The generator withstands large frequency disturbances, and high rates of change of frequency, without tripping. No. Load Frequency Estimated Hold Step Level Injection response for a with a 4 % minimum droop of -0.5Hz 1 100% 0% 10 minutes (ramp of 2Hz/sec) +0.5Hz 2 100% -25% 10 minutes (ramp of 2Hz/sec) -0.5Hz (ramp of 1Hz/sec) +25% 3 75% Hold for 1sec 10 minutes -50% +1Hz (ramp of 1Hz/sec) -0.5Hz 4 75% +25% 10 minutes (ramp of 2Hz/sec) +0.5Hz (ramp of 1Hz/sec) -25% 5 75% Hold for 1sec 10 minutes +50% -1Hz (ramp of 1Hz/sec) +0.5Hz 6 75% -25% 10 minutes (ramp of 2Hz/sec) Min -0.5Hz 7 +25% 10 minutes load (ramp of 2Hz/sec) Min +0.5Hz 8 0% 10 minutes load (ramp of 2Hz/sec) All of the following trends and screenshots must be recorded by the Unit during the test. Failure to provide any of these trends will result in test cancellation. No. Signal Name Sample Rate Source Active Power at Connection Point Unit to specify, 100ms or as 1 Unit to specify (MW) agreed with TSO Reactive Power at Connection Unit to specify, 100ms or as 2 Unit to specify Point (Mvar) agreed with TSO Unit to specify, 100ms or as 3 Active Power at Generator (MW) Unit to specify agreed with TSO Unit to specify, 100ms or as 4 Reactive at Generator (Mvar) Unit to specify agreed with TSO Generator Circuit Breaker position 5 Unit to specify, Unit to specify (Open / Closed) Unit to specify, 100ms or as 6 Generator Voltage (kV) Unit to specify agreed with TSO
The generator withstands large frequency disturbances, and high rates of change of frequency, without tripping. No. Load Level Frequency Injection Estimated response with a 4 % droop Hold Step for a minimum of 1 100% -0.5Hz (ramp of 2Hz/sec) 0% 10 minutes 2 100% +0.5Hz (ramp of 2Hz/sec) -25% 10 minutes 3 75% -0.5Hz (ramp of 1Hz/sec) Hold for 1sec +1Hz (ramp of 1Hz/sec) +25% -50% 10 minutes 4 75% -0.5Hz (ramp of 2Hz/sec) +25% 10 minutes 5 75% +0.5Hz (ramp of 1Hz/sec) Hold for 1sec -1Hz (ramp of 1Hz/sec) -25% +50% 10 minutes 6 75% +0.5Hz (ramp of 2Hz/sec) -25% 10 minutes 7 Min load -0.5Hz (ramp of 2Hz/sec) +25% 10 minutes 8 Min load +0.5Hz (ramp of 2Hz/sec) 0% 10 minutes All of the following trends and screenshots must be recorded by the Unit during the test. Failure to provide any of these trends will result in test cancellation. No. Signal Name Sample Rate Source 1 Active Power at Connection Point (MW) Unit to specify, 100ms or as agreed with TSO Unit to specify 2 Reactive Power at Connection Point (Mvar) Unit to specify, 100ms or as agreed with TSO Unit to specify 3 Active Power at Generator (MW) Unit to specify, 100ms or as agreed with TSO Unit to specify 4 Reactive at Generator (Mvar) Unit to specify, 100ms or as agreed with TSO Unit to specify 5 Generator Circuit Breaker position (Open / Closed) Unit to specify, Unit to specify 6 Generator Voltage (kV) Unit to specify, 100ms or as agreed with TSO Unit to specify