Relays

SINGLE PHASING PREVENTORS (NON REVERSING)

Voltage sensing devices available for providing single phasing protection to motors if required.

CMRI certified and DGMS approved circuits for use in underground mines.
For continuous monitoring of insulation level in circuit with visual indication.
Can be preset to trip gate end box if insulation reaches certain level of deterioration

Choices available to suit your circuit in underground mine.
Types ELM 3, & 4, offer relays to trip at any preset value between 2-5 amps operated through CBT.
Leakage settings adjusted through external knob.
Type ELM 6 and ELM6LA is a sensitive relay for restricted systems operate at trip levels starting from 80 mA to 750 mA , or as required by client.
ELM6LA being the latchout version of the same relay
Time delay settings available between 10mili seconds to 1 second .
Time delays settings in these relays are achieved through adjustments done by internal solderable links.
Type ELM7D is a sensitive relay having dual ratings one, for restricted systems to operate at dual trip levels starting from
80 mA to 750 mA , or for solidly earthed systems to operate between 750mA to 2 Amps .
Time delay settings available between 10mili seconds to 1 second .
Time delays settings in these relays are achieved through adjustments done by internal solderable links.

Insulation monitoring with the circuit in de-energized condition, through intrinsically safe circuit current.
It senses and locks out the faulty circuit after initial trip, when circuit is reenergized.
Can be fitted on to either starters or gate end boxes.
Certified by the CMRI and approved by the DGMS.

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