Cirris Signature 1000HN, Руководство пользователя

Страница: 45 / 86

Section 10: Select a Test Procedure / Hipot Testing
1000HN User’s Guide / page 45
amount of energy delivered might be dangerous; therefore, the analyzer shuts off the
high voltage and fails that net, labeling it “Over Current.”
If the current surge subsides to an acceptable level, the hipot test continues. The ana-
lyzer has already calculated the maximum amount of current it will allow based on
the Insulation Resistance and Hipot Voltage option settings you’ve chosen (see
page 20). The current flow is monitored during the hipot duration you have set, to
make sure it does not exceed the maximum allowed current. If the current flow stays
below the maximum allowed current for the hipot duration, the net passes the test. If it
does not stay below the maximum allowed current, the net fails the hipot test, and the
analyzer labels it “Has Leakage.”
Note
: The analyzer does not check where the cur-
rent flows; it only knows that too much current is leaving the high voltage power sup-
ply.
If the current flow spikes above the maximum allowable current during the hipot
duration, the analyzer shuts off the high voltage, and labels the cable as having a
dielectric failure.
Time
Current
Maximum
allowable
current
Hipot Duration
Overcurrent error
Time
Current
Maximum
allowable
current
Hipot Duration
“Has Leakage” error
Time
Current
Maximum
allowable
current
Hipot Duration
Dielectric Failure