circuit breaker.<\/li>\n<li>Match transformer to the site condition: oil-insulated transformer for open sites and dry transformer for indoor sensitive areas.<\/li>\n<li>Select the enclosure material depending on the environment: painted steel for good conditions, while stainless steel or composite is preferred in corrosive locations.<\/li>\n<li>Request full unit testing per IEC 62271-202 standards instead of merely transformer tests.<\/li>\n<li>Evaluate tropical deration; require temperature raise testing report for the ambient temperature over 40 C.<\/li>\n<li>Make comparisons based on losses not the price and add remote monitoring system in case the site is not manned.<\/li>\n<li>Verify the lead time and transportation; 630 kVA transformer unit fits into 40 ft container with larger units needing open top or flat rack transportation.<\/li>\n<\/ul>\n<h2 id=\"faq\">\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0645\u062a\u0643\u0631\u0631\u0629<\/h2>\n<h3>What is the difference between a prefabricated transformer and a box-type substation?<\/h3>\n<p>Both prefabricated transformer and box-type substation refer to the same type of equipment which represents an MV\/LV distribution device with a transformer, switchgear, and LV panel factory assembled in one enclosure according to IEC 62271-202. The term box type is widely used in China and in some regions of Asia whereas the term prefabricated substation is included in the IEC nomenclature and is commonly used in Europe and export tenders.<\/p>\n<h3>How much does a prefabricated transformer cost?<\/h3>\n<p>In general, the whole 400-1,000 kVA prefabricated transformers cost between $7,000 and $33,000 according to the switchgear types, enclosure materials, and loss classes while the prices of the 1,600-2,500 kVA ones start from $24,000 and can reach $60,000. If the enclosure is made of stainless steel, the cost increases by 15-30%, dry-type transformers add 10-20%, and monitoring upgrades do the same by $800-$3,000. The cost of shipping and installation is not included and should be considered separately.<\/p>\n<h3>\u0643\u0645 \u0645\u0646 \u0627\u0644\u0648\u0642\u062a \u062a\u0633\u062a\u063a\u0631\u0642 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u062a\u062b\u0628\u064a\u062a\u061f<\/h3>\n<p>The installation process generally lasts from 2 to 5 days if a concrete pad is ready beforehand and includes the work of cranes, fastening the unit, connecting the cables, etc. In comparison, the installation of a conventional substation takes from 4 to 12 weeks. As the unit is tested in the factory, commissioning problems arise rarely if the cable and pad correspond to the structure&#8217;s drawing.<\/p>\n<h3>Can a prefabricated transformer be relocated or upgraded later?<\/h3>\n<p>Yes, it is possible to lift and transport the unit to a new place; it is also possible to change the transformer for a bigger one having the same design. This is of great value for different industrial parks or temporary power connections and it is necessary for changing urban load situation.<\/p>\n<h3>What tests should I require before accepting a unit?<\/h3>\n<p>Before accepting a unit, it is necessary to require tests for the transformer according to IEC 60076 (calibration, winding resistance, losses, dielectric strength), tests for the switchgear and complete test for the whole prefabricated unit according to IEC 62271-202 (temperature rise with the enclosure, short-circuit resistance and internal arc). If it is an export unit, the tests should be witnessed by a representative of the receiving side and a certificate should be provided for shipment.<\/p>\n<h2 id=\"references\">\u0627\u0644\u0645\u0631\u0627\u062c\u0639<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 62271-202 \u2014 High-voltage switchgear and controlgear: Prefabricated substations<\/a> \u2014 the governing standard for prefabricated transformer design, safety, and complete-unit type testing.<\/li>\n<li><a href=\"https:\/\/iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076 series \u2014 Power transformers<\/a> \u2014 the base standard for ratings, losses, and testing of the transformers inside the unit.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 62271-200 \u2014 MV metal-enclosed switchgear<\/a> \u2014 requirements for RMU and breaker compartments.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60529 \u2014 Degrees of protection (IP Code)<\/a> \u2014 defines IP54\/IP55 enclosure ratings for outdoor units.<\/li>\n<li><a href=\"https:\/\/standards.ieee.org\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.27 \u2014 Pad-mounted equipment enclosure integrity<\/a> \u2014 North American dead-front and tamper-resistance requirements.<\/li>\n<li><a href=\"https:\/\/www.nema.org\" rel=\"nofollow noopener\" target=\"_blank\">NEMA \u2014 Distribution transformer application guidance<\/a> \u2014 rating and application guidance for transformer equipment in the Americas.<\/li>\n<li><a href=\"https:\/\/subian-electric.com\/ar\/\" rel=\"nofollow\">Jiangsu Subian Electric Power \u2014 official site<\/a> \u2014 manufacturer and exporter of IEC 62271-202 prefabricated transformer substations.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\u0627\u0644\u062e\u0627\u062a\u0645\u0629<\/h2>\n<p>Transformers prefabricated have become important tools of modern-day electric distribution, since it allows providing speediness, controlling costs, having factory quality, and giving flexibility in one transportable package. A full-fledged substation; which includes transformer, MV switchgear, LV switchgear, metering, and protection; arrives tested, and makes installation in days, rather than months.<\/p>\n<p>Main points:<\/p>\n<ul>\n<li>Specify on the peak load at 60-80% of the transformer rate and select switchgear according to network configuration.<\/li>\n<li>Choose the material of covering according to the setting and select stainless or composite for coastal or aggressive environments.<\/li>\n<li>Request IEC 62271-202 complete-unit type tests instead of just transformer tests.<\/li>\n<li>Evaluate offers according to losses and understand container logistics and lead time.<\/li>\n<li>Integrate global brands like Schneider, Siemens or ABB together with IEC-certified suppliers like Jiangsu Subian Electric Power.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>It is Tuesday morning at a medium-sized industrial estate near Nairobi, and the electricity crew has only one week to connect a new shoe production plant that was connected eight days ago. No one on the construction site is making a transformer platform or waiting for a brick enclosure; instead, a crane is lifting a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":10836,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-10835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/posts\/10835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/comments?post=10835"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/posts\/10835\/revisions"}],"predecessor-version":[{"id":11001,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/posts\/10835\/revisions\/11001"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/media\/10836"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/media?parent=10835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/categories?post=10835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ar\/wp-json\/wp\/v2\/tags?post=10835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}