Power house introduces solid-state single-card which is used ffor automation of dg sets power house introduces solid-state single-card these single cards are compact and easy to operate auto mains failure [amf] relay. Following are some of the technical features which include:it monitors mains supply voltage, transfer of load on dg set and vice versa, auto stop of dg set and other allied functions automatically. Power house amf relay has built-in three-phase voltage monitor, time delay circuits, starting attempts on and off delay timers, counters, failure indicators, logic controllers, stop solenoid, fuel solenoid, and timers. This single card relay replaces aan array of different timers, monitors, contactors and problems associated with interconnection and loose connections are replaced by this single card relay. With optocoupler isolators for all high voltage incoming supply, and electromechanical relays for output connection made with matching electronics circuitry make it reliable and unaffected by any spikes and unwanted signals. Amf relay is manufactured for the control part only. This amf relay and is suitable for a wide range of dg sets irrespective of kva ratings of dg sets. To match different engine/load characteristics, ffor load handling at different levels, suitable relays and load contactors are to be incorporated to match different engine/load characteristics.
