JCZR 7.2kv 12kv Indoor Vacuum Contactor-Fuse Combination Electric Appliance

JCZR 7.2kv 12kv Indoor Vacuum Contactor-FuseCombination Electric Appliance

General:

This combinationelectric appliance may install in the switch cabinet to form the F-C loop, usewith the integrated protection device. It is used for loading of the switchingon and switching off the power pant as well as the industry and miningenterprise, dropout AC high-tension motor, the transformer, capacitor and soon, and it has overload, short circuit protection function. This combination electricappliance may use in AC 50 HZ three-phase power systems.

Technical Data:

1.     MainTechnical Parameter see Table 1.

Rated voltage: 7.2kv / 12 kv

Power frequencywithstand voltage phase to phase, to earth: 32 kv / 42 kv

Power frequencywithstand voltage the fracture impact withstand voltage(fracture): 60 kv / 75kv

Fuse rated currentA: 25-250 / 25-250

Prospective shortcircuit breaking current KA: 50 / 50

Prospective shortcircuit making current(peak value) KA: 130 / 130

Prospective shortcircuit withstand current( peak value) KA: 10 / 10

Rated short timewithstand current( effective value) KA: 4 / 4

Rated shortcircuit duration S: 4 / 4

Rated makingcurrent KA: 4 / 4

Rated breakingcurrent KA: 3.2 / 3.2

Limit breakingcurrent KA: 4.5 / 4.5

Contactor distancebetween fixed and moving contact mm: 4.5 / 5

Contactorover-travel mm: 1.5 / 1.5

Mechanical life times: Model J:100,000; Model D:300,000 / Model J：100,000; Model D:300,000

Closing coil Rated operation voltage(V): DC220,DC110

Opening coil Rated operation voltage(V): DC220,DC110

Holding coil Rated operation voltage(V): DC220,DC110

Closing coil power: 1200 W

Holding coil power: 15 W

Opening coil power: 80 W

Closing coil Normal work voltage range: 85%-110%rated voltage

Holding coil Normal work voltage range: 85%-110%rated voltage

Opening coil Normal work voltage range: 60%-120%rated voltage