1、AMSC N/A FSC 5950 MIL-PRF-27/66E 3 December 2010 SUPERSEDING MIL-PRF-27/66D 18 February 1986 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, POWER, 250 VOLT AMPERES, 400 HZ, ELECTROSTATIC SHIELDED This specification is approved for use by all Departments and Agencies of the Department of Defense. The
2、requirements for acquiring the transformers described herein shall consist of this specification 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 th
3、e side of the case. 5. Secondary electrical values shall be marked as specified in table I, as applicable. FIGURE 1. Dimensions and configuration. INCH-POUND Inches mm .031 0.79 .164 4.17 .250 6.35 .344 8.74 .375 9.52 .390 9.91 2.000 50.80 2.250 57.15 2.875 73.02 Provided by IHSNot for ResaleNo repr
4、oduction or networking permitted without license from IHS-,-,-MIL-PRF-27/66E 2 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): 115 volts 10 percent, 400 Hz 5 p
5、ercent. Design and construction: Dimensions and configuration: See figure 1. Weight: 30 ounces, maximum. Duty cycle: Continuous. Case: Metal enclosed. Material: Steel. Altitude: 70,000 feet, maximum. Operating temperature range: -55C to +130C maximum. Terminals: Feed thru. Terminal height: .390 inch
6、 (9.91 mm), maximum. Terminal strength: Method 211 of MIL-STD-202, test condition A, 5 pounds. Dielectric withstanding voltage: At sea level: 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. Elect
7、rical characteristics: No load: With 115 volts, 400 Hz across (1-2): Current in (1-2) shall not exceed 125 mA rms. Rated load: With 115 volts, 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
8、: 95 percent minimum at rated load. Electrostatic shielding: The voltage ratio shall be a minimum of 5 to 1 at 20 kHz. Polarity: Additive with terminals 2 and 3 connected. Regulation: 100)()()(xloadratedVoltageloadratedVoltageloadnoVoltage Shall not exceed 2 percent. Phase shift: 1.0 electrical degr
9、ee between primary and secondary voltage at rated load, maximum. Temperature rise: 55C, maximum with 115 volts, 400 Hz across (1-2) at ambient temperature of 75C. Vibration: MIL-STD-202, method 204, test condition D. Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
10、e from IHS-,-,-MIL-PRF-27/66E 3 Marking location: See figure 1. 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 be sufficient to grant qualification approval to MIL-PRF-27/48 through MIL-
11、PRF-27/66 inclusive, all parts. Qualification testing and approval to M27/66-27 shall be sufficient to grant qualification approval to M27/66-01 through M27/66-27. Part or Identifying Number (PIN) example: M27/66-(dash number from table I). TABLE I. Electrical ratings. Dash number Secondary voltage
12、(3-5) (V rms) 3% Secondary current (3-5) (amps rms) Working voltage (V rms max) 01 26 9.62 325 02 28 8.93 32503 30 8.33 325 04 33 7.58 32505 36 6.94 325 06 39 6.41 32507 43 5.81 325 08 47 5.32 32509 51 4.90 325 10 56 4.46 32511 62 4.03 325 12 68 3.68 32513 75 3.33 325 14 82 3.05 32515 91 2.75 325 16
13、 100 2.50 32517 110 2.27 325 18 115 2.17 32519 120 2.08 325 20 130 1.92 32521 150 1.66 325 22 180 1.39 32523 200 1.25 440 24 220 1.14 44025 240 1.04 440 26 270 0.93 58027 300 0.83 580 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/66E 4 R
14、eferenced documents. In addition to MIL-PRF-27, this document references the following: MIL-STD-202 MIL-PRF-27/48 MIL-PRF-27/49 MIL-PRF-27/50 MIL-PRF-27/51 MIL-PRF-27/52 MIL-PRF-27/53 MIL-PRF-27/54MIL-PRF-27/55 MIL-PRF-27/56 MIL-PRF-27/57 MIL-PRF-27/58 MIL-PRF-27/59 MIL-PRF-27/60 MIL-PRF-27/61 MIL-P
15、RF-27/62MIL-PRF-27/63 MIL-PRF-27/64 MIL-PRF-27/65 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 notatio
16、ns. 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. Custodians: Preparing activity: Army CR DLA - CC Navy EC Air Force 85 (Project 5950-2009-043) DLA -
17、CC Review 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-,-,-
