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Outdoor sulfur hexafluoride circuit breaker LW3-12
Outdoor sulfur hexafluoride circuit breaker LW3-12
Outdoor sulfur hexafluoride circuit breaker LW3-12

>Outdoor sulfur hexafluoride circuit breaker LW3-12

Categories
High Voltage Vacuum Circuit Breaker
MOQ
5
Brand
Johsun
FOB port
Shanghai,Ningbo
Terms of Payment
Western Union,T/T,Paypal
Deliverytime
15 working days

Description

LW3-12, LW3-12 g I II II series outdoor high-pressure sulfur hexafluoride circuit breaker as sulfur hexafluoride gas arcing and a new type of outdoor high voltage electrical insulating medium. Operating mechanism ( I type) hand machine spring operation mechanism. ( II type) electromotor spring operating mechanism, ( Ill type) DC electromagnetic operating mechanism of three, all kinds of operation mechanism and circuit breaker ontology perfectly combined into a whole. Compared with other 10KV class outdoor circuit breakers, this product has obvious advantages such as simple structure, excellent arc extinguishing and insulation performance, small operation power, high rated parameters, long electrical life and long non-maintenance cycle. The use of this product can not only reduce the floor area. Reduce the project cost and eliminate the fire hazard, and can greatly improve the reliability of the power system. 

The circuit breaker has all the functions of the basic circuit breaker, and the coincidence controller or section controller is used to constitute the smart circuit breaker. Cooperate with PT and reclosing controller (subsection controller), it has many functions such as closing on current control, overcurrent protection, short-circuit quick-break three-section compound protection and 1-3 reclosing, small current grounding protection, wired remote control and wireless remote control under bar, and the controller parameters can be set continuously. It is an ideal choice for substation, off-site scatter switch and simple metering switch. 

 

Main technical parameters

Item

Unit

Data

Rated voltage

KV

10

Maximum operating voltage

KV

12

Rated insulation level

(when 0.25mpa, 20°C)

Lightning shock pressure withstand full wave

KV

75

Withstand voltage of 1 min power frequency

KV

42

Rain withstand test

KV

34

Reverse impact resistance

KV

85

Insulation level under zero gauge pressure

Withstand voltage of 1 min power frequency

KV

30

 

 Anti-phase pressure resistance of 1 min

KV

30

 

5min maximum phase voltage

KV

9

Rated current

A

400,630

Rated short circuit breaking current

KA

6.3   8  12.5

Out-of-phase earth rec losing switching current

KA

5.5  7.1  10.9

Open current under zero gauge pressure

A

400  630

Rated operating sequence

 

0-0.3s-C0-180s-CO

Rated closing current (peak)

KA

16  20  31.5

Rated dynamic stability current (peak)

KA

16  20  31.5

Rated thermal stability current

KA

6.3  8  12.5

Stable heat stable time

s

4

Just close speed

m/s

2.6±0.2

Just points speed

m/s

2.6±0.2

Proper closing time II Type Ill Type

s

≤0.06

Proper closing time

I Type

s

≤0.06

 

II Type Ill Type

s

≤0.04

Rated working pressure

Mpa

0.35 (20°C)

Minimum working pressure

Mpa

0.25 (2°C)

In a flat rate

%

<0.01

Mechanical stability (continuous integration) operation

Times

6000

Weight

I Type

Kg

122

 

II Type

Kg

30

 

Ill Type

Kg

132

SF6 gas moisture content

PPM

≤150

 

Outline and mounting dimensions

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