GHM is a fully integrated and modular online, remote generator monitoring suite of modules available for any type of generator, that allows periodic or permanent assessment as well as the earliest identification of any evolving issues.
GHM supports the implementation of a cost-effective, condition-based generator maintenance strategy that increases a power plant's reliability and availability. It also allows improved outage planning and lifetime extension of the plant’s generators while optimizing maintenance planning.
Permanently installed generator monitoring sensors, including cabling and connection boxes.
GE’s periodical online generator monitoring service allows you to cost-effectively assess the condition of a power plant's generator.
It involves the installation of permanent generator monitoring sensors, followed by biannual measurements and an expert report, allowing you to make informed decisions about your planned maintenance.
With our continuous generator online monitoring suite, operators will benefit from on-site trending as well as comprehensive half-yearly reports including recommendations to mitigate any risk of failure and to improve outage planning.
For the highest level of assurance, we offer our remote generator monitoring system.
This remote generator monitoring system includes a permanent remote data link to the GE Remote Monitoring Center, allowing weekly checks as well as quarterly full reports, ensuring the earliest identification of any evolving issue.
The fully integrated generator monitoring system is a modular system with a user-friendly web-based interface. With one care box, instead of several standalone systems, any combination or all of the following power plant generator parameters can be monitored in real time to assess conditions and the need for maintenance:
Partial discharge module
Monitors the partial discharges continuously within the stator winding and bus duct.
Rotor flux module
Tracks rotor winding inter-turn short circuits and identifies the magnitude and slot location of the fault.
Rotor shaft voltage module
Detects failures in the rotor winding insulation, shaft grounding system and excitation issues.
End winding vibration module
Provides continuous monitoring of stator end winding vibration location and magnitude.
Temperature generator sensor module
Generator sensor constantly monitors the generator temperatures in line with operating conditions, trending deviations from design values.
The generator monitoring system is also designed to be operationally compatible with most sensors produced and installed by third-party manufacturers.
Stator Leakage Monitoring System
Detection of hydrogen leakage into stator cooling water system (for generators with a high oxygen regime).
Collector Health Monitoring
Detection of sparking at exciter collector and brush assemblies to provide early warning to avoid a collector flashover.
Our Generator Health Monitoring system for steam applications provides a comprehensive service to any operator to assess the health of the generator by supplying key information for condition-based maintenance and to help prevent unplanned downtime and losses.
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