Operation
Owner’s Manual for Stationary Diesel Generators 25
Figure 4-3. Manual Transfer Switch Operation
(Typical)
NOTE: V-style transfer switch not used for three phase
applications.
Transfer Back to Utility Power
When utility power is restored, manually transfer back to
utility power and shut down the generator as follows:
NOTE: Verify that utility voltage has returned and is at
the proper value.
1. Move the Main Circuit Breaker switch down to the
OFF (Open) position.
2. Allow the engine to run for two minutes at no-load
to bring it up to normal operating temperature.
3. Press OFF on the control pad to shut down the
engine.
4. Verify that utility power supply to the transfer switch
is turned off.
5. Use the manual transfer handle inside the transfer
switch to move the main contacts to the UTILITY
position (B) (loads connected to the utility power
source).
6. Turn on the utility power supply to the transfer
switch using the means provided.
7. Press AUTO on the control pad. A green LED
illuminates to confirm that the system is in the
AUTO mode.
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