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Products Electrical & Grid Transformer Accessories
72.5-126kV FRP Capacitive Transformer Bushing (draw lead type)
Nominal voltage (kV)：66-100
Rated voltage (the highest voltage of the equipment) (kV)：72.5-126
Dry Frequency withstand voltage (kV/min)：155-255
Wet Frequency withstand voltage (kV/min)：140-230
Whole Wave Thunder impulse withstands voltage (kV)：325-550
Intercepted WaveThunder impulse withstands voltage (kV)：357.5-605
Maximum Dielectric dissipation factor： At 1.05Um, the lower limit should not be over 0.4%
Increment Dielectric dissipation factor： At 1.05Um, the variation to Um should not be over 0.1%
Test tap insulation level (kV/min)：3
Um Local discharge (pC): ≤10
1.05Um/√3 Local discharge (pC): ≤5
leakage test: 0.6MPa/20min without leakage
Thermal short-time current: 25 times the bushing rated current, the maximum is 100kA, and lasts 2S
Outdoor creepage extender: 50
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DESCRIPTION

Specification

Product Code BT502 BT503 BT506 BT507 BT508 BT515 BT517 BT518 BT601 BT602 BT603 BT604 BT606 BT607 BT608 BT615 BT617 BT618
Specification QXFBRGW-L-72.5/630-4 QXFBRGW-L-72.5/630-4 QXFBRGWD-L-72.5/630-4 QXFBRGWD-L-72.5/630-4 QXFBRGWD-L-72.5/630-4 QXFBRGWD-L-72.5/1250-4 QXFBRGWD-L-72.5/1250-4 QXFBRGWD-L-72.5/1600-4 QXFBRGW-126/630-4 QXFBRGW-L-126/630-4 QXFBRGW-L-126/630-4 QXFBRGW-L-126/630-4 QXFBRGWD-L-126/630-4 QXFBRGWD-L-126/630-4 QXFBRGWD-L-126/630-4 QXFBRGWD-L-126/1250-4 QXFBRGWD-L-126/1250-4 QXFBRGWD-L-126/1600-4
Total Length L 1815 1965 1685 1830 1980 1880 1880 1880 2255 2505 2655 2805 2270 2420 2570 2465 2565 2565
Air Wiring Teminal Hole Distance a1 40 40 40 40 40 50 50 50 40 40 40 40 40 40 40 50 50 50
Board Size a2*a3 80*80 80*80 80*80 80*80 80*80 100*100 100*100 100*100 80*80 80*80 80*80 80*80 80*80 80*80 80*80 100*100 100*100 100*100
Holes Number*Holes Diameter n1*Φd1 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ18 4*Φ18 4*Φ18 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ14 4*Φ18 4*Φ18 4*Φ18
Thickness δ1 12 12 12 12 12 16 16 16 12 12 12 12 12 12 12 14 14 14
Outdoor Creepage Extender Insulation Clearance L1 700 700 700 700 700 700 700 700 1150 1150 1150 1150 1150 1150 1150 1150 1250 1250
Max. Creepage Extender Out Diameter ΦD2 290 290 290 290 290 290 290 290 290 290 290 290 290 290 290 290 290 290
Mounting Flage Length L4 120 120 120 120 120 120 120 120 150 150 150 150 150 150 150 150 150 150
Hole Center Distance ΦD3 280 280 280 280 280 280 280 280 350 350 350 350 350 350 350 350 350 350
Hole Diameter ΦD6 330 330 330 330 330 330 330 330 400 400 400 400 400 400 400 400 400 400
Holes Number*Holes Diameter n2*d2 6*Φ18 6*Φ18 6*Φ18 6*Φ18 6*Φ18 6*Φ18 6*Φ18 6*Φ18 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24 6*Φ24
Vent Hole Position L5 90 90 90 90 90 90 90 90 105 105 105 105 105 105 105 105 105 105
Thickness δ2 18 18 18 18 18 18 18 18 20 20 20 20 20 20 20 20 20 20
Oil-end Core Total Length L2 710 860 575 725 875 725 725 725 670 920 1070 1220 685 835 985 835 835 835
Earth Length L3 250 400 250 400 550 400 400 400 0 250 400 550 250 400 550 400 400 400
Core Diameter ΦD4 120 120 120 120 120 120 135 135 150 150 150 150 150 150 150 150 170 170
Upper Equalizing Height H 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60
Diameter ΦX 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125
General’s Socket Diameter ΦD1 139 139 139 139 139 139 139 139 139 139 139 139 139 139 139 139 155 155
Pipe Diameter ΦD5 40 40 40 40 40 40 60 60 40 40 40 40 40 40 40 40 60 60
Lead Connector ΦD7 28 28 28 28 28 32 35 46 28 28 28 28 28 28 28 32 35 46
Cable Entry Length L6 1580 1730 1445 1595 1745 1595 1595 1595 2020 2070 2420 2570 2035 2185 2335 2185 2285 2285
Weight (kg) 60 65 55 60 70 75 85 85 105 110 115 120 100 105 110 115 120 120

 

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Hot Tags: 72.5-126kV FRP Capacitive Transformer Bushing (draw lead type), Bushing, Thailand, manufacturers, ISO factory, wholesale, KEMA, high quantity, best, price, low to high voltage

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