DLA MIL-PRF-27 26 A-2009 TRANSFORMERS POWER 3 0 VOLT-AMPERES 400 HZ.pdf

1、AMSC N/A FSC 5950 INCH-POUND MIL-PRF-27/26A 23 September 2009 SUPERSEDING MIL-PRF-27/26 4 September 1975 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, POWER, 3.0 VOLT-AMPERES, 400 HZ This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requiremen

2、ts for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-27. 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 top of

3、the case. FIGURE 1. Dimensions and configuration. 5 DUMMY TERMINALSNO CONNECTIONS 6CIRCUIT DIAGRAM AND MARKINGS .032 DIA. TYP 1115V400 Hz23 4 57.5 5V 52 mA 1 2 4356.800.600.800.6001.062 .030 1.062 .0305 AND 6 DUMMYTERMINALSNO CONNECTIONS.750 .030 .250 MIN.MTG. HOLE.138-32 UNC-2B.250 MAX.Inches mm .0

4、30 .032 .138 .250 .600 .750 .800 1.062 0.76 0.81 3.51 6.35 15.24 19.05 20.32 26.97 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/26A 2 REQUIREMENTS: (When numbers in parentheses i.e. (1-2) are used, they indicate the winding and the extr

5、eme terminals of the winding.) Electrical ratings: Primary voltage: (1-2) 115 volts, 400 Hz 1 percent. Secondary current: (3-4) 52 mA. Secondary voltage: (3-4) 57.5 volts. Working voltage: (3-4) 325 volts peak. VA ratings: 3.0 volt-ampere. Design, configuration, and physical dimensions: See figure 1

6、. Duty cycle: Continuous. Case: Molded. Material: Diallyl-phthalate (GDI-30F). Terminals: Pin type, brass-hot solder dip. Height: .25 inch (6.35 mm) maximum. Weight: 47 grams, maximum. Operating temperature range: -55C to +170C. Altitude: 70,000 feet, maximum. Terminal strength: MIL-STD-202, method

7、211, test condition A, 2 pounds. Dielectric withstanding voltage: At sea level: 910 volts rms. At reduced barometric pressure (70,000 feet): 407 volts rms Electrical characteristics: No load: With 115 volts, 400 Hz across (1-2), the current in (1-2) shall not exceed 6.0 mA maximum. Rated load: With

8、115 volts, 400 Hz across (1-2) and a 52 mA load in (3-4), the voltage across (3-4) shall be 57.5 volts 3 percent. Efficiency: 75 percent minimum at rated load. Temperature rise: 20C maximum. Marking location: See figure 1. Part or Identifying Number (PIN): M27/26-01. Provided by IHSNot for ResaleNo

9、reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/26A 3 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

10、 no liability whatsoever for any inaccuracies 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. In addition to M

11、IL-PRF-27, this document references the following: MIL-STD-202 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air force 85 (Project: 5950-2009-030) DLA CC Review activities: Army AR, CR4 Navy AS, MC Air Force 19, 99 NOTE: The activities listed above were interested in this document as

12、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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-