 |
|||
|
Page Title:
Table IV - Qualification and quality conformance inspection |
|
||
| ||||||||||
|
|  MIL-T-15108C(NAVY)
#
4.3 Qualification test. Qualification tests shall be conducted at a laboratory
satisfactory to NAVSEC. Qulification tests shall consist of the examination and tests
specified in table IV.
Table IV - Qualification and quality conformance inspection.
Quality conformance
tests
Qualification
Requirement Inspection
Inspection
inspection
paragraph paragraph
Group Group Group
A
B
C
x
3.20
x
Resistance
x
4.6.1
x
Polarity
3.13
4.6.2
x
x
x
x
x
x
x
4.6.3
Ratio
x
3.12
Impedance voltage
x
x
3.29
4.6.4
x
and impedance watts
x
3.11
4.6.5.1
No-load losses
x
4.6.5.2
Total losses
3.11
x
x
x
x
3.11
4.6.6
Exciting current
3.11
Regulation
x
x
x
4.6.7
3.10
Heating
x
x
4.6.8
3.16 and
Weight and volume
x
x
x
4.6.9
3.17
x
3.14
4.6.10
Shock
4.6.10.3
x
3.14
Inspection of
transformer test
3.18
x
x
x
x
4.6.11
Dielectric strength
test
3.11
4.6.12
x
x
x
Inrush current
x
x
3.15
4.6.13
x
Short circuit
4.6.14
x
x
x
x
3.31
General examination
#
4.3.1 Sampling for qualification inspection. One representative transformer of each
of the division shown in table II shall be subjected to the qualification inspection speci-
fied in table IV. The size transformer required as representative for each division is
in table II. For the purpose of obtaining comparative data on transformer
marked with a
representative-of different manufacturer's practices it is highly desirable that all manu-
facturers submit transformers of the same capacity for test. When such practice is imprac-
ticable because the size shown will not be representative of the given division, consideration
will be given to the manufacturer's request for test of a size of transformer more representa-
tive of that division.
#
4.4 Quality conformance inspection.
#
4.4.1 Sampling for quality conformance inspection.
4.4.1.1 Sampling for group A tests.
#
Every transformer shall be subjected to the
group A tests specified in table IV.
4.4.1.2 Sampling for group B tests. Transformers selected in accordance with table V
shall be subjectied to the group B tests specified in table IV.
Table V - Sampling for group B tests.
Minimum number
Number of trans-
of transformers
formers on order
to be tested
None
1
to 30
3
31
to 65
5
66
to 110
7
111
to 180
10
181
to 300
#+
4.4.1.3 Sampling for group C tests. At three year intervals after qualification
inspection, one transformer in each of the kVA ranges of the division given in table II
shall be subjected to the group C tests specified in table IV.
8
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals