CN206619561U - Circuit breaker operation mechanism electric-control system - Google Patents

Abstract

The utility model belongs to electric equipment field, more particularly to circuit breaker operation mechanism electric-control system.It includes opening button, switch knob, the first relay, the second relay and the 3rd relay, the utility model controls the action of energy storage motor, switching winding and closing coil by relay, realize the automation of the action of circuit breaker operation mechanism, without manually being operated, the remote control of breaker is realized at edge.

Description

Circuit breaker operating mechanism electric control system

technical field

The utility model belongs to the field of electrical equipment, in particular to an electric control system of a circuit breaker operating mechanism.

Background technique

The existing manual operating device of the circuit breaker operating mechanism is rotated by the handle at a certain angle around the rotating shaft from top to bottom, and once rotated, an energy storage operation on the operating mechanism is realized. Ratchet, the ratchet is closely matched with the rotating shaft, and a handle is installed on the right side of the operating mechanism. When the first energy storage is completed, the handle below the side plate will prevent the ratchet from resetting, and the handle will always return under the force of the return spring. To the initial state, the specific circuit breaker operating mechanism manually operates the device.

The circuit breaker operating mechanism in the prior art is manually operated, and remote control cannot be realized.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model designs an electric control system for realizing the automatic operation of the circuit breaker operating mechanism.

The technical scheme of the utility model is as follows:

An electric control system for a circuit breaker operating mechanism, which includes an opening button, a closing button, a first relay, a second relay, and a third relay, and is characterized in that:

The closing button is connected to one end of the power supply, and the other end is connected to the third relay. After the third relay, the normally closed contact of the auxiliary micro switch of the main switch and the normally closed contact of the auxiliary micro switch of the grounding switch are connected in sequence. , The normally closed contact of the micro switch at the handle operation position, the normally closed contact of the isolating switch micro switch, the normally open contact of the lower door interlock micro switch, and the normally open contact of the lower door interlock micro switch are connected to the power supply ,

It also includes an energy storage limit unit, the energy storage limit unit is connected in parallel with the third relay, and the energy storage limit unit includes the normally open contact of the first energy storage limit micro switch, the second energy storage The normally open contact of the limit micro switch and the second relay,

One end of the opening button is connected to the power supply, and the other end is connected to the normally open first active switch auxiliary microswitch. The first active switch auxiliary microswitch is connected to a first relay, and the first relay is connected to the power supply.

There is a normally open contact of the third relay which is normally open between the power supply and the third relay,

a normally open contact of the first relay is provided between the power supply and the first relay,

It also includes a rectifier diode connected to the power supply, and the rectifier diode is connected in parallel with a closing coil control unit, an opening coil control unit and an energy storage motor control unit,

The closing coil control unit includes a normally open contact of a second relay connected to a rectifying diode, the normally open contact of the second relay is connected to a closing coil, and the closing coil is connected to the rectifying diode;

The opening coil control unit includes a normally open contact of a first relay connected to a rectifier diode, the normally open contact of the first relay is connected to the opening coil, and the opening coil is connected to the normally closed contact of the third relay , the normally closed contact of the third relay is connected to the rectifier diode;

The energy storage motor control unit includes a normally open contact of the third relay connected to the rectifier diode, the normally open contact of the third relay is connected with the normally closed contact of the second energy storage limit micro switch, and the second The energy storage limit micro switch is connected to the energy storage motor, the energy storage motor is connected to the normally open contact of the third relay, the normally open contact of the third relay is connected to the rectifier diode, and the second energy storage limit micro switch is connected. The normally closed contact of the first energy storage limit microswitch connected in parallel with the normally closed contact of the dynamic switch.

Furthermore, it also includes the closing indicator light connected to the power supply, the closing indicator light is connected to the normally open contact of the main switch auxiliary micro switch, the normally open contact of the main switch auxiliary micro switch is connected to the power supply, and also includes The closing indicator light is connected in parallel with the opening indicator light, the opening indicator light is connected with the normally closed contact of the auxiliary micro switch of the main switch, and the normally closed contact of the auxiliary micro switch of the main switch is connected with the power supply.

Further, it also includes a remote control assembly connected to the power supply, the remote control assembly includes a first remote control switch and a second remote control switch connected in parallel, the first remote control switch is connected between the closing button and the third relay , the second remote control switch is connected between the opening button and the first relay.

In summary, the utility model has the following beneficial effects:

The utility model controls the action of the energy storage motor, the opening coil and the closing coil through the relay, realizes the automation of the action of the circuit breaker operating mechanism, does not need manual operation, and realizes the remote control of the circuit breaker.

Description of drawings

Fig. 1 is the schematic diagram of the electric control system of the present utility model;

detailed description

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, the electric control system of the circuit breaker operating mechanism includes the opening button SBT, the closing button SBC, the first relay K1, the second relay K2 and the third relay K3,

The closing button SBC is connected to one end of the power supply, and the other end is connected to the third relay K3. After the third relay K3, the normally closed contact S7.2 of the auxiliary micro switch of the main switch and the auxiliary micro switch of the grounding switch are connected in sequence. The normally closed contact S10.1 of the switch, the normally closed contact S15 of the micro switch of the handle operating position, the normally closed contact S9 of the isolating switch micro switch, the normally open contact S13 of the micro switch of the lower door interlock, The normally open contact S13 of the interlock micro switch is connected to the power supply. During the closing process, the detection of the above contacts is introduced to ensure the safety of the closing process and avoid safety accidents caused by misoperation.

It also includes an energy storage limit unit, the energy storage limit unit is connected in parallel with the third relay, and the energy storage limit unit includes the normally open contact S6 of the first energy storage limit micro switch connected in series, the second storage The normally open contact S8 of the limit microswitch and the second relay K2, the energy storage limit microswitch provided can detect the end point of the energy storage process.

One end of the opening button SBT is connected to the power supply, the other end is connected to the normally open contact S7.1 of the active switch auxiliary micro switch, and the normally open contact S7.1 of the active switch auxiliary micro switch is connected to the first relay K1, the first relay K1 is connected to the power supply,

A normally open contact of the third relay which is normally open is provided between the power supply and the third relay K3,

A normally open contact of the normally open first relay is provided between the power supply and the first relay K1,

It also includes a rectifier diode VD connected to the power supply, and the rectifier diode VD is connected in parallel with a closing coil control unit, an opening coil control unit and an energy storage motor control unit,

The closing coil control unit includes the normally open contact of the second relay K2 connected to the rectifier diode VD, the normally open contact of the second relay K2 is connected to the closing coil YC, and the closing coil YC is connected to the rectifying diode VD ;

The opening coil control unit includes a normally open contact of the first relay K1 connected to the rectifier diode VD, the normally open contact of the first relay K1 is connected to the opening coil YT, and the opening coil KT is connected to the third relay K3 The normally closed contact of the third relay K3 is connected to the normally closed contact of the rectifier diode VD;

The energy storage motor control unit includes the normally open contact of the third relay K3 connected to the rectifier diode VD, the normally open contact of the third relay K3 and the normally closed contact of the second energy storage limit microswitch S8 connection, the normally closed contact S8 of the second energy storage limit micro switch is connected to the energy storage motor, the energy storage motor is connected to the normally open contact of the third relay K3, and the normally open contact of the third relay K3 is connected to the rectifier diode The VD connection also includes the normally closed contact of the first energy storage limit microswitch S6 connected in parallel with the normally closed contact of the second energy storage limit microswitch S8.

Furthermore, it also includes the closing indicator HR connected to the power supply, the closing indicator HR is connected to the normally open contact S7.3 of the main switch auxiliary micro switch, and the normally open contact S7 of the main switch auxiliary micro switch .3 Connected to the power supply, including the opening indicator light HG connected in parallel with the closing indicator light HR, the opening indicator light HG is connected to the normally closed contact S7.3 of the auxiliary micro switch of the main switch, and the auxiliary micro switch of the main switch The normally closed contact S7.3 is connected with the power supply.

Further, it also includes a remote control assembly connected to the power supply, the remote control assembly includes a first remote control switch YKH and a second remote control switch YKF connected in parallel, and the first remote control switch YKH is connected between the closing button SBC and the second remote control switch. Between the three relays K3, the second remote control switch YKF is connected between the opening button SBT and the first relay K1, the first remote control switch and the second remote control switch can be switched remotely to control the third relay and the first relay Working status, thereby controlling the closing and opening of the circuit breaker.

In summary, the utility model has the following beneficial effects:

The utility model controls the action of the energy storage motor, the opening coil and the closing coil through the relay, realizes the automation of the action of the circuit breaker operating mechanism, does not need manual operation, and realizes the remote control of the circuit breaker.

Claims (3)

1. The electric control system of the circuit breaker operating mechanism, which includes an opening button, a closing button, a first relay, a second relay and a third relay, characterized in that: The closing button is connected to one end of the power supply, and the other end is connected to the third relay. After the third relay, the normally closed contact of the auxiliary micro switch of the main switch and the normally closed contact of the auxiliary micro switch of the grounding switch are connected in sequence. , The normally closed contact of the micro switch at the handle operation position, the normally closed contact of the isolating switch micro switch, the normally open contact of the lower door interlock micro switch, and the normally open contact of the lower door interlock micro switch are connected to the power supply , It also includes an energy storage limit unit, the energy storage limit unit is connected in parallel with the third relay, and the energy storage limit unit includes the normally open contact of the first energy storage limit micro switch, the second energy storage The normally open contact of the limit micro switch and the second relay, One end of the opening button is connected to the power supply, and the other end is connected to the normally open first active switch auxiliary microswitch. The first active switch auxiliary microswitch is connected to a first relay, and the first relay is connected to the power supply. There is a normally open contact of the third relay which is normally open between the power supply and the third relay, a normally open contact of the first relay is provided between the power supply and the first relay, It also includes a rectifier diode connected to the power supply, and the rectifier diode is connected in parallel with a closing coil control unit, an opening coil control unit and an energy storage motor control unit, The closing coil control unit includes a normally open contact of a second relay connected to a rectifying diode, the normally open contact of the second relay is connected to a closing coil, and the closing coil is connected to the rectifying diode; The opening coil control unit includes a normally open contact of a first relay connected to a rectifier diode, the normally open contact of the first relay is connected to the opening coil, and the opening coil is connected to the normally closed contact of the third relay , the normally closed contact of the third relay is connected to the rectifier diode; The energy storage motor control unit includes a normally open contact of the third relay connected to the rectifier diode, the normally open contact of the third relay is connected with the normally closed contact of the second energy storage limit micro switch, and the second The energy storage limit micro switch is connected to the energy storage motor, the energy storage motor is connected to the normally open contact of the third relay, the normally open contact of the third relay is connected to the rectifier diode, and the second energy storage limit micro switch is connected. The normally closed contact of the first energy storage limit microswitch connected in parallel with the normally closed contact of the dynamic switch. 2. The circuit breaker operating mechanism electric control system according to claim 1, characterized in that: it also includes a closing indicator light connected to the power supply, the closing indicator light is connected to the normally open contact of the auxiliary micro switch of the main switch, The normally open contact of the auxiliary micro switch of the main switch is connected to the power supply, and the opening indicator light connected in parallel with the closing indicator light is connected with the normally closed contact of the auxiliary micro switch of the main switch. The normally closed contact of the automatic switch is connected to the power supply. 3. The circuit breaker operating mechanism electric control system according to claim 1, further comprising a remote control assembly connected to the power supply, the remote control assembly including a first remote control switch and a second remote control switch connected in parallel , the first remote control switch is connected between the closing button and the third relay, and the second remote control switch is connected between the opening button and the first relay.