Table 6-9: Rtca/Do160 Section 16 Test Number 16.5.2.1D; Table 6-10: Voltage Transient List For Example 1; Figure 6-10: Rtca/Do160 Section 16 Test Number 16.5.2.1D - Pacific Power Source LMX Series Operation Manual

Voltage and Frequency Transient Example 1
This example is based on an actual avionics test requirement from RTCA/DO160 Section 16
test number 16.5.2.1d. This is a single-phase abnormal voltage and frequency limit test for
airborne equipment operated from 400Hz AC power.
The requirement from the test standard is shown in the table below:
There are four tests, each runs for at least 5 minutes or 300 seconds. Each test step has a
different voltage and frequency deviation from the nominal 115V and 400Hz. This is
graphically illustrated by the image below.
Volt AC
Step #1
120.0
110.0
100.0
90.0
0.0
To generate this DO160 test sequence, the following transient list entries are required.
Times shown in milliseconds.
#
1
2
3
4
5

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LMX Series Power Source Operation Manual
TEST VOLTAGE (V rms)
1
2
3
4

Table 6-9: RTCA/DO160 Section 16 test number 16.5.2.1d

Step #2

Figure 6-10: RTCA/DO160 Section 16 test number 16.5.2.1d

Ramp
0.2
0.2
0.2
0.2
1000

Table 6-10: Voltage Transient List for Example 1

LMX SERIES™ OPERATION MANUAL
SECTION 6:
122
100
122
100
Step #3 Step #4
115Vac
400Hz
Freq Volt
430 122.00
370 100.00
430 122.00
370 100.00
400 115.00
Front Panel Operation
FREQUENCY (Hz)
430
430
370
370
Freq
Step #5
Time à
Dwell
300000
300000
300000
300000
300000
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