To provide a setting method of an operation reference current value in which setting of the operation reference value can be carried out without entering a house with good workability and checking of whether or not the contract current value defined between an electric power company and a user is set correctly can be made easily.
The circuit breaker 1 carries out a prescribed time-limit characteristic control when a load current value of an electric path is larger compared with an operation reference current value. The operation reference current value of the circuit breaker is established by carrying out a step to input an operation reference current value information in a current value setting controller 302, a step to wireless transmit data including the reference current value information from an information transmission part, a step to receive the data including the reference current value information at the circuit breaker, and a step to obtain the reference current value information and store the reference current value in a predetermined storage region.
HAYASHI TADATAKA
HAMAI YASUNORI
KAMATA TAKESHI
| JP2003109475A | 2003-04-11 |
| WO2004093283A1 | 2004-10-28 |