Voltage Alarm Indicator (VIA) The VIA has been designed specifically for Ground Fault Indication on Wye or Delta-connected, three-phase, three-wire, resistance grounded or ungrounded power systems. It may be used on systems between 120 volts or 600 volts (up to 690 without CSA approval) or up to any voltage with the use of 120 volts or 240.. The ELU96N3 is designed for use in conjunction with KPM161x, or as an individual Phase Ground Fault Lights. Normally the three LED's will be at full brilliance. When an earth fault is indicated on the KPM161x then the fault will be identified by a dim LED when the test button is operated. The ELU96N3 can be used on systems up to 690V AC.
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In this video, we talk about how a ground fault indicator system works in a Delta system.To learn more about 3 phase go to:https://www.theelectricacademy.com.. The PGR-3100 is a self-powered ground-fault indication system. Presence of phase-to-ground voltage is indicated by redundant LEDs (two per phase). The respective phase LEDs are off when phase-to-ground voltage is less than 25 Vac for L terminals, and less than 40 Vac for H terminals. The PGR-3100 meets the National Electrical Code requirements.
