Electrical System SGR
Standby Power Switch

Standby Power switch  AUTO

(Guarded position)

  • The Standby Power switch controls automatic switching of the
    power source to the AC and DC Standby Busses.

  • With the switch in the AUTO (Guarded) position and both AC
    Transfer Busses powered, the normal source of power to the AC
    Standby Bus is Transfer Bus 1 and the normal source of power to
    the DC Standby Bus is TR 1, TR 2 and TR 3.

  • If the Transfer Busses are not powered, the source of power to
    the AC and DC Standby Busses is automatically switched to the
    Static Inverter, Battery Bus, Hot Battery Bus,Switched Hot Battery
    Bus and Battery.