NAVY MIL-STD-2037 CHG NOTICE 1-1991 ELECTRIC MOTOR SEALED INSULATION SYSTEMS PROCEDURE TO OBTAIN CERTIFICATION FOR《获得证明程序的电动机密封绝缘系统》.pdf

1、/INCH-POUND) MIL-STD-2037 26 July 1991 MILITARY STANDARD PROCEDURE TO OBTAIN CERTIFICATION FOR ELECTRIC MOTOR SEALED INSULATION SYSTEMS AMSC N/A FSC 6105 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permi

2、tted without license from IHS-,-,-MIL-STD-2037 CHG NOTICE 3 bL m 9999933 0304753 O m I INCH-POUND I NOTICE 1 23 OCTOBER 1991 MIL-STD-2037 MILITARY STANDARD PROCEDURE TO OBTAIN CERTIFICATION FOR ELECTRIC MOTOR SEALED INSULATION SYSTEMS TO ALL HOLDERS OF MIL-STD-2037: 1. THE FOLLOWING PAGES OF MIL-STD

3、-2037 HAVE BEEN REVISED AND SUPERSEDE THE PAGES LISTED: - NEW PAGE DATE SUPERSEDED PAGE DATE 11 23 OCTOBER 1991 11 26 JULY 1991 2. RETAIN THIS NOTICE AND INSERT BEFORE TABLE OF CONTENTS. O 3. Holders of MIL-STD-2037 will verify that page changes and additions indicated above have been entered. This

4、notice page will be retained as a check sheet. This issuance, together with appended pages, is a separate publication. Each notice is to be retained by stocking points until the military handbook is completely revised or canceled. Preparing activity: Navy - SH (Project 6105-0171) AMSC NIA FSC 6105 D

5、ISTRIBUTION STATEMENT A. Approved for public release: distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2037 26 July 1991 FOREWORD 1. This military standard is approved for use by a the Department of Defense. 2. Benef

6、icial comments (recommendations, additions data which may be of use in improving this document 11 departments and agencies of , deletions) and any pertinent should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, .Washington, DC 20362-5101 by using the self-ad

7、dressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CONTENTS Page Paragraph 1 . SCOPE . 1.1 Scope . 1 1 2 . 2.1 2.1.1 2.2 2.3 APPLICA

8、BLE DOCUMENTS Government documents . Non-Government publications Order of precedence Specifications. standards. and handbooks . 1 1. 1 1 2 3 . DEFINITIONS 2 4 . 4.1 4.1.1 4.2 GENERAL REQUIREMENTS Certification . Recertification Certification procedure 5 . 5.1 5.1.1 5.1.2 5.1.2.1 5.1.2.2 5.1.2.3 5.1.

9、2.3.1 5.1.2.3.2 5.1.2 3.3 5.1.2.4 5.1.2.4.1 5.1.2.4.2 5.1.2.4.3 5.1.2.4.4 5.1.2.4.5 5.1.2.4.6 5.1.2.4.7 5.1.2.5 5.1.2.6 5.2.1.7 5,1.2.8 5.1.2.9 5.1.2.10 5.1.2.11 5.1.2.12 5.1.2.13 5.1.2.14 5.1.3 5.1.4 DETAILED REQUIREMENTS . Sealed insulation system report Format Contents . Referenced documents . .R

10、efurbishment . Incoming inspection Stripping and cleaning . Core testing . Materials . Auxiliary materials Asbestos . Varnish and resin . Insulation Lead wire . Title page Material usage Material quality . Coil manufacture . Winding and insulation Electrical test after winding . Varnish treatments E

11、lectrical test after varnishing . Test equipment Electrical test methods Squirrel cage rotor treatment . Inspection system . Flowchart Sealed insulation - quality assurance report . Information plate . 2 2 3 3 3 3 3 3 4 4 6 7 7 7 7 7 7 7 7 8 8 8 9 9 10 13 13 13 13 13 iii Provided by IHSNot for Resal

12、eNo reproduction or networking permitted without license from IHS-,-,-Paragraph Figure 1 . 2 . 3. 4 . 5 . 6. 7 . . 8. 9 . 10 . Table I . 5.2 5.2.1 5.2.2 5.2.2.1 5.2.2.2 5.2.2.3 5.2.2.4 5.2.2.5 5.2.2.5.1 5.2.2.5.2 5.2.3 5.2.3.1 5.2.3.2 5.2.4 5.2.5 5.2.5.1 5.2.5.1.1 5.2.5.2 5.2.5.2.1 5.2.5.2.2 5.2.5,2

13、,3 5.2.5.3 5.3 MIL-STD-2037 26 July 1991 CONTENTS . Continued Page Sample motor report Format Contents . Titlepage Referenced documents . Motor data Test procedures Test data . Cured resin sample Coil and lead cable sections . Sample motor . Multiple motor testing Sample motor size and number . Samp

14、le motor electrical test requirements . Test procedures . Standardization test Acceptance criteria Submergence test . Acceptance criteria Wound assembly energization Shock test . Large motor test . Preparation for submergence 6 . NOTES . 6.1 Intended use . 6.2 Issue of DODISS 6.3 Data requirements .

15、 6.4 . Subject term (key word) listing FIGURES Insulation resistance . temperature nomograph . Surge comparison test diagrams Sample quality assurance report Sample incoming inspection report Sample initial tests report Sample refurbishment report: . Sample electrical tests (after winding) report Sa

16、mple submergence test report . Sample varnish treatments report . Sample final electrical tests report . TABLE . . Sample motor size and number c iv 1.3 13 13 14 14 14 . 14 14 14 14 g 15 15 15 15 16 16 16 16 16 17 17 18 18 18 18 18 11 12 19 20 22 24 25 27 30 31 Provided by IHSNot for ResaleNo reprod

17、uction or networking permitted without license from IHS-,-,-MIL-STD-2037 61 9999933 OLOLB32 3 -. , -3 e 4 c e O 1. SCOPE 1.1 Scope. This pole motors. MIL-STD-2037 26 July 1991 standard applies to random wound, form wound, and salient 2. APPLICABLE DOCUMENTS 2.1 Government documents, 2.1.1 Specificat

18、ions, standards, and handbooks. The following specifi- cations, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of.these documents are those listed in the issue of the Department of Defense Index of Specifications and Stand

19、ards (DODISS) and supplement thereto, cited in the solicitation -(see 6.2). SPECIFICATIONS . MILITARY MIL- S - 901 - Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements for, Equipment. for. -. 150C, 1000 Volts. 150C, 1000 Volts, Glass-Braid Covering, Abrasion Re

20、sistant. Solvent Containing. (Unless otherwise ind.icated, copies of federal and military specifications, MIL-P-15024 - Plates, Tags and Bands for Identification of MIL-W-16878 - Wire, Electrical, Insulated, General -Specification MIL-W-16878/30 - Wire, Electrical, Silicone Rubber Insulated, MIL-W-1

21、6878/31 - Wire, Electrical, Silicone Rubber Insulated, MIL-I124092 - - Insulating: Varnish, Electrical, Impregnating, standards, and handbooks are. available from the Standardization Documents Order Desk, BLDGt 4D, 700 Robbins Avenue, Phladelphia, PA 19111-5094.) i - 2.2 Ndn-Government publications.

22、 The fol-lowing document(s) form a part of this document to the extent specified herein. Unless otherwise specified,.the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed

23、 in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) I -.L.L.J(), usmg the same pass-Laf; L.LfLCILIY. 5.1.2.4 Materials. The report shall identify the materials to be used in the sealed insulation system, The identifica

24、tions shall include the materials name, manufacturer, size, thickness, quantity, and designated use, as applicable. The designated uses include but are not limited to: Slot wedge Slot cell Phase insulation Coil insulation Tapes Tie cords and ropes Banding material Magnet wire Lead wire Sleeving EPOX

25、Y compounds Adhesives and sealing compounds Varnishes Pole insulation 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-; MIL-STD-2037 61 9999933 0103838 2 MIL-STD-2037 26 July 1991 5.1.2.4.1 Auxiliary materials. The report shall identify the auxilia

26、ry materials to be used in the sealed insulation system such as temporary tapes, masking compounds, release agents, and so forth. Identify these materials by use, material designation, and manufacturer, 5.1.2.4.2 Asbestos, Asbestos and asbestos containing materials shall not be used. 5.1.2.4.3 Varni

27、sh and resin. The report shall identify the material - designation, manufacturer, and manufacturers designation for solvent type varnishes, solventless epoxy resins, and sealing compounds used in the sealed insulation system. (a) Solvent type varnishes shall be in accordance with MIL-1-24092 non-sil

28、icone type varnishes class 155; grade CB or CBH. Class 180 may also be used, (b) Solventless epoxy resins shall be rated following data shall be submitted: class F (155”C), the (1) Descriptive characteristics of resins. (2) Data sheet showing viscosity, film build, gel time, storage (3) Method of ap

29、plication listing temperature limits for best life, cure cycle, hardness, tensile strength, and elongation. viscosity conditions. (c) Resin and varnish should be selected to provide adequate plasticity to prevent the formation and propagation of cracks in the cured winding. These cracks, while diffi

30、cult to detect visually, may cause reductions in insulation resistance during submergence testing. 5.1.2.4.4 Insulation. Insulating materials shall have a minimum temperature rating of class F and shall be selected to facilitate varnish penetration and wetting of the winding and insulation. Calendar

31、ed material and material with sizing should be avoided. 5.1.2.4.5 Lead wire. Nonventilated motors using commutators or slip rings shall not use silicone lead wire. Other motors may use silicone lead wire in accordance with MIL-W-16878 and MIL-W-16878/30 or MIL-W-16878/31. 5.1.2.4.6 Material usage. T

32、he report shall identify the frame sizes applicable to materials whose use is restricted to less than the full range of motor frame sizes covered by the report. 5.1.2.4.7 Material aualitv. The report shall describe storage and quality assurance procedures used to ensure that Navy approved materials

33、are kept segregated from non-approved materials and that only Navy approved materials are used on Navy motors. 5.1.2.5 Coil manufacture. The report shall include a description of the coil winding procedures. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

34、IHS-,-,-MIL-STD-2037 26 July 1991 5.1.2.6 Windinn - and insulation. Step-by-step winding procedures shall be included in the report. The procedures shall address the facilitys methods of compliance with the following winding requirements. (a) Individual stator coils shall be continuously taped in th

35、e end turn regions, iron-to-iron. The taping shall extend into the slots a minimum of 1/2 inch, end of the core. (b) The slot insulation shall extend a minimum of 3/8 inch beyond each (c) Slot liners shall be folded under the wedges. (d) Phase insulation and slot fillers should be used as required,

36、(e) Varnish shall be excluded from the strands of lead wire to ensure lead flexibility, Lead wire to coil connections shall be sealed and insulated prior to vacuum pressure impregnation (VPI). (f) Felt or mat type materials shall not be used on exposed surfaces since a rough surface finish after var

37、nishing collects contaminants and is virtually impossible to clean. 5.1.2.7 Electrical test after winding. The report shall describe the electrical tests performed on the wound assembly prior to varnishing, The following tests shall be included and shall be performed as specified in 5.1.2.11. The te

38、st results .shall be recorded. (a) Insulation resistance at 500 volts direct current (Vdc): With the winding dry and clean, insulation resistance is a measure of insulation integrity in proximity to the core (ground). The end turn areas are insulated-from ground by the surrounding air. The mifiimum

39、acceptable insulation.resistance for finished motor windings dry, after submergence is 1000 megohms corrected to 25C. It is recommended that the Pnsulation resistance, measured prior to varnishing be.equa1 to or greater than 1000 megohms. the rated motor voltage, (b) DC high potential.proof test at

40、1.6 x (2E + 1000) VOLTS, where E is (c) Surge comparison test at 5000 volts. (d) Repeat insulation resistance at 500 Vdc. 5.1.2.8 Varnish treatments. The report shall describe the varnish treatment procedures. The description shall include the following: (a) Varnish treatment shall be accomplished u

41、sing a solventless varnish - and the VPI process. The number of VPI cycles should be included in the report.“Th complete treatment using- one VPI cycle is preferable, however, the use ofmore than one cycle is-acceptab.le. After.VP1, a solvent-type varnish overcoat is acceptable and can ._ be applied

42、 using a dip process. . (b) , The weight of the. wound assembly shall. be recorded before,. - : varnishing and after the final bake. . . (c) The schedule and procedure for verifying the properties of the . . ., . . varnish.includi.qg the thixotropic index, percent solids, and viscosity shall be ingl

43、uded ity the repork. frame size or complexity shall be described in the report. The description should include: .- (d) Details of the VPI process along with any-variations due:to.motor 8 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(1) Preheat t

44、emperature and duration prior to placing the wound assembly in the VPI tank. (2) The vacuum shall be 3 mm of mercury (Hg) or lower. The report should include the vacuum pressure and duration of the vacuum cycle. Prior to introduction of resin, the preheat and vacuum cycles can effectively minimize t

45、he moisture content in the wound assembly (3) Resin should be introduced while maintaining a vacuum on the wound.assembly. The time interval between the start of the vacuum cycle and the introduction of resin should be included in the report. (4) The minimum pressure and duration of the pressure cyc

46、le should be included in the report. The minimum pressure shall be 90 pounds per square inch (lb/in2) gauge or greater. (e) The report shall identify the general characteristics of the VPI tank, resin storage tank, and the associated auxiliary equipment, (f) The varnish curing procedure shall be inc

47、luded in the report. The description should include the curing temperature and duration and any rotation of the wound assembly during curing. Baking time . starts from the time the iron reaches the specified temperature. A temperature detector attached to the iron shall be used. overcoat procedure a

48、s applicable. The description should include details of the preheat, drain time, and the curing temperature and duration. (g) The report shall include details of the solvent-type varnish 5.1.2.9 Electrical test after varnishing. The report shall describe the electrical tests performed on the wound a

49、ssembly after varnishing, The following tests shall be included and performed as specified in 5.1.2.11. The tests results shall be recorded. (a) Submerged insulation resistance shall be not less than 100 megohms, F corrected to 25“C, after submergence in-fresh water for 24 hours, With the wound assembly submerged, insulation resistance is a measure of insulation integrity in the slot and end turn are