GAS-BLAST LAST CIRCUIT-BREAKING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a gas-blast circuit-breaking device to delay cutoff when a demander uses a gas apparatus when lowering of a battery voltage is detected and a feed of gas is about to stop, and stops the use of the gas apparatus.;SOLUTION: When lowering of the voltage of a battery source means 2 is detected by a voltage detecting means 10, a time elapsing after lowering is measured by a time measuring means 12 and after a lapse of a given time, a cutoff signal is outputted but when a flow rate indicating a use is detected, a cutoff signal is delayed by a cutoff signal delay means 16 and when a flow rate stops, a cutoff signal is outputted to stop a feed of gas. This constitution prevents gas from being suddenly cut off during the use of gas and improves facility and safety.;COPYRIGHT: (C)2001,JPO