2006-12-03 07:47:40 · 3 answers · asked by fredrico 1 in Science & Mathematics ➔ Engineering
This could be done with a latching relay, which requires input power to stay latched and transmit input power. If there is a drop in line voltage, the spring loading in the relay will over come the lower output of the electromagnet in the relay and will open the contacts.
2006-12-03 07:58:59 · answer #1 · answered by www.HaysEngineering.com 4 · 0⤊ 0⤋
If you are talking about a single AC generator and one or more loads you can't stop the generator without losing power to the loads. Your electric power company operates a number of generators and is probably interconnected to the national grid (which is more generators and loads). With multiple generators operating in parallel the speed control of the off going generator is used to shift the load from the generator to be stopped to the remaining generators. While there is still a minimum load on the set to be stopped it's output breaker is opened to disconnect it from the system.
2006-12-04 17:48:11 · answer #2 · answered by ssn591exnuke 3 · 0⤊ 0⤋
you want the generator output breaker to trip at a specified low frequency and/or low voltage.
2006-12-03 16:00:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋