Manufacture, testing, supply and delivery of master trip and restricted earth fault relays for 11kv breakers and 66kv power transformers installed at various 66 kv substations

Supply of a numerical relay test kit with 4 convertible voltages and currents and 3 currents with licensed software suitable for testing numerical relays including iec 61850 compliant relays and with software modules for over current, advance distance, advance differential, advanced power (pole slip, power swing, field failure and backup impedance) along with supply and delivery of a laptop (pre-installed all necessary driving software for numerical relay test kit including product support software, windows 10/11 original os and with backup software) necessary to run the test kit at pjhes

Supply and installation of 42 kv lightning arrester (la) with accessories in system-i and modification of la installed in system-ii at various power supply installation (psi) in 2x25 kv ohe unit under cgm/ddu.

1. reliability improvement of signalling gears by replacement of defective cables, new battery charging, new point installation and replacement of worn-out signal posts, point machine components, codal life expired cpu & vdu s and dataloggers pc s, relays, tools and spares. 2. provision of class a surge protection and augmentation and reliability improvement of central datalogger system at vskp and reliability improvement of msdac and ips system components installed o

Hmi module for alstom micom relays

Biennial maintenance contract for micom areva alstom ge relays installed at switchyard substation grp and switchgears of ntpc bgtpp