| 摘要 |
<p>Disclosed is a zone selective interlocking (ZS1) system for circuit breakers using electrical power lines. The system, using power line communication, transfers a ZSI signal on an existing power grid hence minimizing the wired network. The power line communication transfers the signal using high frequency hence it does not interfere with the circuit breakers existing signals to maintain the synchronization between upstream and downstream circuit breakers.</p> |
