서브비쥬얼

Production

서브텝

Production

Measuring instrument & test equipment

Measuring instrument test configuration
1. 704F test notebook
2. Adjustable AC power supply
3. Capacitors, 10 µF (3EA)
4. Coupling transformer
5. Current transformer
6. Distortion meter
7. Frequency counter
8. Inductors, 50uH (3EA)
9. Oscilloscope
10. Phase angle meter
11. Power meter
12. Programmable AC power supply
13. Resistive dummy load
14. Resistor, calibrated load
15. Spectrum analyzer
16. True RMS voltmeter
17. Variable frequency power source

Production

MIL-STD-704 test item

classification test item
28VDC
(LDC)

270VDC
(HDC)
101 Load Measurements
102 Steady State Limits for Voltage
103 Voltage Distortion Spectrum
104 Total Ripple
105 Normal Voltage Transients
201 Power Interrupt
301 Steady State Limits for Voltage
302 Abnormal Voltage Transients
401 Steady State Limits for Voltage
501 Starting Voltage Transients
601 Power Failure
602 Phase Reversal
115VAC/60Hz
(SXF)

115VAC/400Hz
(SAC)
101 Load Measurements
102 Steady State Limits for Voltage and Frequency
103 No Test Required
104 Voltage Modulation
105 Frequency Modulation
106 Voltage Distortion Spectrum
107 Total Voltage Distortion
108 DC Voltage Component
109 Normal Voltage Transients
110 Normal Frequency Transients
201 Power Interrupt
301 Abnormal Steady State Limits for Voltage and Frequency
302 Abnormal Voltage Transients
303 Abnormal Frequency Transients
401 Emergency Steady State Limits for Voltage and Frequency
501 No Tests
601 Power Failure (Single Phase)
602 No Test Required
603 Phase Reversal (Single Phase)
115VAC/400Hz
(TAC)
101 Load Measurements
102 Steady State Limits for Voltage, Including Unbalance, and Frequency
103 Voltage Phase Difference
104 Voltage Modulation
105 Frequency Modulation
106 Voltage Distortion Spectrum
107 Total Voltage Distortion
108 DC Voltage Component
109 Normal Voltage Transients
110 Normal Frequency Transients
201 Power Interrupt
301 Abnormal Steady State Limits for Voltage and Frequency
302 Abnormal Voltage Transients
303 Abnormal Frequency Transients
401 Emergency Steady State Limits for Voltage and Frequency
501 No Test Required
601 Power Failure (Three Phase)
602 One and Two Phase Power Failures
603 Phase Reversal (Three Phase)