1、AMSC N/A FSC 5950 INCH-POUND MIL-PRF-27/343F 1 October 2010 SUPERSEDING MIL-PRF-27/343E 3 August 1994 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, POWER, 175 VOLTAMPERES, 400 HZ This specification is approved for use by all Departments and agencies of the Department of Defense. The requirements for
2、 acquiring the product described herein shall consist of this specification sheet and MIL-PRF-27. FIGURE 1. Dimensions and configurations. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/343F 2 Ltr Dimensions Inches mm G H J K L M N 2.75 .
3、015 2.71 .015 2.31 .015 2.21 .015 2.25 .015 .750 .031 1.00 .031 69.85 .0.38 68.83 .0.38 58.67 .0.38 56.13 .0.38 57.15 .0.38 19.05 .0.79 25.40 .0.79 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Marking shall be on the top and sides of the case.
4、4. Dimensional tolerance shall be .031 (0.79 mm) unless otherwise specified. 5. Dimensions G and H to be measured at top of transformer. FIGURE 1. Dimensions and configurations - Continued. Inches mm .005 0.13 .010 0.25 .080 2.03 .115 2.92 .169 4.29 .187 4.75 .200 5.08 .250 6.35 .380 8.89 .500 12.70
5、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/343F 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: Primary voltage (1-2): 115 v
6、olts rms, 400 20 hertz. Secondary voltage and current (3-5): See table I. Volt-ampere: 175 voltamperes. Working voltage (1-2): 535 volts peak. Design and construction: Dimensions and configuration: See figure 1. Duty cycle. Continuous. Case: Encapsulated. Material: Diallyl phthalate. Terminals: Turr
7、et type. Height: See figure 1. Weight: 2.2 pounds, maximum. Operating temperature range. -55 to +130C. Altitude: 70,000 feet. Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds. Dielectric withstanding voltage (each winding): At sea level: 1500 volts rms. At reduced barometric
8、pressure: 1.25 times the peak working voltage specified. Electrical characteristics: Rated load: With 115 volts rms and 400 Hz in (1-2), and rated current in secondary, the voltage across (3-5) shall be as specified in table I. DC resistance: (1-2): 0.7 ohm 25 percent. (3-5): See table I. Provided b
9、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/343F 4 Temperature rise: 45C with 115 volts rms, 400 hertz across (1-2) at an ambient temperature of 85C, full load terminals (3-5). Regulation: 100)()()(xloadratedVoltageloadratedVoltageloadnoVoltage
10、Shall not exceed 10 percent. Polarity: Additive with terminals 2 and 3 connected. Marking location: See figure 1. Part or Identifying Number (PIN): M27/343-(dash number from table I). TABLE I. Electrical ratings. Dash number M27/343- Secondary voltage (3-5) (V rms) 5% (CT) Secondary current (3-5) (a
11、mperes) Secondary DCR (3-5) (ohms) 25% 01 5.0 35.0 .0020 02 6.3 27.8 .0026 03 8.0 22.0 .0046 04 10.0 17.5 .0053 05 12.6 13.9 .011 06 14.0 12.5 .013 07 16.0 10.9 .014 08 18.0 9.7 .015 09 20.0 8.75 .017 10 22.0 7.9 .018 11 25.0 7.0 .035 12 28.0 6.25 .049 13 31.0 5.65 .052 14 35.0 5.0 .098 15 39.0 4.48
12、 .110 16 43.0 4.06 .114 17 48.0 3.65 .160 18 55.0 3.17 .196 19 63.0 2.77 .20 20 70.0 2.5 .25 21 80.0 2.18 .34 22 90.0 1.94 .38 23 100.0 1.75 .52 24 110.0 1.59 .72 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/343F 5 TABLE I. Electrical r
13、atings Continued. Dash number M27/342- Secondary voltage (3-5) (V rms) 5% (CT) Secondary current (3-5) (amperes) Secondary DCR (3-5) (ohms) 25% 25 123.0 1.42 .81 26 138.0 1.26 1.14 27 157.0 1.1 1.31 28 175.0 1.0 1.87 29 200.0 .875 2.65 30 220.0 .790 2.92 31 26.0 6.730 0.044 32 115.0 1.520 0.72 VERIF
14、ICATION: Extent of qualification: Qualification testing and approval to M27/338-26 and M27/343-30 shall be sufficient to grant qualification approval to MIL-PRF-27/338 through MIL-PRF-27/343 inclusive, all parts. Qualification testing and approval to M27/343-30 shall be sufficient to grant qualifica
15、tion approval to M27/343-01 through M27/343-32. Changes from previous issue. 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 in
16、accuracies in these notations. Bidders 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. Referenced documents. MIL-PRF-27 MIL-PRF-27/338 MIL-PRF-27/339 MIL-PRF-27
17、/340 MIL-PRF-27/341 MIL-PRF-27/342 MIL-PRF-27/343 MIL-STD-202 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air force - 85 Review activities: (Project 5950-2009-070) Army AR, CR4 Navy - AS, MC, OS Air Force - 19, 99 NOTE: The activities listed above were interested in this document as
18、 of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the 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-,-,-
