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Cost Effective Solution For All Type Of Old MOCB's |
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Fully type tested at CPRI |
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Easy adaptability. |
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Less down time than is required for new swithgear solution. |
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Extends safety & useful life of swithgear. |
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Reduction in maintenance and repairing costs |
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Reduction in cost compared with those needed to install completely new switch boards. |
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No disassembly of exiting cables & wiring of any structure as the only breaker is a direct replacement. |
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Salient Features of 12kv Vacuum Circuit Breaker |
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A Compact ,Light ,Weight Construction ,optimized to give minimum weight to KA ratio. |
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Superior mechanical endurance limit maintenance required only after 10,000 operations. |
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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. |
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A simple motor charged spring operating mechanism noted for its high performance reliability. |
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A versatile mechanism capable of operating Vacccum Interrupters of any type.Hence,dependence on single source of Vaccum interrupters eliminated. |
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Trip free mechanism suitable for repeated auto re-closing duty. |
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Spring charging time of less than 10 seconds. |
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Totally enclosed construction for spring charging motor. |
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Easy visual check of contact erosion. |
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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. |
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VCB Technical Data |
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Type |
ASIVB - 12 |
Operating Method |
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Manual / Motor Spring ChargeType |
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 Impuls 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 |
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IEC 62271-100, IS 13118 |
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copyright 2011-12, Alliance Panels & Switchgears Pvt. Ltd. |