China Pole Mouted 24kv 50Hz Gas Insulated Load Break Switch

General

LW3F type pole-install load switch was used in 12kV,24kV,33kV rated voltage, rated current 400/630A; 50/60HZ with the load current; over load current of power line open circuit and opening and closing electric systems.The switch can equiped with a conttoller with most advanced technical parameter.

LW3F-A type LW3F is manaully LBS for choice.
LW3F-M type LW3F is a intelligent type LBS for choice. It can automatically disconnect when the distribution line was break down. It could operated by handle; Implementt electro motion and distant. The electric controller was installed in stainless steel cabinet. So it could use in any conditions.

Service environment
1.Air temperature:Maximum temperature: +40ºC; Minimum temperature:-20ºC
2.Humidity:Monthly average humidity 95%; Daily average humidity 90% .
3.Altitude above sea level:Maximum installation altitude: 2500m.
4.Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5.No frequent violent shake
Technical data

No
Item
Unit
Data
1
Rated voltage
kV
12/20/33
2
Rated current
Hz
50/60
3
Rated insulation level
(with SF6 gas 0.07Mpa)
lightning impulse voltage
kV
75/125/170
Power frequency impulse voltage
kV
42/50/70
5
Rated current
A
630
6Rated open circuit load current(0.07Mpa//20ºC/h)
A
630
7
Open circuit current under 0 pressure
A
630
8
Rate peak value withstand current
kA
50
9
Rated short-time closing current
kA
50
10
Rated short-time withstand current
kA/s
20/1
11
Rated electric cable charge open circuit current
A
25
12
Rated wire charge open circuit current
A
16
13
Rated closed loop open circuit current
A
630
14
Excitation current
A
21
15
Rated current open circuit times
≥400 times
16
Rated working pressure
MPa
0.07
17
Each operating voltage and resistance
μΩ
≤150
18
Gas relative leakage rate
year
≤1%
19
SF6 gas moisture content
Leave factory relative figure
ppm
≤150
Switch working figure
ppm
≤300
20
Machine stable operation
times
6000
21
Rated operating voltage and assistant loop rated voltage
V
DC220;110
AC 220;110
22
Weight
M type
kg
115
A type
135

Certification
Packing & Delivery
about us
Zhejiang Farady Powertech Co.,Ltd


Http:// www.farady.com.cn