VSG -12kV Spring Operating Mechanism

This VSG actuating mechanism is for VSG-12 vacuum circuit breaker, is a type of front indoor high voltage VCB, suitable for 3 phase AC,50 Hz, and rated voltage of 12kV, and applied in places with breaking of different load and frequent operations as protection and control unit, such as industrial and mining enterprise, power plants and transformer substations.

The VSG mechanism uses a cam (in the core module of the mechanism) to drive the spindle directly (in the frame spindle module) to reduce the transmission link and improve the transmission efficiency (no hinge connection). Reduce the energy input of the product and increase the service life of the product. Install the main circuit module, that is, complete the basic configuration of the vacuum circuit breaker. Then install the chassis car module, the contact arm, the contact, and the insulating sleeve to complete the configuration of the hand-cranked circuit breaker.

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Use Conditions
Techinical Parameters
Dimensions

Working Conditions of VSG-12 12kV Spring Operating Mechanism

1. Altitude not exceeding 2000m;
2. Ambient temperature: -15°c ~+40°c;
3. Relative humidity: monthly average not exceeding 95%, daily relative humidity not exceeding 95%;
4. Earthquake level not exceeding 8 class;
5. Without peril of fire, corrosion gas, explosion, vibration.

Techinical Parameters of VSG-12 12kV Spring Operating Mechanism

Item		Unit	Data
Rated voltage		kV	12
Rated insulation voltage	1 min power frequency withstand voltage	kV	65
	Lightning impulse withstand voltage(peak)	kV	75
Rated frequency		Hz	50/60
Rated current		A	630,1250,1600,2000,2500,3150
Rated short-time withstand current		kV	20,25,31.5
Rate peak withstand current			50,63,80
Rate short-circuit duration		S	4
a.c. component of rate short-circuit breaking current		kA	42
Rated short-circuit making current		kA	50,63,80,100
Mechanical life		time	10000
Permitted abrasion thickness of moving and fixed contacts		mm	3
Arcing time		ms	≤15