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Ningbo Ville Electric Co., Ltd.

Circuit Breaker, Circuit Breaker 12kv, Vacuum Circuit Breaker manufacturer / supplier in China, offering Sf6 Hv Outdoor Circuit Breaker 12kv, 15 Strand Billet Continuous Casting Machine CCM, Lvb (T) Series Oil Immersed Inverted Current Transformers and so on.

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Supplier Homepage Product High Voltage Circuit Breaker Sf6 Hv Outdoor Circuit Breaker 12kv

Sf6 Hv Outdoor Circuit Breaker 12kv

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Ningbo, China
Production Capacity: 50000 Sets/Year
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: LW3-12 I. II
  • Operation: Electric Type
  • Arc-extinguishing Medium: SF6
  • Structure: MCB
  • Certification: VDE, ISO9001-2000, CE, UL, CB, CCC
  • Transport Package: Wooden Case or as Per Requirement
  • Origin: Ningbo China
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Trademark: VILLE
  • Specification: IEC CE, ISO
  • HS Code: 8
Product Description
LW3-12 I. II SF6 HV outdoor circuit breaker is a new type product that SF6 is taken for insulating and arc extinguishing. The arc-chute consists of a breaker and an operative mechanism, using rotating arc principle. Compared with the 10KV series outdoor breakers, this kind of product has obvious advantages, such as a simple structure, the higher reliability of insulating and arc extinguishing, a lower operative power, and a higher rated parameter, a longer electrical service life, a long maintenance free duration, and so on.
This kind of product can be divided into two types: Type I and Type II. The main difference is that, type I is fitted with a kind of manual energy -storage mechanism operated by spring, mainly used on the pillar, and type II is equipped with motor-driven energy -storage mechanism operated by spring which not only can be operated by hand directly or be controlled remote, but also can do coincide automatically, mainly used in the mini-medium substation for protecting and controlling.
1Rated voltageKV12
2Rated insulating level (the pressure of SF6 in the breaker is 0.25Mpa, the temperature is 20 )Lightning impulse withstand voltage
(full wave)
Rated 1min power frequency withstand voltage42
The voltage withstand test under the condition of raining34
3The insulating level under zero pressure
(the pressure on the highest phase is 5min)
4Rated currentA400 630
5Rated short-circuit breaking currentKA6.3 8 12.5
6The breaking current under  zero pressure of tA400 630
7Rated short-circuit breaking timesTimes20
8Rated operative sequenceType I Off-180s-on/off-
180s- on/off
Type IIOff -0.5s- on/off -
180s- on/off
9Rated short-circuit breaking current (peak value)KA16 20 31.5
10Rated peak withstand current (peak value)KA16 20 31.5
11Rated short-time withstand timeS4
12Rated short-time withstand currentKA6.3 8 12.5
13Rated operating pressureM Pa0.35
14The lowest operating pressureM Pa0.25
15Annual leak rate&< =1
16Mechanical EnduranceTimes2000
17WeightType IKg122
Type II130
Sf6 Hv Outdoor Circuit Breaker 12kv
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