Scope:
The Earth Leakage Detector monitors the insulation resistance of a non-earthed Single or Three Phase AC & DC networks. It can monitor four different AC or DC supplies. Insulation faults are also detected in a network with loads fed via rectifiers or thyristors.
The ELD has been designed for preventive maintenance of system insulation by monitoring its ‘On-Line’ condition. It monitors and reads the insulation of all the cables and loads connected with power supply AC or DC (Busbar) in the form of leakage resistance. It measures ‘On-line insulation’ (Leakage Resistance) directly on to an LCD meter. Whenever leakage resistance of the connected network goes below the set value it gives audio & visual alarm thereby preventing failures due to earth fault.
The Earth Leakage Detector also measures actual value of the insulation resistance of the signalling circuit during un-energised (OFF-Line) condition through a built-in Cable insulation tester.
