Modular Vacuum Circuit Breaker
PRO-VAC Modular Circuit breaker are ideally suited for switching applications the electrical distribution networks.
It consists of standardized modular and compact metal clad enclosures equipped with EV series Vacuum circuit breakers .The typical arrangement of standard panels will enable to fulfill different switching & Protection application in the medium voltage distribution system with utmost compactness safety & reliability.
Salient Features
Excellent breaking performance.
Maintenance free long service life.
Separate instrument transformer chamber & metering /relay chamber.
Independent explosion vent for all HIT compartments.
Unlimited extensibility on either side .
Highest degree of personal safety .
Compact and totally compartmentalized construction.
Specifications
Applicable Standards
Type Of Installation
Type of Protection
Phase to Phase Clearance
Phase to Earth Clearance
Bus Bar Rating
Incoming cable entry
Type of breaker
IEC 60298 & 60694 IS 3427:1997.
Metal Clad Construction indoor/outdoor
IP 4x/IP 5x Extemally and IP 2x between Compartments
100 mm (minimum)
100 mm (minimum)
4000 A (maximum)
Rear Bottom
EV series,Horizontal draw out and fixed version
EV Series
According to the IS/IEC standard,a circuit breaker is a mechanical device of connection,capable of establish,withstand and break the current under the normal operation of the circuit and occasionally under specific overload (e.g.short circuit current ) during a given time (generally fractions of second ).
Salient Features
EV series has been designed to ensure maximum operator safety.
Excellent breaking performance and good dielectric recovery.
Interlocked for safe operation.
Electrical Anti-Pumping feature.
Compact design and easily serviceable.
Great withstand to extreme temperatures.
Quick charging time (with in 10sec).
Resistant against severe climatic and environmental conditions.
Epoxy housing to protect vacuum interrupters against machanical stress and damages.
Specifications
Rated Voltage (kv)
Rated Current (A)
Frequency (HZ)
Symm.Breaking capacity (KArms/KAp)
Duration of short time current (sec)
Making Capacity (KAp)
Breaking capacity (KA)
Operating Time (m.sec)
Total Break Time (m.sec)
Arc Time (m.sec)
Making time (m.sec)
Operating Sequence
3,6,7,2,12,24,36
400,630,800,1250,2000,3150,4000
50/60
26.3/66
3
67
26.3
35-55
50-70
12-15
50-70
0.3min-co-3min-co 0-0.3sec-co-3min-co
Applications
EV series is suitable for switching application in electrical distribution networks for control and protection of power equipment in the network such as.
Transformers switching
Distribution substation
Ring main units
Cables and overhead lines charging etc.
Standards
Ev series type circuit breaker is designed and tested to meet .
IEC:62271-100/IEC:60056
IS:13118 Standards
