How to use the contactor, what is the contactor jogging? How does it work?

Create Date: 2024-8-30 12:03:23|Source: Eaton/Eaton

Working principle: Since it is jogging, then the contactor must be electrified, whether the contactor, relay, time relay, all need to be energized to work. So we will use the contact coil here, you see in the figure, the working voltage of the contactor coil, we use the contactor in this issue is 220V. The contactor coil has A1 --- A2 of which the contactor coil has two A2s. When we wiring, we can wire according to the actual situation.

The contactor is directly energized: the following picture is to make the contactor directly electrified, first of all, the power supply is 220V, a live wire, a neutral wire, and a live wire. Let's first look at how the coil is wired, the live wire enters the A1 of the contactor coil, and the neutral wire enters the A2 of the contactor coil. 、

Main circuit: live wire into the main contact L1, neutral wire into L2 T1----- T2 outgoing line to connect the load,

When we close the circuit breaker contactor, the power is sucked in, and the disconnect circuit breaker contactor loses power.

This type of circuit is called a direct pick-up circuit. Next, we introduce jog control circuits

Contactor jogging: First of all, three-phase electricity is used in the figure below, which are L1--- L2--- L3. QS is circuit breaker, FU is fuse, KM contactor main contact, M motor,

Control circuit, SB button, KM coil. The three live wires enter the main contact of the contactor respectively, the contactor outlet line enters the motor, and the control circuit L1 is connected to the SB button normally open, and passes through the contactor coil.

Operation: Close the QS circuit breaker, press the start button SB, the contactor coil is energized, the main contact is closed, the motor is running, release the SB button The contactor coil loses power, the main contact of the contactor is disconnected, and the motor loses power and stops running.

How to use the contactor, what is the contactor jogging? How does it work?

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