When it comes to electrical insulation testing, one of the most important tools in a technician's arsenal is the Megohmmeter. A Megohmmeter, also known as an insulation resistance tester, is designed to measure the resistance of electrical insulation. This is important because good insulation resistance ensures that electrical equipment is safe to operate and reduces the risk of electrical shock or fire.
The Megohmmeter works by applying a high DC voltage to the insulation being tested and measuring the current that flows through it. The amount of resistance to this current indicates the condition of the insulation and the likelihood of it breaking down under load.
Wuhan huayi electric power technology is a professional manufacturer of megohmeter, and you can choose different models and types of megohmeters. GM-20KV has the below features.
1, strong anti-interference ability: with strong resistance to electric field induction interference ability, up to 2mA(50Hz), known to adapt to 500kV substation without disassembling the on-site measurement of 500kV large transformer insulation resistance parameters;
2, the short circuit current is large: the short circuit current of the test power supply is > 5mA, the maximum is 15mA. Adapt to large capacity, large inductance test;
3, resistance measurement range is wide: from 0.5MΩ ~ 1999GΩ. Accurate reading, high resolution;
4, high voltage output range is wide: can choose 0.5, 1, 2.5, 5, 10, 20kV, can also be smoothly adjusted from 0V continuous adjustment to the required voltage;
5, sound and light reminder: with timing function, remind the user to record, and analyze the absorption ratio and polarization index of the measured object;
6, high quality: the key components are all imported components to ensure accurate measurement accuracy;
7, easy to use: the use of integrated chassis, small size, light-weight, easy to carry;
8, beautiful appearance: the use of strong and abrasive materials, so that the overall texture of the instrument and longer service life;