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.
1.The modular spring operating mechanism is convenience in the manufacture and maintenance.
2.The key parts of the operating mechanism are made of superior quality alloy and the operating mechanism grips are made of the high quality cold rolled sheet with a high structural strength.
3.The component surface adopt the cathode electrophoretic painting with a perfect corrosion resistance.
4.The linear-motion closing spring design minimizes the effect of spring self-vibration on the fatigue strength and it is useful to improve the product stability.
5.Both AC and DC power operaion and control are available and it is convenience for different users.
|Rated insulation voltage||1 min power frequency withstand voltage||kV||65|
|Lightning impulse withstand voltage(peak)||kV||75|
|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|
|Permitted abrasion thickness of moving and fixed contacts||mm||3|
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.
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