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| Main properties | |||||||
| electric properties | |||||||
| System nominal voltage Un(Kv) | 35 | 66 | 110 | 132 | 150 | 220 | |
| Rated voltage Ur(Kv) | 40.5 | 72.5 | 126 | 145 | 170 | 252 | |
| 60s power frequency withstand voltage: | Dry kv | 95 | 147 | 230 | 275 | 325 | 460 |
| Wet Kv | 80 | 140 | 230 | 275 | 325 | 460 | |
| Lightning impulse withstand voltage chopped wave | Full wave Kv(peak) | 200 | 325 | 550 | 650 | 750 | 1050 |
| Kv(peak) | 375 | 635 | 750 | 865 | 1210 | ||
| Operating impulse withstand voltage(dry or wet) | 850 | ||||||
| dielectric dissipation factor tanδ | (20ºC temperature)Max. | Ur:0.004 | |||||
| increment | 1.05Ur/√3-Ur:0.0005 | ||||||
| Ur Partial discharge under voltage | ≤5pC | ||||||
| 1.5Ur Partial discharge under voltage | ≤10pC | ||||||
| Bending testing load | ||||
| Rated voltage Ur(Kv) | Bending testing load(N) | |||
| Rated current Ir(A) | ||||
| ≤800 | 800-1600 | 1600-2500 | ≥3150 | |
| ≤52 | 1250 | 2000 | 2000 | 2500 |
| 72.5 | 1250 | 1250 | 4000 | 4000 |
| 126-170 | 3150 | 4000 | 4000 | 4000 |
| 252 | 4000 | 5000 | 5000 | 5000 |
| other properties | ||||
| Item# | Testing | performance index | ||
| 1 | The bushing can withstand the gauge pressure of the sealing test at 0.2MPa | no leakage | ||
| 2 | interior tranformer oil | Pressure value(Kv) | ≥55 | |
| Dielectric loss factor tanδ(90ºC) | ≤0.004 | |||
| Mico water(μg/g) | ≤10 | |||
| Chromatography | Acetylene(μL/L) | 0 | ||
| Hydrogen(μL/L) | ≤30 | |||
| Total hydrocarbons(μL/L) | ≤9 | |||
| 3 | Measurement of Dielectric Loss Factor of Terminal to earth under 2kV voltage | ≤0.02 | ||
| Type designation | ||||||||
| BRDLW- (rated voltage:kV)/ (rated current:A)- (Antifouling grade) | ||||||||
| BR-OIP Condenser transformer bushing,OIP Condenser wall bushing represent as CR | ||||||||
| D-Short tail bushing,if no "D" it should be Medium-short tail bushing | ||||||||
| L:can install CT | ||||||||
| W:Antifouling type,3 means creepage distance is 25mm/kV,4 means creepage distance is 31mm/Kv |
Technical parameters:
| 126kV/1250A OIP Condenser transformer bushing(draw lead) | ||||||||||||||||||||||
| Code | Type | Rated voltage Kv | Rated current A | Main Dimensions(mm) | Creepage distance | MASS KG | ||||||||||||||||
| L | L1 | L2 | L3 | L4 | L5 | D1 | D2 | D3 | D | d1 | d2 | d3 | d4 | A | Z | X | ||||||
| BR5234A | BRDLW-126/1250-3 | 126 | 1250 | 2580 | 2285 | 1100 | 840 | 400 | 40 | 200 | 180 | 400 | 450 | 36 | 48 | 24 | 18 | 50 | 90 | 140 | 3150 | 170 |
| BR5244A | BRDLW-126/1250-4 | 126 | 1250 | 2730 | 2435 | 1250 | 840 | 400 | 40 | 200 | 180 | 400 | 450 | 36 | 48 | 24 | 18 | 50 | 90 | 140 | 3906 | 191 |
| BR5235A | BRDLW-126/1250-3 | 126 | 1250 | 2730 | 2435 | 1100 | 990 | 550 | 40 | 200 | 180 | 400 | 450 | 36 | 48 | 24 | 18 | 50 | 90 | 140 | 3150 | 185 |
| BR5245A | BRDLW-126/1250-4 | 126 | 1250 | 2880 | 2585 | 1250 | 990 | 550 | 40 | 200 | 180 | 400 | 450 | 36 | 48 | 24 | 18 | 50 | 90 | 140 | 3906 | 205 |
| BR5243A | BRDLW-126/1250-3 | 126 | 1250 | 2630 | 2335 | 1250 | 740 | 300 | 40 | 200 | 180 | 400 | 450 | 36 | 48 | 24 | 18 | 50 | 90 | 140 | 3906 | 188 |
Other HV bushing reference:
Package reference:
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