Any LED system should be able to appropriately track overvoltage, undervoltage, short circuit, open circuit, and thermal runaway conditions.
任何LED系统都应当能够适度跟踪过高、欠压、短路、开路和热逃逸等问题。
2
Relays are the logic elements of a protection system which sense the fault and cause the circuit-breaker trip circuits to be energized and the breakers to open their contacts.
继电器是保护系统的逻辑元件，它感知故障，并使断路器解扣电路带电和断路器打开触点。
3
Aiming at developing problem of test system for circuit board for large scale and complicated electronic equipment, the open model was presented.