LW8A-40.5 Outdoor High Voltage SF6 Circuit Breaker With Good Quality

Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments,LW8A-40.5 type outdoor SF6 circuit breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system.

Product Details Company Profile

Description

Place of Origin: Zhejiang, China (Mainland)
Brand Name: AISO/OEM
Model Number: LW8A-40.5
Type: High Voltage, Outdoor
Poles Number: 3
Product: SF6 Circuit Breaker
Rated Voltage: 40.5kV
Rated current: 1600/2000A
Rated frequency: 50Hz
Mechanical life: 10000Times
Altitude: ≤2000m
Weight: About1000Kg
Standard: IEC
Customized: Accept special order

Application

Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments,LW8A-40.5 type outdoor SF6 circuit breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system. It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.

Standards

GB1984

GB/T28001-2011 idt OHSAS18001:2007

GB/T24001-2004 idt ISO14001:2004

Features

Excellent breaking performance, short burning arc time, long life;

Mechanical life of more than 3000 times;

Operation frequently, each can be installed 12 current transformers;

New type SF6 MKZ pointer type density meter, pressure gauge reading is not affected by temperature changes;

Environmental Condition

Ambient temperature:-30℃~+40℃

Altitude:≤3000m

Wind pressure:≤700Pa

Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value ≤1.8KPa

Air pollution level:Ⅲ

Earthquake intensity:≤8 degree

The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

Main technical data

No.	Item	Unit	Data
1	Rated voltage	KV	40.5
2	Rated current	A	2000
3	Rated frequency	HZ	50
5	Rated short circuit breaking current	KA	31.5
6	Rated short-circuit current (peak)	KA	50
7	Rated short-circuit withstand current	KA	20
10	Rated short circuit closing current(peak)	KA	50
13	Electrical life of rated short circuit breaking current	times	30
14	Rated short circuit duration	s	4
15	Rated line charging close current	A	31.5
16	Rated operation sequence		O-0.3s-CO-180s-CO
17	Split time	ms	≤60
18	Closing time	ms	≤100
19	Velocity of rigid composite	m/s	3.2
20	Velocity of rigidity	m/s	3.4
21	Mechanical life	times	6000
24	Quality of each circuit breaker	kg	1400