What are the uses of high-energy varistor?

The demand for high-energy varistor in the market is also very large, and the use on the circuit is also very much. This article summarizes the knowledge about high-energy varistor, and hopes to help newcomers better understand high-energy varistor. .

The high-energy varistor is characterized by a large ratio of mass to volume (300J/cm3 to 750J/cm3), strong long-pulse surge capability, but low voltage (20V/mm~500V/mm), high current. Poor characteristics (V10kA/V1mA>2.0).

The use of high energy varistor:

Applicable to the occasions where wide pulse amount absorption and overvoltage occur frequently, mainly used in: de-excitation of generator set, size DC motor, excitation winding of high-power traction motor, electromagnet (such as electromagnetic crane), quantity of railway locomotive electrical opening and closing Absorption and overvoltage protection; current transformer negative side winding, open circuit burnout protection, protect the operator from harm; large arc switch arc extinguishing, superconducting magnet energy shift; high power rectification and transmission equipment overvoltage absorption; Overvoltage protection of thyristors and thyristors in power DC devices.

High-energy varistor has a lot of protection for the circuit, so you can understand it before using it. In the dazzling array of electronic markets, we must also pay attention to the quality of high-energy varistor, and avoid the purchase of some quality-resistant resistors. If you need a sample test, please contact us and try to solve the problem for you.