The NewElec GA Plus Earth Leakage relay provides earth leakage protection also known as ground fault protection designed to protect personnel and equipment by rapid disconnection of main supply to faulted equipment.

A unique feature is the integrated distinguishing between Earth leakage and Earth fault routing trips to incoming circuit breaker rather than the fault level limited main circuit contactor.

Pioneers of the harmonic suppression circuit characteristics, the GA Plus Earth Leakage protection relay enables more sensitive earth leakage protection of high kilowatt motors started direct-on-line as well as variable speed drive applications without nuisance tripping, this is achieved utilizing band pass filters as well as incorporation of a screen winding on the CBCT to ensure even flux distribution under high starting current conditions.

The GA Plus comes fitted with an integrated earth leakage test push button connected to the test winding on the CBCT allowing one to test functionality of GA Plus and trip circuits a rear accessed RS232 interface allowing customers to configure output trip relay configuration options, including latched or non-latching main trip contact, Fail-safe or Non Fail safe options, as well as 110V-220V or 380V-525V A.C. auxiliary supply voltages.

The trip contact current rating is a sturdy 6A at 220V and 3A at 525V A.C. A latched ‘contactor trip’ change-over contact can only be reset by pressing the control panel mounted push button.

Sensitivities range from 30mA to 1000mA with user selectable instantaneous or IDMT curve selection while using the same earth leakage core.

The settings on the relay can be adjusted via a laptop and the configuration software provided.

Configurable Settings:

  • Model Number
  • Trip Level (30mA – 1000mA)
  • Trip Curve
  • Instantaneous
  • IDMT
  • Output Contacts
  • Fail Safe / Non-Fail Safe
  • Latching / Non-Latching
  • Time Delay (100 – 2000ms)

Newelec
Tel. +27 12 327-1729
info@newelec.co.za

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