MTS-1700 SERIES OPERATION AND REFERENCE MANUAL E-3
CU A002 15A
MANTA TEST SYSTEMS
E.3.6 Frequency Limit Test
To perform this test:
1. Select Setup | Freq. limit test from the Syncscope menu bar.
2. Set the bus and line (or bus and generator, or generator and line) frequencies under the channel A and
channel C voltage indicators.
3. Select dynamic operation mode on the MTS-1710.
4. Turn
[POSTFAULT]
on.
5. Press [FAULT] to start the test.
6. Adjust the frequency, as required, to reduce the frequency difference and to find the frequency limit.
7. When the relay operates, the "Closing angle" vector on the graph indicates the position of the channel
A phasor (Bus/line/generator) when the breaker closes. This is calculated based on the breaker advance
time setting, the frequency difference, and the position of the channel A phasor at the time of relay
operation.
E.3.7 Setting Nominal Values
Selecting Edit| Edit nominal values from the Syncscope menu bar allows you to set the nominal Va
voltage, nominal Vc voltage and nominal frequency. These values are used as the defaults for setting up the
phase, voltage and frequency limit tests.