Configuring Test Plans
4-50 72A-1898 Rev. A 11/01
Monday, November 26, 2001 1:09 pm
Items that Affect
Overall EHV
Channel Behavior
The values specified for the following areas apply to all EHV channels of
that module. The Trip and Close resistor ranges always appear, and must
be set correctly, even if the resistor value measurement option is not
present.
N
OTE
An incorrect resistor range setting can result in an incorrect Wipe
calculation. The Average Velocity values may also be incorrect if
Contact Open or Contact Close was used to specify the velocity
measurement zone.
Setting the Trip Resistor Range or Close Resistor Range on any EHV
module sets the range for all EHV modules in that TDR9000.
If there is no pre-insertion resistor in parallel with the contact, the default
resistor range None is used. If the value of the resistor overlaps both
ranges, either range can be selected.
Trip Resistor Range A scrollable picklist for selecting the Trip resistor
configuration. If the resistor is not present, None
should be selected. Choices include:
•None
• 10 - 300 Ohms
• 200 - 500 Ohms
Close Resistor Range A scrollable picklist for selecting the Close resistor
configuration. If the resistor is not present, None
should be selected. Choices include:
•None
• 10 - 300 Ohms
• 200 - 500 Ohms
Capacitor Range A scrollable picklist for selecting the Capacitor
configuration. Choices include:
• 75 - 2,5000 pF
• 300 - 10,000 pF
Activates all In use checkboxes.
Deactivates all In use checkboxes.
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