CHAPTER 2
TECHNICAL SPECIFICATIONS
Entire Contents Copyright 2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-3000P Series 2 - 5 OM-001-03000-00P-03.9
Power versus Output Frequency Rating Chart
The following thermal ratings apply to models 3060, 3090, 3120, 3150 and 3180 as a
function of load and programmed output frequency at an ambient temperature of
25°C. This derating is caused by heat build-up in the output transformer.
Output load ratings expressed as restive load reflecting % of full load for frequency
ranges at which the power source can operate continuously are as follows:
45Hz ~ 100Hz 90% resistive load
< 200Hz 77% resistive load
< 300Hz 65% resistor load
< 400Hz 52% resistor load
< 500Hz 40% resistor load
At an output frequency of 500Hz and output power into 70% resistor load, the power
source can operate for a period of 15 minutes then instrument output will shut down
because output transformer is too hot.
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
50
100
200
300
400
500
150
250
350
450
15min
30min
Continuity
Power
Frequency(Hz)
Resistor
Load
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