VIB-24kv Indoor Vacuum Circuit Breaker with Embedded Poles and Modular Mechanism

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Shaanxi Longxiang Electrical Co., Ltd.

VIP   Audited Supplier 17 years
Profile Certified by SGS/BV
VIB-24/1250-31.5
High Voltage Circuit Breakers
Electric Type
High-Speed Circuit Breaker
Vacuum
Withdrawable & Fixed
MCCB
3
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
VDE, ISO9001-2000, CE, CB, CCC
24kv
50Hz
IEC62271:100
Free-Maintance
LONGXIANG
Non-Solid Wooden Case
IEC: M2-E2-C2
Baoji, Shaanxi China
85389000
Product Description
24kv Indoor Vacuum Circuit Breaker with Embedded Poles and Modular Mechanism

General Description
VIB-24 series of Indoor High Voltage Vacuum Circuit Breaker with embedded poles is three phase A.C.50Hz indoor power distribution equipment  with the rated voltage of 24kV.  It's used for protecting and controlling the electrical equipment in the fileds of industry & mining enterprise,
power plants and substation. 


The main conductive circuit of this type vacuum circuit breaker with spring mechanism is embedded pole, that can greatly improve the
reliability of insulation, mechanical and breaking performance and really realize the free-maintance and longer mechanical & electrical life.


This type Vacuum Circuit Breaker conforms to national standards and the stipulation of IEC standard.
The capability reaches grade of M2-E2-C2.

The products is used for many kinds of switchgear like KYN28-24(GZS1)and can be fixed installation.

Applying ambient conditions
1.Ambient temperature:-10ºC~+40ºC.
2.Ambient humidity:the average value of a day should be no more than 95%;the average value of a month should be no more than 90%.
3.Earthquake intensity:not exceed 8 degrees.
4.Water vapour pressure:the average value of a day should be no more than 2.2kPa;the average value of a month should be no more than 1.8kPa.
5.The height above sea level:≤1000m(besides the special requirements).
6.It should be installed in the place without fire,explosion,serious filth,chemical erosion and vibration.


Main technical specification
S.NNameUnitData
1Rated voltagekV24
2
 
Rated insulation levelRated power frequency withstand voltage 1minkV65
Rated lightning impulse withstand voltagekV125
3Rated currentA63012501600200025003150
4Rated frequencyHz50
5Rated short breaking current
Rated short time withstand current
kA202531.5

 
6Rated short circuit making current(peak)
Rated peak withstand current
kA506380

 
7Rated short-circuit durations4
8Clearance between open contactsmm13±1
9Overtravelmm3.5±0.5
10Contact bouncing duration at closing openingms≤2/≤3(2000-31.5 and above)
11Out of simultaneity of CO operation of three polesms≤2
12Opening timems20~50
13Closing timems30~70
14Average opening speedm/s1.1~1.6
15Average closing speedm/s0.5~1.0
16Rated operating sequence
 
O-0.3s-CO-180s-CO


Overall outline drawing




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