Murphy - ELD4

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Contents

M 060501 Issue 4 revised 09 98 Catalogue section 75 MODEX AUTOMATION The Generator Controls Division of FRANK W 5 murphi ELD series EARTH LEAKAGE DETECTOR UNITS A range of versatile and economical earth leakage detection relays Each unit is housed in a robust glass filled nylon case an aperture in the casing allows the installation cabling to be passed through the integral core balance transformer The electronic circuitry combines a stable amplification of the transformer output with an ability to give high sensitivity and fast operating speeds Detection of an earth fault results in the energisation and latching of the unit s SPCO relay The unit is reset by momentarily removing the auxiliary supply Protection from excessive fault ...