Bryant ASPAS1BBA015 Manual do Utilizador descarregar pdf (Página 56)

Page 56

SECTION 3.2

OPERATIONAL ANALYSIS

PART 3

“V-TYPE” PREPACKAGED

TRANSFER SWITCHES

UTILITY RESTORED, TRANSFER SWITCH DE-ENERGIZED

After the preset time interval expires the circuit board will open the Wire 23 circuit to ground. The transfer relay

de-energizes, it's normally closed contacts close, and utility source voltage is delivered to the utility closing coil

(C1), via Wires N1A and N2A, closed Transfer Relay Contacts 1 and 7, and Limit Switch XA1.

Figure 7. Utility Restored, Transfer Relay De-energized.

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Bryant ASPAS1BBA015 Manual do Utilizador Página 56