Freq:
Controls the Frequency of any installed voltage
(V1, V2, V3, V4) or current (I1, I2, I3, I4)
generator.
Timer Setup:
This selection will display the Timer Setup
menu.
Dynamic Enabled / Dynamic Disabled:
With the Dynamic test disabled, the user may
manually adjust the phase angle using the
control knob to determine the closing angle. The
Dynamic Enabled, the MPRT will automatically
determine closing angle and advanced closing
time for auto-synchronizing relays. See Pickup
and Advanced Closing Time Tests for more
details.
Start / Stop:
This selection will apply the set quantities
displayed and start the timer or not start the
timer depending upon Timer Start selection.
Normally used with the Dynamic Enabled button.
When the Start button is pressed the selected
voltage outputs will turn on in phase. However,
one voltage channel will start to slip out of phase
at the selected slip frequency. At the advanced
angle, based on the slip frequency, the relay will
close the breaker closing contacts, and start the
timer. When the two voltages slip back into
phase the Timer will stop. See Advanced
Closing Time Test for more details.
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.
Manual Test Menu:
This selection will return the controller to the
Manual Test Menu.
Main Menu:
This selection will return the controller to the
Main Menu:
Testing Synchronizing and Auto-Synchronizing Relays
To perform tests on synchronizing type relays requires the use of two voltage output modules.
Pick-up or Closing Angle Test:
This test is performed with Dynamic Disabled. With the
Dynamic test disabled, the user may manually adjust the phase angle using the control knob to
determine the closing angle. The output voltages, and frequency, will be the values set in the
System Configuration Screen. To perform Pick-up or Closing Angle tests let one voltage channel
be the 0° reference, i.e., V1, and let the second voltage channel provide the variable phase angle
adjustment, i.e., V2. This test requires phase angles indicated on V2 will be a
leading angle
(this
re/- 180 degree phase angle option). If the relay's closing characteristic is 20° leading, an
angle of + 20 ° will be indicated on voltage channel 2 (assuming V1 is set to the 0° reference).
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