Expelprosys

Testing & Commissioning
Services

Relay Testing

Testing of all kinds of relay through high-end numerical secondary injection kit of Doble, ISA, Omicron, Megger make | Programming of Numerical relay as per schematic drg. Testing of relays for feeder, motor, transformer, transmission line, Generators.

LV & MV SYSTEMS - 440V TO 33KV (MV AIS / GIS Switchboard, PCC, MCC, Bus Ducts)

Polarity & Primary injection of CT & PT | Secondary injection of Protective & Aux. relays | release-Contact Resistance Measurement | Timing of VCB | ACB | IR measurement | AC High Voltage Test | Vacuum check of VCB by VIDAR-Differential & REF scheme testing for sensitivity & stability Manual & Auto Transfer Scheme.

CONTROL & RELAY PANEL / GENERATOR PROTECTION & SYNC. PANEL

Secondary injection testing of Protective & Aux. Relays-Detailed Testing of Line Feeder / Trafo Feeder / Generator Protection relay by High-end Secondary injection kit for all protections available in the relay-Checking entire scheme such as AC / DC, closing, tripping, annunciator & metering circuit as per the approved drg. Checking of synchronization relay & interlocks as per approved drg.

EHV SYSTEM - 66KV TO 220 KV

Testing of LA | Isolator | CT | PT | Breaker | Transformer | CRP | Cable | Battery charger | RTCC panel | Interfacing of field equipment with control room-Distance | Bus Bar Differential | Line Differential | Transformer Differential & REF scheme testing-Remote operation of field equipment from CRP. (Special test- SFRA, Tan Delta, Leakage current of LA, DEW Point Measurement).

Testing of CPP Electrical System

Generator to be tested for Insulation Resistance & Polarization Index, Winding Resistance, Tan Delta Testing of LAVT | Testing of MV & LV panel | Testing of Generator Protection, metering & Sync. panel | Testing of MV cables.

Testing of Power & Distribution Transformer

Insulation Resistance (IR), Polarization Index (PI), Winding Resistance Testing, Ratio | Magnetic Balance; Vector Group; Excitation Current Measurement; Tan-delta Testing; Sweep Frequency Response Analysis (SFRA); Oil Testing; Dissolved Gas Analysis (DGA); Online Moisture Removal System; Functional Checking of WTI | OTI | PRV etc. from Marshalling Вох.
For more information about our products or to discuss your
specific requirements, please contact Expel Prosys Pvt Ltd today!
For more information about our products or to
discuss your specific requirements, please
contact Expel Prosys Pvt Ltd today!
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