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T-34C AIRCRAFT SYSTEMS FAMILIARIZATION
CHAPTER NINE
WORKBOOK
CHANGE 1
Figure 9-2 AC Power System
Inverters
An inverter changes DC power to AC power. The inverters in the T-34C are located on the deck
on the left side of the front cockpit. Each inverter operates independently to receive DC power
and change it to 26 VAC and 115 VAC. Selection of the inverter is provided by a switch labeled
No. 1, INV, No. 2, located on the electrical control panel in each cockpit. The switch selects
either inverter for operation. Failure of the operating inverter is identified by illumination of the
flashing MASTER CAUTION light and the INVERTER fault light in each cockpit.
906.
COMMAND CONTROL TRANSFER SYSTEM
A momentary actuated toggle switch located on the electrical control panel in both cockpits
allows either pilot to take control of the AC and DC power supply systems. The switch is
labeled TAKE COMMAND and CONT TRANS, and is spring-loaded to the CONT TRANS
position. To transfer control from one cockpit to the other, the toggle switch is momentarily held
to the TAKE COMMAND position. Command of the system is verified by illumination of the
green command light.
A green press-to-test command indicator light, located next to the control transfer switch,
indicates possession of electrical command when illuminated. The light has a rotate-to-dim
feature which allows the pilot to regulate light intensity. The press-to-test function provides a
check of the light bulb in the indicator.
ELECTRICAL POWER SYSTEMS 9-7


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