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Power control and operation requirements for Energy storage motor for VD4 mechanism

Mar 23, 2019

The secondary circuit of the Energy storage motor for VD4 mechanism includes a DC power control switch, an energy storage motor and an energy storage motor control switch, wherein the DC power control switch is connected to the DC bus for cutting or closing the total current, and energy storage. The motor is connected in series with the DC power control switch.


The VD4 mechanism uses an energy storage motor to control the switch in series between the energy storage motor and the DC power control switch. In the utility model, after the energy storage motor is separately controlled, the burning of the auxiliary plug due to poor contact when the vacuum switch is sent from the “test position” or the “inspection position” to the “working position” can be avoided, and the secondary circuit is eliminated. Hidden dangers.

 

The energy storage motor of the VD4 mechanism is quickly opened when the circuit breaker is powered off (ie, when it is opened) due to the spring force of the spring of the energy storage switch. Of course, the faster the circuit breaker is opened, the better, in order to have enough force to separate the contacts when the fault is high current (the large current will burn the contacts together). The energy storage switch controls the start and stop of the energy storage motor. The energy storage is when the circuit breaker is powered off (ie, when it is opened), and it is quickly opened due to the spring force of the spring of the energy storage switch. Of course, the faster the circuit breaker is opened, the better, in order to have enough force to separate the contacts when the fault is high current (the large current will burn the contacts together).


The VD4 mechanism uses the energy storage motor switch to control the start and stop of the energy storage motor. The function of the energy storage motor is to drive the energy storage mechanism to compress the spring of the closing mechanism, so that the spring of the closing mechanism generates a certain amount of compression energy, and the energy storage motor stops working, and is used for the need for a tripping.


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