1、AMSC N/A FSC 5950 MIL-PRF-27/56G 6 January 2012 SUPERSEDING MIL-PRF-27/56F 11 November 2011 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, POWER, 25 VOLT AMPERES, 400 HZ This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring
2、 the transformers described herein shall consist of this specification and MIL-PRF-27. CONFIGURATION A FIGURE 1. Dimensions and configuration. INCH-POUND 1115 V400 H z23 4 5 MAX W.V. “X“ VMAX ALT 70,000(SEE TABLE I FOR VALUE OF “X“CIRCUIT DIAGRAM AND MARKING0.097 MAX .312MAX1.375 .031.344 .0311.375
3、.031 .312 MAX .164-32 UNC-2A2-MTG. STUDS.234 DIA. MAX.125 “X“ VOLTAGE CT“X“ mA OR A1.000 .031 .250 .250 .250 1 2 3 5 4 Inches mm .031 0.79 .097 2.46 .125 3.18 .164 4.17 .234 5.94 .250 6.35 .312 7.92 .344 8.74 1.000 25.40 1.375 34.92 Provided by IHSNot for ResaleNo reproduction or networking permitte
4、d without license from IHS-,-,-MIL-PRF-27/56G 2 CONFIGURATION B NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Tolerance on terminal position dimensions is .015 (0.38 mm). 4. Marking shall be on the side of the case. 5. Terminals are color coded
5、for permanent identification in addition to terminal marking shown. 6. Secondary electrical values shall be marked as specified in table I, as applicable. FIGURE 1. Dimensions and configuration - Continued. .125 “X“ VOLTAGE CT“X“ mA OR A1.000 .031 .250 .250 .250 1 2 3 5 4 1115 V400 H z234 5 MAX W.V.
6、 “X“ VMAX ALT 70,000(SEE TABLE I FOR VALUE OF “X“ CIRCUIT DIAGRAM AND MARKING 0.097 MAX .312MAX1.125 .031.344 .0311.375 .031 .312 MAX .164-32 UNC-2A2-MTG. STUDS.234 DIA. MAXInches mm .031 0.79 .097 2.46 .125 3.18 .164 4.17 .234 5.94 .250 6.35 .312 7.92 .344 8.74 1.000 25.40 1.125 28.58 1.375 34.92 P
7、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/56G 3 REQUIREMENTS: (When numbers in parentheses i.e. (1-2) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: See table I. Primary voltage (1-2
8、): 115 volts 10 percent, 400 Hz 5 percent. Design and construction: Dimensions and configuration: See figure 1. Weight: 4.95 ounces, maximum. Duty cycle: Continuous. Case: Metal enclosed (configuration A) or epoxy fiberglass enclosed (configuration B). Material: Steel (configuration A) or epoxy fibe
9、rglass (configuration B). Altitude: 70,000 feet, maximum. Operating temperature range: -55C to +130C maximum. Terminals: Feed thru. Terminal height: .312 inch (7.92 mm), maximum. Terminal strength: Method 211 of MIL-STD-202, test condition A, 5 pounds. Dielectric withstanding voltage: At sea level:
10、2.8 times the maximum working voltage specified in table I. At reduced barometric pressure: 1.25 times the maximum working voltage specified in table I. Electrical characteristics: No load: With 115 volts, 400 Hz across (1-2): Current in (1-2) shall not exceed 25 mA rms. Rated load: With 115 volts,
11、400 Hz across (1-2) and a resistive load with current as specified in table I in (3-5), the voltage across (3-5) shall be as specified in table I. Efficiency: 88 percent minimum at rated load. Polarity: Additive with terminals 2 and 3 connected. Regulation: 100)()()(xloadratedVoltageloadratedVoltage
12、loadnoVoltage Shall not exceed 7 percent. Phase shift: 1.0 electrical degree between primary and secondary voltage at rated load, maximum. Temperature rise: 45C, maximum with 115 volts, 400 Hz across (1-2) at ambient temperature of 85C. Vibration: MIL-STD-202, method 204, test condition D. Marking l
13、ocation: See figure 1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/56G 4 VERIFICATION: Extent of qualification: Qualification testing and approval to M27/49-44 A or B, M27/51-44 A or B, M27/53-44 A or B, M27/56-44 and M27/66-27 shall b
14、e sufficient to grant qualification approval to MIL-PRF-27/48 through MIL-PRF-27/66 inclusive, all parts. Qualification testing and approval to M27/56-44 shall be sufficient to grant qualification approval to M27/56-01 through M27/56-44. Qualification testing and approval to M27/56-88 shall be suffi
15、cient to grant qualification approval to M27/56-45 through M27/56-88. Part or Identifying Number (PIN) example: M 27/56 -01 | | | MIL specification item Specification sheet no. Dash no. TABLE I. Electrical ratings. Dash number Secondary voltage (3-5) (V rms) 3% Secondary current (3-5) (amps rms) Wor
16、king voltage (V rms max) Configuration 01 6 4.167 325 A 02 6.3 3.968 325 A 03 7 3.571 325 A 04 7.5 3.333 325 A 05 8 3.125 325 A 06 9 2.778 325 A 07 10 2.500 325 A 08 11 2.273 325 A 09 12 2.083 325 A 10 12.6 1.984 325 A 11 13 1.923 325 A 12 15 1.667 325 A 13 16 1.563 325 A 14 18 1.389 325 A 15 20 1.2
17、50 325 A 16 22 1.136 325 A 17 24 1.042 325 A 18 26 0.962 325 A 19 28 0.893 325 A 20 30 0.833 325 A 21 33 0.758 325 A 22 36 0.694 325 A 23 39 0.641 325 A 24 43 0.581 325 A 25 47 0.532 325 A 26 51 0.490 325 A 27 56 0.446 325 A 28 62 0.403 325 A 29 68 0.367 325 A 30 75 0.333 325 A 31 82 0.305 325 A 32
18、91 0.275 325 A 33 100 0.250 325 A 34 110 0.227 325 A 35 115 0.218 325 A 36 120 0.208 325 A 37 130 0.192 325 A 38 150 0.166 325 A 39 180 0.139 325 A 40 200 0.125 440 A 41 220 0.113 440 A 42 240 0.104 440 A 43 270 0.093 580 A 44 300 0.083 580 A Provided by IHSNot for ResaleNo reproduction or networkin
19、g permitted without license from IHS-,-,-MIL-PRF-27/56G 5 TABLE I. Electrical ratings - Continued. Dash number Secondary voltage (3-5) (V rms) 3% Secondary current (3-5) (amps rms) Working voltage (V rms max) Configuration 45 6 4.167 325 B 46 6.3 3.968 325 B 47 7 3.571 325 B 48 7.5 3.333 325 B 49 8
20、3.125 325 B 50 9 2.778 325 B 51 10 2.500 325 B 52 11 2.273 325 B 53 12 2.083 325 B 54 12.6 1.984 325 B 55 13 1.923 325 B 56 15 1.667 325 B 57 16 1.563 325 B 58 18 1.389 325 B 59 20 1.250 325 B 60 22 1.136 325 B 61 24 1.042 325 B 62 26 0.962 325 B 63 28 0.893 325 B 64 30 0.833 325 B 65 33 0.758 325 B
21、 66 36 0.694 325 B 67 39 0.641 325 B 68 43 0.581 325 B 69 47 0.532 325 B 70 51 0.490 325 B 71 56 0.446 325 B 72 62 0.403 325 B 73 68 0.367 325 B 74 75 0.333 325 B 75 82 0.305 325 B 76 91 0.275 325 B 77 100 0.250 325 B 78 110 0.227 325 B 79 115 0.218 325 B 80 120 0.208 325 B 81 130 0.192 325 B 82 150
22、 0.166 325 B 83 180 0.139 325 B 84 200 0.125 440 B 85 220 0.113 440 B 86 240 0.104 440 B 87 270 0.093 580 B 88 300 0.083 580 B Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/56G 6 Referenced documents. In addition to MIL-PRF-27, this docu
23、ment references the following: MIL-STD-202 The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bid
24、ders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army CR DLA - CC Navy EC Air Force 85 (Project 5950-2012-001) DLA - CC Revi
25、ew activities: Army CR4, MI Navy AS, MC, OS Air Force 19, 99 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of this information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
