Outdoor SF6 circuit breaker 12kv HV

SF6 type outdoor high voltage hexafluoride circuit breaker (hereinafter referred to as "ⅡⅢ type circuit breaker") is a new type of outdoor high voltage electrical appliance with SF6 gas as an arc extinguishing and insulating medium. The arc extinguishing chamber adopts the principle of spin arc extinguishing, and the operating mechanism is divided into manual energy storage operating mechanism (type I). (Type II) energy storage spring operating mechanism, (type III) DC electromagnetic operating mechanism three, all kinds of operating mechanism and circuit breaker body perfect combination into a whole.

EMAIL

General:

SF6 gas has superior insulation and arc extinguishing performance,SF6 gas electrical appliances are currently good performance of electrical appliances, at home and abroad,live tankSF6 gas has become a recognized development direction.SF6 gas has superior insulation and arc extinguishing performance,SF6 gas electrical appliances are currently good performance of electrical appliances, at home and abroad,SF6 gas has become a recognized development direction

Service Environment

  • Ambient temperature: upper limit +40 degrees, lower limit -40 degrees

  • The altitude does not exceed 1000m

  • Wind pressure no more than 700Pa(wind speed no more than 35m/s)

  • The intensity of the earthquake does not exceed 8 degrees

  • There is no fire, explosion danger, serious pollution, chemical corrosion and violent vibration.

Key Feature

  • Three-level common box type, simple structure, compact layout; The power output is rotary, and the sealing effect is good.

  • The small movement mass in the body reduces the operation work and improves the mechanical life. The application of rotating arc technology improves the arc extinguishing efficiency and electrical life.

  • The independence of the body structure can be derived from products with different performance and installation methods.

  • Compared with vacuum and oil circuit breakers, it has significant advantages in structure, weight, safety, electric strength, electric life, maintenance and cost. According to the needs of users, special arrangement and configuration of different ratios of protection, measuring transformers

Technical Data


Name

Unit

Data

Rated Voltage

kV

12

Rated Insulation Level

 

Lightning Impulse Withstand Voltage(Full-wave Peak Value)

kV

75

Power Frequency Withstand Voltage(1 minute)

42

Rain Withstand Voltage Test

34

Reverse Phase impact Pressure

85

Insulation level under zero gauge pressure

Power Frequency Withstand Voltage(1 minute)

kV

30

Reverse Phase Withstand Voltage(1minute)

30

Maximum Phase Voltage (5min)

9

Rated Current


400630

Rated Short-Circuit Breaking Current(0.25MPa,200C time)

Times

1620

Outgoing phase grounding reclosing breaking current

Mpa

1417.4

Breaking current under zero gauge voltage

Mpa

400630

Rated Operating Sequence

Type


0-180s-C/0-180s-C/O

TypeⅡ Ⅲ

0-0.3s-C/0-180s-C/O

Rated Short-Circuit Closing Current(Peak Value)


4050

Rated Withstand Current (Peak Value)

4050

Rated Short-time Withstand Current

1620

Rated Short-Circuit Continuous Time

4

Rated winding charging breaking current

25

Rated line charging breaking current


16

Rigid closing speed

2.0±0.2

Rigid component speed

3.6±0.2

Opening distance of dynamic and static contacts


37±2

Total travel of the conductive rod


58±2

Conducting rod overtravel


22±2

Three-phase synchronism of opening and closing


2

Main circuit resistance of each phase


≤130

Rated Working Pressure


0.35(200C)

Minimum Working Pressure


0.25(200C)

Annual Gas Rate


0.05

Mechanical Stability Operation


10000

Water content of SF6 gas


150

Weight


150

Drawing

LW3-12.png


INQUIRY