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SECTION 3.2
OPERATIONAL ANALYSIS
When the standby coil is energized it pulls the transfer switch mechanism to a overcenter position towards the
standby power source side, the transfer switch mechanically snaps to the STANDBY position. On closure of the
main contacts to the standby power source side, limit switches XA1 and XB1 are mechanically actuated to "arm"
the circuit for re- transfer to utility power source side.
Generator power from E1 and E2 is now connected to the customer load through T1 and T2.
Page 3.2-5
TRANSFER TO STANDBY
Figure 5. Generator Powering Load.
V-TYPE PREPACKAGED
PART 3
TRANSFER SWITCHES
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