Generator Application Studies

Mitigate Adverse Conditions

The purpose of a Generator Application Study is to identify and mitigate power system load, design and operation factors that may adversely impact the reliability and integrity of their new turbine-generator sets. Many times new power plant designers/owners are unaware of dangers that lurk in the system to which they are connecting.

You can use the data from this study to confirm whether or not operating conditions will adversely affect generator reliability. In cases where unfavorable conditions exist, GE can assist you in developing a plan for mitigating adverse conditions before substantial capital investments are made in the site.

Example Customer Request

A power developer is considering building a power plant in a large industrial area where there are modern steel mills. They developer asks, "Should we be concerned about the integrity of our generating units in that environment? Are there other system issues that we should study?" The objectives of the engagement are to identify and characterize system issues that may impact turbine-generator reliability and to perform screening level evaluations to determine if these issues may be dismissed, or warrant further detailed study.

Work Scope

1. Identify and characterize potential system issues (with interconnection utility):

  • Loads: steel mills, large rolling mills, large rectifier loads, large repetitive impact loads
  • System design: series capacitors, large SVCs, HVDC terminals, FACTS devices
  • System operation: reclosing of circuit breakers, single-pole switching, etc.

2. Perform applicable screening studies of identified issues:

  • Impact load torsional analysis
  • Subsynchronous resonanace (SSR)
  • Generator rotor iron and stator heating effects
  • Subsynchronous torsional interaction

3. Issue report, including recommendations for detailed study if required

Typical Data Requirements

System load, design and operating data via survey and interview with the interconnection utility.

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