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OPERATION SUMMARY - Section 3
3-32 MTS-1700 SERIES OPERATION AND REFERENCE MANUAL
MANTA TEST SYSTEMS
CU A002 15A
3. Press [CURRENT] again to display/adjust the I2 current. Increase to the nominal value. Press
[PHASE], and set the phase between I1&I2. Adjust if necessary. This is typically 0°, but may be 30° or
-30° for transformer differential relays which protect Y-
∆
transformers. The relay should now be
operated.
4. Slowly decrease the operate current (I2) until the relay operates. Record the I1 and I2 current readings.
Release the [FAULT] button.
5. Use the required formula to calculate slope. If the standard |I1-I2|÷((I1+I2)÷2) formula applies, this can
be directly displayed. Select DISP RATIOS CURRENT-RATIOS SLOPE |I1-I2|÷((I1+I2)÷2) via the
menu.
6. To repeat at different values of restraint, repeat at step 2.
3.3.11.3 OPERATE TIME TEST.
1. If you haven’t done so, perform steps 1-3 of the slope test above.
2. Press [CURRENT], and adjust either the I1 or I2 current to the desired test value. The relay should
now be operated. Release the [FAULT] button.
3. Select dynamic operation mode. Press [FAULT] to perform the timing test.
4. When the relay operates, the [STOP/RESET] button will illuminate. Press [TIME] to see the operation
time. Press [TIME] again to toggle between display in seconds or cycles.
5. Press [STOP/RESET] to clear, and to prepare for the next test.
3.3.11.4 HARMONIC RESTRAINT TEST.
Using the test connections shown in Figure 3.14, follow the procedure given in Section 3.3.10.4.
3.3.11.5 INSTANTANEOUS TEST.
Use the test connections, as shown in Figure 3.14.
If more than 30A is required, the I1-HIGH current mode should be used. Follow the same basic procedure
as outlined in Section 3.3.10.5.
3.3.11.6 TARGET TEST.
To test current-operated targets on this type of relay, follow the procedure outlined in Section 3.3.10.6,
except connect the B-N and C-N current outputs of the MTS-1710 to the two independent current coils.
3.3.12 Synchronizing/Reclosing or Synchrocheck Relay
These types of relays are tested using the synchronizing mode of the MTS-1710.
The following sections describe how to perform standard tests. The SYNCSCOPE computer program
provided with your MTS-1710 is useful (but not a necessity) for demonstrating these tests.
Содержание MTS-1700 SERIES
Страница 30: ...TABLE OF CONTENTS xxx MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 38: ...INTRODUCTION Section 1 1 8 MTS 1700SERIESOPERATIONANDREFERENCEMANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 44: ...SPECIFICATIONS Section 2 2 6 MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 248: ...FAULT PLAYBACK Section 7 7 12 MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 262: ...SERVICING Section 8 8 14 MTS 1700 SERIES OPERATION ANDREFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 320: ...PROGRAMMABLE DIGITAL I O CHANNELS A 14 MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 340: ...E 4 MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...
Страница 344: ...GLOSSARY F 4 MTS 1700 SERIES OPERATION AND REFERENCE MANUAL MANTA TEST SYSTEMS CU A002 15A ...