1、 MIL-HDBK-704-5 9 April 2004 DEPARTMENT OF DEFENSE HANDBOOK GUIDANCE FOR TEST PROCEDURES FOR DEMONSTRATION OF UTILIZATION EQUIPMENT COMPLIANCE TO AIRCRAFT ELECTRICAL POWER CHARACTERISTICS THREE PHASE, VARIABLE FREQUENCY, 115 VOLT ( PART 5 OF 8 PARTS ) This Handbook is for guidance only. Do not cite
2、this document as a requirement. AMSC N/A AREA SESSNOT MEASUREMENT SENSITIVE Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 ii FOREWORD 1. This handbook is approved for use by all Departments and Agencies of the Department of Defense.
3、2. This handbook provides guidance on test procedures for demonstration of three phase, variable frequency, 115 volt utilization equipment to determine compliance with the applicable edition of MIL-STD-704. 3. MIL-HDBK-704-5 is Part 5 in a series of 8 Parts. Part 5 describes the test methods and pro
4、cedures to demonstrate that three phase, variable frequency, 115 volt utilization equipment is compatible with the electric power characteristics of MIL-STD-704. These series of handbooks and MIL-STD-704 are companion documents. 4. Comments, suggestions, or questions on this document should be addre
5、ssed to Commander, Naval Air Systems Command, Code 4.1.4, Highway 547, Lakehurst, NJ 08733-5100 or email to thomas.omaranavy.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at www.dodssp.daps.mil. Provided by
6、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 iii CONTENTS PARAGRAPH PAGE FOREWORD ii 1. SCOPE 1 1.1 Scope. 1 2. APPLICABLE DOCUMENTS 1 2.1 General 1 2.2 Government documents 1 2.2.1 Specifications, standards and handbooks 1 3. DEFINITIONS 1 3.
7、1 Acronyms and definitions. 1 4. TEST METHODS INFORMATION 1 4.1 Demonstration of compatibility 1 4.1.1 Recording performance. 1 4.2 Calibration of test equipment 1 4.3 Test methods. 2 5. TEST METHODS. 4 METHOD TVF101 Load Measurements 5 METHOD TVF102 Steady State Limits for Voltage . (Including Unba
8、lance) and Frequency 13 METHOD TVF103 Voltage Phase Difference 24 METHOD TVF104 Voltage Modulation 29 METHOD TVF105 Frequency Modulation 44 METHOD TVF106 Voltage Distortion Spectrum. 51 METHOD TVF107 Total Voltage Distortion . 63 METHOD TVF108 DC Voltage Component 71 METHOD TVF109 Normal Voltage Tra
9、nsients . 76 METHOD TVF110 Normal Frequency Transients. 93 METHOD TVF201 Power Interrupt 99 METHOD TVF301 Abnormal Steady State Limits for Voltage and Frequency . 115 METHOD TVF302 Abnormal Voltage Transients . 121 METHOD TVF303 Abnormal Frequency Transients. 136 METHOD TVF401 Emergency Steady State
10、 Limits for Voltage and Frequency . 142 METHOD TVF501 No Tests 143 METHOD TVF601 Power Failure (Three Phase). 144 METHOD TVF602 One and Two Phase Power Failures 151 METHOD TVF603 Phase Reversal (Three Phase) . 163 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
11、rom IHS-,-,-MIL-HDBK-704-5 iv PARAGRAPH PAGE 6. NOTES 168 6.1 Intended use 168 6.3 Subject term (keyword) listing . 168 TABLE TVF-I. Summary of single phase, 400 Hz, 115 volt utilization equipment . MIL-STD-704 compliance tests. 3 CONCLUDING MATERIAL 168 Provided by IHSNot for ResaleNo reproduction
12、or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 1 1. SCOPE 1.1 Scope. This handbook provides, as guidance, test methods used to demonstrate that three phase, variable frequency, 115 volt utilization equipment is compatible with the electric power characteristics of the applicable
13、 edition(s) of MIL-STD-704. This handbook is for guidance only and cannot be cited as a requirement. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed below are not necessarily all of the documents referenced herein, but are those needed to understand the information provided by this handboo
14、k. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-704 DoD Interface Standard for Aircraft Electric Power Characterist
15、ics (Copies of these documents are available online at http:/assist. daps.dla.mil/quicksearch or www.dodssp.daps.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadephia, PA 19111-5094.) 3. DEFINITIONS 3.1 Acronyms and definitions. The acronyms and definitio
16、ns of MIL-STD-704 are applicable to this handbook. 4. TEST METHODS INFORMATION 4.1 Demonstration of compatibility. This section contains the test methods which will ensure that three phase, variable frequency, 115 volt utilization equipment is compatible with the electric power characteristics of th
17、e applicable edition(s) of MIL-STD-704, by testing the Unit Under Test (UUT) in accordance with the test procedures as described in test methods TVF101 through TVF603. 4.1.1 Recording performance. In table TVF-I, record the edition(s) of MIL-STD-704 that defined the aircraft electric power character
18、istics used for testing and the performance of the UUT for each of the test methods. 4.2 Calibration of test equipment. Test equipment and accessories required for measurement in accordance with this handbook should be calibrated in accordance with an approved calibration program traceable to the Na
19、tional Institute for Standards and Technology. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 2 The serial numbers, model, and calibration date of all test equipment should be included with the test data. 4.3 Test methods. The test me
20、thods listed in table TVF-1 are provided in section 5 of this handbook. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 3 TABLE TVF-I. Summary of three phase, variable frequency,115 volt utilization equipment MIL-STD-704 compliance tes
21、ts. UUT: Compliance to MIL-STD-704 Edition(s): Test Dates: Test Method Description Performance (Pass/Fail) Comments Normal, Aircraft Electrical Operation TVF101 Three Phase Load and Current Harmonic Measurements TVF102 Steady State Limits for Voltage (Including Unbalance) and Frequency TVF103 Voltag
22、e Phase Difference TVF104 Voltage Modulation TVF105 Frequency Modulation TVF106 Voltage Distortion Spectrum TVF107 Total Voltage Distortion TVF108 DC Voltage Component TVF109 Normal Voltage Transients TVF110 Normal Frequency Transients Transfer, Aircraft Electrical Operation TVF201 Power Interrupt A
23、bnormal, Aircraft Electrical Operation TVF301 Abnormal Limits for Voltage and Frequency TVF302 Abnormal Voltage Transients (Overvoltage/Undervoltage) TVF303 Abnormal Frequency Transients (Overfrequency/Underfrequency)Emergency, Aircraft Electrical Operation TVF401 Emergency Limits for Voltage and Fr
24、equency Starting, Aircraft Electrical Operation TVF501 See Note #1 N/A N/A Power Failure, Aircraft Electrical Operation TVF601 Power Failure (Single Phase) TVF602 One Phase and Two Phase Power Failures TVF603 Phase Reversal Note 1: Starting operation conditions are usually not applicable to AC utili
25、zation equipment. No test is required for TVF501 unless specified by the equipment performance specification. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 4 5. TEST METHODS Provided by IHSNot for ResaleNo reproduction or networking
26、permitted without license from IHS-,-,-MIL-HDBK-704-5 5 METHOD TVF101 Load Measurements POWER GROUP: Three Phase, Variable Frequency, 115 V AIRCRAFT ELECTRICAL OPERATING CONDITION: Normal PARAMETER: Load Measurements 1. Scope. 1.1 Purpose. This test procedure is used to verify that three phase, 115
27、Volt, variable frequency power utilization equipment utilizes only 115 Volt line-to-neutral power, current inrush is within limits, has balanced power, the power factor is within limits, and does not use half-wave rectification for the applicable edition(s) of MIL-STD-704. Additionally, when the uti
28、lization equipment performance specification document imposes current waveform requirements, this test procedure is used to verify that the utilization equipment current waveform is within total current distortion and current spectrum (current distortion vs frequency) limits defined in the utilizati
29、on equipment performance specification document. 2. Validation criteria. The utilization equipment is considered to have passed if the utilization equipment utilize only 115 Volt line-to-neutral power, is within current inrush limits, is within the balanced load limits, is within the power factor li
30、mits, and does not use half-wave rectification for the applicable edition(s) of MIL-STD-704 and as noted in table TVF101-I. If required by the utilization equipment performance specification document, the utilization equipment current waveform must be within the total current distortion and current
31、spectrum limits defined in the utilization equipment performance specification document. The utilization equipment must not suffer damage or cause an unsafe condition. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-704-5 6 TABLE TVF101-I. M
32、IL-STD-704 limits for inrush current, balanced load, power factor, rectification restriction, current distortion, and current spectrum for three phase, variable frequency utilization equipment. Limit 704A 704B 704C 704D 704E 704F Inrush Current N/A N/A N/A N/A N/A 300 Percent for Loads 3 kVA Percent
33、 Unbalanced Load N/A N/A N/A N/A N/A Figure 1MIL-STD-704For 3.33% for Loads 30 kVA Power Factor N/A N/A N/A N/A N/A 0.85 Laggingto Unity for Loads 500 VA and No Leading Power Factor for 100VA Rectification Restriction N/A N/A N/A N/A N/A NoHalf-Wave Rectification Current Distortion N/A N/A N/A N/A N
34、/A See Note 1/ Current Spectrum N/A N/A N/A N/A N/A See Note 1/ 1/. Utilization equipment specification should include requirements that reduce the likelihood of the equipment having an adverse effect on the electrical power characteristics of the aircraft. Current distortion and current spectrum li
35、mits may be imposed to minimize undesirable effects to the electrical power characteristics. These limits should take into account the utilization equipment power draw, aircraft electrical system capacity and distribution characteristics, trade-offs with weight, volume, cost, and reliability that ar
36、e specific to each type of equipment and aircraft. 3. Apparatus. The test equipment should be as follows: a. Adjustable AC power supply (rotating AC source for current waveform limits) b. True RMS voltmeter c. Frequency counter d. Power meter e. Spectrum analyzer f. Distortion meter g. Current trans
37、former h. Oscilloscope 4. Test setup. Configure the test setup as shown in figure TVF101-1. Measurements, except current, must be made within 10 cm of the input power terminals of the UUT. Current Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H
38、DBK-704-5 7 measurements must be taken from the 115 Volt conductors. If the utilization equipment performance specification document imposes current waveform limits, the AC power source must be a rotating machine. 5. Compliance test. With the power source off, install the UUT and the stimulation and
39、 monitoring equipment into the test setup of figure TVF101-1. Turn on the power source and adjust the voltage to the nominal steady state voltage of 115 Vrms (line-to-neutral) and adjust the frequency to a steady state frequency of 400 Hz. Close the circuit breaker, energizing the UUT. Record the in
40、rush currents (oscilloscope traces) and record the maximum rms current of each phase in the data sheet shown in table TVF101-II. Allow sufficient time for the UUT to warm up. Conduct a performance test of the UUT according to the utilization equipment performance test procedures to verify that the U
41、UT is providing specified performance for normal aircraft electrical conditions. Record the frequency in table TVF101-II. For each phase, record the voltage, VA, and power factor in the data sheet shown in table TVF101-II. Compare the calculated percent inrush current, the load unbalance, and power
42、factor with the limits of the applicable edition(s) of MIL-STD-704. Repeat for each mode of operation of the UUT. Repeat the testing at a steady state frequency of 360 Hz, 600 Hz, and 800 Hz. Confirm the UUT does not use half-wave rectification and record in the data sheet shown in table TVF101-II.
43、If the utilization equipment performance specification document imposes current waveform limits, adjust the voltage to the nominal steady state voltage of 115 Vrms (line-to-neutral) and adjust the frequency to a steady state frequency of 400 Hz. For each phase record the total current distortion and
44、 current spectrum in the data sheet shown in table TVF101-II and compare to the limits defined in the utilization equipment performance specification document. Repeat for each mode of operation of the UUT. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
45、,-,-MIL-HDBK-704-5 8 Unit Under Test(UUT)AdjustableAC 3-PhasePowerSupplyStimulation & MonitoringEquipment(See Note 5)True RMSVoltmeterFrequencyCounterPowerMeterSpectrumAnalyzerOscilloscopeABCGround PlaneNGNDSee Note 110 cmABCNIFUSEDCHASSISSee Note 3CAUTIONCurrentTransformers3XNotes:1. Voltage measur
46、ements shall be made within 10 cm of UUT input power terminals.2. For 3 phase 4 wire equipment, neutral connection to also be made within 10 cm of UUT input powerterminals. For 3 phase 3 wire equipment, line-to-neutral measurements to be made with neutral connectionmade to power supply neutral.3. CA
47、UTION: Verify suitability of power supply NEUTRAL and GROUND connections.4. CAUTION: Verify suitability of instrumentation inputs and/or use appropriate attenuation.5. Stimulation and Monitoring Equipment are user defined. This functional block shall provide appropriate inputs(stimulations) and moni
48、tor UUT outputs (e.g.: RPM, signals, data, etc.)6. If current waveform limits are imposed by the detailed performance specification, the AC power source shallbe a rotating machine.Load MeasurementsFigure TVF101-1See Note 2DistortionMeter(See Note 6)(See Note 4)(See Note 4)(See Note 4)(See Note 4)(See Note 4)(See Note 4)FIGURE TVF101-1. Load measurements. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE TVF101-II. Sample data sheet for TVF101 load measurement. Parameters Test performed at 400 Hz steady state frequency Inrush Current Phas
