Insulation resistance tester is an instrument used to measure the insulation resistance of electrical equipment. It plays an important role in the maintenance, repair, testing, and calibration of electrical equipment. The following is a detailed introduction to the insulation resistance tester:
1. Working principle
The insulation resistance tester applies a voltage to excite the tested equipment, and then measures the resulting current, using Ohm's law to calculate the resistance value. It usually uses DC voltage as excitation instead of AC voltage to ensure measurement accuracy.
2. Main features
① High precision measurement: The insulation resistance tester has high precision and can accurately measure the insulation resistance value of electrical equipment.
② Strong anti-interference ability: Some advanced insulation resistance testers have anti-interference ability and can accurately measure in strong electric field environments.
③ Easy to operate: The insulation resistance tester is designed to be simple and easy to operate, and users only need to perform simple operations to complete the measurement.
Multifunctionality: Some testers also have other functions such as measuring capacitance and dielectric loss.
3. Precautions for use
① Safe operation: Before measurement, the power supply of the tested equipment must be cut off and short circuited to ground to ensure the safety of personnel and equipment.
② Environmental requirements: The testing environment should be relatively dry to avoid excessive humidity affecting the measurement results.
③ Correct wiring: Connect the tested equipment correctly according to the wiring requirements of the tester to avoid inaccurate measurements or damage to the tester caused by wiring errors.
④ Regular calibration: To ensure the accuracy of measurement results, the insulation resistance tester should be calibrated regularly.
4. Scope of application
The insulation resistance tester is suitable for insulation testing of various electrical equipment, including but not limited to:
① Power system: used to test the insulation resistance of key equipment such as generators, transformers, busbars, cables, etc.
② Industrial automation: used to test the insulation performance of electrical equipment such as motors, controllers, sensors, etc.
③ Architecture and infrastructure: used to test the insulation performance of electrical equipment such as distribution boxes, lighting systems, elevators, etc.
④ In the field of new energy, it is used to test the insulation performance of equipment such as photovoltaic panels, inverters, and energy storage batteries.
⑤ In the field of transportation, it is used to detect the power supply equipment, signal systems, and electrical systems of electrified railways and vehicles.
5. Maintenance and upkeep
① Regular cleaning: Use a clean soft cloth to wipe the tester housing and display screen to remove dust and stains.
② Avoid falling: During carrying and storage, avoid the tester from being subjected to vibration, impact, or falling.
③ Regular inspection: Regularly check whether the wiring, plugs and other components of the tester are intact, whether there is any damage or aging phenomenon.
ZC-430C Digital insulation resistance meter also known as megohmmeter, high voltage insulation resistance tester, etc., for the insulation resistance test. The instrument has a large LCD screen gray backlit display, data storage, data access, alarm, automatic shutdown and other functions. At the same time, it also has the function of measuring DC voltage, AC voltage, absorption ratio and polarization index of DC voltage. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.At the same time, it can output a variety of different voltage levels with the step-adjusting voltage function.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
