Major Interlocks Sample Clauses

Major Interlocks. The major generator and transformer electrical equipment interlocks include the following: The generator breaker cannot be closed unless the excitation system breaker is closed. The excitation system breaker cannot be tripped by control switch unless the generator breaker is open. When both main power transformer high side breakers are open, neither can be closed unless its respective generator breaker is open. When only one main power transformer breaker is closed it cannot be opened until its respective generator breaker is opened.