Alliance Panels & Switchgears Pvt. Ltd.
   
 
 
 
 
 
  ......................................................
12kv Retrofitting VCB
Alliance Panels & Switchgears Pvt. Ltd.
 

 
Cost Effective Breakers For Switchgear Panel Manufacturer’s
Fully type tested at CPRI
Ex-Stock Availability.
Compact breakers suitabiity for 600 mm width Switchgear panels.
Suitable for Floor - Type, Cassette Type & RMU Type panels.
Suitable for retrofitting.
 

Salient Features of 12kv Vacuum Circuit Breaker

A Compact ,Light ,Weight Construction ,optimized to give minimum weight to KA ratio.
Superior mechanical endurance limit maintainence required only after 10,000 opertions.
 
A unique "U" shaped insulation barries housing for the Vaccum interrupters ,imparting maximum mechanical strength against electrodynamic forces & provides most effective phase to phase & phase to earth segregation.
A scrw type racking arrangement for easy insertion & withdrawl of the Circuit Braeker renders perffect contact pressure ,independend of operator's force.
A simple motor charged spring operating mechanism noted for its high performance relibility.
A versalite mechanism capable of operating Vacccum Interrrupters of any type.Hence,dependence on single source of Vaccum interrupters eliminated.
Trip free mechanism suitable for repeated auto re-closing duty.
Spring charging time of less than 10 seconds.
Totally enclosed construction for spring changing motor.
Easy visual check of contact erosion.
 
Operating Mechanism
 Type  Motor & Manually charged
 Charging Time of motorised  mechanism  Less than 10 Sec.
 Coil voltage*  24/30/48/110/220 V DC
 Trip / closed coil power  350 Watts
 Motor Operating voltage  230 V AC / DC
 Power required by charging motor  80 Watts
 Type of closing latch  Designed to close & latch
 Auxiliary switch  Up to 8 NO + 8 NC
 Mechanical Operating Counter  5 digit non resetting type
* Different voltage as per customer requirement.
 
GENERAL ARRANGEMENT
 
 
Sr. No.
Description
1
  Handles
2
  Charging Handle
3
  Counter
4
  On / off Indicator
5
  Spring Charging Indicator
6
  Close Button
Sr. No.
Description
7
  Trip Button
8
  Insulating Barrier
9
  Shutter injection Cam
10
  Vacuum Interrupter
11
  Stud Insulator Assly
12
  Contact Arms
Sr. No.
Description
13
  Lead Screw For Rack in & Rack Out
14
  Primary Disconnectors / Finger Jaw
15
  Guide Sq. Bar
16
  Cassette Drive Box
17
  Earthing Lug
18
  Hole for Bit Key
 
 
 
 
 
VCB Technical Data
Sr. No.
Description
1
  Vacuum Interrupter
2
  Insulating Barrier
3
  Stud Insulator Assly
4
  Contact Arms / Finger Jaws
5
  Handles
6
  Charging Handles
7
  On / Off Indicator
8
  Counter
9
  Trip Button
10
  Close Button
11
  Spring Charging Indicator
Type
ASIVB - 12
Operating Method   Manual / Motor Spring Charge Type
Rated Voltage
KV
12
No. of Poles
Nos
3
Frequency
Hz
50 / 60
Rated Current
Amp
630 / 1250 / 2000
Short circuit Current
KA
13.1 / 20 /25
Making Current
KAP
33 / 50 / 62.5
Duration of short time current
Sec.
3
Insulation Level Impulse Power Frequency rms
KVp
KV
75 / 95
28
Contact travel
mm
7 (+1, -1)
Opening Time
Cycles
Less than 2 cycles
Interrupting Time
Cycles
Less than 3 cycles
Closing Time
Cycles
Less than 3 cycles
Duty cycle
Cycles
0-0.3 sec. -CO-3 min-CO
Applicable Standard   IEC 62271-100, IS 13118
 
 
 
  copyright 2011-12, Alliance Panels & Switchgears Pvt. Ltd.