- Assurance Monitoring System
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A Cutsforth product which monitors shaft voltages and shaft currents to provide real-time data locally and data outputs for integration into a DCS or historian.
- DC average
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The average of the DC component measurements during a sample period as calculated by ΣX/n, where X is the array of samples acquired and n is the number of samples.
- ground conductor
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8 AWG, green ground conductor that carries the shaft current to the unit case ground location.
- ground current
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The electrical current between the shaft and the unit case ground through the ground conductor.
- ground rope
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The left rope in the Shaft Grounding Assembly, which provides the primary path to unit case ground through the 8AWG ground conductor.
- meter rope
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The right rope in the Shaft Grounding Assembly which provides a shaft contact point at which shaft voltage readings are taken.
- oscilloscope resolution
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A measurement that describes the granularity of a waveform (like the resolution of a photograph).
- Shaft Grounding Assembly (SGA)
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A Cutsforth product designed to provide a best-in-class ground connection, as well as a shaft contact point at which shaft voltage can be measured.
- shaft voltage
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The voltage potential between the shaft and the unit case ground as measured by the metering rope.
- signal cable
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Shielded cable that carries the voltage signals from the SGA and the SCA to the monitoring system.
- unit case ground
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The lower half of the turbine case, generator case, or coupler case near the Shaft Grounding Assembly to which the shaft can be grounded.
- zero-to-peak
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A measurement of a signal calculated by |max(x)| or |min(x)|, whichever is greater, during a given period of time, where x is the array of samples acquired during that period.
A Cutsforth product which monitors shaft voltages and shaft currents to provide real-time data locally and data outputs for integration into a DCS or historian.
The reduction of the amplitude of a signal due to excessive cable length.
American Wire Gauge
The average of the DC component measurements during a sample period as calculated by ΣX/n, where X is the array of samples acquired and n is the number of samples.
Distributed Control System
8 AWG, green ground conductor that carries the shaft current to the unit case ground location.
The electrical current between the shaft and the unit case ground through the ground conductor.
The left rope in the Shaft Grounding Assembly, which provides the primary path to unit case ground through the 8AWG ground conductor.
The resistance to change in the current of a circuit.
Lockout/Tagout
The right rope in the Shaft Grounding Assembly which provides a shaft contact point at which shaft voltage readings are taken.
A measurement that describes the granularity of a waveform (like the resolution of a photograph).
A Cutsforth product designed to provide a best-in-class ground connection, as well as a shaft contact point at which shaft voltage can be measured.
The voltage potential between the shaft and the unit case ground as measured by the metering rope.
Shielded cable that carries the voltage signals from the SGA and the SCA to the monitoring system.
The equipment monitored by the Cutsforth monitoring system.
The lower half of the turbine case, generator case, or coupler case near the Shaft Grounding Assembly to which the shaft can be grounded.
A measurement of a signal calculated by |max(x)| or |min(x)|, whichever is greater, during a given period of time, where x is the array of samples acquired during that period.