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  PRODUCTS >> INTERNATIONAL>> LOW VOLTAGE CONTROL PRODUCTS >> OUR TEST LABORATORY

Our in-house Low Voltage, High Power Laboratory is a group of five major testing facilities, for complete evaluation of LV Switchgear and Control gear Products :

  • Short Circuit Test Laboratory 50 kA rms, 120 kA peak, 660 V ac. 50 kA, 1000V dc.
  • Electrical Endurance Laboratory For Contactors upto 630A, 415V ac.
  • Temperature Rise Test Laboratory 6400A, 6.4V, 3 phase and 10,000A, 2.5V, single phase.
  • 4 kA Short Circuit Test Laboratory For short circuit tests on Rewirable Fuse Switch Units, MCBs etc. Electrical endurance test on MCBS, MCCBs, FSUs and DOL Starters.
  • Mechanical Endurance Laboratory Mechanical life of Contactors, ACBS, MCBS, MCCBS, FSUs and DOL Starters.

Individual Laboratories or a suitable combination can also be used for the specific purpose of development / proving tests on ACBS, MCBS, MCCBS, Switch Fuses / Fuse Switches, Rewirable HRC Fuses, Contactors, Starters, etc. for conformance to the International Standards.

These facilities can also be used for Dynamic Peak Withstand Current tests on series connected equipments like Busbars and Supports in Panels, Current Transformers, Motor Terminal Boxes, Isolators, Busducts and Cable Joints.

The Laboratory provides a powerful support to our efforts in product development, improvement, cost reduction, performance up gradation and import substitution of components.

The LVHP Laboratory is administered as an "Autonomous Institution", and a Strategic Unit of the TECHNOLOGY GROUP. Hence Tests and Certifications carried out in the Laboratory are widely recognised not only in Crompton Greaves Limited but also in the Electrical Industry.

Single Line Diagram Of Main Equipment In The Short Circuit Laboratory

  • 22kV master circuit breaker
  • 22 kV isolator cum earth switch panel
  • Short circuit testing transformer
  • LT terminals of short circuit testing transformer
  • LV Arrester
  • LV Earth switch
  • LV Backup circuit breaker
  • Make switch
  • Current limiting reactors
  • Resistors
  • Apparatus under test
  • Current measuring shunts
  • Current and voltage measurement through UV Oscillograph recorder Or computer data acquisition system