All the instrument transformers upto 500kV have been type tested as per IEC/IS standards. Instrument transformers have also been type tested for Seismic withstand test at 0.5g on all 3 axis , fast transient(Multiple Chopped Impulse) test & Internal ARC test. There are 8 testing labs out of which 3 are of routine testing, 3 dedicated test labs for incoming raw material & remaining 2 are 850kV Discharge free test lab with Resonant Test System. The testing lab is accredited by National Accreditation Board for Testing and Calibration Laboratories(NABL). Ministry of Science & Technology for ISO 17025:2005, an internationally acclaimed standard for laboratory testing. In house R&D Centre recognized by Ministry of Science & Technology.
Mehru has India’s 1st High Voltage Partial Discharge Test Lab with Series Resonant System having both variable Inductance and variable frequency option which allows High Voltage & Partial Discharge testing of CT at 50 Hz & PT at 100 Hz or 150 Hz directly.
The routine testing labs are equipped with latest equipments to carry out all routines tests as per IEC/ IS / BS/ AS and ANSI standards.To ensure failure proof & resilient product, raw material testing is one of the major priorities at Mehru. All the raw materials are procured from carefully selected vendors & passed through stringent in-house testing before being used.
Incoming raw material test lab is equipped to carry out all routine tests on various raw materials like Insulating paper, copper, Transformer Oil, Insulator, Core etc.