3.8.2.7 Impedance Relay Angle of Torque Test Settings Screen
The angle of torque settings screen allows the operator to input the values necessary to perform
the relay angle of torque test.
Figure 37 Angle of Torque Setting Screen
•
The Pre-fault Settings button will change screens and will allow changes to meet the
manufacturer specifications. If the factory defaults are used, a one-time warning message
should be displayed to notify default values are being used.
•
The Relay Settings button will change screens and will allow changes to meet the
manufacturer’s specifications.
•
The Timer Setup screen allows the user to define how the time will be used.
•
The Fault Type determines the fault the test will perform. The accepted values are AG, BG,
CG, AB, BC, CA and ABC (Note: A, B, and C are the phases and G is ground).
•
The voltage and current generators may be enabled or disabled. The default condition has all
voltage and current generators enabled. This is indicated by a check mark in the channels
selection boxes. If the Voltage is held constant, the Stop value is expressed in Amps. If the
Current is held constant, the Stop value is expressed in Volts. The V/I Generators used in
the MPRT-8415 unit have 15 amps / 150 volts RMS limit and the MPRT-8430 unit have 30
Amps / 300 volts RMS limit. The Stop value is the fault value for the test.
•
The Start test button is used to execute the current test setup.
•
The Start, Stop and Increment values will need to be expressed as an angle in degrees. The
Increment value is used to increase the angle values from the start to the stop value. The
test needs to be performed in two directions to calculate the torque. During one test the stop
value will function as the end point. When the test is performed in the other direction the stop
value will be the starting point.
The bottom of the screen has common buttons.
File:
This selection will take the user to the File
Manager.
Batt Sim Off / Batt Sim On:
This selection will turn the Battery Simulator On
and Off.
58
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