7 Acceptance/Protection Function Test Guide
D02706R02.30
L-PRO 4000 User Manual
7-17
2. Use the minimum test current to determine what voltage would be appro-
priate for this test.
From Equation (21) we can derive the formula:
And using appropriate values, the Minimum Fault Voltage is
(20)
(21)
(22)
where
V
FaultMin
- Minimum Fault Voltage
I
TestMin
- Minimum Fault Test Current
(23)
3.2
2
-------
1.6
A
=
Z
V
FaultMin
2
I
TestMin
-----------------------------
=
V
FaultMin
Z
2
I
TestMin
=
V
FaultMin
7.38
2 1.6
A
23.6
V
=
=
Содержание L-PRO 4000
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Страница 311: ...D02706R02 30 L PRO 4000 User Manual Appendix K 1 Appendix K Function Logic Diagram Diagram in plastic sleeve...
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