Active Member
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[China]
Address: 21/F, Building 1, No. 816,Jinghua Road, Hi-tech Zone,Ningbo, Zhejiang, P.R. China
Contact name:Tony ma
Ningbo Tian'an Jinghua Power Technology Co., Ltd. |
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ZFW-126/T2500-40 Gas SF6 Metal-clad Switchgear
Product introduction of ZFW-126/T2500-40 Gas SF6 Metal-clad Switchgear
It is composed by 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.
Characteristics of ZFW-126/T2500-40 Gas SF6 Metal-clad Switchgear
1. Good breaking performance, high reliability and security
2. Lower gas pressure, lighter weight, smaller footprint, longer lift
3. Block built, module design, flexible layout, convenient extension
4. Convenient installation and easy maintenance
5. Lower noise
Technical parameters of ZFW-126/T2500-40 Gas SF6 Metal-clad Switchgear
| S/N | Rated parameter | Parameter values | ||
| 1 | Rated voltage kV | 110/126 | ||
| 2 | 1 min power frequency withstand voltage (virtual value) kV | Phase-to-phase, to earth | 230 | |
| Isolating distance | 300 | |||
| 3 | Lightning impulse withstand voltage (virtual value) kV | Phase-to-phase, to earth | 550 | |
| Isolating distance | 650 | |||
| 4 | Rated frequency Hz | 50/60 | ||
| 5 | Rated current A | Main busbar | 2500 | |
| Branch busbar | 3150 | |||
| 6 | Rated short-time withstand current kA | 40 | ||
| 7 | Rated peak withstand current kA | 100 | ||
| 8 | Rated duration of short-circuit s | Main circuit | 4 | |
| Earth circuit | 3 | |||
| 9 | Rated pressure of SF6(20ºCgage pressure)MPa | Main circuit | 0.6 | |
| Earth circuit | 0.4 | |||
| 10 | Annual leakage rate of SF6 | ≤0.5% | ||
| 11 | CB | Rated short circuit breaking current (virtual value) kA | 40 | |
| Rated short circuit making current (peak value) kA | 100 | |||
| Rated short circuit breaking current direct component | ≥42% | |||
| Rated operating cycle | O-0.3s-CO-180s-CO | |||
| Without inspection operation time(no-load) (time) | ≥6000 | |||
| Full capacity breaking times (time) | ≥20 | |||
| Mechanical life | ≥10000 | |||
| 12 | Disconnector | Making busbar charging capacitance current capacity A | 1 | |
| Making magnetizing current capacity A | 6 | |||
| Making busbar transfer current/voltage A/V | 1600/30 | |||
| Mechanical life (time) | 6000 | |||
| 13 | Fast earth switch | Rated short circuit making current (peak value) kA | 100 | |
| Mechanical life (time) | 6000 | |||
