MIL-DTL-3124E(SH)
TABLE IV. First article and conformance inspection Continued.
Conformance
First
Test
inspection
article
Test
Requirement
method
inspection Group A Group B
2/
Open-circuit saturation
X
---
---
2/
Synchronous impedance
X
---
---
Transient and subtransient reactance 3/
X
---
---
Phase unbalance
X
---
---
Phase unbalance heating test 2/
X
---
---
Negative-sequence impedance
X
---
---
Voltage dip determination
X
---
---
EMI
X
---
---
1/
Short-circuit characteristic data
X
---
---
Maintainability
X
---
---
Wave shape
X
---
---
NOTES:
Observe no specified requirement.
1/
2/
Only to be performed on the first generator of a given design.
3/
Data is taken from the three-phase short circuit test.
4.4 Conformance inspection. Conformance inspection shall include the Group A and Group B tests specified
4.4.1 Sampling for group A tests. Each generator shall be subjected to the Group A tests specified in table IV.
4.4.2 Sampling for group B tests. Generators shall be selected in accordance with table V and subjected to the
Group B tests of table IV.
TABLE V. Sampling for group B tests.
Quantity of machines on contract or order (of the size design, type, and size)
Size of machine
2 to 8
9 to 15
16 to 25
26 to 40
41 to 65
66 to 110
111 to 180 181 to 300
in kW
Up to 5
4
5
6
8
10
13
17
22
6 to 25
4
4
5
7
9
12
15
19
26 to 110
3
4
5
6
8
10
13
17
111 to 460
3
3
4
5
7
9
12
15
461 to 8,000
2
3
4
5
6
8
10
13
4.4.3 Nonconformance. Failure of Group A or Group B tests shall be cause for rejection.
22
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