1、(INCH-PO$D- MIL-T-16 1 D(SH) 24 May 1994 SUPERSEDING .I MIL-T-l6315C(NAVY) 24 January 1955 (See 6.7) MILITARY SPECIFICATION TRANSFORMERS, POWER, STEP-DOWN (MISCELLANEOUS, NAVAL SHIPBOARD USE) This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is avai
2、lable for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers small, dry type, step-down, power transformers for use on Naval ships. 1.2 Classification. Transformers shall be of the following types, as specified (see 6.2): IL (Indicator lig
3、ht). (3.14) CC (Control circuit). (3.15) SL (Sight light). (3.16) GF (Gun and torpedo firing). (3.17) PR (Power rectifier). (3.18) TF (Torpedo firing). (3.19) SA (Special applications). (3.20) 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 SDecifications. standards. and handbooks. The follo
4、wing specifi- cations, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cit
5、ed in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 03442, 2531 Jefferson Davis Hwy., Arlington, VA 22242-5160 by using th
6、e Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. 1 1 AMSC N/A DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. FSC 5950 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
7、nse from IHS-,-,-MIL-T-l6315D(SH) SPECIFICATIONS FEDERAL PPP-F-320 Fiberboard; Corrugated and Solid Sheet J-W-1177 - Wire, Magnet, Electrical. Stock (Container Grade) and Cut Shapes. MILITARY MIL- S - 901 - Shock Tests, HI (High Impact) Shipboard Machinery, Equipment, and Systems, Requirements for.
8、ments for (Naval Shipboard Use). Equipment. Light Housings, and Indicator Light Lenses, General Specifications For. LH93. Style LH94. Equipment. MIL-E-917 - Electric Power Equipment, Basic Require- MIL-E-2036 - Enclosures for Electric and Electronic MIL-L-3661 - Lampholder, Indicator Lights, Indicat
9、or MIL-L-3661/60- Lampholder, Transformer, Light Indicator, Style MIL-L-3661/61- Lampholder, Light, Indicator (Housing), MIL-P-15024 - Plates, Tags and Bands for Identification of MIL-L-19140 - Lumber and Plywood, Fire-Retardant Treated. MIL-E-24142 - Enclosure for Electrical Fittings and Fixtures,
10、General Specifications For. MIL-E-24142/6- Enclosure, Submersible (15-Foot), Sizes 8 by 10 through 14 by 26. MIL-1-24718 - Insulating Resins Solventless, Vacuum-Pressure Impregnating, General Specification For. MIL-T-55164 - Terminal Boards, Molded, Barrier, Screw and Stud Types, and Associated Acce
11、ssories, General Specification for. STANDARDS MILITARY MIL-STD-195 - Marking of Connections for Electrical Assemblies. MIL-STD-45662- Calibration Systems Requirements. (Unless otherwise indicated, copies of federal and military specifications, and standards are available from the Navy Publishing and
12、 Printing Service Office, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents. drawings. and Dublications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise speci
13、fied, the issues are those cited in the solicitation. DRAWING NAVAL SEA SYSTEMS COMMAND (NAVSEA) NAVSHIPS S6202-73731 - Enclosure (SPT), for Gunfiring Transformers, Type GF. (Application for copies should be addressed to Commander, Portsmouth Naval Shipyard, Naval Engineering Drawing Support Activit
14、y, Code 202.2, Portsmouth, NH 03804-5000,) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take p
15、recedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.3. 3.2 General d
16、esign features. Transformers shall be of the dry type. Transformer cores shall be made of separate laminations of nonaging steel, insulated from each other when assembled. 3.2.1 Electrostatic shielding. When specified, (see 6.2), an electrostatic shield, either an aluminum or copper sheet, shall be
17、wound between the primary and secondary windings, and insulated from them. The ends of the shield shall be insulated from each other and a lead brought out from one end. 3.3 Basic requirements. Except as otherwise specified herein, transformers shall conform to MIL-E-917 and shall be of the followin
18、g insulation classifica- tion: Class 105, 130, 155, 180, 200, 220, 240, 3.3.1 Load test. Transformers shall withstand being operated at full load for 100 hours, at rated duty, under the conditions of nominal voltage, frequency and ambient temperature. 3.4 Magnet wire. Round or rectangular wire shall
19、 be in accordance with J- W-1177. 3.5 Preparation of electrical windings and core. The complete transformer shall be impregnated with a solventless resin per requirements of MIL-1-24718. The vacuum-pressure impregnation (VPI) method shall be used. After VPI process, the transformer shall receive an
20、additional varnish treatment to provide a smooth finished surface. Impregnation shall be in accordance with MIL-E-917. 3.6 Temuerature rise. The average winding temperature rise above an ambient temperature of 50 degrees C, when measured by the change of resistance method, shall not exceed the follo
21、wing values: See 4.7.3. The hot temperature rise shall be by the embedded detector method of MIL-E-917. Average winding Hot-Spot winding Insulation system temperature rises temperature rise temperature degrees C degrees C degrees C 105 130 155 180 200 220 240 45 50 75 100 120 140 160 55 80 105 130 1
22、50 170 190 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-16315D 9979906 L984725 T20 3.7 Dielectric strength. - and induced voltage tests. Dielectric strength, and induced voltage tests shall consist of the following: 3.7.1 Applied potential
23、 test. The applied potential test shall be made by applying between each winding and all other windings connected to ground a voltage from an external source in accordance with the below values when tested in accordance with 4.7.7.1. The test voltages apply to all types of transformers except the ty
24、pe PR. See 3.18.3. Applied Potential Test Voltages Nameplate voltage rating, volts O - 125 Above 125 Test potential, volts, minimum 1000 1500 3.7.2 Induced voltage test. The induced voltage test shall be made by applying between the terminals of one winding a voltage of twice the normal voltage deve
25、loped in the winding. See 4.7.7.2. This test shall not be performed on transformers with terminal voltages of less than 25 volts. 3.8 Enclosure. Unless otherwise specified, transformers shall be of open construction. When an enclosure is required (see 6.2), it shall conform to the dripproof and wate
26、rtight types of MIL-E-2036. 3.9 Leads. terminations. and markinns. - 3.9.1 Leads. Coil take-off wires for primary and secondary connections may be stranded or wire of coil winding leads. Wire of coil winding leads may be used only where connections are to be made to terminal boards or terminal posts
27、, and must be at least number 18 AWG. Only stranded leads shall be used where there are no connections to be made, and the stranded leads themselves are to be used as leads. Connection wires whether used with terminal boards, terminal posts or terminal leads shall be adequately insulated and secured
28、 to the windings in such a manner that they will not become loosened or damaged by vibration or shock. The sheath used for lead wires shall be a tough grade and such that the effect of aging will be negligible. No braid or other covering shall be used as an outer sheath. 3.9.2 Terminations. Inegral
29、terminal boards conforming to MIL-T-55164 shall be provided when available for the wire size used. When a terminal board cannot be used, the magnetic component windings shall be terminated at terminals or other acceptable means. Leads 10 AWG or smaller shall be provided with sufficient slack for two
30、 replacements of the terminal lug. 3.9.3 Markinps. At the point on the transformer where the lead wire enters the case, or where terminal boards or terminal posts are located, the primary and secondary leads and their respective voltages shall be clearly marked. Markings shall be made in such a mann
31、er that they will not become obliterated in service, and shall be in accordance with MIL-STD-195. 3.10 Designation and marking. 3.10.1 Identification plates. Identification plates and other designating markings shall be in accordance with MIL-P-15024, except that plastic material shall not be used.
32、These plates shall be placed in a readily accessible position where they can be read at all times without danger to personnel. Where identifi- cation plates are not practicable, the identifying information may be marked in a permanent manner on the case core or cover. 4 Provided by IHSNot for Resale
33、No reproduction or networking permitted without license from IHS-,-,-MIL-T-Lb3LSD m 9999906 L984926 967 m MIL-T-l6315D(SH) 3.10.2 Identification plate markinm. - Identifying data shall include the following items: (a) Manufacturers name, identification symbols, serial number and date of manufacture.
34、 (b) Salient design characteristics, namely: type, or model, capacity, volt-amperes (VA), frequency, primary voltage, secondary voltage and the specification number under which purchased. ly three-eights inch in diameter.) (c) Blank space for inspectors official stamping. (Stamp approximate (d) Gove
35、rnment stock number. (e) Government contract number. 3.11 Shockproofness. Transformers shall withstand the high impact shock test specified in MIL-S-901 without mechanical damage or electrical failure of parts. 3.12 Short circuit. For GF and TF types only. Transformers shall withstand the short test
36、 specified in 4.7.6.1 and followed immediately by the insulation resistance test specified in 4.7.6.2. 3.13 Insulation resistance. Transformers shall meet the insulation resistance test in 4.7.6.2. 3.14 Type IL (indicator light). - 3.14.1 Ratinq. Transformers shall be capable of operating continuous
37、ly with rated voltage impressed across the primary and rated output on the secondary without exceeding the limiting temperature rise specified in 3.6. The standard ratings shall be as follows: Voltage ratio Volt-ampere output 450/4/2 117/4/2 0.8 and 0.4 0.8 and 0.4 3.14.2 Voltage regulation. With ra
38、ted voltage impressed on the transformer primary, the secondary voltage shall be 2.0 . Transformers shall have winding voltages, frequency and output ratings as required by the ordering activity (see 6.2). They shall perform the maximum designed duty without exceeding the temperature rise specified
39、in 3.6. 3.20.2 VoltaRe regulation. The voltage regulation of the transformers shall be as specified by the ordering activity (see 6.2). 3.20.3 Mounting and construction. The transformer mounting shall be as specified by the ordering activity (see 6.2). Transformers of open type construc- tion shall
40、be furnished with adequate protection against electrical shock, mechanical damage and moisture by the equipment in which they are used. 3.21 Workmanship. Metal surfaces shall have a smooth finish, and all details of manufacture, including the preparation of parts and accessories, shall be in accorda
41、nce with the best of practices for high quality electrical equipment. Particular attention shall be given to neatness and thoroughness of wiring, varnish impregnation uniformit over coils and core, marking of parts, transformer plates and final surface finis x es, riveting, welding, clearances betwe
42、en connec- tions and ease with which connections can be made, ruggedness of construction, and suitability of the enclosure, when required, for its intended use. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-Lb3LSD 99944Ob L984930 398 4. QU
43、ALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or
44、purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such in
45、spections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibilitv for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection
46、system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as
47、 part of the manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor-does it commit the Government to accept defective material. 4.1.2 Test equipment and ins
48、pection facilities. Test and measuring equipment and inspection facilities of sufficient accuracy, quality and quantity to permit performance of the required inspection shall be established and maintained by the inspection facility. The establishment and maintenance of a calibration system to contro
49、l the accuracy of the measuring and test equipment shall be in accordance with MIL-STD-45662. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) First article inspection (see 4.3) (b) Quality conformance inspection (see 4.4) 4.3 First article inspection. First article tests applicable to types GF and TF only shall be conducted at a laboratory designated by NAVSEA (see 6.2). When first article tests are conducted at the contra
