GENERATOR SYNCHRONISING RELAY .
It must consist in a numerical synchronizing relay which measures voltage and frequency of two inputs; the voltage, frequency and phase angle of the Generator input (G) must be individually compared with those of the Bus input (B) considered as reference. Functions: • Automatic Synchronization and Synchro-check
• Fast proportional Voltage and Frequency regulation
• Phase displacement checking with circuit breaker closing time control
• Anti-motoring
• Kicker pulse
• Event Recording
• Modbus Communication Protocol
Synchronizing of the generator with the reference bus
• Normal/Dead Bus operation modes Adjustable Operate time delay
• Adjustable Max Voltage difference Anti-motoring control
• Automatic Adjusting of phase angle for circuit breaker close
• Adjustable Max Frequency difference
• Adjustable Max Phase displacement
• Adjustable Increase/Decrease pulses to speed regulator
• Adjustable Increase/Decrease pulses to voltage regulator
• Adjustable Min/Max Bus voltage for synchronizing operation
• Adjustable Min/Max Bus frequency for synchronizing operation
• Kicker pulse control on steady phase displacement
• Fast synchronization with control pulses proportional to speed and voltage difference
3 Digital Inputs optically isolated 2kV, Electrical Power Engineering Laboratory