Automatic Transfer Switches CTG, CTGD Series Caterpillar

Transfer Switch - Test

Usage:

ATS TSA

A manual operator handle is provided with the transfer switch. The manual operator handle is intended only to be used for maintenance. Manual operation of the switch must be checked before the switch is operated electrically. Both power sources must be disconnected before manual operation of the switch.

Insert the manual operator handle.

Operate the switch between the NORMAL and EMERGENCY positions.
The transfer switch should operate smoothly without binding.

Return the switch to the NORMAL position.

Remove the manual operator handle, and return the manual operator handle to the holder that is provided.

Close the cabinet door.

Close the circuit breaker for each power source.

Initiate the electrical transfer test by activating the "TS" test switch.
The engine start timer will time out and the controller will send an engine start signal. When the delay for the transfer to the emergency power source has elapsed, the switch will complete the transfer by closing into the emergency power source.

In order to start the transfer back to the normal power source, deactivate the "TS" test switch.
The transfer switch will complete the transfer back to the normal power source after the delay for the transfer to the normal power source has elapsed. The engine overrun timer allows the generator set to run without a load for a preset cool down period.