140CRA93100 Do you know how to measure motor resistance using a DC resistance tester?
140CRA93100 During the maintenance and overhaul of the motor, the accurate measurement of the resistance value of the motor is the key step to ensure the normal operation of the motor and prevent the fault. In order to achieve the accuracy of the motor resistance measurement, the DC resistance tester is the preferred tool because of its high precision and high efficiency. So, how to use the DC resistance tester to measure the motor resistance? This article will answer that question in detail.
First, before the motor resistance measurement, it is necessary to pay attention to the following preparations:
1. Choose the right DC resistance tester: Choose the right DC resistance tester according to the rated voltage and rated current of the motor to ensure the accuracy of the measurement results.
2. Disconnect the power supply: Before measuring, it is necessary to ensure that the motor has been completely powered off and cut off the connection with the power supply to avoid electric shock accidents.
3. Check the motor status: check whether the motor is damaged, short circuit or poor contact, such as abnormal conditions, need to be repaired first.
Two, 140CRA93100 DC resistance tester test motor resistance steps are as follows:
1. Connect the test line: Connect the test line of the DC resistance tester (usually red and black) to the two leading terminals of the motor respectively. It should be noted that the connection of the test line should be firm and reliable to avoid poor contact or short circuit.
2. Set test parameters: According to the rated voltage and rated current of the motor, set the test parameters of the DC resistance tester. These parameters usually include test current, test time, etc. When selecting the test current, a moderate value should be selected to ensure measurement accuracy without causing damage to the motor.
3. 140CRA93100 Start the test: press the start button of the DC resistance tester to start the test. During the test, the tester will automatically output the test current and measure the resistance value of the motor. After the test is completed, the tester will display the measurement results.
4. Record data: record test results, including the resistance value of the motor, test current, test time, etc. These data are very helpful for subsequent motor performance evaluation and analysis.