Products

10kv Vacuum Circuit Breaker

China 10kv Vacuum Circuit Breaker, Find details about China Vacuum Circuit Breaker, 11kv Vacuum Circuit Breaker from 10kv Vacuum Circuit Breaker

Poles Number
1
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000
Poles Number
1
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000
VHE-12 indoor high voltage vacuum circuit breaker (Insulating cylinder structure)
              
Overview

VHE-12 vacuum circuit breaker with 12KV rated voltage,Indoor distribution device of three-phase ac 50HZ, Is a new product that developed by our company independently.  We have the intellectual property rights, The product can be compatible with the VS1.VD4 and so on.  Available for industrial and mining enterprises,Power plant and substation in electric equipment protection and control,Especially suitable for the fields of free oil, less maintenance and frequent operation.  It can be configured in the centrally installed switchgear,Double switchgear,Fixed switchdaer for control and protection of the high voltage electrical equipment.  It meets the standard of GB1984-2003, DL/T403-1999, IEC56, 694 publication.  The main characteristics of the product are:
  • Circuit breaker operating mechanism and circuit breaker ontology integration design,The overall layout is reasonable, beautiful and concise;
  • Circuit breaker can defense all kinds of environmental impact because of its used vertical insulation sleeve,Therefore circuit breaker can be applied to all kinds of special environmental conditions;
  • Fixed and handcart types can satisfy different equipped requirements for cabinet and circuit breaker;
  Few maintenance,Usually the operating mechanism only need doing a bit of cleaning or lubrication.


The normal conditions
  1. Ambient temperature: max +40°C min -15ºC(conveyance under -30ºC is allowed);
  2. Altitude: ≤1000m;
  3. Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity:≤90%; daily average saturated vapor pressure: ≤2.2*10-3 MPa; monthly average value :≤1.8*10-3 MPa;
  4. Earthquake intensity: ≤8 degree;
  5. The installation site should be no explosion,severe vibration, chemical corrosion and serious pollution.

Main Technical Data

No.
Item
Unit
Value
1Rated voltageKV12
2
Rated insulation level
Rated lighting impulse withstand voltage (peak)		KV,75,80
1min
Short-time power frequency withstand voltage(1min)		KV,42,48
3
Rated short circuit breaking current		KA202531.540
4
Rated current		A630
1250		630 1250
1600 2000
2500 3150		1250 1600
2000 2500
3150 4000
5
Rated thermo stability current(valid)		KA202531.540
6
Rated dynamic stability current(peak)		KA506380100
7
Rated short-circuit making current(peak)		KA506380100
8
Rated operations of short-circuit breaking current interruption		 50(40KA30)
9(1min)
Power frequency withstand voltage of secondary circuit(1 min)		V2000
10
Rated operating sequence 		 -0.3S--180S-/-180S--180S-(40KA)
Opening-0.3S-closingopening-180S-closing opening/opening-180S-closing opening-180S-closing opening(40KA)
11Rated thermo stability timeS4
12
Rated breaking current(a capacitor/back to back capacitor)		A630/400   800/400(40KA)
13Mechanical life 30000
 
Note:When the rated current reached 4000A, You need enforce air cooling.
    Mechanical characteristics of circuit breaker assembly after adjustment

No.
Item
Unit
Value
1Contact distancemm10±1
2Contact over travelmm3.5±0.5
3Opening speedm/s1.0±0.2
4Closing speedm/s0.6±0.2
5
Contact bouncing duration at closing operation		ms≤2
6Distancemm210±1.5 / 275±1.5
7Three-pole simultaneityms≤2
8
Conductive circuit resistance  of each phases		μΩ≤60(630A),≤50(1250A)
≤35(1600-2000A),≤25(2500A)
9Closing timems35~70
10Opening timems15~50







 
 

You Might Also Like