LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker

Name: LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker Suppliers
Brand: Shaanxi Huadian Electric Co., Ltd.
SKU: 188841905

Production Introduction Overview: LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker, which is an outdoor three-phase AC 50Hz high voltage electrical equipment, mainly used for the protection of transmission and transformation lines, and can also be used as a contact circuit breaker....

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Product Introduction

Production Introduction

Overview:

LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker, which is an outdoor three-phase AC 50Hz high voltage electrical equipment, mainly used for the protection of transmission and transformation lines, and can also be used as a contact circuit breaker.

Structure:

LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker with CT20 spring operation mechanism, using the principle of self-energy arc extinguishing, for a single fracture structure, the three poles of each circuit breaker are installed on a frame through the transmission mechanism to achieve three-phase mechanical linkage. Electronic control enables remote and in-place operation.

Advantage:

LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker adopts SF6 gas as the arc extinguishing medium, sulfur hexafluoride gas not only has good arc extinguishing performance, but also has very good electrical insulation performance. The gas is compressed by the compressor cylinder during the opening and breaking and is sprayed into the arc and the arc is extinguished and broken. The porcelain column type high-pressure AC sulfur hexafluoride circuit breaker has many advantages such as simple structure, good breaking performance, and the circuit breaker can smoothly break various abnormal short circuit operation balances.

1). Excellent breaking performance;

2). Long electrical life;

3). Reliable insulation properties;

4). Long mechanical life;

5). Operation, maintenance workload is small;

Common models:

LW9-72.5/630-20KA; LW9-72.5/1250-31.5KA;

LW9-72.5/1600-31.5KA; LW9-72.5/2000-40KA;LW9-72.5/3150-40KA

Specification

The main technical parameters of circuit breakers：

No.	Item	Unit	Data
1	Rated Voltage	kV	72.5
2	Rated Insulation(1min power frequency withstand voltage)	kV	160
3	Rated Insulation(Rated lightning impulse withstand voltage)	kV	350
4	Rated Frequency	Hz	50
5	Rated Current	A	1250 / 1600 / 2000 / 3150
6	Rated short-circuit breaking current	kA	25 / 31.5 / 40
7	Opening time	s	≤ 0.03
8	Breaking time	s	≤ 0.06
9	Closing time	s	≤ 0.15
10	Sulfur hexafluoride gas alarm pressure gas rated perssure	Mpa	0.50
11	Sulfur hexafluoride gas alarm pressurealarm pressure	Mpa	0.45
12	Water content of sulfur hexafluoride gas	Ppm(v/v)	150
13	Annual gas leakage rate	%	1%

Prodection details

Product outline and installation dimensions：

（Unit:mm）

LW9-72.5 Outdoor Sulfur Hexafluoride Circuit Breaker electric device

Company Profile

Shaanxi Huadian Electric Co., Ltd. is located in Baoji High-tech Development Zone, Shaanxi Province, China. It is a modern high-tech enterprise specializing in the production of vacuum circuit breakers integrating R&D, manufacturing and sales.

Shaanxi Huadian Electric Co., Ltd. provides customers with first-class products and services, creating value for customers and the country.

Shaanxi Huadian products have been widely used in power plants, metallurgy, petrochemicals, railways, mines, radio and television, urban construction and rural power grid reconstruction projects, and are well received by users for their high-quality products and services.

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