Common use of Automatic Reclosing Clause in Contracts

Automatic Reclosing. The need for automatic reclosing modifications is directed towards protection of the GPU System and the equipment of GPU Energy customers from potential damage. It is the Power Producer's responsibility to evaluate the potential effect of GPU Energy's reclosing practices on its generator and to provide suitable protection. GPU Energy normally provides automatic multiple shot reclosing with no intentional time delay on the first shot on all distribution line circuit breakers. Additionally, automatic sectionalizing for faults is provided on the distribution system with electronic and hydraulic reclosers that reclose in approximately 2 seconds following a trip operation. To protect both GPU Energy and GPU Energy customers' equipment from possible damage due to out-of-phase reclosing, the substation distribution line circuit breaker and the line reclosers may have to be modified, at the expense of the Power Producer, with voltage check relays unless the size and characteristics of the generator indicate that immediate reclosing would not be hazardous to the GPU System. These relays will block reclosing until the parallel generation on a line or line section is de-energized. Lines operated at 34.5 kV Delta and above also utilize multi-shot automatic reclosing with the first shot delayed approximately 20 cycles. Reclosing logic for these lines must be modified, at the expense of the Power Producer, to include synchronism checking.

Automatic Reclosing. The need for automatic reclosing modifications is directed towards protection of the GPU System and the equipment of GPU Energy customers from potential damage. It is the Power Producer's responsibility to evaluate the potential effect of GPU Energy's reclosing practices on its generator and to provide suitable protection. GPU Energy normally provides automatic multiple shot reclosing with no intentional time delay on the first shot on all distribution line circuit breakers. Additionally, automatic sectionalizing for faults is provided on the distribution system with electronic and hydraulic reclosers that reclose in approximately 2 seconds following a trip operation. To protect both GPU Energy and GPU Energy customers' equipment from possible damage due but to out-of-of phase reclosing, the substation distribution 100 line circuit breaker and the line reclosers may have to be modified, at the expense of the Power Producer, with voltage check relays unless the size and characteristics of the generator indicate that immediate reclosing would not be hazardous to the GPU System. These relays will block reclosing until the parallel generation on a line or line section is de-energized. Lines operated at 34.5 kV Delta and above also utilize multi-shot automatic reclosing with the first shot delayed approximately 20 cycles. Reclosing logic for these lines must be modified, at the expense of the Power Producer, to include synchronism checking.