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Engine Safety unitsare designed for the protection of DG sets in case of a fault or in case any ofthe safety installed on the DG sets trip. Safety potential free contacts ofLLOP HWT, LFL etc can be installed and used to stop the DG set. LLOP is sensedonly when DG voltage becomes healthy.
In case of a faultthe unit gives a signal to the stop solenoid for a prefixed time of 10-15 sec.Front facia LEDs glow simultaneously and a buzzer also sounds for the durationof the stop solenoid. Additional contact is provided for preventing start incase a fault has occurred. The start bypass can be cleared only by a reset onthe front facia.
Various models areavailable:
Normal ESU singlephase DG sensing for operation with external 40A external relays
ESU with 2 modulerelay card.
ESU with singlephase / 3phase DG connection
ESU with Mainssensing and shut down in case of mains healthy
These units can be used for fault annunciation and EngineProtection in any environment. Being Micro controlled and solid state digitalunits ratings are 24 hrs operation. These units are available as standard 4 way.