Comprehensive Generator Protection
Numerous current, voltage, frequency, and distance elements provide comprehensive protection for large and small machines.
One Hundred Percent Stator Ground Fault Protection
One hundred percent stator ground fault protection using both fundamental frequency overvoltage and third-harmonic voltage differential elements to protect high-impedance grounded generators.
Current Differential Protection
Optional current differential elements to optimize protection for larger machines, yet economical enough for smaller machines. Phase shift and magnitude difference compensation for current differential applications that include generator step-up transformers. Current differential option includes individual phase overcurrent elements for split-phase differential protection applications.
Out-of-Step Protection
Offers a choice of single- or double-blinder scheme to detect the loss of synchronism condition.
Overexcitation Detection
Volts-per-hertz elements detect overexcitation in both the generator and step-up transformer. Choose from multiple curves and definite-time elements for alarm and tripping applications.
Directional Power Elements
Sensitive directional power elements protect against reverse power, overload conditions, or low forward power.
RTD-Based Protection
Optional thermal protection elements work in conjunction with the SEL-2600A RTD Module.
Metering and Reporting
Event reporting, Sequential Events Recorder (SER) reporting, and high-accuracy metering eliminate or reduce external metering requirements.
acSELerator QuickSet® SEL-5030 Software
Helps speed relay application by allowing you to develop relay settings off-line, program SELOGIC control equations, and analyze post-fault event reports.
Provide Secure Remote Control and Monitoring
Use Modbus®, ASCII, and SEL Fast SER capabilities for control, monitoring, and alarm purposes.

HOTPASH

SEL-300G Generator Relay