V-TYPE PREPACKAGED TRANSFER SWITCHES

PART 3

SECTION 3.2

OPERATIONAL ANALYSIS

UTILITY RESTORED

Utility voltage is restored and is available to terminals N1 and N2. The utility voltage is sensed by the generators circuit board. If it is above a preset value for a preset time interval a transfer back to utility power will occur.

Figure 6. Utility Restored, Generator Still Providing Output to Load.

Page 3.2-6

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Guardian Technologies 4389, 4456, 4390, 4760, 4759, 4758 manual Utility Restored, Generator Still Providing Output to Load