LW49-252kV/3150-50 SF6 Dead Tank Circuit Breaker
Product Details:
| Type | SF6 |
|---|---|
| Poles Number | 3 |
| Place of Origin | Beijing, China |
| Brand Name | Huadong |
| Model Number | SF6 Dead Tank Circuit Breaker |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Set/Sets |
|---|---|
| Packaging Details: | container |
| Delivery Time: | 40 days |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 100000 Set/Sets per Year |
Detailed Product Description
In order to meet the demands of power market in our country, basing on summarizing the experience of manufacturing and operating same kind product home and abroad, integrating advanced design concept, LW-252/3150-50 SF6 dead tank circuit breaker is the new product that Beijing Huadong Electric Co.,Ltd design and developed itself.
Arc-extinguishing chamber of this product applies advanced self pressure extinguishing principle in the world, thus decrease active power;working with the imported HMB-4 hydraulic spring actuator, realizing the miniaturization of shape and structure.
Main technical parameters
Item | parameter | ||
Rated voltage kV | 252 | ||
Rated frequency Hz | 50 | ||
Rated current A | 3150 | ||
Rated short-circuit breaking current kA | 50 | ||
Rated short-circuit makeup current (peak) kA | 125 | ||
Rated short-time withstand current kA | 50 | ||
Rated short-circuit duration S | 2, (3) | ||
Rated peak withstand current kA | 125 | ||
Near-field fault breaking current L75 L90 kA | 37.5/45 | ||
Rated phase-out makeup and breaking current kA | 12.5 | ||
Rated circuit charge breaking current A | 160 | ||
insulation level | 1min rated power-frequency withstand voltage kV (virtual value) | over ground | 460 |
between fracture | 395+145 | ||
Rated lightning impulse withstand voltage(1.2/50µs) kV (peak) | over ground | 1050 | |
between fracture | 950+206 | ||
Rated pull in terminal N | level vertical | 1500 | |
level horizontal | 1000 | ||
vertical direction | 1250 | ||
Creepage distance mm | 6300, 7812 | ||
Rated operation sequence | O-0.3s-CO-180s-CO | ||
Gas rated pressure of SF6 (20) MPa | 0.6 | ||
Leak rate of SF6 per year ≤ % | 1 | ||
Moisture content of SF6 gas ≤ µ L/L | 150 | ||
Continuous breaking times of rated short-circuit breaking current times | 20 | ||
Mechanical operation times times | 3000 | ||
Break-brake time ms | 18~25 | ||
Close-brake time ms | 80~100 | ||
Break and close time ≤ ms | 0.3 | ||
Close and break time ≤ ms | 60 | ||
Asynchronism of anode-to-cathode break brake ≤ ms | 3 | ||
Asynchronism of anode-to-cathode close brake ≤ ms | 5 | ||
Monopole gas weight of SF6 kg | 46 | ||
LW49-252kV/3150-50 SF6 Dead Tank Circuit Breaker
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Company Info
Beijing Huadong Electric Co., Ltd.
[China]
[Verified Member]
Online Postings: Products
Business Type:Manufacturer, Trading Company, Distributor/Wholesaler
City: Beijing
Province/State: Beijing
Country/Region : China