Oil-Oil condenser transformer bushing is mainly used as current carrier for oil immersed power transformer and rectifier transformer, connecting cable through transition conservator as an insulation as well.
Table 1 Electrical and Technical data
Nominal system voltage kV | 35 | 66 | 110 | 132 | 220 | ||||
Rated voltage kV | 40.5 | 72.5 | 126 | 145 | 252 | ||||
Max. phase operation voltage kV | 23.5 | 42 | 73 | 84 | 146 | ||||
60s power frequency withstand voltage kV(r.m.s) | 95 | 165 | 255 | 305 | 505 | ||||
Lighting impulse Withstand Voltage | Full wave kV(peak) | 200 | 325 | 550 | 650 | 1050 | |||
Chopped wave kV(peak) | - | - | 635 | 750 | 1210 | ||||
Bending load | Rated current A | 630 | 1250 | 630 | 1250 | 630 | 1250 | 630 | 1250 |
Bending load N | 1000 | 1250 | 2000 | 2000 | 4000 | ||||
Designation:
Design feature: BRQ oil-oil condenser transformer bushing, 1,2,3,Serial No. in designation
Structure: L CT is available,1,2,3means different length for CT installing
Operation Condition:
Ambient condition: 40~ +40 (DB45)
Mounting angle: Vertically, Horizontal(While horizontal mounting, the inner oil chamber is connected with transformer body)
252kV Oil-oil OIP Transformer bushing