Bryant ASPAS1BBA015 Manual do Utilizador descarregar pdf (Página 57)

Page 57

SECTION 3.2

OPERATIONAL ANALYSIS

“V-TYPE” PREPACKAGED

TRANSFER SWITCHES

PART 3

UTILITY RESTORED, RETRANSFER BACK TO UTILITY

As the utility coil pulls the transfer switch to an OVER CENTER position, the switch mechanically snaps to Utility.

On closure of the main contacts to the utility power source side, Limit Switches XA1 and XB1 are mechanically

actuated to “arm” the circuit for transfer to standby.

Figure 8. Utility Restored, Retransfer Back to Utility.

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Bryant ASPAS1BBA015 Manual do Utilizador Página 57