Section 75 00-02-0522
04-06-11 - 20 -
When using a Center Tapped Delta (3-phase output is 240VL-L, but L-N is 120,208,120L1, L2,
and L3 respectively) this is the setup to select. Single phase (two lines and a neutral) of any
configuration.
12. Generator Over Freq -Over-frequency shutdown setpoint. (Default is 65 Hz)
13. Generator Under Freq - Under-frequency shutdown setpoint. (Default is 55 Hz)
14. Nominal Voltage - "OK" voltage as measured at the "Nominal Voltage source". (Default is
480VAC)
15. Over-Voltage Trip - Over voltage shutdown setpoint. (Default is 110%)
16. Under-Voltage Trip - Under-voltage shutdown setpoint. (Default is 90%)
17. Power Factor Limit - Maximum limit for power factor. Will shutdown generator if setpoint
is exceeded. (Default .8 set to OFF to bypass)
18. IDMT Curve- Thermal protection for AC Alternator Off (Default) inverse; very inverse;
extremely inverse; long time inverse.
19. IDMT Pickup Current -Current setpoints for Thermal Protection to start (Default is 300A)
20. Maximum Inst. Over-Current - Over-current shutdown setpoint. (Default is 300A)
Instantaneous
21. PT Ratio -In system with L-L voltages > 600V, Potential transformers must be used to
prevent voltages greater than design from being applied to the energy monitoring board.
(xxx:1) 4200V:120V = 35:1 ratio, 480:240=2 ETC. (Default is 1.00:1)
22. kVA Limit -Limits kVA output of generator. Requires a level 5 password. (Default is 200
kVA.)
23. Over freq. Warn time - Delay timer before system shuts down on over frequency (Default
is 3 sec)
24. Over voltage warn time - Delay timer before system shuts down on over voltage. (Default
is 3 sec)
25. UF, UV, OC warn time - Delay timer before system shuts down on Under Frequency,
Under Voltage or Over Current. (Default is 3 sec)
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