1、- !flIL-fl-L7249A bL . . .I,.I. . -. . E. _._ -._ . . . . . . . . _._ . I . . . . I . . : . . . . .- . , -.I_ _. . .-.- . - - II-_- -.- I_ . -_ -1 . . . . ._ . . .- .-.- - .-. -_. . -. -_ . -. .- . . . .-. 3 -.-.- 4 I -. .I . _.-_._ . . . I . .-, -.I“.- . .- _- -_-.- . . _ j 3 . _ _-_.-.-.- .- -.-I-
2、 - -. - .-. _-_-I- _-_ . . 1 I . . -. . I . I . 1 . . . y . . 1 -._ . . .- .- ., _.- .-_ _._._ . *.-._- _. . - . -?i _ ._ -. _ _. . -._-._.- . .- . _.- -I- . -.-.-.- . . . _I -.- -d.-.- . . . .II-. . ._-. _ - . . . i . -. MIL-M- 19249A(SRIpsi 6 July 1956 . SUPERSEDING - - MIL-NI- 19249(Sm) 9 January
3、 1956 MILITARY SPECIFICATION . MOTOR-GENERATORS, 300 KW DC TO AC; AC To DC SUBMARINE SERVICE 1. SCOPE 1.1 This specificahon covers 300 kilowatts (kw.) direct current (d. c.) to4 lternahing current (a. c.); a. C. to d, c. motor-generators for Naval submarine service e 2. APPLICABLE DOCUMENTS 2.1 The
4、following specifications, standards, drawings and publicatians of the issue in effect on date of i.nvitation for bids, .form a part of this specification: SPECIFICATIONS FEDERAL . FF-3-171 - Bearings, Ball, Annular (General Purpose). MI1 .WARY MIL-R-22 - Resistors, Variable (Wirebound, Power Type).
5、MIL-(2-25 - Capacitors, Fixed; Paper-Dielectric, Direct- MIL-P-116 - Preservation, Methods of. JAN-H-194 - Heaters, Electric, Air (Ship Type). Current (Hermetically Sealed .in Metallic Cases) o JAN-W-583 - Wire, Magnet. MIL-S-901 - Shockproof Equipment, Class HI (High Impact) Shipboard Appllication,
6、 Test for. kL-E-917 - Electric Power Equipment, Basic Requirements - - - for Naval Shipboard Use). -1 Equipment for Naval Shipboard Use). Electrical-insulating: Sheets, Glass Cloth, MZL-33-963 - Drawings, Production (for Electrical and Mechan MIL- P- 997 - Plastic - Mater ial, Laminated, Thermosetti
7、ne, .i- Silicone Resin. i n Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.“- MIL-M-L727A bL W 777770b 008758q 8 m. . . - . i . . “ . . - . _I . MIL-M- 19249A(SHIPS) - -.- . . MILITARY (contd.) I. . MIL-V- 1137 - Varnish, Electrical-Insulating (for
8、 Electro- . . .- “. . -. - - - . - - . .-. L-.- -. . .- . -. . . . Motive Equipment). ., MIL-G- 1140 - Glass Fiber: MIL-R- 2033 - Relays for Naval Shipboard Electrical Service. MIL-E-2036 - Enclosures for Electric and Electronic Equipment MIL-C-2174 - Controllers, Motor Starters, and Master Switches
9、 - MIL-C-2194 - Cables, Electric (?educed Diameter Types) Yarn, Cordage, Sleeving, Cloth . . _. . -. . and Tape. (Naval Shipboard Use). Direct-Current, Naval Shipboard Use. (Shipboard Use). Naval Shipboard Use. . _I._-I_-.- I.- . -. ._. .- _-_ . _- . - ._.- “.A- MIL-R-2729 - Regulator Sets, Voltage,
10、 A. C. Generator, MIL-G-3111 - Generator, Electric, Direct-Current (Naval MIL-G-3124 - Generator, Alternating-Current, 60-Cycle ._.-.-_ -. . . . Shipboard Use). (Naval Shipboard Use) . . .- . - - - -.-_.- .-._. . _ _. . -.- . - . -_ . .-. . .-. “_.IC_._._ . .- .- . _ . . MIL-1-3.505 - Insulation She
11、et and Tape, Electrical, Coil and Slot, High Temperature. MIL-P- 15037 - Plastic-Material, Laminated, Thermosetting, . . MIL-T- 15071 - Technical Manuals for Mechanical and Electri- She et s , Glass - Clo t h, Melamine- Re sin. . . . . - .- . cal Equipment. Shipboard Use). Equipment (Naval Shipboard
12、 Use). MIL-R- 15109 - Resistors and RheosWS, Shockproof (Naval MIL-R-15137 - Repair Parts for Electrical and Mechanical MIL-S- 15291 - Switches, Rotary, Snap Action, Bureau-Design. -. MIL-P- 16018 - Packaging of Switchboards, Controllers and Motor Starters (Over 40 Pounds). MIL-W- 16072 - Wire Magne
13、t, High Temperature. MIL-P- 16298 - Preservation, Packaging, Packing, and Marking . . . - . . . ._._- . - I- . _ . . - ._. . -.- “. _ -_ -.-_. . . _.- of Electric Machines Having Rotating Parts and Associated Repair Parts. MIL-M- 17060 - Motors; Alternating Current, Integral HP Ship- MIL-I- 17205 -
14、Insulation Cloth and Tape; Electrical Glass-Fiber, board Use, Varnished. . ._ ._-.- . _._-_- all laminations shall be . firmly secured to prevent chatter and magnetic hum. . (g) Ventilation fans, ducts, and vanes shall be designed to reduce aerodynamic noise to a minimum. - . . i . .-._. . .- , . _.
15、 .-. -.-.-i 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-M-192LI9A bl W 9999906 O087588 5 W MIL-M- 19249A(SHIPS) 3.1.8 Shock requirements. - The motor-generator and all associated control equipment shall b Hi shock resistant. The ho1.d.-dow
16、n bolts, feet and main . structural members of e motor generator shali be designed in accordance with figure 1. The stresses caased by shock design loads acting in the vertical athwart- ship and fore and aft direction shall not be combined. The associated equipment shall be class Hi shock resistant
17、in. accordance with Specification MIL-S-901 and all applicable equipment specificatims shown in section 2. and control equipment shall be designed to withstand externally excited vibration type I as specified in Standard MIL-STD-167. 3.1. 10 Parallel operation. - Motor-generators and control equipme
18、nt shall be suitable for parallel operation when generating either il. c. or d. c. power. Parallel operation shall be as follows: 3.1.9 Vibration. - All parts and the complete structure of the motor-generator (a) The , c. generators shall operate in parallel in accordance with kv. -a. load (reactive
19、 power) division and circulating current requirements of Specification MIL-R-2729 and in accordance with the following kw load (active power) division requirements: The actual kw. load of any genera- tor expressed as a percentage of its continuous kw. rating shall not differ from total kw. load expr
20、essed as a percent- age of the total coztinuous kw. raiing of all connected generators by more than 10 percent. The kw. and kv. -a. load sharing requirements specified herein apply for input voltage variation within the specified limit. (b) When the d. c. generators operate in parallel without the v
21、oltage regulators under load condition varying from 20 per- cent to 100 percent rated load, and varying d. c, voitage from 270 to 355 volts the difference in current supplied by generator shall not exceed 15 percent of the rated load cur- rent of th connected generators. When the d. c. genera- tors
22、operate in parallel with the voltage regulators under load condifians varying from 20 percent to 100 percent rated load and varying d. c. voltage from 270 to 355 volts . the difference in current supplied by my one d. c. genera- tor from that supplied by the other generator shall not exceed 7. 5 per
23、cent of the rated load current of the connected generators. , any one d. c. generator from that supplied by the other . . . . . . . . . ._ . . . . .- I_ .-_ . -.I _-.- -. - - . . . . _.- -_. I _. . . . . . -._. .- - . . - . . - . -, . _ . . .-_ . . . -. . . . . -.- . . i . . . - -.- . . . . ._. . .
24、_-_. . .-.- . -. ._. -.-. *. . . . . . ). . , . . . . . . . - _ . . . . . . . -. . -.- _ . . _ . t_._ ” ._)_.-_._ . -. . . . . . - .- - - . . . . _ . , , L.- . .-,- . , ,. . . ,. . / . .* . c.7 . _.- . I _._. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
25、 IHS-,-,- MiL- M - 19 2 49A (SHIPS)*- 3.1.11 Ambient temperatures. - The ambient temperature of the motor- generator and associated control equipment shall be 50“ C. 3. i. 12 Dimensions and weight. - The motor-generator ahd .associated con- trol equipment shall be as small and light as ppssible cons
26、isteQt with the perform- . ance specified herein. The mounting arrangement of motor-generator and con- trol equipment shall be as approved by bureau or agency concerned. The length, width, height and weight of the motor-generator may be lesS.than those specified as follows but shall not exceed those
27、 limits: (a) Motor-generator (complete package with heat exchanger and excter if furnished). - Lenqth 91 hches. Width 72 inches. Height 65 inches. Weight 16,000 pounds. Width 31 inches. Height 43 inches. Depth 32 inches. Weight 1000 pounds. Width 20 inches. Heiqht 42 inches. (b) Motor controller. -
28、(c) D.C. regulator.- . .MIL-M-l724A _._ . $ . . . . -e i a lqa Oafl7589 7 . . . ., . . . I ._*._._ . . , . - . . - . . . .-a -.- . _-. . _-. . _. _. . _I_.- -. . -_ _- . -. p- -.-.-. - _- . . -. . -.“ ._ - . _ I . _- . 4 ._ _. . - -.-. ._ _ 3 . . -_ ._. . I 4 3 ,- ._-_. -3 -. . 4 . -_.-.-.- I . _._l
29、. . . . 3 -.:.: ,I_ I- - 3 _._ . .! I_ - . .I _ -. .-.- _ . _-.-. “sy.=:. .: I ,: . -,.yy _._- . - . . . . . 1 . . 1 * . . r . . . . . . . . . . . . i . 1 . . . . - . . . 1 . . . -. . 1 . . . . . . . . - .- 1 _._._ . - ., “ . . 3 5 _ . . * . . . . I . . : EZectrical insulation : : All sizes : Class
30、A, B, orH: : All sizes : As required : Spec. JAN-W-583 i r or MIL-W-16072 : . as follows: Conduc tor Ground : All sizes : Mica-glass : Spec, MIL-1-3505 : Layer Tape Typing cord . Cable support Termina3 board Coil spacers Core spacers Varnish for or mL-p-17721 ing and impreg- : : baking or : silieone
31、 varnish : nating : silicone .clear : as approved by the : : baking : bureau or agency : : concerned. 3.9.5.8 Switches. - Control switches shall be in accordance with Specifi- cation MIL-S-15291. The switching of the d. c. regulator from automatic to manual shall be such that the following condition
32、s are met when in manual operation: (a) Disconnect (or short out as necessary) all power inputs (b) Isolate the d. c. regulator to prevent grounding of the to the d. c. regulator. mot.or or generator bus, except that potential trans- former primary windings need only be disconnected. . 3.9.5.9 Relay
33、s. - The use of relays sha1i.be kept to absolute minimum. Where relays are used they shall conform to Specification MIL-R-2033. 15 .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, . . MIL-M-192LI7A bl W 999790b 0087598 8 W MIL-M- 19249A(SHIPS) 3.
34、10 Resistors. - except as otherwise approved by bureau or agency concerned. 3.11 Switchboard mounted components. - The following components used in conjunction with a. c. and d, c. regulators and controls shall be mounted remote to regulator enclosures and shall be suitable for switchboard mounting:
35、 Resistors shall conform to Specification ML-R-15109 (a) A. c, and d. c. regulator adjusting rheostats. (b) Manual a. c. voltage adjusting rheostat. (c) Manual d. c. voltage (speed) adjusting rheostat. (d) Transfer switches. (e) Current transformers. (f) Stop and start push buttons. 3.12 Circuit bre
36、akers or meters. - ing equipment shall not be furnished as part of the equipment. 3.13 Onboard repair parts. - Onboard repair parts for the motor-generators and associated control equipment shall be in accordance with the applicable speci- fication for each component part. However, no repair asmatur
37、es, field coils, or armature rewind material shall be furnished. One resistor, capacitor, and rectifier of each type used in the d. c. regulator shall be furnished in each set of onboard repaia parts. One of each size of transfer switch shall also be furnished in each set of onboard repair parts. St
38、andard Navy stock numbers shall be obbined for all repair parts, whether furnished or not, in accordance with the procedure specified in Specification MIL-R- 15137, except that the reproducible copy of NAVSHIPS 4372 and 43728 shall be submitted within 10 days after .all equipment has been released f
39、or manufacture. A single copy of NAVSRIPS 4372 with additional copies of NAVSHIPS 4372A as necessary shall be submitted and list all replacement parts for the complete power supply. Submission of separate NAVSHIPS 4372 forms for each major component or piecemeal submission of any of these forms will
40、 not be acceptable. Master drawings shall be type I in accordance with Speci- fication MIL-D-963 and shall contain information required by the applicable equip- ment specifications. The d. c. regulator drawing shall contain the same informa- tio-n as required for voltage regulators by Specification
41、MIL-R-2729. In addition the contractor shall furnish -an installation drawing for the motor-generator and control equipment. These drawings shall conform to type II of Specifica- tion MIL-D-063. iristalling lhe eQuiprnerit .tG indlude wejghQ, overall dimensions (jnciding clesrance for removing parts
42、), foundation bolting detaiis, wiring details Circuit breakers, meters, or synchronie- 3.14 Drawings. - The drawings shall1 . - . . . _. . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . - /.-y. . . . . - . . MIL-M- 19249A(SHIPS) - . - . - 4.2.
43、4.3.6 High-impact shock test. - The test shall be as specified in Speci- fication MIL-S-901. The features of the test shall be as follows: (a) The required type of shock test and weight designation nf the shock test. - As required by the complete con- - -_ _- - trol panel. . fb A definition of Cgfai
44、lure to perform principal fundion”. . ., , ._ 8 . . _ . -. . . . - _-_ . . I ._._._-. ._.-.-. _ ._ . . - . . . . . . . -.- _-._ . . . _.-. -.-. _-.- - _._-_ , . -.-.-I . . a . . .f the d. c. generator shall be varied from no load to full in five approxi- mately equal steps and back to no load in sam
45、e manner. This test shall be repeated for for 280 and 355 volts. With the same regulator setting the above tests shall be repeated at 2 percent above and below rated speed. The voltages shall be read for each of the above load points to determine cDmpliance with . 3.9.2. The voltage shall be adjuste
46、d between 210 and 355 volts by means of the regulator adjusting rheostat to determine compliance with 3.9.2. 4.2.4. 3.11 Recovery. - With the d. c. generator operating at rated speed, rated had and at Ta load of 140 kw. shall be suddenly removed without any adjustment to speed z)r voltage. The volta
47、ge shall be measured by means of an oscillograph to determine compliance with 3.9.2. repeated for 350 volts. This tests shall be . Preparing activity: Navy - Bureau of Ships :r c - - - ._ ce- I 9. _- i . . _. . . .- . . - . . . . _. . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. -MIL-M-1729A bL H 7977706 0087609 9 H . . * . . . . 1 . . . . . . . . . . . I I # . + _. . 1 . SHOCK DESIGN FACTOR I ti v? WP - Y C .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
