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The insulation withstand voltage tester is a device used to test the insulation strength of various insulation materials, electrical components, etc., to ensure the safety of power equipment during use. So, what are the characteristics and importance of insulation withstand voltage testers?

The working principle of the insulation withstand voltage tester is to intermittently cut off the leakage current generated by the tested object under low voltage application. The leakage current test here results in the leakage current of the tested object under several times the test voltage, leading to several tens of times the additional voltage. The current set on the insulation withstand voltage tester is the tripping current of the instrument. The insulation withstand voltage tester, commonly known as the withstand voltage tester, increases with the rise of the test voltage. When the test voltage reaches the set upper limit and is maintained for 60 seconds, and the insulation of the tested object is not broken down during this process, the testing instrument will prompt that the test is qualified; On the contrary, assuming breakdown, the current flowing through the insulation withstand voltage tester will issue a current alarm, indicating that the test is not qualified.

The tripping current of the insulation withstand voltage tester is only a reference value, not a limit value. It is set to determine whether the insulation can be broken down and serves only as a pointer. The setting of the test voltage is the limit pointer (as we have stated in previous electronic reports). The setting directly affects the cutting efficiency of the withstand voltage test. If the set value is too small, it is possible to mistake qualified products for defective products; Another approach is to set the product too large and mistake defective products for qualified ones.

Precautions for insulation withstand voltage tester:

Firstly, most insulation withstand voltage testers do not have waterproof function, so when using them, pay attention to waterproofing

Secondly, electronic products are easily broken, so early protection is important. Again, the insulation withstand voltage tester sensor is very sensitive and easily damaged.

The importance of insulation withstand voltage tester:

Used to ensure the integrity of windings or cables in electric motors, transformers, switchgear, and electrical installations. The types of equipment and testing notices that must be tested in the test preparation. On the other hand, when the tested equipment is a long-term cable, the current that changes over time in large motors or generators (high capacitance equipment) will last for several hours. These currents will continuously adjust the instrument readings, making it impossible to obtain accurate and constant readings. This condition can be restrained, and after testing, a step voltage or medium is subjected to a test, such as establishing a trend between readings. These tests do not rely on a single browsing, but on the convergence of relative readings.

Chiyu Electric Power Company is a strong manufacturer specializing in the production of insulation withstand voltage testers. Designed in accordance with the latest national standards in the power industry, this advanced withstand voltage testing equipment is used to test the insulation strength of various electrical products, electrical components, insulation materials, etc. under intermittent rail voltage, in order to check the insulation degree of the products, create insulation faults in the tested products, and measure the ability of overvoltage.