1, generally by megohmmeter measure the insulation resistance of the motor, to measure every two phase winding and insulation resistance between each phase winding and chassis, to judge the insulation performance of the motor. 2, when using measurement insulation resistance by megger are usually under 500 v voltage of motor using the 500 v megohmmeter measurement; Motor of 500 ~ 1000 v voltage measured with 1000 v megohmmeter; For more than 1000 v voltage motor measured with 2500 v megohmmeter. Step progress motor 3, motor in thermal state (750C)Conditions, the general small and medium-sized low-voltage motor insulation resistance should not be less than 0. 5 ohms, high-pressure work every kv voltage of the motor stator insulation resistance should not be less than 1 megohm, each v working voltage winding of the rotor winding insulation resistance value, the lowest shall not be less than zero. 5 megohm; The secondary loop of the motor insulation resistance should not be less than 1 megohm. Motor insulation resistance measuring steps are as follows: 1, will be six joint apart for the end of the motor terminal box. 2, put the megohm flat, first not wiring, shaking megohmmeter, whose hands should be pointing & other; ∞”And on the table & other; L”(The line)And & otherE”(Grounding)Two terminal with a line of nipple, slowly shaking the handle, whose hands should be pointing & other; 0'Place. 3, measure the resistance between one of the three-phase winding motor. Two tests will receive any two phase winding, on both sides of the head, flat shaking table, to shake at a constant speed of 120 RPM megohmmeter a minute later, read the clock stability indicated value. 4, use the same method, measurement of each phase in turn around the casing with insulation resistance value. But should pay attention to, it says on the table & other; E”。 the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
