Enquiry for submission of offer for Supply of Non directional overcurrent / Earth fault relays under EHV PAC Division Karad.

MAHARASHTRA STATE ELECTRICITY TRANSMISSION CO. LTD. From, Office of the Executive Engineer EHV PAC Division, Vijaynagar -415110 Mobile: - 8411001439 E-mail: - [email protected]; Web Site:-www.mahatransco.in Ref No. EE/PAC/KRD/Tech/No. 155 Date:- 05.05.2026 E- Enquiry Sub:- Enquiry for submission of offer for Supply of Non directional overcurrent / Earth fault relays under EHV PAC Division Karad. ****** Dear Sir, Sealed and super scribed quotations are invited from the experienced agencies for the above said work on item rate basis, so as to reach the office of Executive Engineer, MSETCL, PAC Division, upto:- 12.05.2026 @ 17:00 Hrs. Schedule A Rate per Qty. Amount unit in Sr. No. Particulars in in Rs. Rs. (Excl Nos. (Incl Gst) Gst) Supply of Non directional overcurrent / Earth fault relays: - Make: - Any standard make (L&T/ C&S/ Siemens etc.) Rated secondary current: - 1A & 5A (dual rated) 03 Rated frequency: - 50 HZ ± HZ Auxiliary Power Supply: -24V to 240V AC/DC ± 15 % Relay setting: - Overcurrent: - 0.2 to 2.0 times* In in steps of 0.01In High set Overcurrent: - 1 to 40 times *In steps of 0.1- with time delay (0 to 60sec, step 10ms) Earth Fault: - 0.05 to 0.8 times in steps of 0.01 High set Earth Fault: - 0.1 to 20 Times in steps of 0.1- with time delay (0 to 60sec, step 10ms) 1 TMS: - 0.1 to 1.6 in steps of 0.01 Operating characteristic: - NI3, DT (1s,10s,100s) High set operating time: - less than 50 millisecond Pick up current: - same as set current Reset current: - 95% of pick up current Burden: - less than 0.25VA /Phase at CT inputs Separate LED for Power ON, Trip status for R, Y, B, &E Output Relay Contact: - 6 C/O contacts Overload capacity: - 2 times rates current continuously  & 20 times rates current for 1 sec. The relay should have dot matrix display with backlight on front panel to read various settings, on load values, last trip data etc. Features: - Up to 5 latest fault records, Up to 512 time tagged event records, Up to 5 latest disturbance records, self- supervision, Programmable contacts, Dust proof enclosure. Optional features: - Front USB communication, Relay should have LBB feature with separate contact for LBB bus trip. With following Functions: - Over Current Protection (50/51) Earth Fault Protection (50N/51N) Breaker Failure (50BF) Trip Circuit Supervision (95) Thermal overload (49) Broken conductor(46BC) Restricted earthfault(64R) USB Port Modbus/lEC 60870-5-103 (RS485) (or) DNP 3.0 (RS485) Programmable LED Digital input - 6 Digital output - 6 Total including GST Note: 1) Above rates are Incl. of GST @ 18%. 2) Please quote rates in % basis. 3) Schedule A for ready reference only Note Follo