CHAPTER 1
INTRODUCTION
Entire Contents Copyright
2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-1000 Series
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OM-001-01000-000-04.0
The APS-1000 Series of Power Converters have been designed to provide frequency
and voltage conversion in a controlled test environment. Both manually adjustable and
remotely-programmable settings are provided. All APS-1000 Series Power Converters
provide 1-phase output power. Different models cover the power range from 2 kVA to
60 kVA. All units provide user-controlled 1-phase output power within the frequency
range of 45 – 500 Hz.
All APS-1000 Series units operate as double-conversion power converters. The first
conversion is AC to DC. The second conversion is DC back to AC. Three units (APS-
1002, APS-1003, and APS-1005) operate with 1-phase input power. All other units
operate with 3-phase input power. After rectification, filtering removes high-frequency
content. Low-ripple DC is subsequently converted to 1-phase AC by a high-frequency
pulse-width-modulated (PWM) switcher. Precise control is maintained by using a
highly stable digital oscillator.
APS-1000 Series Power Converters are designed for long-term continuous operation
in sheltered (no rain) environments. Because there are no batteries, APS-1000 units
operate reliably over a wide ambient temperature range. Through the use of switching
technology the equipment is efficient (about 85%). Power Converter units are
relatively tolerant of high dust environments.
Safety Notices
APS-1000 Series Power Converters can transfer very large amounts of
electrical energy very quickly.
The rapid transfer of large amounts of electrical energy is fundamental to any
high-performance power source.
Only experienced operators who have both read and understood the
information in this manual should attempt to operate the unit.
The following warnings and cautions herein must be observed at all times.
