交流电动机交接试验标准(AC motor transfer test standard)

交流电动机交接试验标准（AC motor transfer test standard）AC motor transfer test standard________________________________________5 AC motor transfer test standardThe test items of 5.0.1 AC motor are as follows:First, the insulation resistance and absorption ratio of the measuring coil;Two 、 DC resistance of measuring coil;Three. AC withstand voltage test of stator coil;Four. AC withstand voltage test of rotor winding of wound rotor motor;Five. AC withstand voltage test of rotor coil of synchronous motor;Six. Measure the insulation resistance of variable resistor, starter resistor and de excitation resistor;Seven. Measure the DC resistance of variable resistor, starter resistor and de excitation resistor;Eight. Measure the insulation resistance of motor bearings;Nine. Check the polarity of stator coil and the correctness ofits connection;Note: (1) motors under 40 kW are tested in accordance with the first, sixth item in this article;(2) AC motor installed in coal mine or other explosion dangerous places can not be AC withstand voltage test.Article 5.0.2 insulation resistance and absorption ratio of measuring coil.A rated voltage below 1000 volts, room temperature insulation resistance should not be less than 500 billion ohm; rated voltage of 1000 volts and above, the insulation resistance near the operation temperature value of the stator coil should be not less than 1 / kV megohm, rotor coil should be not less than 500 billion / kV Europe; insulation resistance temperature conversion can refer to appendix three;The absorption ratio should be measured at two or more than 1000 volts, the absorption ratio should be no less than 1.2, and the phase separation should be measured when necessary.Note: (1) before the AC withstand voltage test, the insulation of the coil should meet the requirements of this clause one or two;(2) AC withstand voltage test of the motor, when its insulation resistance value is close to the operating temperature (epoxy mica mica)The motor with an edge is not less than its rated voltage at normal temperature, and can be put into operation at 1 kV per kilo volt. butThe end cover should not be disassembled before the operation.Article 5.0.3 DC resistance of measuring coil.The difference between above 1000 Volts or 100 kW motor each phase coil DC resistance should not exceed the minimum value of 2%, without output neutral point of the motor to measure the DC resistance between the lines, their mutual differences should not exceed the minimum value of 1%.Article 5.0.4 AC withstand voltage test of motor stator coil.The test voltage standard is specified in table 5.0.4.Voltage standard 5.0.4 for AC voltage withstand test of motor stator coilAC voltage withstand test of rotor winding for winding motor 5.0.5.The test voltage standard is specified in table 5.0.5.AC winding voltage standard table of rotor winding motor 5.0.5Uk: when the rotor is stationary, the rated voltage is applied on the stator coil, and the voltage is measured when the rotor coil is open.Article 5.0.6 AC voltage withstand test of rotor coil of synchronous motor.The test voltage is 7.5 times of the rated excitation voltage, but should not be less than 1200 volts, no higher than 75% of the factory test voltage.Article 5.0.7 measuring insulation resistance of variable resistor, starter resistor and de excitation resistor.Measured with the circuit, the insulation resistance should be no less than 500 billion euro.Article 5.0.8 measuring DC resistance of variable resistor, starter resistor and de excitation resistor;The difference between the measured resistance and the product value should be no more than 10%.In the process of adjustment, there should be good contact, no open circuit phenomenon, the change of resistance value should be regular.Article 5.0.9 measuring insulation resistance of motor bearings.When a pipe connection, should be in the pipeline after installation, use 1000 volt megger insulation resistance shall not be less than 500 billion ohm.Article 5.0.10 examines the polarity of stator coils and the correctness of their connections.The polarity and connection of stator coil should be correct. If the neutral point is not extracted, the polarity can not be checked.People's Republic of China national standardDC motor test method直流电机试验程序GB 1311-89代替GB 1311-771主题内容与适用范围本标准规定了直流电机（以下简称电机）的试验电源、仪表选择及试验前检测和各项试验方法。

本标准适用于一般用途的电机。

对特殊用途或有特殊试验要求的电机，凡本标准未规定的试验方法，应在该类型电机的标准中作补充规定。