Testing The Automatic Transfer Switch - Briggs & Stratton 200 SED Serie Guide D'installation Et De Démarrage Rapide

Testing the Automatic Transfer Switch

WARNING Shock Hazard. Equipment contains high voltage
that could result in death, serious injury and/or
property damage.
• Testing must only be performed by qualified personnel.
• DO NOT operate this equipment imprudently or neglect its
maintenance.
Turn both of the utility service disconnect circuit breakers feeding
the transfer switch contactors to the OFF position. The system's
automatic sequence described below will initiate. To return to utility
power, turn the utility service disconnect circuit breakers to the
ON position.
Utility Fail
The generator senses when utility voltage is below 70 percent of
nominal. Engine start sequence is initiated after 6 second time
delay.
Engine Warm-Up
There is a time delay to allow for engine warm-up before transfer.
Use jumper on transfer switch control board to select delay of
20 seconds or 50 seconds.
Transfer
Transfer from utility to generator supply occurs after voltage is
above set levels and after the initial warm-up period. The transfer
switch control board LED lights will change from green (utility) to
red (generator) and the Symphony II status light will change blink
status from Blink Blink_Pause_Blink Blink to Blink_Pause_Blink.
Minimum engine run time is 5 minutes after transfer.
Utility Pickup
Voltage pickup level is 80 percent of nominal voltage.
Retransfer
Retransfer from generator to utility power is approximately 10
seconds after utility voltage supply is above pickup level and
minimum run time is completed. All remote module(s) will remain
OFF for five minutes after the power transfer.
NOTICE Any time the remote module is turned off, even under
utility power, there is a 5 minute delay in power being restored to
the module.
Engine Cool Down
Engine will run for 60 seconds after retransfer.
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