Click here to make tpub.com your Home Page

Page Title: Table XVII - Submergence test data. Sample #1 Ser. No.
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 




img
MIL-M-17059A(SHIPS)
40.5.2 One motor of each type. - Sample motors of the type specified in table XVI shall be subjected to
the following tests:
(a) Submergence test for the 1st motor. -
(1) Photographs of encapsulated stator winding shall be taken and condition of all parts noted
and recorded.
(2) Measure and record insulation resistance, capacitance, and dissipation factor in air.
(3) Submerge motor in salt water and run 500 hour test. Record and measure insulation re-
sistance, capacitance, and dissipation factor after each 50 hour period. This time may be
adjusted to suit the work day. Bearings should be replaced after each 100 hours or sooner
if inspection reveals bearing failure is imminent.
(4) Upon completion of submergence test a normal potential test shall be applied and motor
shall be inspected and condition of all parts noted and recorded. Photographs of en-
capsulated stator winding shall be taken.
(b) Temperature cycling test for the 2nd motor (stator only need be used). -
(1) Photographs of encapsulated stator winding shall be taken.
(2) Measure and record insulation resistance, capacitance, and dissipation factor in air (cold
stator).
(3) Heat sttor in an oven at 130C 3C. for a 22 hour period and measure hot insulation re-
sistance, capacitance, and dissipation factor.
(4) Remove from oven and immediately (within 5 minutes) submerge stator in chilled water
tank until winding temperature (by the resistance method) reaches 10C. (within one-half
hour). Measure insulation resistance, capacitance, and dissipation factor.
(5) Repeat 3 and 4 nineteen times.
(6) After completion of test a normal potential test shall be applied and the stator shall be in-
spected and the condition noted. A photograph of the stator shall be taken.
Table XVII - Submergence test data. Sample #1 Ser. No.
This time may be adjusted to suit the work day.
Normal potential test.
Inspection report.
Photographs.
44

Privacy Statement - Press Release - Copyright Information. - Contact Us