| 摘要 |
The present invention relates to a panel board using a phase-coupled trip functional image harmonic filter, comprising: a main power circuit breaker which receives power transmitted from the outside; a branch circuit breaker which receives distributed power from the main power circuit breaker outputs the power or blocks the distributed power; a three-phase four-wire electric line which is connected to a secondary side output terminal of the main power circuit breaker and a primary side input terminal of the branch circuit breaker, and transfers the power of the main power circuit breaker to the branch circuit breaker; an image harmonic filter which has a zigzag transformer type and, an input terminal of which is connected to the three-phase four-wire electric line to reduce image harmonic components input from R-phase, S-phase, T-phase, and N-phase electric lines; a switch means which simultaneously connects or disconnects the R-phase, S-phase, and T-phase electric lines extending from a switchboard to an R-phase input terminal, an S-phase input terminal, and a T-phase input terminal of the image harmonic filter, respectively; and a switch means control unit which transmits, when the R-phase, S-phase, or T-phase power is phase-coupled, a control signal to the switch means to disconnect the R, S, and T-phase electric lines from the R-phase input terminal, the S-phase input terminal, and the T-phase input terminal of the image harmonic filter. |
