What is NERC Compliance?
NERC was established to create policies to help ensure the reliability of the bulk power generated in North America. The NERC policies provide guidelines for reporting machine availability, generator system testing and verification of models and performance of synchronous machines.
Standards are either currently in place or are being developed by regional councils to meet North American Electric Reliability Corporation (NERC) standards, requiring baseline and periodic (every 5 years) testing and verification of power plant models for units greater than 10 MVA.
Basler Services provides NERC compliance testing of generator control, protection and excitation systems including:
Onsite Data Collection, Testing, and Validation
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- NERC Submittal Reports and Studies
- Dynamic Model and Power Flow Data Models
Power System Stabilizer Commissioning and Tuning
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- AVR Response and Limited Testing
- AVR/PSS Equipment Retrofits
Mod Standards | Generator Capability and Model Verification
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- MOD-025 (Capability Verification)
- MOD-026 & MOD-027 (Dynamic Model Validation)
- MOD-032 (Data for System Modeling)
Maximize your generator’s performance and grid stability. From precision Power System Stabilizer tuning to complete AVR equipment retrofits, we keep your voltage regulated and secure. Compliance with NERC’s MOD standards ensures accurate power systems simulations.
PRC Standards | Protection and Control Coordination
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- PRC-019 (Voltage Control Coordination)
- PRC-024 (Frequency & Voltage Ride-Through)
- PRC-005 (Protection System Maintenance)
Protection Relaying
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- Protection Settings
- Testing and Calibration
- Protection Equipment Retrofits
NERC compliance testing includes the following general work scope:
- Testing of the auto voltage regulator
- Tuning & step response of AVR
- Tuning & dynamic performance testing of all limiters (Overexcitation, underexcitation, volts per hertz, etc.)
- System model verification test
- Saturation curve tests to determine air gap saturation characteristics
- Unit trip with 0 MW / 20% leading VARs in AVR mode to determine excitation system parameters
- Unit trip in manual VR mode to estimate internal unit reactance
- Generator trip @ 10% MW to determine inertia constant and governor performance
- Online verification of generator leading & lagging reactive capability
- Calibration testing of protective relays
- Tuning & testing of the power system stabilizer
- Report prep for submittal to NERC
Contact Basler Services to discuss the NERC compliance testing needs for your generating system. We perform these engineering services independent of all system equipment manufacturers. References provided upon request.
NERC Required Information:
- Unit reactive capability
- Excitation system model
- Generator characteristics
- Operation & model of excitation limiters
- Calibration & coordination of generator protection relays
- Automatic voltage regulator control
- Operation & model of power system stabilizers
- Governor droop & deadband
