ZF27-1100 GIS
- Product Details
- Company Profile
● Brief Description ZF27-1100 (L)/Y6300-50 GIS, developed independently by Pinggao for controling, measuring, protecting and transforming the electric transmission line, consists of circuit breaker, current transformer, disconnector, earthing switch, main busbar, incoming and outgoing line bushing and local control cabinet, etc. With rated voltage of 1100kV and rated current of 6300A, this type of GIS has been adopted in Jindongnan Substation of the first ultra-high voltage a.c demonstration project of China, which represents the pinnacle of similar products in the world.
●Main Features
1 Voltage level is 1100kV.
2 High current carrying capacity with 8000A current of disconnector and busbar.
3 Excellent breaking capacity of 50kA breaking current.
●Technical Parameters
Specifications | Unit | Value | |
Rated voltage | kV | 1100 | |
Rated current | A | 6300 | |
Rated frequency | Hz | 50/60 | |
Rated short-time withstand current (r.m.s) | kA | 50 | |
Rated peak withstand current | kA | 135 | |
1min rated power frequency withstand voltage (r.m.s) | To earth & between pole | kV | 1100 |
Across isolating distance | kV | 1100(+635) | |
Rated lightning impulse withstand voltage (peak) | To earth & between pole | kV | 2400 |
Across isolating distance | kV | 2400(+900) | |
Rated SF6 gas pressure(20℃) | CB compartment | MPa | 0.65 |
Others | MPa | 0.45 | |
Rated SF6 annual leakage | % | ≤0.5 |