Startco Earth Continuity Relay

We are a specialist electrical protection company servicing the heavy industrial and mining sectors throughout australia.

Startco earth continuity relay. This is achieved when all ground fault relays on the system trip at the same level with those. The rob earth continuity relay has been designed to as 2081 2 1988 to monitor the earth continuity of a trailing cable in an underground mining operation. Relay coordination time selective coordination. Ampcontrol remains at the top of the field for innovation in earth continuity protection relay design.

The relay is housed in a sprecher schuh enclosure with three led indicators. When short circuit between the pilot and earth cores in the trailing cable completes the circuit through the operating relay and if the pilot circuit were not to fail to safety such a fault would cause the motor to start immediately. Since ground fault current is controlled to a level that will reduce fault damage and an arc flash will not occur time selective coordination can be employed. We took a fresh look at earth continuity safety and as nzs2081 compliance to design a new method of earth continuity protection that utilises a trip curve to discriminate between earth disconnection faults and incremental increases in the earth return impedance.

When you use our website we collect personal data about you and your use of the website through cookies and analytics tools. As little as 5 ma of ground fault current can be detected and the internal neutral grounding resistor limits the maximum ground fault current to 100 ma. The relay has been approved to be intrinsically safe and is suitable for use in zone 1 or 2 hazardous areas. Startco pty ltd is an australian owned company in incorporated in 2000 and based in noosaville queensland australia.

In fact if the motor was running it would become impossible to stop it using the pilot switch.