VACUUM SWITCH EM/VL WITH SPRING-MOTOR MECHANISM
Specifications
|
№. |
Parameter |
Vacuum switch EM/VL-06/12/17/25 |
Vacuum switch EM/Vl-12/17/25/40 |
||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Voltage class, kV | 7,2 | 12 | 17,5 | 24 | 7,2 / 12 | 17,5 | 24 | 36 |
| 2 | Rated breaking current, kA | 20/25/31,5 | 20/25/31,5 | 20/25/31,5 | 12,5/16/25 | 31,5/40/50 | 50 | 25/13,5/40 | 25/31,5/40 |
| 3 | Rated current of release device, A |
630 1250 2000 |
630 1250 2000 |
630 1250 2000 2500 |
630 1250 2000 2500 |
1250 2000 3150 4000 |
1250 2000 2500 4000 |
1250 2000 2500 3150 |
1250 200 3150 |
| 4 |
List of additional accessories (as per questionnaire) |
Auxiliary alarm contact; minimum voltage release device; second shunt release; auxiliary contact of the activation catch position, electromagnetic interlocking device; connector lock; lock; button cover; temperature sensor; push-in/pull-out switch handle; etc. |
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| 5 | Commutation wear-resistance | 30000 cycles | 20000 cycles | ||||||
| 6 | Control circuit voltage, V | =24..220 / -48..250 | =48..220 / -48..250 | ||||||
Complectation
Vacuum circuit breakers EM/VL are intended for installation in switchgears (both high-voltage and medium voltage) of industrial enterprises, large buildings, power plants, and are designed to protect equipment and personnel in cases of earth fault, short circuit or in case of the occurrence of overload current. Vacuum switch (6-10 kV to 40.5 kV) is equipped with an arc chute which opens the circuit after the signal from the relay which is located separately from the switch.
EM/VL switches are characterized by a reliable compact design, high breaking capacity (up to 50 kA), high rated current (up to 4000 A) and availability of various accessories.
Vacuum circuit breakers of EM/VL brand have the increased reliability due to optimized temperature characteristics. The design of devices fully complies with all safety requirements put forward for this type of devices.
