RELAY SYSTEM

摘要

A relay system includes a plurality of relays that is provided between a power supply unit supplying electric power and a load acting by receiving the electric power supplied from the power supply unit to switch between conduction and interruption of the electric power supplied from the power supply unit to the load, each of the relays having an exciting coil, a control unit that controls switching between application of current to the exciting coils and interruption of the current, first switches that separately excite the exciting coils, and a second switch that is connected between the exciting coils. The control unit controls turning on and off the first switches and the second switch to switch the exciting coils between parallel connection and series connection.

主权项

1. A relay system, comprising:
a plurality of relays that is provided between a power supply unit supplying electric power and a load acting by receiving the electric power supplied from the power supply unit to switch between conduction and interruption of the electric power supplied from the power supply unit to the load, the relays having respective exciting coils; a control unit that controls switching between application of current to the exciting coils and interruption of the current; first switches that separately excite the exciting coils; and a second switch that is connected between the exciting coils, wherein the control unit controls turning on and off the first switches and the second switch to switch the exciting coils between parallel connection and series connection.