Our Services

Surge Arrestors Testing


Surge Arresters are of various types, and they occur as a result of a spike in voltage. A surge in electric voltage is typical and expected. It is the sudden transition in overvoltage in a circuit. The voltage fluctuates on power or final lines. These surges are large and can overload a machine resulting in its failure..

The most occurring event in lightning due to which largest spies takes place over than 6000 voltage. These kinds of surges affect the functioning of machines.

Surge arrester testing services :

  • Onsite Testing of the HV/EHV class Surge Arrestors
  • On-line Leakage Current measurement (LCM) based on third harmonic resistive current.
  • Capacitance and dissipation factor measurement of insulation on per stack basis
  • IR value with Polarization Index (PI) & Absorption Index (AI),