Average or Peak-to-Peak Shaft Voltages or Grounding Currents Step Up

Related Products:

EGMA-004, EGMA-005, EGMA-006, EGMA-007, EGMA-008, EGMA-013, EGMA-015, EGMA-016, EGMA-019

Related Documents:

EZDP-2020 and EZDP-2038




Premium Monitoring System, Troubleshooting, Rope Faults


This article contains considerations to investigate a possible fault indication involving the shaft voltage or grounding current stepping up.

Average or Zero-to-Peak Shaft Voltages or Grounding Currents Step Up

Typically, shaft voltages on the generator operate in a somewhat consistent fashion and often increase or decrease in amplitude with generator output and other operating conditions. Soon after installing, you should note what normal readings are for your generator at different loads and other significant operating conditions. Knowing the difference between your generator's grounding system's readings at lowest and highest generator outputs helps you to fine tune your monitoring system's thresholds so that you are not triggering snapshots and alarms at levels that are potentially just normal periods of greater demand.

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