| 摘要 |
PURPOSE:To enable accurate reproduction of operating condition of a distribution system, by providing section indicating lights corresponding to respective distributing sections, switches corresponding to respective switchgears and relay coils corresponding to respective main contacts in a circuitbreaker. CONSTITUTION:When switches W2, W4 are opened, power is fed respectively from power supply systems Q1, Q2 and Q3 to distributing sections K1, K2, distributing sections K3, K4 and a distributing section K5. When a fault occurs in the section K2 and a switch F2 is closed, indication lights K1, K2, C3 go out to indicate interruption of a circuitbreaker through which power is fed to the section K2. When the switch F2 is closed under a condition where switches W1-W3 are all closed and the switch W4 is opened, both relay coils R1, R2 are excited to turn off the indication lights K1-K4 and C1, C2. |
