1. Cutsforth Support
  2. Shaft Ground Monitoring: Premium Monitoring | Series 1 & 2
  3. Installation Planning Guide – Shaft Ground Monitoring Premium – EZDP-2040

Frequently Asked Questions

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What is the best way to mount the Premium Monitoring System?

The monitoring system is typically mounted using a Unistrut® frame as shown below.

CMS-Mounting-Location.JPG

How much power does the Premium Monitoring System require during normal operation?

The monitoring system requires an AC supply voltage of 120V 5A. The monitoring system has an internal breaker rated at 5A, so any typical dedicated 15- or 20-amp circuit is more than adequate. If it is shared on a circuit with other devices, the plant should plan to dedicate 600 Watts for this device.

The actual power draw of the monitoring system is typically around 0.5A at 120V AC during normal operation.

What shaft voltage and ground current values should we expect to see on our generator?

This question would be best answered by the generator manufacturer.

We suggest focusing on the trending of data more than the specific voltage and current values. For example: Are the values changing over time? Are the changes significant? How are they changing?

To what values should we set our alarm thresholds?

Plants often elect to have their threshold settings align with their acceptance criteria, which:

  • Is provided by the generator manufacturer

  • Is unique to each generator

  • Should ultimately be determined by the plant.

The Premium Monitoring System comes from the factory with thresholds intentionally set to a level at which an alarm will never trigger. These thresholds are used so that plant personnel do not mistake the factory settings as being applicable to their generator.

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