Product catalog

Transformer high-voltage bushings with voltage 330 kV

Transformer high-voltage bushings with a voltage of 330 kV with RIP insulation are available with a porcelain insulator (ETFt series) and with a polymer insulator (SETFt series) in accordance with the international standard IEC 60137.

RIP-insulated transformer bushings ETFt/SETFt series    
Technical specifications U measurement 362-A 362-B
Highest operating voltage, Um kV 362 362
Highest operating phase voltage kV 210 210
Partial discharge level pCL < 5 < 5
Power frequency test voltage 50 Hz, 1 min kV 560 560
Full wave lightning impulse test voltage 1.2/50 µs kV 1175 1175
Switching impulse test voltage 250/2500 µs kV 950 950
Typical test voltages      
Full wave lightning impulse test voltage 1.2/50 µs: negative polarity kV 1293 1293
Test voltage of lightning impulse of sheared wave: negative polarity kV 1422 1422
Switching pulse test voltage 250/2500 µs in dry condition: negative polarity kV 1045 1045
Maximum operating current: continuous cable connection, Imax A 800 1250
Maximum operating current: split current-carrying core, Imax A 1250 2000
Minimum arc path length, SW mm 3250 3250
Creepage distance, min. mm 11764 11764
Leak rate l/s 3.6 3.6
Test cantilever load N 4000 5000
Specific creepage distance mm/kV 32.5 32.5
Dimensions      
D1 mm 230 230
D2 mm 150 150
D3 mm 400 400
D4 mm 450 450
D5 mm 290 290
D6 mm 368 368
L5 mm 95 95
d1 mm 50 69
d2 mm - -
l1 mm - -
s mm 20 20
i mm 20 20
z   12 12
a ° thirty thirty
Contact terminal dimensions d3 x L4 mm mm ≤ 1250 A = Ø 30 x 90; ≤ 1600 A = Ø 42 x 135; ≤ 2500 A = Ø 48 x 135
Size for TT installation      
E mm 0 0
L1 mm 690 690
L2 mm 3670 3670
L3 mm 185 185
Total length, L mm 4360 4360
Size for TT installation      
E mm 300 300
L1 mm 990 990
Total length, L mm 4660 4660
Size for TT installation      
E mm 600 600
L1 mm 1290 1290
Total length, L mm 4960 4960

Transformer high-voltage bushings with a voltage of 330 kV with RIP insulation are available with a porcelain insulator (ETFt series) and with a polymer insulator (SETFt series) in accordance with the international standard IEC 60137.

RIP-insulated transformer bushings ETFt/SETFt series    
Technical specifications U measurement 362-A 362-B
Highest operating voltage, Um kV 362 362
Highest operating phase voltage kV 210 210
Partial discharge level pCL < 5 < 5
Power frequency test voltage 50 Hz, 1 min kV 560 560
Full wave lightning impulse test voltage 1.2/50 µs kV 1175 1175
Switching impulse test voltage 250/2500 µs kV 950 950
Typical test voltages      
Full wave lightning impulse test voltage 1.2/50 µs: negative polarity kV 1293 1293
Test voltage of lightning impulse of sheared wave: negative polarity kV 1422 1422
Switching pulse test voltage 250/2500 µs in dry condition: negative polarity kV 1045 1045
Maximum operating current: continuous cable connection, Imax A 800 1250
Maximum operating current: split current-carrying core, Imax A 1250 2000
Minimum arc path length, SW mm 3250 3250
Creepage distance, min. mm 11764 11764
Leak rate l/s 3.6 3.6
Test cantilever load N 4000 5000
Specific creepage distance mm/kV 32.5 32.5
Dimensions      
D1 mm 230 230
D2 mm 150 150
D3 mm 400 400
D4 mm 450 450
D5 mm 290 290
D6 mm 368 368
L5 mm 95 95
d1 mm 50 69
d2 mm - -
l1 mm - -
s mm 20 20
i mm 20 20
z   12 12
a ° thirty thirty
Contact terminal dimensions d3 x L4 mm mm ≤ 1250 A = Ø 30 x 90; ≤ 1600 A = Ø 42 x 135; ≤ 2500 A = Ø 48 x 135
Size for TT installation      
E mm 0 0
L1 mm 690 690
L2 mm 3670 3670
L3 mm 185 185
Total length, L mm 4360 4360
Size for TT installation      
E mm 300 300
L1 mm 990 990
Total length, L mm 4660 4660
Size for TT installation      
E mm 600 600
L1 mm 1290 1290
Total length, L mm 4960 4960