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#1 Posted : Wednesday, November 02, 2022 4:26:56 PM(UTC)

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Location: 广东

When the motor continues to run under overload, phase loss, jamming, etc., the insulation of the stator coil of the motor is easily damaged, so various temperature protection devices appear. The three-phase built-in temperature control switch is mainly a new type of temperature control switch that is installed in a three-phase motor with a star connection to perform full thermal protection of the three-phase motor.
In addition to being installed in the winding of the rotating motor, the temperature control switch can also be embedded in other electrical equipment and electrical components with temperature control requirements for overheating protection, and can also be used as a thermal signal or a thermal sensor.
What is the wiring method ofHuakaiwei three-phase temperature control switch? The wiring method is based on the star connection method. The three-phase asynchronous motor accumulates energy to achieve instantaneous action, and the contact is disconnected, so that the three windings of the protected motor are separated from each other at the same time, and the circuit is cut off to achieve the protection function. On the contrary, because of the concentricity of the tail ends of the three groups of coils to be protected, a built-in three-phase thermal protector with four contact points connected in parallel is designed. Manufacturing principle: According to the characteristics of thermal bending of thermal bimetallic materials, through special treatment, the motor is cooled down, and the thermal bimetallic sheet loses energy to achieve an instantaneous reaction, closing the contacts and turning on the circuit.
Three-phase temperature control switch installation precautions: The product is installed in the place where the motor is most prone to heat and is not easy to dissipate heat, and is installed at the intersection of three sets of different windings as much as possible to protect the three-phase windings.
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