Hi All,
We have 600 MW power generator. Two days ago when our power is 150 MW, our DC excitation circuit breaker is suddenly open, and our unit is not tripped. Our output power was still 120-130 MW, so we can produce MW without excitation and then we stopped unit by manual.
When our loss of excitation our reactive power went up 390 Mvar and our excitation system limited this value.
Could you help me? How can be possible, we can produce MW without excitation system?
We have 600 MW power generator. Two days ago when our power is 150 MW, our DC excitation circuit breaker is suddenly open, and our unit is not tripped. Our output power was still 120-130 MW, so we can produce MW without excitation and then we stopped unit by manual.
When our loss of excitation our reactive power went up 390 Mvar and our excitation system limited this value.
Could you help me? How can be possible, we can produce MW without excitation system?