| 摘要 |
The present invention relates to a system for automatically recording the state of power, having a separable sensor and, more specifically, to a system for automatically recording the state of power, having a separable sensor to allow a single power state recording system to be used for a plurality of sub-earth leakage circuit breakers with the use of a current sensor circuit comprising two inexpensive zero phase sequence current transformers and a single current transformer. According to the present invention, the system for automatically recording the state of power, having a separable sensor comprises: an earth leakage circuit breaker connected to a power input terminal; and a power state automatic recording device with a separable sensor to be joined to a space between loading devices connected to a power output terminal. The earth leakage circuit breaker comprises: a single main earth leakage circuit breaker to cut off main power supply by driving a trip driving part in accordance with a leakage current in a main power supply line; and a plurality of sub-earth leakage circuit breakers connected to a sub-power supply line branching from the main earth leakage circuit breaker to cut off sub-power supply by driving the trip driving part in accordance with a leakage current in the sub-power supply line. |
