TEST / MAINTENANCE OPTIONS
Page 62 of 67
Simul. VL1, 2, 3
400 VOLT
For Fault Simulation. Set here the required Line to Line voltages (one
setting for the three line to line voltages). No need to press the Store key.
Can be changed before or while simulation is “running”. Default value is
automatically set to LINE VOLTS (Vn) setting at system page.
Simul. I1, 2, 3
120 AMP
For Fault Simulation. Set here the required Currents. It sets the three
currents I1, I2, I3 to same value. Next two parameters allow changing of I2
and I3 simulation settings. Can be changed before or while simulation is
“running”.
Default value is automatically set to 1.2 times MOTOR FLC setting at
system page.
Simulation I2
120 AMP
For Fault Simulation. Use to change value of Simulation I2 Current (so, it
will be different from Simulation I1). Useful for testing of Unbalance and of
Unbalance Bias of Thermal model. Can be changed before or while
simulation is “running”.
Default value is automatically set to 1.2 times MOTOR FLC setting at
system page.
Simulation I3
120 AMP
For Fault Simulation. Use to change value of Simulation I2 Current (so, it
will be different from Simulation I1). Useful for testing of Unbalance and of
Unbalance Bias of Thermal overload model. Can be changed before or
while simulation is “running”.
Default value is automatically set to 1.2 times MOTOR FLC setting at
system page.
Simulation I0
0 AMP
For Ground Fault Simulation. Use to change value of Simulation I0 Current.
Can be changed before or while simulation is “running”. Useful for testing
ground fault protection. Default value is automatically set 0.
Simul. T1, 2, 3
40 °C
For RTD High Temperature Fault Simulation. Set here the required
Simulation Motor Windings Temperature. Useful for testing RTD alarms
and Trips as well as RTD Bias for Thermal Overload model. Can be
changed before or while simulation is “running”.
Default value is automatically set 40 °C.
Run Simulation ?
OFF
By setting to Start / Run, the previous voltages, currents and Temperature
values are used by the relay as if they were real actual values. Values may
be changed before or during “run time”. Useful for Testing the MPS3000 as
well as getting familiar with the relay features and operation, “on the
Engineer Table”.
Operative only during first ten hours since the MPS3000 is powered. After
that time “NOT POSSIBLE NOW” message is displayed.
To Simulate after more than ten hours, turn OFF the Auxiliary power supply,
the turn ON again.
Test Example:
When Protection Only setting at system page is set to Yes.
Setting Run Simulation to Start / Run with the default values, causes the
currents to equal 120% of rated motor current. Therefore the Start LED is
turned ON. If value of current is not changed MAX START TIME may occur
after the setting delay. If current is reduced, Run LED is turned ON and the
MPS3000 enters to running status.
View the Measured data and the Calculated data. Change Simulation I2 or
I3 to cause Unbalance. Change Simulation I0 to check Ground Fault
protection. Change Simulation T1,2,3 to check RTD faults protection. Check
Thermal Capacity value and influence of RTD and Unbalance Bias.
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