TS 880 TRANSFER SWITCH
PM064 REV8 10/01/25 31 Thomson Technology
q All control devices are in good condition and correctly calibrated.
q All control devices are adequately secured in their plug-in fixtures
7.3.3. MANUAL OPERATION
DANGER!!!!
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical
personnel utilizing safe work practices and appropriate Personal Protective
Equipment (PPE). Failure to do so may cause personal injury or death
A two-position “System Operation Mode” selector switch is provided to operate the
transfer switch manually as follows:
AUTO: This selects automatic operation of the transfer switch. The power
switching device will automatically open/close as detailed in the sequence of
operation.
MAN: This position inhibits automatic operation and automatic engine starting.
The power switching device must be manually operated via pushbuttons located on
the face of the power switching devices to open/close them as required.
NOTE:
When the MANUAL Mode is selected the engine start output
logic is disabled. Where generator voltage is required during
manual operation the local generator controls must be set for
manual operation.
To transfer manually to generator - turn the System Operation Mode selector to
MANUAL, manually start the generator, open the utility power switching device,
close the generator power switching device, using open/close pushbuttons.
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