Procurement of Prok DV Earth Leakage Relays and Core Balance Current Transformers for Koodankulam Nuclear Power Plant

This tender, identified by Bid Number GEM/2026/B/7901600, is issued by the Nuclear Power Corporation of India Limited, an organization under the Department of Atomic Energy, for the procurement of Prok DV make Earth Leakage Relays (ELRs) and associated Core Balance Current Transformers (CBCTs). The bid submission period commences on November 3, 2026, at 2:00 PM and concludes on November 5, 2026, at 11:00 AM. The procurement will be conducted for a total quantity of 30 units, with specific technical specifications for the ELRs including an auxiliary supply range of 85-275V AC or DC, 2 C/O contacts, adjustable trip settings from 30-3000mA, and trip times between 0.15-3 seconds, all designed for flush mounting as detailed in Annexure-1A. Additionally, the tender includes the supply of Prok DV make CBCTs with various inner diameters (150mm, 65mm, 100mm, and 40mm), all featuring epoxy resin casting and insulation suitable for the aforementioned ELRs, also as per Annexure-1A. The delivery location for these critical components is at Koodankulam Radhapuram Taluk, Tirunelveli District, Tamil Nadu (PIN 627106).