1、MIL-R-24563 = 9999706 3074234 373 9 MIL-R-24563 (SHI 15 November 1977 MILITARY SPECIFICATION RELAY, ALTERNATING CURRENT. POWER-SENSING ThZa specification is approved for use by the Naval Sea Systems C-d and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1
2、.1 This specification covers alternating current (a.c.), power-sensing relays (see 6.4.1) using electraaagnetic devices or solid state circuitry, or a combination of both, for we on Naval ships (sea 6.1). 2. APPLICABLE DocmENTs 2.1 Issues of documents. The following documents, of the issue in effect
3、 on date of invitationforidia or request for proposal, form a part of the specification to the extent specified herein. SPECIFICATIONS MILITARY KXL-1-631 - Insulation, Electrical, Synthetic-Resin Composition, Nonrigid. MIL-S-901 - Shock Tests H.I. (High Impact) Shipboard Machinery, Equipment and MIL
4、-E-917 - Electrical Power Equipment, Basic Requirements for (Naval Ship- MIL-E-2036 - Enclosures for Electric and Electronic Equipment, Naval Shipboard. BUL-C-2212 - Controllers, Electric Motor, A.C. or D.C. and Associated Switching MIL-E-17555 - Electronic and Electrical Equipment, Accessories, and
5、 Repair Parts: Packaging and Packing of. MIL-R-19523 - Relays, Control, Naval Shipboard. Systems, Requirements for. board Use) . Devices, Naval Shipboard. STANDARDS WILITARX ML-STO-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - hvimn- MIL-STD-454 - Standard General Requirements for E
6、lectronic Equipment. MIL-STD-740 - Airborne and Structureborne Noise Measurements and Acceptance MIL-STD-1399, Section 103 - Interface Standard for Shipboard Systems-Electric mental and Type II - Internally Excited). Criteria of Shipboard Equipment. Power, Alternating Current. PWLICATXONS MILITARY N
7、AVSEA 0969-U-019-7000 - Electronic Test Equipment Application Guide. (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurament functions should be obtained from the procuring activity or a8 directed by the contracting officer.) t
8、he extent-i- Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. 2.2 Other ublications. The following document fornu a part of this specification to Beneficial coiiimants (reccmmiendations, additions, deletions) and any pertinent data v
9、hich may be of une in improving this document should be addressed to: Commander, Naval Ship Engineering Center, SEC 6124, Department of the Navy, Washington, Dc 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by
10、letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-24563 m 9999906 LO94235 ZUT m MIL-R-24563 (SHI NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA) ICs - Industrial Controls and Systems. (Application for copies should be addressed to th
11、e National Electrical Manufacturers (Technical society and technical association specifications and standards are generally Association, 155 East 44th Street, New York, NY 10017.) available for reference from libraries. They are also distributed among technical groups and using Federal agencies. 3.
12、REQUIREMENTS 3.1 Sample for first article ins ection. Prior to beginning production a sample power- sensing relay (hereinafter Zdkay) shall be examined and tested as specified in 4.3 (see 6.3). E-917, except the bragraphs, in addition to the requirements specified herein. (Whenever a requirement of
13、MIL-E-917 conflicts with a requirement of this specification, the requirement of this specification shall govern.) The following requirements of MIL-E-917 are not applicable unless required by the procurement docurttent: 3.2 General re uirements. Relay shall be in accordance with the requirements of
14、 MIL- (a) Piping systems. (b) Equipment cooled by forced air. (c) Equipment cooled by water. 3.2.1 Characteristics. Relay shall have the following characteristics, as specified (see 6.2.1) : (a) Relay shall sense real power from a 3-phaser 3-wire, 60 hertz (Hz) circuit (b) and change contact positio
15、n when preset actuation conditions are met. Power input to the relay shall consist of the voltage output of potential transformers providing 115 volt, 3-phase signal for the relay voltage coils and current signals from two current transformers, one in phase AB and one in phase CA for the current coi
16、ls of the relay or as otherwise specified (see 6.2.1). 6.4.2) with a contact rating of 10 amperes at 450 volts, 60 Kz. The contacts shall be electrically insulated from each other and from the relay input (see 3.2.8). Relay shall operate in an electric power system with characteristics of type I, 60
17、 Hz power as defined by MIL-STD-1399, section 103. Relay shall not be damaged nor shall have false operations caused by transients or other characteristics of a type I power system as defined in MIL-STD-1399, section 103. circuit if a fault occurs. Power level to actuate the relay shall be adjustabl
18、e in 5 percent increments (or lesa) or continuously adjustable between 80 and 150 percent of rated power. Adjustment markings shall be provided to approximate the adjustment setting. Relay shall reset to the normal condition when power to the relay is reduced to 75 + 5 percent of the set trip point.
19、 values shall not vary more than 5 percent of the set value (average of ten operating cycles). Calibration shall be at 40.C ambient temperature. Oper- ating point shall not change more than 3 percent of set value for each 1O.C change in ambient temperature between 10.C and 70.C. the actuating level.
20、 The time delay shall be adjustable from zero (no intentional delay) time delay to 20 second time delay in increments of 1 second or less. (c) Relay shall have two normally open and two normally closed contacts (see (d) Manentary short circuit power may be applied to the relay sensing (e) The trip a
21、nd reset (f) Relay shall be provided with adjustable time delay to occur after power reaches 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-24563 9999906 1094236 146 O a MIL-R-24563 (SE:) 3.2.2 Temperature rice (see 6.4.3). Temperature rice
22、shall not exceed the values shown in table I. TABLE I. Maximum permissible temperature based on an ambient temperature of 65OC. Name of part Bolted connections and terminal studs: Not silver plated Silver plated Class B insulation- Class F insulation- Class H insulation- Class N insuationl Solid Sol
23、id silver faced case Calculated peak junction temperature rise for discrete devices Integrated circuit devices YMeasured by resistance method. Shunt coils: Contacts : Capacitors - air within 1/2 inch of Semiconductors: Temperature rise OC 35 50 55 75 10 o 115 55 65 20 -90 Tm2/ -115 -Rated maximum op
24、erating junction temperature of the particular devices. 3.2.3 Ambient temperature (see 6.4.4). Unless otherwise specified (see 6.2.11, relay shall be designed for an ambient temperature of 65OC. 3.2.4 Endurance. The current interrupting portion of the relay (contacts) shall have a minimum life of 25
25、,000 operations at rated conditions. In addition the current interruption portion of the relay shall be capable of 100 operations interrupting 150 percent rated current. Relay shall withstand the endurance operations defined in 4.7.3 without failure. as specified in 4.7.4. 3.2.6 W. 3.2.7 Inclination
26、. Relay shall operate satisfactorily under inclined conditions defined 3.2.8 Insulation resistance. Insulation resistance between input circuits and output 3.2.5 Vibration. Relay shall meet the requirements for type I of MIL-STD-167-1, except Relay shall withstand the shock test specified in 4.7.5.
27、in MIL-E-917. circuits, between different output circuits and between input, output circuits and ground shall be not less than 10 megohms when corrected to 25OC and measured by a 500 volt insulation resistance tester. 3.2.9 Dielectric withstandin voltage. Relay shall conform to the dielectric requir
28、e- ments specified in NEMA Standard I%, section 1-109.05. 3.2.10 Duty. Relay shall be designed for continuous duty. 3.2.11 Wirinq. 3.2.11.1 External cable connections. external connections to the relay. 3.2.12 Mountinq. Components of the relay shall be mounted on a panel as a complete unit including
29、 connection block for connection to external circuits. Provisions shall be made for mounting the panel in the structure or panel of a switchboard. Permanent internal wiring and connection shall be in accordance with MIL-E-917. A terminal block shall be provided for all 3.2.13 Connection diagram. inp
30、ut and output connections and Each relay shall include a their characteristics. 3 connection diagram identifying Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-245b3 = 9999106 LO94237 082 MIL-R-24563(SH) 3.2.14 Power factor. Relay shall operat
31、e on input power levels within the limits specified in 3.2.1 lagging power factors from 0.6 to 1.00. 3.3 Detail requirements. 3.3.1 Electro-mechanical relays, when used, shall conform to MIL-C-2212 or category A or B, class I of MIL-R-19523. enclosure is required, the type of enclosure shall be as s
32、pecified (ses 6.2.1) and the enclosure shall be in accordance with MIL-E-2036. the requras for type 3, grade C equipment of MIL-STD-740. 3.3.2 Enclosures. Relay will normally be provided without an enclosure. When an 3.4 Noise. When specified (see 6.2.11, relays for low noise applications shall meet
33、 3.5 Safety. 3.6 Paintinq. Parts not fabricated of a corrosion-resisting material or having a Electrical safety shall be in accordance with requirement 1 of MIL-STD-454. corrosion-resistant treatment as defined in MIL-E-917 shall be painted as specified in MIL- E-917. Touching-up shall be permitted
34、for marks or scratches due to assembly, testing, or other handling. 3.7 Identification p1:tes. Each relay shall be provided with an identification plate containing the manufacturer s name, catalog number, National stock number (NSN) if specified (see 6.2.1), voltage and current input, and contact ra
35、ting and characteristics. The preferred location is on the front of the panel, however, the identification plate shall be visible from the front of the relay without moving any components. be brass, corrosion-resistant steel, or anodized aluminum, marked by etching, engraving, stamping, or photo-pro
36、cess. Etching, engraving, or stamping shall be not less than 0.003-inch deep. Identification plates shall be securely fastened to the relay. Where metal fasteners in accordance with MIL-E-917 are not used, adhesive-backed metal (not less than 0.010-inch in thickness) or plastic film, type G, as spec
37、ified in MIL-1-631, may be used. of the ori otherwise, the order of tests shall be at the contractors option. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-245b3 9999906 LQ9bi239 7-55 W Routine Comparison Requirement inspection inspection p
38、aragraph Examination and tests MIL-R-24563 (SH) 4.5 Quality conformance inspection. 4.5.1 Routine inspection. 4.5.2 Comparison inspection. A sample production relay shall be selected every 3 years and subjected to the comparison inspection specified in table III. Comparison inspec- tion shall be req
39、uired after any change in design which affects the performance requirements. The Naval Ship Engineering Center (NAVSEC) shall be notified of any change in design or material so a determination may be made on the extent of any verification inspection. Each production relay shall be subjected to the r
40、outine inspection specified in table III. In spect ion paragraph X X Examination Temperature rise Shock General operation Insulation resistance Dielectric withstanding Noise (when required) volt age X 3.2.9 4.7.9 _ 3.4 4.7.10 X _ _ X X - 3.2.2 3.2.6 3.2.1 3.2.8 4.6 4.7.2 4.7.5 4.7.6 4.7.8 4.6 Examin
41、ation. Relay shall be examined to determine conformance with the following: (a) Materials are in accordance with MIL-E-917 (see 3.2.1). (b) Materials used agree with material list shown on drawings. (c) Components are in accordance with requirements of this specification and the (d) Mounting dimensi
42、ons, arrangement of parts, and cable connection terminal (e) Parts requiring frequent replacement or service adjustment are easily accessible. (f) Creepage and clearance distances specified in MIL-E-917 are maintained. (9) Overall dimensions and weight conform to those shown on the drawing. (h) Iden
43、tification plates are inscribed and located as required (see 3.7). drawings. block conform to those shown on the drawing. 4.7 Test procedures. 4.7.1 Calibration. Relay shall be tested to determine if calibration meets the require- ments of 3.2.1 (e). Tests shall be made at the 80 percent setting, 11
44、5 percent setting, and 150 percent setting. The test at each point shall be repeated ten times with a record kept of each trip value and each reset value. 4.7.2 Temperature e. Test methods to be employed and the precautions to be observed in conducting temperature rise tests shall be in accordance w
45、ith NEMA Standard ICs, section 1-109.04, and the following: (a) Tests shall be conducted under conditions equivalent to normal operating conditions at rated current, rated voltage, frequency and 110 percent rated current on the current coil and rated current in the normally closed contacts to determ
46、ine conformance to the rises specified in 3.2.2. as part of the relay. during the tests. (b) Tests shall be conducted with relay in its enclosure if enclosure is provided (c) The ambient temperature in the testing area shall not vary more than 10C 4.7.3 Endurance. Relay shall be tested to determine
47、conformance with 3.2.4. The endurance test shall be performed for 8 hours per day with the relay in the de-energized condition for 16 hours per day. Endurance test operating cycle shall be at least 10 operating cycles per minute except that the 150 percent rated current operations shall be performed
48、 at one operation per minute 5 seconds on and 55 seconds off. The 150 percent rated current test shall be made at rated voltage and frequency. A.C. relay contacts shall be tested using 0.5 power factor, inductive load. The endurance test shall be performed by cycling the power to the relay voltage a
49、nd current coils between 50 percent tripping power level and 110 percent tripping power level. The following tests shall be conducted at the end of the endurance test: (a) Insulation resistance (see 4.7.8). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-24563 999990b 3094240 b77 D O MIL-R-24563 (CH) (b) Coil resistances. (c) Pickup and drop out power. (d) General operation (see 4.7.6) . 4.7.4 Vibration. Relay shall
