Three-phase asynchronous motor continuous control circuit
Source: InternetPublisher:偷熊计划 Keywords: Control circuit three-phase asynchronous motor BSP Updated: 2021/03/23
The three-phase asynchronous motor continuous operation control circuit is shown in Figure 4-2.
Compared , three additional links are added: First, the auxiliary
moving contact KM of the contactor KM is connected
in parallel with the start button SB2. The function is to press the start button SB2, the contactor KM is energized, the motor M
starts and runs, and the KM auxiliary moving contact
in parallel
with SB2 is also closed. When the start button SB2 is released, KM still causes the contactor KM coil to continue When energized, the motor M continues to run continuously.
This effect is called "self-locking". The KM contact is called "self-locking". The second contact is to control
the motor to stop. A stop button SB1 is added. Press the stop button SB1. Cut off the control circuit, the main contact
of the contactor KM shoe L is disconnected, and the motor stops; thirdly, a thermal relay FR is added. When
the motor is overloaded and heats up, after a period of time, its moving contact is disconnected, the control circuit is cut off , and the contact The main contact of the device
KM is disconnected and the motor stops.
- JDB-LQ-TQ/2 motor full voltage starting circuit
- Simple three-phase motor phase loss protection circuit
- PIC microcontroller controlled remote anti-theft alarm circuit
- A novel and practical power line anti-theft and cutting alarm circuit
- Homemade short circuit alarm device
- Rolling door anti-theft device
- High-sensitivity and high-loudness burglar alarm circuit
- Homemade motorcycle anti-theft alarm
- A gas stove igniter circuit
- Using Waste Motors to Create Wind Turbines
- Fish pond oxygenation reminder circuit
- Crop anti-frost circuit
- Fish farming thermostatic control circuit
- Straw returning to field crusher circuit
- Biogas concentration detection line
- Farmland drainage automatic control circuit
- DC ammeter
- Diode square rate detection circuit
- Inductive feedback oscillator circuit
- Various signal generator circuits