Perfect Harmony GENIII/e User’s Manual Introduction
A1A19000405A: Version 1.3 1-5
1
1.3 Specifications
Table 1-1 lists common electrical and mechanical specifications for all standard Perfect Harmony systems. Note that 
Perfect Harmony specifications may be changed without notice.
Table 1-1:  Common Specifications for Standard Perfect Harmony Systems
∇ ∇ ∇
Item Description
hp range
GEN III: Up to 3,000 Hp at 6,300V
GEN III/e: Up to 8,000 Hp at 6,600V
Input line voltages
2.2 kV, 3.0 kV, 3.3 kV, 4.1 kV, 4.8 kV, 6.0 kV, 6.6 kV,6.9 kV, 
7.2 kV, 8.4 kV, 10.0 kV, 11.0 kV, 12.0 kV, 12.5 kV, 13.2 kV, 
and 13.8 kV.
Input voltage tolerance +10%, -5% from nominal 3-phase at rated output
Input power factor 0.95 above 10% load
Output line voltages
2.4 kV, 3.3 kV, 4.16 kV, 4.8 kV, 6.0 kV, 6.6 kV,6.9 kV, and 
7.2 kV
Output frequency drift
± 0.5%
Speed range 0.5 - 330 Hz (motor dependent)
Overload capability A function of the installed type of cell
Accel/decel time range 0.5 - 3200 sec (load dependent)
Output torque
15 - 139 Hz rated torque; 3 - 14 Hz and 140 - 330 Hz der-
ated torque
Enclosure NEMA 1 ventilated, IP31
Ambient temperature 0 - 40°C
Storage temperature 
(System w/o Cells)
- 40 to 70°C
Storage temperature 
(Cells*)
- 55 to 45°C
Humidity 95% non-condensing
Altitude Up to 3300 feet. Above 3300 feet require derating.
Dust contamination <100 micron 2 6.5 mg/cu. ft.
Gas contamination <4 PPB reactive halides and sulfides
*
Note: * Non-energized cells should not be stored at more than 45°C to preserve reliability of 
Filter Capacitors. Non-energized cells stored for more than two (2) years should be reformed per 
procedure indicated in Section 3-12 of this manual.