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Perfect Harmony GENIII/e User's Manual
Blower
Figure 2-10: Cell Section (Typical) of a GENIII style Perfect Harmony Drive
A switch mode power supply located on the Cell Control/Gate Driver Board allows the control power to be derived
from the individual 3-phase secondary connections of the transformer.
The Control Section contains PC boards, which provide central control of the Perfect Harmony drive system. The
Control Section is physically and electrically isolated from all medium voltage for safety.
Control for each of the output cells is provided via a fiber optic communications link between the Master Control
System and the Cell Control/Gate Driver Board located within each output cell.
The following tables give length and weight information for many common configurations of sectional Perfect
Harmony drives, based on 60 Hz input power at the voltages listed. If applications require inputs at 50 Hz or
horsepowers not listed, sizes and weights will increase.
Note: The ventilation information (in CFM) and losses information (in BTUs) given in the
following tables represent worst case conditions. Actual values may vary based on load, blower
size, cell size and transformer size.
A1A19000405A: Version 1.3
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Hardware Components
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