72.5-252kV Dry R.I.F./R.I.P Oil/Oil Bushing
- Dimension-table 1
- Dimension-table 2
- Electrical data
Dimension -table 1 |
| YRG 72.5/630-1250 | YRG
72.5/1600 | YRG7
2.5/2000-2500 | YRG
126/630-1250 | YRG
126/1600 | YRG
126/2000-2500 |
| Total length | L | 1090 | 1280 | 1320 | 1380 | 1760 | 1800 |
| Oi side | L1 | 300 | 270 | 270 | 400 | 400 | 400 |
| L3 | 430 | 430 | 450 | 570 | 560 | 580 |
| D | 120 | 120 | 120 | 150 | 150 | 150 |
| Transformer side | L3 | 300 | 460 | 460 | 440 | 800 | 800 |
| L4 | 430 | 620 | 640 | 570 | 960 | 980 |
| L5 | 500 | 690 | 710 | 640 | 1030 | 1050 |
| E | 0 | 200 | 200 | 0 | 400 | 400 |
| D | 120 | 120 | 120 | 150 | 150 | 150 |
| Flange side | L6 | 90 | 90 | 90 | 100 | 100 | 100 |
| L7 | 75 | 75 | 75 | 90 | 90 | 90 |
| D1 | 250 | 250 | 250 | 290 | 290 | 290 |
| D2 | 290 | 290 | 290 | 335 | 335 | 335 |
| n×d | 8×16 | 8×16 | 8×16 | 12×20 | 12×20 | 12×20 |
| a | 22.5 | 22.5 | 22.5 | 15 | 15 | 15 |
| Equalizing ball | D3 | 220 | 240 | 260 | 220 | 240 | 260 |
| D4 | 140 | 160 | 180 | 140 | 160 | 180 |
| Z | 200 | 230 | 250 | 200 | 230 | 250 |
| Terminal blocks | a | 65 | 90 | 90 | 65 | 90 | 90 |
| b | 40 | 65 | 80 | 40 | 65 | 80 |
| a1 | 15 | 20 | 20 | 15 | 20 | 20 |
| a2 | 30 | 45 | 45 | 30 | 45 | 45 |
| a3 | / | / | 40 | / | / | 40 |
| n1×d1 | 2×14 | 2×14 | 4×14 | 2×14 | 2×14 | 4×14 |
| Casing weight | kg | 36 | 43 | 44 | 51 | 62 | 63 |
Dimension -table 2 |
| YRG
145/630-1250 | YRG
145/1600 | YRG
145/2000-2500 | YRG
252/630-1250 | YRG
252/1600 | YRG
252/2000-2500 |
| Total length | L | 1540 | 1920 | 1960 | 2290 | 2560 | 2560 |
| Oi side | L1 | 520 | 480 | 480 | 800 | 750 | 750 |
| L3 | 650 | 640 | 660 | 930 | 910 | 930 |
| D | 168 | 168 | 168 | 280 | 280 | 280 |
| Transformer side | L3 | 520 | 880 | 880 | 880 | 1160 | 1160 |
| L4 | 650 | 1040 | 1060 | 1010 | 1320 | 1340 |
| L5 | 720 | 1110 | 1130 | 1110 | 1410 | 1430 |
| E | 0 | 400 | 400 | 100 | 450 | 450 |
| D | 168 | 168 | 168 | 280 | 280 | 280 |
| Flange side | L6 | 100 | 100 | 100 | 150 | 150 | 150 |
| L7 | 100 | 100 | 100 | 155 | 155 | 155 |
| D1 | 290 | 290 | 290 | 500 | 500 | 500 |
| D2 | 335 | 335 | 335 | 550 | 550 | 550 |
| n×d | 12×20 | 12×20 | 12×20 | 12×24 | 12×24 | 12×24 |
| a | 15 | 15 | 15 | 15 | 15 | 15 |
| Equalizing ball | D3 | 220 | 240 | 260 | 220 | 260 | 260 |
| D4 | 140 | 160 | 180 | 160 | 180 | 180 |
| Z | 200 | 230 | 250 | 230 | 250 | 250 |
| Terminal blocks | a | 65 | 90 | 90 | 65 | 90 | 90 |
| b | 40 | 65 | 80 | 40 | 65 | 80 |
| a1 | 15 | 20 | 20 | 15 | 20 | 20 |
| a2 | 30 | 45 | 45 | 30 | 45 | 45 |
| a3 | / | / | 40 | / | / | 40 |
| n1×d1 | 2×14 | 2×14 | 4×14 | 2×14 | 4×14 | 4×14 |
| Casing weight | kg | 73 | 85 | 87 | 205 | 245 | 250 |
| Technical standards | GB/T 4109-2008 IEC 60137 Ed.6.0 |
| Rated voltage | 72.5kV | 126kV | 145kV | 252kV |
| Rated current | 630-2500A |
| 1min power frequency dry(wet) voltage withstand | 155kV | 255kV | 275kV | 550kV |
| Full-wave impulse withstand voltage of lighting | 325kV | 550kV | 650kV | 1050kV |
| Operation impulse withstand voltage | 850kV |
| Under 1.05 times of maximum phase voltage tan δ | ≤0.004 |
| Partial discharge under the rated voltage | ≤10pC |
| Bending resistant test load | 2000N | 3150N | 3150N | 4000N |
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Transformer Bushing