1、Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to CommandStandardsnavy.mil, with the subject line “Document Comment”. Since contact
2、information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil. AMSC N/A FSC 5925 INCH-POUND MIL-PRF-32484 8 November 2013 PERFORMANCE SPECIFICATION PROTECTIVE RELAYS AND ATTACHMENTS, MEDIUM VOLTAGE VACUUM CIRCUIT BRE
3、AKER APPLICATIONS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 ii CONTENTS PARAGRAPH PAGE 1. SCOPE 1 1.1 Scope 1 1.2 Classification . 1 2. APPLICABLE DOCUMENTS 1 2.1 General . 1 2.2 Government documents. 1 2.2.1 Specifications, stand
4、ards, and handbooks 1 2.3 Non-Government publications . 2 2.4 Order of precedence . 2 3. REQUIREMENTS . 2 3.1 Qualification 2 3.2 General requirements . 2 3.3 Materials of construction . 2 3.3.1 Aluminum conductors 2 3.3.2 Conformal coat . 2 3.3.3 Insulation. . 2 3.3.3.1 Type 2 3.3.3.2 Creepage and
5、clearance distances . 2 3.4 Environmental performance requirements. 3 3.4.1 Temperature range. 3 3.4.1.1 Operational temperature range . 3 3.4.2 Heating limits of temperature rise for coils 3 3.4.3 Relative humidity . 3 3.4.4 Electromagnetic interference (EMI) . 3 3.4.4.1 EMI test procedures and res
6、ults 3 3.4.5 Shock. . 3 3.4.5.1 Type I protective relays 3 3.4.5.2 Type II protective relays . 3 3.4.6 Vibration 3 3.4.7 Inclined operation. 3 3.5 Electrical ratings/requirements. . 3 3.5.1 Current and voltage ratings. . 3 3.5.1.1 Standard 3 3.5.1.2 Maximum design ratings 3 3.5.1.3 Measuring input w
7、ith AC voltage rating 3 3.5.1.4 Measuring input with current rating . 3 3.5.2 AC and DC auxiliary relays. 3 3.5.2.1 DC 3 3.5.2.2 AC 3 3.5.2.3 Contact and operating ratings . 3 3.5.3 Control power inputs 3 3.5.4 Contact inputs. . 4 3.5.4.1 Externally energized . 4 3.5.4.2 Internally energized (wetted
8、) 4 3.5.5 Short time thermal withstand . 4 3.5.6 Output circuits. . 4 3.5.6.1 Make, carry, and interrupt ratings (load endurance) for tripping output circuits 4 3.5.6.2 Make, carry, and interrupt ratings (load endurance) for output circuits not rated for tripping . 4 3.5.7 Voltage spike 4 3.6 Mechan
9、ical (no load) endurance requirements. . 4 3.6.1 Mechanical (no load) endurance of relay operation . 4 3.6.2 Mechanical (no load) endurance of plug-in relays . 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 iii 3.6.3 Mechanical (no l
10、oad) endurance of relay setting controls 4 3.7 Functions. . 4 3.7.1 Protection . 4 3.7.2 Metering . 4 3.7.3 Data logger and event register 4 3.7.4 Monitoring . 5 3.7.5 Communications 5 3.7.5.1 Fiber optic 5 3.7.6 Display . 5 3.7.7 Self-check/degradation . 5 3.8 Recommended protective features/suffix
11、es . 5 3.8.1 Feature numbers. 5 3.8.2 Suffixes. . 5 3.9 Designation and markings 6 3.9.1 Location . 6 3.9.2 Identification marking 6 3.9.3 Item unique identification (IUID) 6 4. VERIFICATION 6 4.1 Classification of inspections 6 4.2 Qualification inspection . 6 4.2.1 Periodic retention of qualificat
12、ion 6 4.3 Conformance inspection 9 4.4 Comparison inspection of protective relays and attachments 9 4.4.1 Comparison test sequence 1 . 9 4.4.2 Comparison test sequence 2 . 9 4.4.3 Comparison test sequence 3 . 9 4.5 Tests . 13 4.5.1 General examination 13 4.5.2 Creepage and clearance 14 4.5.3 Voltage
13、 and current range/operating characteristics. . 14 4.5.3.1 Allowable variations from rated voltage for voltage operated auxiliary relays. . 14 4.5.3.1.1 DC auxiliary relays . 14 4.5.3.1.2 AC auxiliary relays . 14 4.5.3.1.3 Test for operation at minimum voltage . 14 4.5.3.2 Allowable variation from r
14、ated voltage and current for protective relays. . 14 4.5.3.2.1 Measuring input with AC voltage rating 14 4.5.3.2.2 Measuring input with current rating . 14 4.5.3.3 Protective relay control power inputs. 14 4.5.3.3.1 DC rated control power inputs 14 4.5.3.3.2 AC rated control power inputs 14 4.5.3.4
15、Contact inputs. 14 4.5.3.4.1 Externally energized . 14 4.5.3.4.2 Internally energized (wetted) 14 4.5.4 Insulation tests 14 4.5.4.1 Dielectric power frequency tests 14 4.5.4.2 Impulse voltage tests 14 4.5.5 Make, carry, and interrupt ratings (load endurance). . 14 4.5.5.1 Tripping output circuits 14
16、 4.5.5.2 Output circuits not rated for tripping 14 4.5.6 Auxiliary relay contact and operating ratings 14 4.5.7 Mechanical (no load) endurance. . 15 4.5.7.1 Relay operation. 15 4.5.7.2 Plug-in relays 15 4.5.7.3 Relay setting controls . 15 4.5.8 Temperature rise, relative humidity, and heating limits
17、 for coils. 15 4.5.8.1 Temperature ranges and relative humidity . 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 iv 4.5.8.2 Temperature rise for coils . 15 4.5.9 Short time thermal withstand . 15 4.5.10 Inclined operation. 15 4.5.11
18、 Shock. . 15 4.5.11.1 Type I relays . 15 4.5.11.2 Type II relays 15 4.5.11.3 Energization 15 4.5.11.4 Monitoring 15 4.5.11.5 Pass/fail criteria. . 15 4.5.12 Vibration 15 4.5.12.1 Energization 15 4.5.12.2 Monitoring 16 4.5.12.3 Pass/fail criteria. . 16 4.5.13 EMI 16 4.5.14 Voltage spike 16 5. PACKAGI
19、NG . 16 5.1 Packaging . 16 6. NOTES . 16 6.1 Intended use . 16 6.2 Acquisition requirements . 16 6.3 Qualification 17 6.4 Subject term (key word) listing. . 17 LIST OF TABLES TABLE PAGE TABLE I. Qualification inspection test sequence. 7 TABLE II. Conformance inspection test sequence. 9 TABLE III. Co
20、mparison test sequence 1. . 10 TABLE IV. Comparison test sequence 2. . 11 TABLE V. Comparison test sequence 3. 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 1 This specification is approved for use by all Departments and Agencies o
21、f the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers protective relays and attachments used with medium voltage vacuum circuit breakers for shipboard use. 1.2 Classification. Protective relays are of the following types, as specified (see 6.2). a. Type I - Type I protective rel
22、ays are hard-mounted (without shock isolators) within a hard-mounted switchboard. b. Type II - Type II protective relays are installed on shock isolators within a hard-mounted switchboard or hard-mounted within a shock isolated switchboard. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed i
23、n this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, documen
24、t users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form
25、a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-S-901 - Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirement
26、s for MIL-E-917 - Electric Power Equipment Basic Requirements MIL-DTL-15024 - Plates, Tags, and Bands for Identification of Equipment, General Specification for MIL-P-15024/5 - Plates, Identification MIL-PRF-85045 - Cables, Fiber Optics, (Metric), General Specification for DEPARTMENT OF DEFENSE STAN
27、DARDS MIL-STD-130 - Identification Marking of U.S. Military Property MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I Environmental and Type II Internally Excited) MIL-STD-202 - Electronic and Electrical Component Parts MIL-STD-461 - Requirements for the Control of Electromagneti
28、c Interference Characteristics of Subsystems and Equipment MIL-STD-1399-300 - Electric Power, Alternating Current DEPARTMENT OF DEFENSE HANDBOOKS MIL-HDBK-454 - General Guidelines for Electronic Equipment (Copies of these documents are available online at http:/quicksearch.dla.mil/ or https:/assist.
29、dla.mil.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 2 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents
30、are those cited in the solicitation or contract. INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC. (IEEE) IEEE C37.2 - IEEE Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations IEEE C37.90 - IEEE Standard for Relays and Relay Systems Associated with
31、Electric Power Apparatus (Copies of these documents are available from the Institute of Electrical and Electronics Engineers, Inc., 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331 or online at www.ieee.org.) IPC IPC-CC-830 - Qualification and Performance of Electrical Insulating Compound for
32、 Printed Wiring Assemblies (Copies of this document are available from IPC, 3000 Lakeside Drive, 309 S, Bannockburn, IL 60015 or online at www.ipc.org.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the ref
33、erences cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Qualification. Protective relays furnished under this specification shall be products tha
34、t are authorized by the qualifying activity for listing on the applicable qualified products list before contract award (see 4.2 and 6.3). 3.2 General requirements. Protective relays and attachments shall comply with the applicable requirements of IEEE C37.90 except as modified or added to by the re
35、quirements of this specification. 3.3 Materials of construction. Materials in accordance with MIL-E-917 requirements are preferred. The following materials and coatings are non-preferred and shall be identified to the NAVSEA materials Technical Warrant Holder (TWH) or TWH representative prior to the
36、 start of qualification or comparison testing: a. Insulating materials which contain halogens, e.g. chlorine, fluorine, and bromine, which evolve gases during combustion including estimated maximum weight. b. Corrosion-susceptible materials and coatings not in accordance with MIL-E-917 requirements.
37、 c. Organic materials not inherently fungus-resistant or validated to be fungus-resistant. Refer to MIL-HDBK-454, Guideline 4. d. Lead-free solder used in printed circuit boards. 3.3.1 Aluminum conductors. Aluminum conductors or terminals shall not be used. 3.3.2 Conformal coat. All circuit boards s
38、hall be conformal coated in accordance with IPC-CC-830. 3.3.3 Insulation. 3.3.3.1 Type. Insulation shall be Series C as defined by IEEE C37.90 and meet the requirements of IEEE C37.90. 3.3.3.2 Creepage and clearance distances. Unless otherwise specified (see 6.2), creepage and clearance distances sh
39、all be in accordance with MIL-E-917. Creepage and clearance distances that are not in accordance with MIL-E-917 requirements shall be identified to the NAVSEA electrical systems TWH or TWH representative prior to the start of qualification or comparison testing. Provided by IHSNot for ResaleNo repro
40、duction or networking permitted without license from IHS-,-,-MIL-PRF-32484 3 3.4 Environmental performance requirements. 3.4.1 Temperature range. 3.4.1.1 Operational temperature range. Operational temperature range at full loading as defined by IEEE C37.90 shall be 0 to +70 C. 3.4.2 Heating limits o
41、f temperature rise for coils. Temperature rise of relay coils shall meet the requirements of IEEE C37.90. 3.4.3 Relative humidity. Relays shall meet relative humidity requirements of IEEE C37.90. 3.4.4 Electromagnetic interference (EMI). Relays shall meet and demonstrate compliance with the EMI requ
42、irements of MIL-STD-461 for surface ship, below deck, metallic hull installations. 3.4.4.1 EMI test procedures and results. EMI test procedures and results shall be in accordance with the Electromagnetic Interference Test Procedures (EMITP) and Electromagnetic Interference Test Report (EMITR) requir
43、ements of MIL-STD-461. Test procedures shall be approved by the NAVSEA EMI TWH or TWH representative prior to the start of testing. Test results shall be approved by the NAVSEA EMI TWH or TWH representative. 3.4.5 Shock. 3.4.5.1 Type I protective relays. Type I protective relays shall withstand Grad
44、e A, Class I, Type C shock requirements of MIL-S-901. 3.4.5.2 Type II protective relays. Type II protective relays shall be able to withstand shock fragility testing in accordance with MIL-STD-202, Method 213B, half-sine, 11 ms, 3 axis. 3.4.6 Vibration. Relays shall withstand Type I vibration tests
45、specified in MIL-STD-167-1. 3.4.7 Inclined operation. The protective relay shall operate when inclined, forward, backward, and to each side at an angle of 30 degrees from the vertical position. 3.5 Electrical ratings/requirements. 3.5.1 Current and voltage ratings. 3.5.1.1 Standard. Standard voltage
46、 ratings shall be 120VAC or less or 125VDC or less as specified (see 6.2). Standard current for AC and DC voltage ratings shall be in accordance with IEEE C37.90. 3.5.1.2 Maximum design ratings. Maximum design voltage and current ratings as defined by IEEE C37.90 shall be as specified (see 6.2). Max
47、imum design voltage or current shall be equal to or greater than the rated voltage or current in accordance with IEEE C37.90. 3.5.1.3 Measuring input with AC voltage rating. Protective relays shall meet IEEE C37.90 requirements for measuring input with AC voltage rating. 3.5.1.4 Measuring input with
48、 current rating. Protective relays shall meet IEEE C37.90 requirements for measuring input with current rating. 3.5.2 AC and DC auxiliary relays. 3.5.2.1 DC. DC auxiliary relays shall meet the requirements of IEEE C37.90. 3.5.2.2 AC. AC auxiliary relays shall meet the requirements of IEEE C37.90. 3.
49、5.2.3 Contact and operating ratings. Contact and operating ratings as defined by IEEE C37.90 shall be as specified (see 6.2). 3.5.3 Control power inputs. Control power inputs shall meet the requirements of IEEE C37.90. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32484 4 3.5.4 Contact inputs. 3.5.4.1 Externally energized. The
