DLA MIL-T-27 151 C-2012 TRANSFORMER POWER STEP-DOWN.pdf

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1、AMSC N/A FSC 5950 MIL-T-27/151C 8 June 2012 SUPERSEDING MIL-T-27/151B 13 March 1991 MILITARY SPECIFICATION SHEET TRANSFORMER, POWER, STEP-DOWN This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The complete requirements for procuring the product de

2、scribed herein shall consist of this document and the latest issue of specification MIL-PRF-27. FIGURE 1. Dimensions and configuration. Inactive for new design after 13 March 1991 INCH-POUNDProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/151

3、C 2 Inches mm Inches mm .032 0.81 .500 12.70 .062 1.57 1.000 28.40 .125 3.18 1.375 34.92 .188 4.78 1.438 36.53 .190 4.83 3.000 76.20 .312 7.92 3.375 85.72 .375 9.52 3.938 100.03.438 11.13 4.312 109.52NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3.

4、 Unless otherwise specified, tolerance on overall case dimensions is +.000, -.125 inch and tolerance on terminal positioning dimensions is .032 inch. 4. Marking shall be on the side of the case. FIGURE 1. Dimensions and configurations Continued. Provided by IHSNot for ResaleNo reproduction or networ

5、king permitted without license from IHS-,-,-MIL-T-27/151C 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): 105 volts, 50/60 Hz (with 1-3 and 2-4 connected). (1-5): 115

6、volts, 50/60 Hz (with 1-3 and 2-4 connected). (1-4): 210 volts, 50/60 Hz (with 2-3 connected). (1-5): 220 volts, 50/60 Hz (with 2-3 connected). Secondary voltage (6-7): 5 volts. Secondary current (6-7): 10 amperes. Voltampere: 50. Working voltage (peak): (1-5): 710 volts. (6-7): 6,400 volts. Design

7、and construction: Dimensions and configuration: See figure 1. Duty cycle: Continuous. Case: Metal encased. Terminals: Solder lug: (1, 2, 3, 4, and 5): NC-3 or equivalent. (6 and 7): Lundy 4780 or equivalent. Terminal height: (1, 2, 3, 4, and 5): 0.438 inch, maximum. (6 and 7): 1.000 inch, maximum. W

8、eight: 3.81 kg, maximum. Operating temperature range: -55C to +130C. Terminal strength: (1, 2, 3, 4, and 5): MIL-STD-202, method 211, test condition A, 5.0 pounds. (6 and 7): MIL-STD-202, method 211, test condition E, 18 ounce-inches. Dielectric withstanding voltage (at sea level): (1-2): 2,000 V rm

9、s. (3-5): 2,000 V rms. (6-7): 10,000 V rms. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/151C 4 Electrical characteristics: No load: With 105 volts, 60 Hz across (1-2), current in (1-2) shall not exceed 350 mA and the power in (1-2) shall

10、 not exceed 6 watts. Voltage across: (3-5): 115 volts 3 percent. (6-7): 5.45 volts, 3 percent. Rated load: With 105 volts, 60 Hz across (1-2), the voltage across (3-5) and (6-7) shall be 115 volts 3 percent and 5 volts 3 percent, respectively. DC resistance: (1-2): 9.4 ohms, maximum. (3-5): 11.1 ohm

11、s, maximum. (6-7): 0.028 ohms, maximum. Polarity: Additive, with terminals 2 and 3; and 5 and 6 connected. Temperature rise: 40C with 115 volts, rms, 60 Hz across (1-5) with (1-3) and (2-4) connected at an ambient temperature of 90C. VERIFICATION: Qualification inspection: Not applicable. Conformanc

12、e inspection: Groups A and B tests of MIL-PRF-27 shall be applicable. Marking location: See figure 1. Part or Identifying Number (PIN): M27/151-01. Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were mad

13、e. This was done as a convenience only and the Government assumes 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 t

14、o the last previous issue. Referenced documents. In addition to MIL-PRF-27, this document references the following: MIL-STD-202 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force 85 DLA CC (Project 5950-2009-091) Review activities: Army AR, CR4 Navy AS, MC, OS Air Force - 19, 99

15、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-,-,-