1、iilIL-S-16104B 27 December 1983 SUPERSEDING MIL-I-16104A 12 September 1951 (See 6.7) . _1- MILITARY SPECIFICATION SYNCHROSCOPE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers switchboard-mounted synchr
2、osccpes which indicate phase angle between two alternating current (a.c.) power sources or show within limits their relative departure from synchronism. 1.2 Classification. Lhe type designation of synchroscopes shall be fn the following form, as specified (see 6.2.1). MR 4R W 060 SY H Component SGie
3、 color Frequency unit Special - scheme response features 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 1.2.6 1.2.1 Component. Synchroscopes covered by this specification are desig- The style is designated by a two-digit number which signi- nated by the two-letter symbol “MR“. 1.2.2 Style. fies the size and shape as
4、 follows: synchroscopes shall be in accordance with the applicable plates of ANSI C39.1.) (See figures 1 and 2. Rounded-flanged 1.2.2.1 First digit. 4: 4-1/2 inch synchroscope 6: 6 inch synchroscope Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of us
5、e in improving this document should be addresped to: . Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362 by using the sel-addressed Standardization Document Improvement Proposal (DD Form 1426) ing at the end of this document or by letter. , “. FSC 6625 _- L
6、icensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Y 1 5 . 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i-l w -_ e3 Provided by IHSNot for ResaleNo reproducti
7、on or networking permitted without license from IHS-,-,-1.2.2.2 Second digit. R: Round flange S: Rectangular flange 1.2.3 .Color scheme. B: Black dial, white pointer and lettecing W: White dial, black pointer and lettering 1.2.4 Frequency response. The frequency response shall be designated by a thr
8、ee digit number-in hertz (Hz), zero-filled to the left. 1.2.5 _I_ Unit. The unit shall be “SY“ for synchroscope. 1.2.6 Special features. (When applicable.) H: High-impact (Hei.) shock 2. APPLICABLF: DOCUMENTS 2.1 Government documents. 2a2.1 Specifications and atandaxds. Unless otherwise specified, t
9、he falawing.specifications.and atandards of the issue lsted in that issue of the Department of Defense Index of SpecFEicatians and Standards (DoDISS) specified in the solicitation form a.part of this specification to the extent specified herein SPECIFICA.TIONS FEDERAL L-I?-387 MILITARY *MIL-M-14 MIL
10、-W-80 -MIL-P-llG MIL-s-901 MIL-E-917 - Plastic Sheet, Laminated, Thermosetting (For Designation Plates) . - Molding Plastics and Molded Plastic Parts, Thermo- -Window, .Observation, Acrylic Base, Antielectrostatic, - Preservatian, Methods of. - Shock Tests, H.1. (High-Impact); Shipboard Machinery, -
11、 Electric Power Equipment, Basic Requirements (Naval setting . Transparent (for Indicating Instrument). Equipment and Systems, Requirements For. Shipboard Use). MIL-G-3787 - Glass, Laminated, Flat (Except Aircraft). MEL-E45090 - Enamel, Equipment, Light-Gray, Formula No. 111. MIL-E-17555 - Electroni
12、c and Electrical Equipment, Accessories, and Repair Parts; Packaging and Packing of. 4 ir i !i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-3610LlB 66 9999906 0329202 LI (i MIL-S-16104B STANDARDS MILITARY MIL-STD-105 - Sampling Procedures an
13、d Tables for Inspection MIL-STD-108 - Definitions of and Basic Requirements for Enclo- MIL-STD-129 - Marking for Shipment and Storage. MLL-STD-130 - Identification Marking of US Military Property. MIL-STD-167-1 - Mechanical Vibration of Shipboard Equipment by Attributes. sures for Electric and Elect
14、ronic Equipment. (Type I - Environmental and Type II - Internally Excited). (Copies of specifications and standards required by contractors in connec- tion with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publi
15、cations. The following document forms a part of this specification to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) C3
16、9.1 - Requirements for Electrical Analog Indicating Instruments. (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) (Industry association specifications and standards are generally available for reference from libraries. and
17、using Federal agencies.) They are also distributed among technical groups 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specifica- tion shall take precedence. 3. REQUIREMENTS 3.1 Qualification. Synchroscop
18、es furnished under this specification shall be products which are qualified for listing on the applicable qualified products list at the time set for opening of bids (see 4.4 and 6.3). 3.2 Safety. The safety requirements shall be in accordance with the requirements of MIL-E-917. 3.3 Material. Synchr
19、oscopes shall be made of the material specified herein. However, when no definite material is specified,. a material which will enable the synchroscopes to meet the performance requirements of this specifi-. cation shall be used. Acceptance or approval of any constituent material shall not be constr
20、ued as a guarantee of the acceptance of the finished product. :*. -,- .:y I 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-16104B 3.3.1 Restricted materiahi. Material restricted for Navy use by MIL-E-917 shall not be used in the construction
21、 of synchroscopes. 3.3.2 Recovered materials. Unless otherwise specified herein, ail equip- ment and material incorporated in the products covered by this specification shall be new and shall be fabricated using materials produced from recovered materials to the meximum extent practicable without je
22、opardizing the intended use. The term “reewered materiala“ means materials which have been collected or recovered from solid waste an4 reprocessed to becone a source of raw mater- ials, as opposed t; virgin raw materials. preted to mean that the use of ueed or rebuilt products is allowed under this
23、specification unless otherwise specifically specified. None of t% above shall be inter- 3.3.3 Plastics. When applicable, the following types of plastics shall be used for construction of synchroscopes. (a) (b) (c) Platic windows shall be in accardance with MIL-W-80. Molded thermosetting plastic shal
24、l k in accordance with MIL-M-14. Laminated thermosetting plastic shall be in accordance with L-P-387 3,3.4 - Metals. 3.3*5 P Glass. Metals and the treatment of metals shall be corrosion- resistant in accordance with the requirements of MIL-E-917. Glass shall be of the shatterproof type in accordance
25、 with class 1, type I. Of MIL-G-3787. 3.4 Operating voltage and frequency. The synchroscope shall operate with sec. voltage between 105 and 125 volts (V) at the specified frequency under the reference conditions. as specif Fed in 4.3 . 1. 3.5 SensitLvity. The synchroscopes shall be sensitive to a di
26、fference of frequency between two arc. sources up to 1.5 Hz and be within 1 percent accuracy UP to 0.1 HZ. 3.6 - Cases. Synchroscope cases shall be constructed only from the mate- rials specified herein. jointe to minimize the entrance of dust and moisture. protected against corrosion in accordance
27、with MIL-E-917. The cases shall be constructed with close-fitting Metal cases shall be 3.7 Windows, Synchroscopes shall be provided with a glass or plastic window. Regardless of the type, it shall be free from discoloration, scratches, striae, or other defects which may interfere in any way with the
28、 normal reading o the indicator in daylight. sheet, spraytight and watertight windows shall conform to MIL-STD-108. When required by the applicable specification 3.8 _L Dial and pointer. 3.8.1 .I_ Dial. The dial shall be readily removable and made of stiff material firmly secured to the mounting. in
29、sure freedom from warping, fading, or othel: deterioration during the tests specified in section 4. Paper dials will be acceptable only when adequately bonded to a metal support* The material and construction shall 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
30、e from IHS-,-,-MIL-S-LbLOqB 66 7777706 OL272Oq MIL-S-16104B 3.8.1.1 Scale markings. Scale markings shall indicate when one source of a.c. is synchronous with the one to be synchronized and the speed of the incom- ing source to the one with which it is being synchronized. The words “slow“ and “fast“
31、shall indicate the speed of the incoming source with the dial pointer rotating in a counterclockwise direction for the former and a clockwise direc- tion for the latter. 3.8.2 Pointer. The pointer shall be rigidly constructed and shall not become damaged or distarted when subjected to any of the tes
32、ts of this specifi- cation. 3.9 Finish. The portion of the case exposed to view from the front ef the panel shall have a light gray finish in accordance with formula no. 111, class 2 of MIL-E-15090. shall be rendered suitably resistant to corrosion before the application of the final gray finish. Li
33、ght reflecting trimmings shall not be used. Metal cases 3.10 Identification plates. Identification and other markfng plates shall be in accordance with MIL-STD-130. 3.11 Dielectric strength. Synchroscopes shall withstand the dielectric test specified in 4.7.2 without damage or flashover. A test volt
34、age of 1900 V root mean square (Vrms) shall be applied as follows: (a) External live parts to external shield of the case. (b) (c) External live parts to exposed metal parts on the front of External live parts to metal mounting panel. indicator. 3.12 Insulation resistance. - When tested as specified
35、 in 4.7.3, the insu- lation resistance of synchroscopes shall be at least 20 megohms. a 3.13 Vibration. Synchroscopes shall withstand the vibration test speci- . fied in 4.7.4 without permanent change in indication greater than 1 percent of total deflection. 3.14 Moisture resistance. Synchroscopes s
36、hall operate freely following exposure to the moisture resistance test specified in 4.7.5. 3.15 Mounting. Mounting shall be in accordance with figures 1 or 2, or ANSI C39.1 as applicable. Attaching hardware shall be supplied. 3.16 Shock, When required (see 6.2.1), the synchroscopes shall be construc
37、ted to withstand the shock test specified in 4.7.6 or 4.7.6.1. 3.17 Voltage influence. A 7 percent voltage variation on both elements shall not produce a change of indication. A 1 percent voltage difference shall not change the indication by more than 2 degrees (see 4.7.7). 3.18 Overvoltage. The syn
38、chroscopes shall sustain the overvoltage test as specified in 4.7.8. e 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-16104D 3;19 Lig-cycle. The synchroscapes shall be made to withstand the life cycle test as specified in 4-7.9. change accur
39、acy beyond 1 percent (3-1/2 degrees). The synchroscope shall not overheat or 4. QUALITY ASSURANCE PROVISIONS 4.1 Il- Responsibility for inspection. Unless otherwise specified in the cantract di: pursliase order, the contractor is responsible for the performance of all inspection requirements as spec
40、ified herein. fied in the contract or purchase order, the conttactor may use his own or any other eacilities suitable for &he performance of the inspectioneequirements specified herein, unless disapproved by the Government. The Government reserves the right to perfarm any of the inspections set fort
41、h in the specification where such inspections are deemed necessary to assure supplies and services conform ta prescribed requirements. Except as otherwise speci- ,4.11 Inspection system. The contractor shall provide an& maintain an inspection system-and a calibrdtion system in accordance with the da
42、ta ordering document.(see 6.2.2). 4.2 Classification of inspections. The inspection requirements specified herein-are classified as follows: (a) Qualification inspection (see 4.4). (b) Comparison inspection (see 4.5). (c) Quality conformance inspection (see 4.6). 4.3 .Inspection conditions. 4-3.1 Re
43、ference conditions. Unless otherwise specffied, all inspections shall be performed in accordance Gith the reference conditions specified in 3.4 and as follaws: (a) Temperature: 23 f 2 degrees Celsius (OC). (b) Relative humfdity? Greater than 50 percent, 4.3.2 Thermal stability. Unless specieied here
44、in, synchroscopes shall be maintained-at the specified inspection temperature or not less than 2 hours to attain thermal stability before taking readings. -4.4 Qualification .inspection. Qualification tests shall be conducted at a laboratory satisfactory to the Navai Sea Systems Command (MAVSEA). Qu
45、alifi- cation examination and inspactton shall consist of the examination and tests specigied in table I in theLorder shown. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I. MIL-S-LbLOqB bb = 9999906 0329206 L MIL-S-16104B 4.4.1 Sampleion. Three
46、synchroscopes of each type designation shall be submitted for the examination and tests specifiecl in table I. TABLE I. Qu alification, comparison and quality conformance inspection. inspection Qualification inspection , Visual inspection Sensitivity Operating voltage Dielectric strength Insulation
47、resistance Vibration Moisture resistance Shock Voltage influence Overvo It age Life cycle and frequency X X X X X X X X X X X Comparison inspection n X x- X X - X X X Quality conformance inspection Require- ment para- graph 3.3, 3.6 thru 3.10 3.15 and 3.22 3.5 3.4 3.11 3.12 3.14 3.16 3.17 3.18 3.19
48、3.13 Inspec- t ion para- graph 4.6.3 4.7.1 4.7.1 4.7.2 4.7.3 4.7.4 4.7.5 4.7.6 4.7.7 4.7 e9 4.7 .a L I 4.5 Comparison inspection. Within 4 years after qualification inspection and each sFcessive 4-year period in which the synchroscope is offered for delivery thereafter, one synchroscope shall be sub
49、jected to the comparison inspection specified in table I. a 4.6 gality conformance inspection. Each production synchroscope shall be subjected to .the quality conformance inspection specified in table i. 4.6.1 Inspection lot. Al1 synchroscopes of the same type presented at one time shall be considered a lot for purposes of acceptance inspection and tests. 4.6.2 Inspection sample. The inspection sampl
