| Place of Origin: | XIAN |
|---|---|
| Brand Name: | XG |
| Certification: | ISO,CCC |
| Model Number: | LW8... |
| Minimum Order Quantity: | 1 SET |
| Packaging Details: | WOODEN CASE |
| Delivery Time: | 7-15 DAYS |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 2000 SET |
| Model: | LW8……. | Type: | Indoor |
|---|---|---|---|
| Rated Voltage: | 7.2kV, 12kV, 17.5kV, 24kV, 36kV, 40.5kV | Rated Current: | 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A, |
| Frequency: | 50/60Hz | Poles Number: | 3 |
| Phase: | 3 Phase | Medium: | SF6 |
| High Light: | 252KV SF6 Circuit Breaker,Distribution Power SF6 Circuit Breaker,Indoor SF6 Circuit Breaker |
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126KV 252KV SF6 Circuit Breaker Outdoor Gang Operation For Distribution Power Usage
1.126KV 252KV SF6 Circuit Breaker
SF6 circuit breaker is universal range of applications for the electrical system with elevation not greater than 2000m,ambient temperature not lower than -30℃,dirtiness grade not high than IV, alternating current 50Hz and the maximum voltage 126kV.
It is used for cutting the rated current, malfunction current or switching the circuitry, to control and protect the electrical system ,and it can also be used for connecting with the circuit breaker.
The gas of the SF6 is employed as the arc-extinguishing medium and the dielectric material. The self-extinction technology and the new-type spring operating mechanism are introduced in the SF6 circuit breaker. Thus the circuit breaker has good qualities with long electrical life, low operation power, lower noise, high reliability, simple structure, small and long overhaul periods. It can fully replace the same type one.
2.Parameter of 126kv 252kv SF6 Circuit breaker
| No | Name | Unit | Value | ||
| 1 | Rated voltage | kV | 252 | ||
| 2 |
Rated power frequency withstand voltage (1min) |
To earth | 460 | ||
| Between interrupter | 460+146 | ||||
| 3 |
Rated thunder impulse withstand voltage |
To earth | 1050 | ||
| Between interrupter | 1050+206 | ||||
| 4 | Rated frequency | Hz | 50 | ||
| 5 | Rated current | A | 4000 | ||
| 6 | Amplitude factor | 1.3 | |||
| 7 | Rated short-circuit breaking current | kA | 50 | ||
| 8 | Rated short-circuit making current(peak) | kA | 125 | ||
| 9 | Rated current withstand current | kA | 50 | ||
| 10 | Rated peak value withstand value | kA | 125 | ||
| 11 | Rated short-circuit duration | s | 3 | ||
| 12 | Rated out-of-phase breaking current | kA | 12.5 | ||
| 13 | Breaking current of close-in fault | kA | 90%lk,75%lk | ||
| 14 | Rated line-charging breaking current | A | 200 | ||
| 15 | Operating sequence | O-0.3s-CO-180s-CO | |||
| 16 | Resistance other main circuit | μΩ | ≤55 | ||
| 17 | Rated gauge pressure of SF6(20℃) | Mpa | 0.6 | ||
| 18 | Minimum functional gauge pressure(20℃) | Mpa | 0.550.015/0.50.015 | ||
| 19 | Annual leakage rate of SF6 | ≤0.5% | |||
| 20 | Amount of water of SF6(V/V) | ppm | ≤150 | ||
| 21 | Mechanical life | times | 6000 | ||
| 22 | Electrical level of radio interference | μV | <500 | ||
| 23 | Creepage distance | To earth | mm | ≥8660 | |
| Between interrupter | ≥6900 | ||||
| 24 | Weight of the SF6 | kg | 24 | ||
| 25 | Weight of the circuit breaker | kg | 1500 | ||
3.Application statment
A. The altitude above sea level does not over 2,000 meters;
B. Surrounding air temperature: -40 ºC ~+40 ºC ;
C. The wind speed is not bigger than 34m/s;
D. The air filthy should be with in III degree
E. Installing places: Not flammable, the explosion hazard, chemistry corrode place;
F. Does not have the regular fierce vibration
4.Product drawing
5. Product qualification
7. FAQ
1. How to order the products?
Send the inquiry with detail item description or with Model number. If there is no packing demand .we take it as sea-way packing.
2. About lead time and shipping time?
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order.we can send you by air after received your agreement.
3．Life span of our XG brand?
Generally we promise two years quality guarantee, some products will be extended longer time for life span.
