Impulse voltages withstand Levels of rotating A.C.Machines with form-wound stator coils


Impulse voltages withstand Levels of rotating A.C.Machines with form-wound stator coils

Impulse voltages withstand Levels of rotating a.c.Machines with form-wound stator coils.

Impulse Voltage test:

  • 1.2μs a time-to-half-value of 50 μs and a peak value of the impulse voltage Up (around 30kVa.c).
    This voltage shall be applied between terminal and earth of the coil. 5 pulses one after the other
    with some duration in between two pulses;
  • Impulse voltage to be applied between terminals of the coil @ 19kV peak with the front time of the
    first voltage peak at the terminals of the sample coil shall be 0,2 micro second.

Break Down Test:

  • Selected coil to be applied with a voltage of 14.2 kV at power frequency between conductor and ground for 1 minute and continue increasing the voltage
    at 1 kV / sec until the coil breaks down.
  • Coil shall be cut at overhang portion and inter turn voltage shall be tested. Voltage to be applied is 6Kv, the maximum voltage would be around 30kVa.c

Our Accreditation / Recognitions

PESO

DGMS

IECEx

NABL

BIS

NABCB

News & Events

  • March – 2020

    KLCS is now an IECEx ExCB & ExTL

    Read More



  • January – 2020

    KLPL gets BIS recognition for IS/IEC 60079-1:2014.

    Read More



  • December – 2018

    Testing facilities for IS/IEC: 60079-28:2006 Explosive Atmospheres Protection of Equipment and Transmission Systems Using Optical Radiation.

    Read More



  • February – 2017

    KLPL conduits specialized training workshop for DGMS officers.
    Read More



  • August – 2016

    IECEx Training & Competency Programs: Sets off in flying colors.

    Read More



  • February – 2016

    DGMS visits Karandikar Laboratories.
    Read More



  • May – 2015

    Karandikar Laboratories Pvt Ltd is an accepted IEC Ex Testing Laboratory
    Read More



Contact Us

Head Office:

B-101, Ansa Industrial Estate,
Saki Vihar Road, Saki Naka,
Andheri (E), Mumbai - 400 072

Email:

For Commercial Proposals : sales@karandikarlab.com

For Complaints & Appeals : quality@karandikarlab.com