VACUUM CIRCUIT BREAKER VEP12 FOR RATED VOLTAGE OF 6, 10 KV

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CHETA LLC Production VACUUM CIRCUIT BREAKER VEP12 FOR RATED VOLTAGE OF 6, 10 KV
VACUUM CIRCUIT BREAKER VEP12 FOR RATED VOLTAGE OF 6, 10 KV Print

Description and purpose

Vacuum circuit breaker VEP12 is designed for installation in compartments of switchgears and unilateral maintenance assembled chamber with the middle location of the indoor installation switching compartment for 10 kV voltage class of three phase AC 50 Hz for circuits with insulated or grounded through arc reactor or resistor neutral. The overall and connecting dimensions of VCBs allow not only to install them in all types of compartments of switchgears and unilateral maintenance assembled chambers, but also to install them when replacing expired power circuit breakers (retrofits).

The overall and connecting dimensions of VCBs allow not only to install them in all types of compartments of switchgears and unilateral maintenance assembled chambers, but also to install them when replacing expired power circuit breakers (retrofits).

 

 

Distinctive features:

 

  • embedded poles and spring-motor drive;
  • possibility of manual close with unfed control circuits;
  • possibility to conduct a cycle OFF-ON-OFF in the absence of supply voltage on the motor drive;
  • during the spring charging process, VCB consumes energy evenly, with no surges;
  • designed for fixed and withdrawable versions;
  • modular design of the VCB drive, which implies separation on functional parts of the mechanical connections inside the VCB. If necessary, closing and opening modules can be replaced separately;
  • the repair time for mechanical part of VEP12 is less than 0.5 hours.

Environmental conditions

Parameter Value
Climatic design and accommodation category according to GOST 15150-69 U3
Installation height above sea level less than 1000 m
Operating ambient temperature range Relative humidity, % -25°C ... +40°C
Relative humidity, % less than 80% at a temperature of +25 °C
Atmosphere type according to GOST 15150 II
Environment non-explosive, does not contain conductive dust, aggressive gases and vapors in concentrations that destroy materials and insulation
Ambient temperature during storage of the packaged VCB -50°C ... +40°C
Resistance to seismic impacts on the MSK-64 scale 9 points

 

Technical parameters of VEP12

Parameter Value
Rated voltage, kV 10
Maximum operating voltage, kV 12

Main circuit insulation test voltage, kV

- one-minute, 50 Hz

- lightning pulse 1.2 / 50 ?s

 
42
75
Rated current, A 630, 1250, 1600, 2000, 2500, 3150, 4000*
Rated breaking current, kA 20, 25, 31.5, 40, 50

Fault withstand current

Rated short time withstand current, kA

Peak withstand current, kA

Flow time, s

 
20, 25, 31.5, 40, 50
51, 64, 81, 102, 128
3
Rated opening time, ms 25 ~ 40
Rated closing time, ms 35 ~ 70
Rated breaking time, ms 40~ 55
Contact closure time difference, ms, no more than 2
Mechanical endurance, cycles at rated current:  
– for VCB 630-4000* A, 20-31, 5 kA 30000
– for VCB 1250-4000* A, 40.50 kA 20000
Rated operation sequence  
- autoreclosing O-0.3s-CO-180s-CO
– autoreclosing O-0.3s-CO-15s-CO
Commutation life, operations:  

– At rated breaking current, «C»

- At rated breaking current, «CO»

50 (30 for 50 kA)

25

Service life before decommissioning, years, not less 30

* - 4000 A CB requires installation in a switchboard with forced ventilation

Type designation.pdf

 

 
Russian (CIS)English (United Kingdom)

 

Reference list

Here you may familiarize yourself with our reference list

 

GE product catalogue

CHETA, Llc is official distributor of GE Consumer & Industrial in Russia

GE Intelligent Platforms

Siemens automation

Rockwell Automation

Phoenix Contact

Rittal

Schneider Electric

Circutor

KPB Intra


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