An NVR (No-Volt Relay) panel is designed to disconnect a solar plant or consumer electrical installation from the utility grid when the DISCOM supply fails, a phase is lost, abnormal voltage conditions occur, or power flows in the reverse direction. This helps prevent back-feeding of solar generation into the utility network and supports safe grid operation and compliance with applicable grid-connection and net-metering requirements.
Neo Hi Tech Power manufactures NVR panels from 32 A to 800 A, equipped with suitable under-voltage, over-voltage, phase-sequence, and reverse-power protection relays. Depending on the application, the panels can incorporate contactor or MCCB-based tripping arrangements along with automatic reclose functionality, providing reliable grid protection for solar and other distributed-generation systems.