1、Comments, suggestions, or questions on this document should be addressed to U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000 or emailed to DAMI_STANDARDIZATIONconus.army.mil. Since contact in
2、formation can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil/online/. AMSC N/A FSC 2920 INCH-POUND MIL-PRF-62528B(AT) 14 July 2010 SUPERSEDING MIL-PRF-62528A(AT) 26 July 1996 PERFORMANCE SPECIFICATION REGULATOR,
3、ENGINE GENERATOR: SOLID STATE 28 VOLT, DUAL CURRENT LIMIT, DIRECT CURRENT This specification is approved for use by U.S. Army Tank-automotive and Armaments Command, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This
4、 specification covers a solid state regulator utilizing electronic devices, to regulate the voltage, control the reverse current, and limit the current of the 28 volt (V), 300 ampere (A), direct current (dc) generator. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are spe
5、cified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned tha
6、t they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 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
7、extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62528B(AT) 2 DEPARTMENT OF DEFENSE SPECIFICATIONS MI
8、L-B-62346 - Batteries, Storage: Lead-Acid, Low Maintenance (Metric). DEPARTMENT OF DEFENSE STANDARDS MIL-STD-202 - Test Methods for Electronic and Electrical Component Parts. MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsytems and Equipment. MIL-ST
9、D-1275 - Characteristics of 28 Volt DC Electrical Systems in Military Vehicles. DEPARTMENT OF DEFENSE HANDBOOKS MIL-HDBK-1184 - Electrical Components for Automotive Vehicles; Waterproofness Tests (Unless otherwise indicated, copies of the above specifications and standards are available from the Doc
10、ument Automation and Production Service, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094 or https:/assist.daps.dla.mil/quicksearch/) 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this doc
11、ument to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). TACOM DRAWINGS 12333040 - DC Solid State Voltage Regulator. (Copies of these documents are available from dami_standardizationconus.army.mil or U
12、.S. Army RDECOM, Tank Automotive Research Development, and Engineering Center, ATTN RDTA-EN/STND/TRANS, MS #268, 6501 E 11 Mile Road, Warren, MI 48397-5000) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specifie
13、d, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). Provided by IHSNot for ResaleN
14、o reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62528B(AT) 3 AMERICAN SOCIETY FOR QUALITY (ASQC) ASQC Z1.4 - Procedures, Sampling, and Tables for Inspection by Attributes (Copies may be obtained from American Society for Quality, 600 North Plankton Avenue, Milwaukee, WI 5
15、3203 or website: http:/www.asq.org/.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D522 - Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings (DoD Adopted). ASTM G21 - Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi (Application f
16、or copies should be addressed to American Society for Testing and Materials, 100 Barr Harbor Dr., West Conshohocken, PA 19428 or www.astm.org.) GENERAL MOTORS ENGINEERING STANDARDS GM9540P - Accelerated Corrosion Test. (Application for copies of GM publications may be obtained from Global Engineerin
17、g, 7730 Corondelet Avenue, Suite 407, St. Louis, MO 63105 or at website: http:/ 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable
18、laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.4. 3.2 Materials. Materials shall be as specified herein, in applicable standards and specific
19、ations, and on applicable drawings. Materials not specifically designated shall be suitable for use in the regulator operating over an ambient temperature range -65 to 215 degrees Fahrenheit (F) (-53 to 101 degrees Celsius (C) without any change in physical or dimensional properties while meeting al
20、l performance and environmental requirements of this specification (see 4.5.4.1). 3.2.1 Hazardous materials. Asbestos, cadmium, and radioactive material (see 6.3.4) shall not be used in this item. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P
21、RF-62528B(AT) 4 3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes econom
22、ically advantageous life cycle costs. 3.3 Environmental conditions. 3.3.1 High temperature. The regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.5 through 3.9.7, 3.9.9, and 3.9.10, when exposed to temperatures up to 220F (104C); the regulator shall meet the requirements of 3.9.2, except th
23、e regulated voltage shall be 26.5 0.7 V. After exposure, the regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4a through d, and 3.9.5 (see 4.6.4.1). 3.3.2 Low temperature. The regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.5 through 3.9.7, 3.9.9, and 3.9.10, after storage at te
24、mperatures down to -80F (-62C) and during exposure to temperatures down to -65F (-54C). The regulator shall also meet the requirements of 3.9.2, except that the regulated voltage shall be 29.5 0.7V. Subsequently, the regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4a thru d; and 3.9.5 (se
25、e 4.6.4.2). 3.3.3 Vibration. When tested as specified in 4.6.4.5, the regulator shall evidence no breakage, loosening of parts, abrasion, or other physical damage. Subsequent to the test, the regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4, and 3.9.5. 3.3.4 Shock. When tested as specifi
26、ed (see 4.6.4.6), the regulator shall evidence no breakage, loosened or distorted parts, or other physical damage. Subsequent to the test, the regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4, and 3.9.5. 3.3.5 Corrosion resistance. The regulator shall have corrosion resistance equal or b
27、etter than 1020 steel sheet, galvanized with a minimum 0.75 mil zinc coating, zinc phosphate pretreatment, epoxy prime paint and CARC top coat. No servicing, adjustment or replacement parts shall be necessary (see 4.6.4.4). 3.3.6 Fungus resistance. The regulator shall not support microbial growth th
28、at would adversely affect performance (see 4.6.4.3). 3.3.7 Waterproofness. The regulator shall meet the waterproofness requirements in accordance with 4.6.4.7. Subsequent to exposure, the regulator shall meet the requirements of 3.9.2. 3.4 Weight. The regulator weight shall be no more than 18.5 poun
29、ds (lbs) (8.39 kilograms (kg) (see 4.6.2). 3.5 Design. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62528B(AT) 5 3.5.1 Polarity. The regulator shall be designed to operate with a negative-grounded, electrical system, and shall be internall
30、y case grounded (see 4.5.4.1). 3.5.2 Electromagnetic interference suppression. Electromagnetic interference generated within the regulator shall be suppressed within the regulator housing (see 4.5.4.1). 3.5.3 Configuration. The regulator fabricated in accordance with this specification shall have ex
31、ternal dimensions that fall within the envelope outline of Drawing 12333040. Electrical connectors and mounting dimensions shall also conform to the detail requirements of this drawing. Contact designation shall be in accordance with figure 1 (see 4.5.4.2). 3.6 Construction and hardware. 3.6.1 Dissi
32、milar metals. Except where necessary to complete an electrical circuit, contact between dissimilar metals which would encourage galvanic action shall be avoided. Separation of dissimilar metals shall be accomplished by providing insulation between mating surfaces (see 4.5.4.1). 3.6.2 Standard parts.
33、 Military standard parts shall be used wherever possible (see 4.5.4.1). 3.7 Reliability. Quantitative reliability numbers are to be determined by Government reliability engineers prior to finalizing the contract (see 6.2). 3.8 Endurance. The temperature stabilized regulator (see 6.3.1) shall be capa
34、ble of withstanding the endurance load cycles specified herein for a total of 1100 hours. Subsequently, the regulator shall meet the requirements of 3.3.7 and 3.9.1 through 3.9.6 (see 4.6.4.9). 3.9 Performance characteristics. 3.9.1 Reverse current. The reverse current shall not exceed 30 millampere
35、s (mA) when measured between the regulator and the batteries (see 4.6.1.1.1). 3.9.2 Voltage regulation. When pin E of the battery connector is not connected to ground, the regulator shall establish and maintain regulated voltage per figure 8 throughout the generator speed range of 2350 to 8160 revol
36、utions per minute (rpm) with load current from battery only to 350 A. With pin E of the battery connector connected to ground, the regulator shall establish and maintain regulated voltage per figure 8 throughout the generator speed range of 3000 50 rpm with load current from battery only to 150 A. T
37、he fundamental frequency of the voltage waveform shall be greater than 100 Hertz (Hz). The regulator shall re-establish and maintain a regulated voltage within the time and voltage limits indicated on figure 2. Overshoot and undershoot limits shall conform to limits on figure 2. For load currents ab
38、ove 350 A with load increased to 400 A and with pin E of the battery terminal ungrounded, the regulated voltage shall be equal to or less than that measured at 350 A. For loaded currents above 150 A with pin Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
39、S-,-,-MIL-PRF-62528B(AT) 6 E of the battery connector grounded, the regulated voltage shall be equal to or less than that at 150 A (see 4.6.1.1.2). 3.9.3 Voltage ripple. The regulator output voltage waveform shall have the following limitations: with batteries disconnected, the alternating current (
40、ac) peak to peak ripple voltage shall be no more than 7 V with pin E of the battery connector both grounded and ungrounded. With batteries connected, the peak to peak ripple voltage shall be no greater than 4 V, except that excursions of less than 1 millisecond (ms) may exceed 4 V (see 4.6.1.1.3). 3
41、.9.4 Current limit. The regulator shall provide current control per figure 9 and as specified below (see 4.6.1.1.4): a. With pin E of the regulator battery connector grounded, the regulator shall limit the generator output to 195 15 A throughout the operating ambient temperature range of -65 to 220F
42、 (-53 to 104C), and a generator speed of 3000 rpm. b. With pin E of the regulator battery connector grounded, the regulator-generator system shall produce no less than 150 A output current within the temperature adjusted voltage regulation range at a generator speed of 3000 rpm. c. With pin E of the
43、 battery connector ungrounded, the regulator shall limit the generator output to 400 20 A throughout the operating ambient temperature range of -65 to 220F, and a generator speed of 5500 rpm. d. With pin E of the battery connector ungrounded, the regulator-generator system shall produce no less than
44、 350 A within the temperature adjusted voltage regulation range at a generator speed of 5500 rpm. e. The regulator shall attain stable current regulation in the current limit mode within 0.3 second of load application as shown in figure 3. f. The regulator shall attain stable voltage regulation upon
45、 load release within 0.3 second after entering the lower voltage regulation limit of 27.3 V as shown in figure 3. g. In the current limit mode, the frequency of oscillation of the dc voltage shall have a period of less than 14 ms (see t in figure 3) and a peak-to-peak value (see v in figure 3) of le
46、ss than 10 percent of the dc voltage. 3.9.5 Overvoltage. The regulator shall incorporate an overvoltage protection scheme to protect the regulator-generator system from any failure in the regulator which will cause the regulator to be turned “full on.” The overvoltage portion of the regulator shall
47、deactivate the generator when the system voltage reaches a value of 33 1 V. Overvoltage reaction time shall be not less than 0.25 second and not more than 1 second. This criteria shall be met with pin E of the battery connector both grounded and ungrounded. Reset shall be manual and located on the r
48、egulator (see 4.6.1.1.5). 3.9.6 Field excitation. The regulator shall be activated and begin to regulate when the generator residual voltage increases above 0.7 V with pin E of the battery connector both grounded and ungrounded (see 4.6.1.1.6). Provided by IHSNot for ResaleNo reproduction or network
49、ing permitted without license from IHS-,-,-MIL-PRF-62528B(AT) 7 3.9.7 Field circuit. The regulator shall be protected against any inductive energy that may be applied as a result of opening switch S1 shown in figure 4. Subsequently, the regulator shall meet the requirements of 3.9.2 (see 4.6.1.1.7). 3.9.8 Negative voltage operation. The regulator shall not be damaged by the applic
