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.
Toggle