Supply, Installation, Commissioning and Testing of Numerical Feeder Protection Relay (Make- ABB,L and T ,General Electric/ Siemens/Schneider Electric) in Unit No. 5 and 6 2x250MWParichha

Numerical Protection Relay for LT Incomer feeder, Outgoing Feeder and Bus coupler with Auxiliary supply 48-240V AC/DC, Incomer Range 800-4000 Amp, communication on IEC 61850. Following Protection required:- 1.Under Voltage, 2.Over Voltage, 3.Short circuit, 4.Overcurrent, 5.Earth fault, 6.Restricted Earth F, 7.Circuit Breaker Failure. Other feature required: - 1. Relay self monitoring & diagnostics. 2. Trip Circuit supervision. 3. Event log, Fault History with date & time at least previous 10 fault. 4.Check synch. 5.16 B Input/8 B Output 6.all function and display of Human machine Interface (HMI) shall be remotely accessible. 7.Access to protection setting mode shall be protected by a password that can be personalized by the user. 8.The device shall support a webserver/web HMI. 9.The device shall support virtual simulation through which protection functions and logic testing can be achieved without any separate software or secondary injection kit. 10. Nos. of Voltage I/P required=04 11. Nos. of Current I/P required=04 Make:-ABB/Larsen & Toubro/General Electric/Siemens/Schneider Electric.

Installation, Testing and Commissioning of Numerical feeder Protection Relay.