It is composed of a circuit breaker, DS/ES, FES, current transformer, PT, lightning arrester, busbar, DSG or CSG etc. It adopts the technology of three phases in one box, three positions isolation earth and full aluminium alloy enclosure. The characteristic of ZFW-126/T2500-40 is flexible and convenient and can meet the various main wiring requirements of users.
ZF29 series SF6 gas insulated metal enclosed switchgear (GIS): It is a combination electrical product featuring a fully three-phase common box structure with a modular design. It meets various wiring methods and is suitable for rated voltages of 72.5kV. Suitable for switching, protection, and control of power lines in 126kV and 145kV power systems for measurement purposes.
ZHW-126(L)/T3150-40 SF6 Gas Insulated Combined Apparatus: Composed of Circuit Breaker, DES, CT and BSG. According to customer requirements, combinations of Fast Earthing Switch, Potential Transformer and Lightning Arrester can be conveniently arranged.
| No. | Parameter Details | Unit | Specification Limit |
|---|---|---|---|
| 1 | Installation site | - | Indoor or outdoor |
| 2 | Altitude | M | ≤1000 |
| 3 | Ambient temperature | ºC | -25 ~ +40 |
| 4 | Max daily temperature difference | K | 25 |
| 5 | Max solar radiation intensity | W/m² | 1000 |
| 6 | Relative humidity (Daily Average) | % | ≤95 |
| 6 | Relative humidity (Monthly Average) | % | ≤90 |
| 7 | Max wind speed | M/s | 34 |
| 8 | Earthquake intensity | G | ≤9 |