1、MIL-M- 19633S(SHIPS) 10 March 1967 SUPERSEDING 19 February 1964 (See 6.2) MIL-M- 19633A(SHIPS) MILITARY SPECIFICATION MOTOR-GENERATOR, 6O-CYCLE, AC TO 400-CYCLE AC (VOLTAGE AND FREQUENCY REGULATED) SHIPBOARD SEEZVICE 1. SCOPE 1.1 Scope. - This specification covers 6O-cycle, alternating current (a. c
2、. ), to 4OO-cycle, a. c., voltage 1.2 Classification. - Motor generators and associated control equipment shall be of the following type and and frequency regulated motor-geneetor power supplies for Naval shipboar? use. arrangements, as specified (see 3.5.2 and 6. i), for surface ships only. Type I
3、- General purpose. Type II - Special purpose - with voltage balance regulators. Arrangement A - With meters and switchgear. Arrangement B - Without meters and switchgear. 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invitation for .bids or request for propos
4、al, SPECIFICATIONS form a part of the specification to the extent specified.herein. FEDERAL FF-El71 QQ-1-666 - Iron Castings, Malleable. GGG-P-781 - Bearing, Ball, Annular, (General Purpose). - Wer and Puller Kit, Mechanical and Mechanical Mer Attachment, MILITARY MIL-E857 - Bolt, Nuts and Studs. MI
5、L-S -901 - Shock Tests, H. 1. (High Impact); Shipboard Machinery, Equipment and Sys- tems, Requirements For. WE-917 - Electric Power. Equipment, Basic Requirements For (Naval Shipboard Use). Mnt-D-1000/2 - Drawings, Engineering and Associated Lists. MIL-I- 1361 - Instruments, Electrical Measuring: S
6、hunts, Resistors, and Transformers MIEC-2212 - Controllers, Alternating-current, Naval Shipboard. MIL-E3743 - Brushes, Electrical, Contact; and Carbon Stock, Electrical Contact Brush. MIL-C-5015 - Connectors, Electric, “AN“ Type. MIL-9-9858 - Quaiity Program Requirements. MIL-M-9868/1 - Microfilming
7、 of Engineering Documents, S5MM, For Naval Ship Systems. MIL-M-15011 - Manuals, Equipment and Systems. Ma-S-15083 - Steel Casting (Navy). MIL-R-16109 - Resistors and Rheostats, Naval Shipboard. MIL-S -16032 - Switch, Shipboard Alarm System. MIL-M-16084 - Meter, Electrical-Indikathg (Switchboard and
8、Portable Types). MIL-1-16104 - indicators, Synchronieation. MIL-(2-17361 - Circuit Breakers, Air, Electric, Insulated Enclosure (Shipboard Use). MIL-E-17555 - Electronic and Electrical Equipment and Associated Repair Parts, Preparation MIL-D-lo00 - Drawings, Engineering and Associated Lists. (Ship a
9、nd Shore Use). or Delivery of. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-N-19b33B bL M 7799906 0087671 3 m - MIL-M- 19633B(SHIPS) SPECIFICATIONS MILITARY (contd. ) MIL-C- 17588 - Circuit Breakers (Automatic-ALB)and Switches, Toggle (Circuit
10、 Breakers, Non- MIL4 -18396 - Switches, Meter and Control, Naval Shipboard. MIL-G-18709 - Grease, Ball and Roller Bearing. MIL-W-19088 - Wattmeter, Switchboard Type, 4-1/2 inch. MIL-C-19836 - Cooler, Fluid, Industrial; Air Motor and Generator, Naval Shipboard. MIL-H-22577 - Heating Elements, Electri
11、cal, Cartridge, Strip and Tubular Type. MIL-V-23151 - Voltmeter, Expanded Scale Switchboard Type (Naval Shipboard Use). MIL-Ma3167 - Meter Frequency, Expanded Scale Switchboard Tgpe (Naval Shipboard Use), MIL-I -24137 - Iron Castings, Nodular Graphic (Ductile Iron) and Nodular Graphic (Corrosion aut
12、omatic - NLB) Air, Insulated Inclosure, 125 Volts and Below AC or DC, Naval Shipboard. Resisting, Austenitic, Low Magnetic Permeability) (For Shipboard Applica- tion). STANDARDS MILITARY MIL-STD-195 - Marking of Connections for Electric Assemblies. MIL-STD-740 - Airborne and Structureborne Noise Mea
13、surements and Acceptance Criteria of Shipboard Equipment. DRAWINGS MILITARY 9000-S6202-73075 - Switch, Rotary, Multipole, Panel Mounted, 10 Amp, 120 VAC, Single Pole 9000-S6202-73295 - Switch, Rotary, Multipole, Type 4JR, Panel Mounted, 10 Amp, 120 VAC, Blades, Type S-1JR. Rotary Action Cutout, (Cop
14、ies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contract- ing officer. ) 2.2 Other publications. - The following document forms a part of this spe
15、cification to the extent speci- fied herein. Unless otherwise indicated, the issue in effect on date of invitation for bicis or request for proposal shall apply. OFFICIAL CLASSIFICATION COMMITTEE Uniform Freight Classification Ratings, Rules and Regulations. (Appication for copies should be addresse
16、d to the Official Classification Committee, 1 Park Ave. at 33rd 3. REQUIREMENTS St., N.Y, N.Y. 10016.) 3.1 Definitions. 3.1.1 Rated condition. - The characteristics assigned to a machine for a specified output rating such as, 3.1.2 Nominal rating. - The normal constant operating condition or charact
17、eristic assigned to a ma- 3.1.8 Continuous duty. - The requirement of service that requires satisfactory operation at any con- 3.1.4 Total harmonic content. - The total harmonic content of a complex wave is the total root mean speed, voltage, frequency and current. chine when a range of operating co
18、nditions or characteristics are specified. stant load in the range of no load to full load for an indefinitely long time. square (r. m. s. ) voltage remaining when the fundamental component i6 removed. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
19、,-MIL-M-L9633B bL 999990b 0087672 5 MIL- M- 19633B(SHIPS) 5.2.6 VoUage modulaam. - The cyclic variation or random dynamic variations, or both, about an average of the a. c. peak voltage during a steay state electric-system such as caused by voltage regulation aa speed variations. The modulaaon envel
20、ope is formed by a CIUIIUOUS cwe connecting each sine wave peak to the successive sine wave peak. 3.1.6 Synchronws impedance. - The per unit direct arde synchronous impedaace epuals the ratio of the field current at rated armature current on sustained symmetrical short circuit to the field current a
21、t normal open circuit vow (w the air-gap W. 3. I. 7 Air-gap Une. - The extended straight iine part of the no-load saturation curve. 3.1.8 Deviation factor. - The ratio of the maximum ifference between corre8ponding ordinates of the wave and of the equivalent sine wave to the maximum ordinate of thee
22、quivalent sine wave when the waves are superimposed in such a way as to make this maximum ditference as small as possibie. 3.1.9 Current modulatfon. - The cyclic variation or random dynamic variations, or both, about an average of the a. c. peak uring a steady state electric-system such as caused by
23、 load and speed variations. The modulation envelope is formed by a continuous curve connecting each sine wave peak to the successive sine wave peak. 3.2 Performance requirements. - 5.2.1 Tiie mator generator shalle designed to the following characteristics: (a) Motor: (1) Voltage - 440 volts. (2) Ph
24、ase - 3. (3) Speed - 1800 revolutions per minute (r. p. m. ) synchronous, (4) Frequency - 60 cycles. (5) Type - induction. (6) Voltage and frequency variation - The motor shall operate satisfactorly with an input voltage variation of plus or minus 10 percent and an input frequency variation of plus
25、or minus 5 percent. (b) Generator: (1) Kilowatt ratings (kw) - 5, 10, 15, 30, 60, 100, 200, or 300, as specified (see 6.1). (2) utput voltage - 450 volts. (3) Phase - 3. (4) Frequency - 400 cycles. (5) Power factor - O. 8 lagging. (6) Type - Rotating field, unless otherwise specified in the contract
26、 or order. 3.2.2 Duty. - Motor generators and control equipment shall be designed for satisfactory operation over the range ofibad to full load when operating on the input voltage and frequency range specified in 3.2.1(a) 3.2.3 Ambient temperature. - The motor generators and ail associated control e
27、quipment shall be 3.2.4 Shock. - Motor generators and all associated control equipment shall be capable of withstanding 3.2.6 insulation resistance, - The insulation resistance when connected in accordance with 4.6.5 shall 3.2.6 Grounding. - Equipment shail be designed to operate satisfactorily from
28、 an ungrounded ships (6). designed for operation in an ambient temperature of 50“ Centigrade (C. ) maximum. the high impact shock test as specified for grade A class I equipment of MIL-S-901, not be less than 60 megohms for motor generators and 10 megohms for associated control equipment. power syst
29、em, but accidental grounding of this system shall not cause mal-operation. Design and con- struction shail be such that all exposed metal parts are at ground (ships hull) potential at all times; how- ever, none of the circuits of the equipment furnished shall be tied to ground, The output of the mot
30、or generator power supply shall also be designed as an ungrounded system; however, the equipment shall be designed to perform in accordance with the requirements of this specification in the event of single failure to ground and when operating with loads which may have high impedance circuits to gro
31、und such as may be caused by electromagnetic interference suppression networks. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-17633B bL W 7779706 0087673 7 MIL-M-l9033B(SHIPSJ 3.2.7 Mode of operation. - The equipment shall be designed for a
32、utomatic operation only. 3. a. 8 Source of excitation aower, - Generator excitation power may be obtained from rectified 400 cycle generator output. Power for flashing the field of the generator during startup may be obtained from the 00- cycle input power. Rotating exciters shall not be used unless
33、 the exciter outpit is rectified and fed directly to the generator field, eiiminating the need for slip rings in the motor generator. Where remote sensing is specified (see 6. i), the sensing leads shall not carry the power to supply the regulator. excitation system. When tested in accordance with 4
34、.6.16, voltage regulator shall be capable of maintain- ing the mean voltage within plus or minus 1/2 percent of rated voltage for any preset value within the range specified in 3.2.12 under the following conditions or any combination thereof: (a) Load varying between no load and rated load. (b) Load
35、 power factor varying between O. 8 iagging and unity. (c) Variation of input voltage and frequency within the range specified. (d) Variation of equipment temperature from cold at specified ambient to fuil load at specified (e) Generator voltage adjusted to any point within the range specified in 3.2
36、.12, (f ) Under the unbalanced condition specified in 3.2.20.1 (type I only). (g) Under the unbalanced conditions specified in 3.2.20.2 (type II only), 3.2.9 Voltage regulation. - Voltage regulation shall be achieved by a completely static regulator and ambient. 3.2.10 Voltage recovery time. - The t
37、ime to return and stay within plus or minus O. 5 percent of the rated value of the steady state voltage shall not exceed O. 1 second following change in an O. 8 p. f. load from no load to half load, from half load to full load, from full load to half load, and from three fourths load to one fourth l
38、oad, 3.2.11 Voltage deviation (dip or rise). - Under the conditions specified in 3.2.10, the maximum dip or rise shall not exceed 9 percent of rated voltage. 3.2.12 Regulated voltage adjustment.- Provisions shall be made to adjust the regulated voltage within the range of 5. O percent above and belo
39、w rated voltage in steps of not more than O. 2 percent of rated volt- age at any load from no load to 100 percent of rated load at rated power factor. The adjustment device shall have single knob control capable of changing output voltage of all three phases. This device shall be mounted inside of t
40、he enclosure for arrangement B in such a manner that it can be easily removed and relocated on a remote switchboard when required. 3.2.13 Frequency regulation. - Frequency regulation shall be achieved by the use of a completely static frequency regulator. When tested in accordance with 4:0.16, the f
41、requency regulator shall maintain the out- put frequency to within plus or minus O. 5 percent of rated frequency for any preset value within the range specified in 3.2.16 underthe following conditions or combination thereof. (a) Load varying between no load and rated load. (b) Load power factor vary
42、ing betwen O. 8 lagging and unity. (c) Variation of input voltage and frequency within the range specified. (d) Variation of equipment temperature from cold at specified ambient to fuil load rise at specified (e) Variation in general voltage a8 specified in 3.2.12. (f ) Generator frequency adjusted
43、to any point within the range specified in 3.2.10. ambient. 3.2.14 Frequency recovery time. - The time to return and stay within plus or minus O. 5 percent of the rated value of the steady state frequency shall not exceed O. 5 second following sudden changes in an O. 8 p. f. load from no load to hal
44、f load, from half load to full load and from full load to half load. 3.2.15 Frequency deviation, - Under the conditions specified in 3.2,14, the maximum frequency devia- tion shall not exceed.4 percent of the initial value of frequency. 3.2.10 Regulated frequency adjustment. - Provisions shall be ma
45、de to adjust the regulated frequency within the range of plus or minus 1 percent of rated frequency in steps of not more than O. 1 percent at any load from no load to full load at rated power factor and with any voltage and frequency within the specified range applied to the motor. The adjustment de
46、vice shall be mounted inside of the enclosure for arrangement B in such a manner that it can be easily removed and relocated on a remote switchboard when required. 3.2.17 Harmonic content. - From no load to full load, the r. m, s. value of the sum of ail of the har- monic components in the output vo
47、ltage wave shall not exceed 3 percent of the r. m. 8. value of the rated 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-M-L76338 61 7979906 0087674 9 MIL-M- 19633B(SHIPS) output voltage. The r. m. s. value of any single component shall not ex
48、ceed 2 percent of the r. m. s. value of the rated output voltage. Harmopics of O. 1 percent or less, or the r. m. s. value of the rated output voltage may be disregarded in the determination of the harmonic content of the output voltage wave. erating with its intended voltage regulator shall not exc
49、eed one percent of the peak to peak voltage. This re- quirement shall apply for any loads between no load and rated load and at any power factor between O. 8 (lag- ging) and unity. 3.2.19 Deviation factor, - When tested in accordance with 4.6.27, the deviation factor of the 400-cycle voltage wave shall not exceed 5 percent. 3.2.18 Amplitude modulation. - Amputude modulation af the output voltage of the generator when op- 3.2.20 Line unbalance. - The variation between line voltage
