Motor heater can prevent the motor from being damp, to ensure the normal operation of the motor, the motor is only in the case of high insulation resistance, will operate normally, in addition, in the low temperature environment, the motor heater can also prevent the motor from being too cold to start.
First, the role of the motor heater
Motor heater is useful to prevent the motor from being damp, if the motor is not placed for a long time, before use to the first power heating drive damp, in the power test machine to prevent the motor damage.
Main function of the heater:
Keep the motor with high insulation resistance to prevent the condensation of moisture accumulation due to the internal winding insulation drop due to damp; the second function is to prevent the motor from too cold start (mainly for low temperature).
Two, the role of the motor space heater
The power size of the space heater is not associated with the power of the motor.
The role of the space heater: to prevent the motor from not running for a long time, and the internal winding insulation drops due to damp.
Function 2: prevent the motor from too cold start (mainly for low temperature places). The power of the space heater is generally not very large, that is, one or two hundred watts.
Three, the use of the motor heater precautions
High voltage motor heater, also called motor space heater, high power low voltage motor also has space heater.
Two functions: one is to prevent the motor from damp, two is when the temperature is low, to prevent the motor from too cold start. Its power is usually very small, and it is a thermostatic heater that can be used when the motor is not running.
In terms of control, only one normally closed auxiliary contact of the main circuit breaker is inserted in its control loop to prevent the heater from operation during the motor operation.
1. Motor heater is useful to prevent the motor from getting damp.
2. If the motor is not used for a long time, it should be energized to heat and drive the tide before use.
3. When energizing the test machine, the motor can be damaged.
