Alliance Panels & Switchgears Pvt. Ltd.
   
 
 
 
 
 
  ......................................................
12kv Retrofitting VCB
Alliance Panels & Switchgears Pvt. Ltd.
 
( Consist of Drwaout VCB, Circuit Breaker Compartment, Epoxy Bushing with Main Contact , Shutter Lifting Arrangement & All Interlocks )
Alliance Panels & Switchgears Pvt. Ltd.
 

Cost Effective & Time Saving Solution For Switchgear Panel Manufacturers

Fully type tested at CPRI.
Ex - Stock Availability.
Compact moduler design suitable for 600 mm width of panel.
Simple in construction ,easy to operate.
Suitable for close door application i.e. when the front door is closed all manual operations like ON,OFF,Manual Spring Charging ,rack -in & rack-out can be carried out .
Robust & internal arc proof design.
 

Salient Features Of Vaccum Circuit Breaker Modules

IP 4x degree of protection externally.
Foolproof mechanical interlock to prevent rack-in and rack-out of closed breaker.
Explosion flaps on top of modules for exhaust purpose.
Live parts are covered by automatic shutter when the breaker is racked out.
The breaker cannot be moved from test to service position unless the breaker compartment door is closed.
The breaker cannot be moved from test to service position or vice versa with breaker in closed condition .
The Breaker cannot be closed in-between test & service position.
The Breaker compartment door cannot be opened when the breaker is in service positiion or in between service & test positions.
 
Salient Features of 12kv Vaccum Circuit Breaker
A Compact ,Light ,Weight Construction ,optimized to give minimum weight to KA ratio.
Superior mechanical endurance limit maintenance required only after 10,000 operations.
 
A unique "U" shaped insulation barries housing for the Vaccum interrupters ,imparting maximum mechanical strength against electrodynamic forces & provides most effective phase to phase and phase to earth segregation.
A screw type racking arrangement for easy insertion & withdrawl of the Circuit Breaker renders perfect contact pressure ,independend of operator's Force.
A simple motor charged spring operating mechanism noted for its high performance reliability.
A versatile mechanism capable of operating Vacccum Interrupters 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 charging 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
  Draw Out VCB
2
  Circuit Breaker Compartment
3
  Epoxy Bushing with Main Contact
4
  Shutter Lifting Arrangement
5
  Movable Shutter
Sr. No.
Description
6
  Primary Dis-connector / Finger Jaw
7
  Earth Bar
8
  Pressure Release Flaps
9
  Drive Box
10
  Rack-in / Rack-out lead screw
 
 
 
VCB Technical Data
 
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.