Operation and Maintenance of PS III to V of JNVLC

SITC of 33KV, 1250 A, STC 25 KA Outdoor Porcelain clad VCB with all accessories including steel structure base ,concrete foundation as per site requirement confirming to relevant IS code with latest amendments ,

SITC of 40Amp ,30V DC Fully automatic as well as manual Float and Float cum boost SMPS based Battery charger for input voltage 230V, including minimum 3 Nos Outgoing Feeders with MCB, annunciation circuit with hooter for Battery disconnection/failure, DC under/Over voltage, Fuse failure, Charger failure, Overload trip, Potentiometers to adjust DC output voltage and current in respective modes, Ampere meter, Voltmeter ,Solid state automatic load voltage regulator, Accept/Reset push button, Indications and complete with all accessories as per specification and approved make.

S I T C of Copper wound Power Transformer conforming to IS: 2026 with latest amendments and Losses as per ISI of rating 33/6.6 KV ONAN type, Delta-Star Connected, Vector Group Dyn 11, 50 Hz frequency, standard accessories like conservator, silica gel breather, radiator, fins, HT bushing and LT cable boxes, Off/On -LTC (+/- 7.5 percent in steps of 2.5 percent) winding/oil temperature rise of 50/55 C, ISI marked drain valve, Dial type Temperature gauge, first fill of oil, Epoxy based paint, including carrying of third party inspection, erection,Testing, commissioning , trial run and one year defect liability. 1500 KVA

Supply of Numerical Motor protection relay consisting of various functions for various over current and earth fault protection, Negative Phase Sequence Protection, Phase Reversal Detection, Thermal overload Protection, Locked rotor/Motor stall, Breaker Failure Protection,Undervoltage, Overvoltage protection, Trip circuit supervision etc and other protective functions as per specification .coil voltage as per requirement

Supply of UNDER VOLTAGE RELAY for protection against Over Voltage, Zero/Negative/positive sequence Over Voltage, Under Voltage, Phase Sequence, Phase Reverse, Phase Failure

Supply of 3 O/C and 1 E/F Numerical Type IDMT RELAY for over current and earth fault protection