{"id":2722,"date":"2026-08-22T14:27:00","date_gmt":"2026-08-22T14:27:00","guid":{"rendered":"https:\/\/lbajiele.com\/?p=2722"},"modified":"2026-08-17T00:39:18","modified_gmt":"2026-08-17T00:39:18","slug":"75-kva-transformer-amps-guide","status":"publish","type":"post","link":"https:\/\/lbajiele.com\/ar\/blog\/75-kva-transformer-amps-guide\/","title":{"rendered":"\u0623\u0645\u0628\u064a\u0631 \u0645\u062d\u0648\u0644 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631: \u062f\u0644\u064a\u0644 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u0628\u062a\u062f\u0627\u0626\u064a \u0648\u0627\u0644\u062b\u0627\u0646\u0648\u064a"},"content":{"rendered":"<p><strong>\u0645\u062d\u0648\u0644 \u0628\u0642\u062f\u0631\u0629 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u0644\u064a\u0633 \u0644\u0647 \u062a\u0635\u0646\u064a\u0641 \u0623\u0645\u0628\u064a\u0631 \u062b\u0627\u0628\u062a \u0648\u0627\u062d\u062f.<\/strong> \u0627\u0644\u062a\u064a\u0627\u0631 \u064a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0627\u0644\u0637\u0648\u0631 \u0648\u0627\u0644\u062c\u0647\u062f: \u062a\u064a\u0627\u0631 \u0627\u0644\u0637\u0648\u0631 \u0627\u0644\u0648\u0627\u062d\u062f \u0647\u0648 75,000 \u00f7 V\u061b \u0648\u062a\u064a\u0627\u0631 \u062e\u0637 \u0627\u0644\u0623\u0637\u0648\u0627\u0631 \u0627\u0644\u062b\u0644\u0627\u062b\u0629 \u0647\u0648 75,000 \u00f7 (1.732 \u00d7 V). \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u064a\u0628\u0644\u063a \u062d\u0648\u0627\u0644\u064a 90.2 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 480 \u0641\u0648\u0644\u062a \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631 \u0648208.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 208 \u0641\u0648\u0644\u062a \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631.<\/p>\n<div class=\"lbaji-key-takeaways\"><h2>\u0627\u0644\u0646\u0642\u0627\u0637 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2><ul><li>\u0627\u0628\u062f\u0623 \u0628\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u064a \u062a\u0645 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647\u0627 \u0648\u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u062d\u0627\u0643\u0645.<\/li><li>\u0646\u0633\u0642 \u0627\u0644\u062a\u0642\u064a\u064a\u0645\u0627\u062a\u060c \u0648\u0627\u0644\u062d\u0645\u0627\u064a\u0629\u060c \u0648\u0627\u0644\u0628\u064a\u0626\u0629\u060c \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0643\u0642\u0631\u0627\u0631 \u0648\u0627\u062d\u062f.<\/li><li>\u0627\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0631\u0633\u0648\u0645\u0627\u062a\u060c \u0648\u0627\u0644\u062d\u0633\u0627\u0628\u0627\u062a\u060c \u0648\u0633\u062c\u0644\u0651\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0644\u062f\u0639\u0645 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0634\u0631\u0627\u0621.<\/li><\/ul><\/div>\n<h2>\u0635\u0645\u0639\u0629 \u062a\u064a\u0627\u0631 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 (75 kVA Current Formula)\n\n\u0644\u0644\u062d\u0633\u0627\u0628\u060c \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0642\u0627\u0646\u0648\u0646 \u0639\u0644\u0649 \u0643\u0648\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 (Single Phase) \u0623\u0648 \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631 (Three Phase):\n\n1. **\u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631 (Three Phase - \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u0627\u064b \u0639\u0646\u062f \u062c\u0647\u062f 400 \u0641\u0648\u0644\u062a):**\n   $$\\text{Current (Amps)} = \\frac{\\text{kVA} \\times 1000}{\\text{Voltage} \\times \\sqrt{3}}$$\n   \u0628\u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0627\u0644\u062c\u0647\u062f \u0647\u0648 400 \u0641\u0648\u0644\u062a:\n   $$\\text{Current} = \\frac{75 \\times 1000}{400 \\times 1.732} \\approx 108.25 \\text{ \u0623\u0645\u0628\u064a\u0631}$$\n\n2. **\u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 (Single Phase - \u0639\u0646\u062f \u062c\u0647\u062f 230 \u0641\u0648\u0644\u062a):**\n   $$\\text{Current (Amps)} = \\frac{\\text{kVA} \\times 1000}{\\text{Voltage}}$$\n   \u0628\u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0627\u0644\u062c\u0647\u062f \u0647\u0648 230 \u0641\u0648\u0644\u062a:\n   $$\\text{Current} = \\frac{75 \\times 1000}{230} \\approx 326.08 \\text{ \u0623\u0645\u0628\u064a\u0631}$$<\/h2><figure class=\"wp-block-image size-large\"><img decoding=\"async\" alt=\"Three-phase transformer and switchboard used for full-load current calculations\" loading=\"lazy\" src=\"https:\/\/lbajiele.com\/wp-content\/uploads\/2026\/08\/three-phase-kva-to-amps.png\"\/><figcaption>\u0645\u062d\u0648\u0644 \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631 \u0648\u0644\u0648\u062d\u0629 \u062a\u0648\u0632\u064a\u0639 \u062a\u0633\u062a\u062e\u062f\u0645 \u0644\u062d\u0633\u0627\u0628\u0627\u062a \u062a\u064a\u0627\u0631 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0645\u0644.<\/figcaption><\/figure><p>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0648\u062c\u0647 \u0627\u0644\u0623\u062d\u0627\u062f\u0649\u060c \u0627\u0644\u062a\u064a\u0627\u0631 = (\u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u00d7 1,000) \u00f7 \u0627\u0644\u062c\u0647\u062f. \u0623\u0645\u0627 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0648\u062c\u0647 \u0627\u0644\u062b\u0644\u0627\u062b\u0649\u060c \u0627\u0644\u062a\u064a\u0627\u0631 = (\u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u00d7 1,000) \u00f7 (\u0627\u0644\u062c\u0630\u0631 \u0627\u0644\u062a\u0631\u0628\u064a\u0639\u0649 \u0644\u0640 3 \u00d7 \u062c\u0647\u062f \u0627\u0644\u062e\u0637 \u0644\u0644\u062e\u0637). \u0627\u0633\u062a\u062e\u062f\u0645 \u062c\u0647\u062f \u0644\u0648\u062d\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636 \u0627\u0644\u0627\u0633\u0645\u064a. \u062a\u0635\u0641 \u0647\u0630\u0647 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062a\u064a\u0627\u0631 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0638\u0627\u0647\u0631\u064a \u0627\u0644\u0643\u0627\u0645\u0644\u061b \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0641\u0625\u0646 \u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0645\u0648\u0635\u0644\u0627\u062a \u0648\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u064a\u0638\u0644 \u062e\u0627\u0636\u0639\u0627\u064b \u0644\u0644\u0643\u0648\u062f \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u060c \u0648\u0648\u0627\u062c\u0628 \u0627\u0644\u062a\u062d\u0645\u064a\u0644\u060c \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u060c \u0648\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u0631\u0643\u064a\u0628.<\/p>\n<section class=\"lbaji-article-table\"><h2>\u062c\u062f\u0648\u0644 \u0645\u0642\u0627\u0631\u0646\u0629 \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0631\u064a\u0639<\/h2><p>\u0627\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0627 \u0627\u0644\u062c\u062f\u0648\u0644 \u0643\u0645\u0631\u0627\u062c\u0639\u0629 \u0633\u0631\u064a\u0639\u0629 \u0644\u0642\u0631\u0627\u0631\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0648\u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0645 \u0634\u0631\u062d\u0647\u0627 \u0641\u064a \u0627\u0644\u0645\u0642\u0627\u0644.<\/p><figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th scope=\"col\">\u0645\u0646\u0637\u0642\u0629 \u0627\u0644\u0642\u0631\u0627\u0631<\/th><th scope=\"col\">\u0627\u0644\u0645\u0639\u0646\u0649 \u0627\u0644\u0639\u0645\u0644\u064a<\/th><th scope=\"col\">\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647<\/th><\/tr><\/thead><tbody><tr><td>\u0635\u0645\u0639\u0629 \u062a\u064a\u0627\u0631 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 (75 kVA Current Formula)\n\n\u0644\u0644\u062d\u0633\u0627\u0628\u060c \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0642\u0627\u0646\u0648\u0646 \u0639\u0644\u0649 \u0643\u0648\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 (Single Phase) \u0623\u0648 \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631 (Three Phase):\n\n1. **\u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631 (Three Phase - \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u0627\u064b \u0639\u0646\u062f \u062c\u0647\u062f 400 \u0641\u0648\u0644\u062a):**\n   $$\\text{Current (Amps)} = \\frac{\\text{kVA} \\times 1000}{\\text{Voltage} \\times \\sqrt{3}}$$\n   \u0628\u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0627\u0644\u062c\u0647\u062f \u0647\u0648 400 \u0641\u0648\u0644\u062a:\n   $$\\text{Current} = \\frac{75 \\times 1000}{400 \\times 1.732} \\approx 108.25 \\text{ \u0623\u0645\u0628\u064a\u0631}$$\n\n2. **\u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 (Single Phase - \u0639\u0646\u062f \u062c\u0647\u062f 230 \u0641\u0648\u0644\u062a):**\n   $$\\text{Current (Amps)} = \\frac{\\text{kVA} \\times 1000}{\\text{Voltage}}$$\n   \u0628\u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0627\u0644\u062c\u0647\u062f \u0647\u0648 230 \u0641\u0648\u0644\u062a:\n   $$\\text{Current} = \\frac{75 \\times 1000}{230} \\approx 326.08 \\text{ \u0623\u0645\u0628\u064a\u0631}$$<\/td><td>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0648\u062c\u0647 \u0627\u0644\u0648\u0627\u062d\u062f (\u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631)\u060c $I = kVA \\times 1,000 \\div V$.<\/td><td>\u0644\u0644\u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631\u060c \u0627\u0644\u062a\u064a\u0627\u0631 (I) = \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 (kVA) \u00d7 1,000 \u00f7 (\u0627\u0644\u062c\u0630\u0631 \u0627\u0644\u062a\u0631\u0628\u064a\u0639\u064a \u0644\u0640 3 \u00d7 \u062c\u0647\u062f \u0627\u0644\u062e\u0637 \u0644\u0644\u062e\u0637).<\/td><\/tr><tr><td>\u062a\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0645\u0644 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0644\u0640 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631<\/td><td>\u0639\u0646\u062f \u062c\u0647\u062f 240 \u0641\u0648\u0644\u062a \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631\u060c \u064a\u0643\u0648\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062d\u0633\u0648\u0628 312.5 \u0623\u0645\u0628\u064a\u0631\u060c \u0648\u0639\u0646\u062f \u062c\u0647\u062f 480 \u0641\u0648\u0644\u062a \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 \u064a\u0643\u0648\u0646 156.3 \u0623\u0645\u0628\u064a\u0631.<\/td><td>\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631\u060c \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0647\u064a 90.2 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 480 \u0641\u0648\u0644\u062a\u060c 104.3 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 415 \u0641\u0648\u0644\u062a\u060c 108.3 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 400 \u0641\u0648\u0644\u062a\u060c 208.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 208 \u0641\u0648\u0644\u062a \u0648180.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 240 \u0641\u0648\u0644\u062a.<\/td><\/tr><tr><td>\u0627\u0644\u0645\u0636\u062e\u0645\u0627\u062a \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629<\/td><td>\u064a\u062d\u0645\u0644 \u0648\u062d\u062f\u0629 \u062b\u0644\u0627\u062b\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 \u0628\u0642\u062f\u0631\u0629 480 \u0625\u0644\u0649 208Y\/120 \u0641\u0648\u0644\u062a \u062d\u0648\u0627\u0644\u064a 90 \u0623\u0645\u0628\u064a\u0631 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 480 \u0641\u0648\u0644\u062a \u0648 208 \u0623\u0645\u0628\u064a\u0631 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 208 \u0641\u0648\u0644\u062a \u0639\u0646\u062f 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631.<\/td><td>\u064a\u063a\u064a\u0631 \u0627\u0644\u0645\u062d\u0648\u0644 \u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u062c\u0647\u062f \u0648\u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u064a\u0646\u0645\u0627 \u062a\u0628\u0642\u0649 \u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u0638\u0627\u0647\u0631\u064a\u0629 \u062b\u0627\u0628\u062a\u0629 \u062a\u0642\u0631\u064a\u0628\u0627\u064b\u060c \u0628\u0627\u0633\u062a\u062b\u0646\u0627\u0621 \u0627\u0644\u0641\u0642\u062f.<\/td><\/tr><tr><td>\u062d\u062c\u0645 \u0642\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0648\u0627\u0644\u0645\u0648\u0635\u0644<\/td><td>\u0644\u0627 \u062a\u062e\u062a\u0627\u0631 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0631\u0642\u0645 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0645\u0644 \u0648\u062d\u062f\u064e\u0647.<\/td><td>\u062a\u0633\u0645\u062d \u0627\u0644\u0643\u0648\u062f\u0627\u062a (\u0627\u0644\u0642\u0648\u0627\u0646\u064a\u0646\/\u0627\u0644\u0644\u0648\u0627\u0626\u062d) \u0623\u0648 \u062a\u0637\u0644\u0628 \u062a\u0631\u062a\u064a\u0628\u0627\u062a \u062d\u0645\u0627\u064a\u0629 \u0645\u062d\u062f\u062f\u0629 \u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u0642\u0637 \u0623\u0648 \u0623\u0633\u0627\u0633\u064a\u0629 \u0648\u0627\u0636\u062d\u0629\u060c \u0648\u062a\u0623\u062e\u0630 \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631 \u062a\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0642 (\u0623\u0648 \u0627\u0644\u0627\u0646\u062f\u0641\u0627\u0639).<\/td><\/tr><tr><td>\u0647\u0644 \u0642\u062f\u0631\u0629 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u0643\u0628\u064a\u0631\u0629 \u0628\u0645\u0627 \u064a\u0643\u0641\u064a\u061f<\/td><td>\u0623\u0636\u0641 \u0627\u0644\u062d\u0645\u0644 \u0628\u0627\u0644\u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 (kVA) \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0627\u0643\u062a\u0641\u0627\u0621 \u0628\u062c\u0645\u0639 \u0627\u0644\u0623\u0645\u0628\u064a\u0631\u0627\u062a \u0639\u0628\u0631 \u0627\u0644\u062c\u0647\u0648\u062f \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629.<\/td><td>\u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u0627\u0644\u0637\u0644\u0628\u060c \u0648\u0628\u062f\u0621 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u062d\u0631\u0643\u060c \u0648\u0627\u0644\u062a\u0648\u0627\u0641\u0642\u064a\u0627\u062a \u063a\u064a\u0631 \u0627\u0644\u062e\u0637\u064a\u0629\u060c \u0627\u0644\u062a\u0648\u0633\u0639 \u0627\u0644\u0645\u0633\u062a\u0642\u0628\u0644\u064a\u060c \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u062d\u064a\u0637\u0629\u060c \u0648\u062a\u0646\u0638\u064a\u0645 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0642\u0628\u0648\u0644.<\/td><\/tr><\/tbody><\/table><\/figure><\/section><h2>\u062a\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0645\u0644 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0644\u0640 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631<\/h2><p>\u0639\u0646\u062f \u062c\u0647\u062f 240 \u0641\u0648\u0644\u062a \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631\u060c \u064a\u0643\u0648\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062d\u0633\u0648\u0628 312.5 \u0623\u0645\u0628\u064a\u0631\u060c \u0648\u0639\u0646\u062f \u062c\u0647\u062f 480 \u0641\u0648\u0644\u062a \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 \u064a\u0643\u0648\u0646 156.3 \u0623\u0645\u0628\u064a\u0631. \u0623\u0645\u0627 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0637\u0648\u0631\u060c \u0641\u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0647\u064a 90.2 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 480 \u0641\u0648\u0644\u062a\u060c \u0648104.3 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 415 \u0641\u0648\u0644\u062a\u060c \u0648108.3 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 400 \u0641\u0648\u0644\u062a\u060c \u0648208.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 208 \u0641\u0648\u0644\u062a\u060c \u0648180.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 240 \u0641\u0648\u0644\u062a. \u064a\u062c\u0628 \u0639\u062f\u0645 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0642\u0631\u064a\u0628 \u0644\u0625\u062e\u0641\u0627\u0621 \u0639\u062f\u0645 \u062a\u0637\u0627\u0628\u0642 \u0627\u0644\u062c\u0647\u062f.<\/p>\n<p>\u0644\u063a\u0631\u0636 \u0625\u062c\u0631\u0627\u0621 \u0645\u0642\u0627\u0631\u0646\u0629 \u062e\u0627\u0635\u0629 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\u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u062d\u064a\u0629.<\/p>\n<h2>\u0627\u0644\u0645\u0636\u062e\u0645\u0627\u062a \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629<\/h2><figure class=\"wp-block-image size-large\"><img decoding=\"async\" alt=\"Coordinated transformer primary and secondary protection\" loading=\"lazy\" src=\"https:\/\/lbajiele.com\/wp-content\/uploads\/2026\/08\/transformer-breaker-fuse-sizing.png\"\/><figcaption>\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629 \u0644\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u0645\u0646\u0633\u0642\u0629.<\/figcaption><\/figure><p>\u062a\u062d\u0645\u0644 \u0648\u062d\u062f\u0629 \u062b\u0644\u0627\u062b\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 \u0628\u0642\u062f\u0631\u0629 480 \u0625\u0644\u0649 208 \u0641\u0648\u0644\u062a \u0648\u0627\u064a\/120 \u0641\u0648\u0644\u062a \u062d\u0648\u0627\u0644\u064a 90 \u0623\u0645\u0628\u064a\u0631 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 480 \u0641\u0648\u0644\u062a \u0648208 \u0623\u0645\u0628\u064a\u0631 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628 208 \u0641\u0648\u0644\u062a \u0639\u0646\u062f 75 \u0643\u0627\u0641\u0627 (kVA). \u064a\u0639\u0645\u0644 \u0627\u0644\u0645\u062d\u0648\u0644 \u0639\u0644\u0649 \u062a\u063a\u064a\u064a\u0631 \u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u062c\u0647\u062f \u0628\u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u064a\u0646\u0645\u0627 \u062a\u0638\u0644 \u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u0638\u0627\u0647\u0631\u064a\u0629 \u062b\u0627\u0628\u062a\u0629 \u062a\u0642\u0631\u064a\u0628\u0627\u064b\u060c \u0628\u0627\u0633\u062a\u062b\u0646\u0627\u0621 \u0627\u0644\u0641\u0642\u062f. \u0648\u0646\u062a\u064a\u062c\u0629 \u0644\u0630\u0644\u0643\u060c \u062a\u062d\u062a\u0627\u062c \u0645\u0648\u0635\u0644\u0627\u062a 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\u0648\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0642\u0628\u0648\u0644. \u0623\u062e\u064a\u0631\u0627\u064b\u060c \u0642\u0645 \u0628\u062a\u0633\u062c\u064a\u0644 \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641\u0627\u062a \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 \u0648\u0627\u062d\u062a\u0641\u0638 \u0628\u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629.<\/p><ol><li>\u0645\u0631\u0627\u062c\u0639\u0629 \u062a\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0645\u0644 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0644\u0640 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u0648\u062a\u0633\u062c\u064a\u0644 \u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/li><li>\u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u0636\u062e\u0645\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0648\u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629 \u0648\u062a\u0633\u062c\u064a\u0644 \u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/li><li>\u0645\u0631\u0627\u062c\u0639\u0629 \u0642\u064a\u0627\u0633\u0627\u062a \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0648\u0627\u0644\u0645\u0648\u0635\u0644\u0627\u062a \u0648\u062a\u062f\u0648\u064a\u0646 \u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/li><li>\u0645\u0631\u0627\u062c\u0639\u0629: \u0647\u0644 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u0643\u0628\u064a\u0631 \u0628\u0627\u0644\u0642\u062f\u0631 \u0627\u0644\u0643\u0627\u0641\u064a\u061f \u0648\u062a\u0633\u062c\u064a\u0644 \u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/li><\/ol><\/section><section class=\"lbaji-acceptance-records\"><h2>\u0633\u062c\u0644\u0627\u062a \u0627\u0644\u0642\u0628\u0648\u0644 \u0627\u0644\u0645\u0631\u0627\u062f \u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0628\u0647\u0627<\/h2><p>\u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0628\u0635\u062d\u064a\u0641\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629\u060c \u0648\u0627\u0644\u0631\u0633\u0648\u0645\u0627\u062a\u060c \u0648\u0642\u0627\u0626\u0645\u0629 \u0627\u0644\u0627\u0646\u062d\u0631\u0627\u0641\u0627\u062a\u060c \u0648\u0634\u0647\u0627\u062f\u0627\u062a \u0627\u0644\u0645\u0648\u0627\u062f \u0639\u0646\u062f \u0627\u0644\u0627\u0642\u062a\u0636\u0627\u0621\u060c \u0648\u062a\u0642\u0627\u0631\u064a\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0631\u0648\u062a\u064a\u0646\u064a\u0629 \u0648\u0627\u0644\u062e\u0627\u0635\u0629\u060c \u0648\u0625\u0639\u062f\u0627\u062f\u0627\u062a \u0627\u0644\u062d\u0645\u0627\u064a\u0629\u060c \u0648\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062a\u062c\u0631\u064a\u0628\u064a\u060c \u0648\u0627\u0644\u0635\u0648\u0631 \u0627\u0644\u0641\u0648\u062a\u0648\u063a\u0631\u0627\u0641\u064a\u0629\u060c \u0648\u062a\u0641\u0627\u0635\u064a\u0644 \u0644\u0648\u062d\u0629 \u0627\u0644\u0627\u0633\u0645 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629. \u062a\u0633\u062c\u064a\u0644 \u0638\u0631\u0648\u0641 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0628\u0627\u0644\u0625\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 \u0627\u0644\u0642\u064a\u0645\u060c \u0644\u0623\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062c\u0647\u0627\u0632 \u0648\u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629. \u062a\u0646\u0634\u0626 \u0647\u0630\u0647 \u0627\u0644\u0645\u0633\u062a\u0646\u062f\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645 \u0644\u0644\u062a\u062d\u0642\u064a\u0642 \u0641\u064a \u0627\u0644\u0625\u0646\u0630\u0627\u0631\u0627\u062a \u0627\u0644\u0644\u0627\u062d\u0642\u0629\u060c \u0623\u0648 \u062a\u063a\u064a\u064a\u0631\u0627\u062a \u0627\u0644\u0623\u062d\u0645\u0627\u0644\u060c \u0623\u0648 \u0627\u0644\u062a\u062f\u0647\u0648\u0631. \u0643\u0645\u0627 \u0623\u0646\u0647\u0627 \u062a\u0645\u0646\u0639 \u0637\u0644\u0628 \u0645\u0639\u062f\u0627\u062a \u0628\u062f\u064a\u0644\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0648\u0635\u0641 \u063a\u064a\u0631 \u0645\u0643\u062a\u0645\u0644 \u0628\u0639\u062f \u062a\u063a\u064a\u0631 \u0627\u0644\u0623\u0641\u0631\u0627\u062f \u0623\u0648 \u0627\u0644\u0645\u0648\u0631\u062f\u064a\u0646.<\/p><\/section><section class=\"lbaji-technical-references\"><h2>\u0627\u0644\u0645\u0631\u0627\u062c\u0639 \u0627\u0644\u0641\u0646\u064a\u0629 \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0627\u0644\u0625\u0636\u0627\u0641\u064a\u0629<\/h2><ul><li><a href=\"https:\/\/www.energy.gov\/cmei\/buildings\/distribution-transformers\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">\u0645\u0648\u0627\u0631\u062f \u0645\u062d\u0648\u0644\u0627\u062a \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0648\u0632\u0627\u0631\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0623\u0645\u0631\u064a\u0643\u064a\u0629<\/a><\/li><li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/588\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">\u0645\u062d\u0648\u0644\u0627\u062a \u0627\u0644\u0642\u062f\u0631\u0629 IEC 60076-1<\/a><\/li><li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">\u0627\u0644\u0631\u0645\u0648\u0632 \u0648\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0621 \u0627\u0644\u062a\u0627\u0628\u0639\u0629 \u0644\u0644\u062c\u0645\u0639\u064a\u0629 \u0627\u0644\u0648\u0637\u0646\u064a\u0629 \u0644\u0644\u0648\u0642\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062d\u0631\u0627\u0626\u0642 (NFPA)<\/a><\/li><\/ul><\/section>\n<h2>\u062e\u0627\u062a\u0645\u0629<\/h2><p>\u0644\u0627 \u064a\u0645\u0644\u0643 \u0645\u062d\u0648\u0644 \u0628\u0642\u0648\u0629 75 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u062a\u0635\u0646\u064a\u0641 \u0623\u0645\u0628\u064a\u0631 \u062b\u0627\u0628\u062a\u0627\u064b \u0648\u0627\u062d\u062f\u0627\u064b. \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u062a\u064a\u0627\u0631 \u0639\u0644\u0649 \u0627\u0644\u0637\u0648\u0631 \u0648\u0627\u0644\u062c\u0647\u062f: \u062a\u064a\u0627\u0631 \u0627\u0644\u0637\u0648\u0631 \u0627\u0644\u0623\u062d\u0627\u062f\u0649 \u0647\u0648 75,000 \u00f7 \u0627\u0644\u062c\u0647\u062f\u061b \u0648\u062a\u064a\u0627\u0631 \u0627\u0644\u062e\u0637 \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631 \u0647\u0648 75,000 \u00f7 (1.732 \u00d7 \u0627\u0644\u062c\u0647\u062f). \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 75 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u062a\u0633\u0627\u0648\u064a \u062a\u0642\u0631\u064a\u0628\u0627\u064b 90.2 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 480 \u0641\u0648\u0644\u062a \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631 \u0648 208.4 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f 208 \u0641\u0648\u0644\u062a \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631. \u0627\u0633\u062a\u062e\u062f\u0645 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0642\u0628\u0648\u0644 \u0627\u0644\u0645\u0648\u062b\u0642\u0629 \u0642\u0628\u0644 \u0627\u0644\u0634\u0631\u0627\u0621 \u0623\u0648 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0623\u0648 \u0627\u0644\u0635\u064a\u0627\u0646\u0629.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0645\u062d\u0648\u0644 \u0628\u0642\u062f\u0631\u0629 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u0644\u064a\u0633 \u0644\u0647 \u062a\u0635\u0646\u064a\u0641 \u0623\u0645\u0628\u064a\u0631 \u062b\u0627\u0628\u062a \u0648\u0627\u062d\u062f. \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u062a\u064a\u0627\u0631 \u0639\u0644\u0649 \u0627\u0644\u0637\u0648\u0631 \u0648\u0627\u0644\u062c\u0647\u062f: \u062a\u064a\u0627\u0631 \u0627\u0644\u0648\u062c\u0647 \u0627\u0644\u0623\u062d\u0627\u062f\u0649 \u0647\u0648 75,000 \u00f7 \u0627\u0644\u062c\u0647\u062f\u061b \u0648\u062a\u064a\u0627\u0631 \u0627\u0644\u062e\u0637 \u062b\u0644\u0627\u062b\u064a \u0627\u0644\u0623\u0637\u0648\u0627\u0631 \u0647\u0648 75,000 \u00f7 (1.732 \u00d7 \u0627\u0644\u062c\u0647\u062f). \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 75 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a \u0623\u0645\u0628\u064a\u0631 \u062a\u0633\u0627\u0648\u064a \u062d\u0648\u0627\u0644\u064a 90.2 \u0623\u0645\u0628\u064a\u0631 \u0639\u0646\u062f...<\/p>","protected":false},"author":6,"featured_media":2721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[52],"tags":[85,66,65],"class_list":["post-2722","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-transformers","tag-kva-calculations","tag-transformer-capacity","tag-transformer-sizing"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/posts\/2722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/comments?post=2722"}],"version-history":[{"count":2,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/posts\/2722\/revisions"}],"predecessor-version":[{"id":2807,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/posts\/2722\/revisions\/2807"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/media\/2721"}],"wp:attachment":[{"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/media?parent=2722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/categories?post=2722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lbajiele.com\/ar\/wp-json\/wp\/v2\/tags?post=2722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}