OPERATION SUMMARY - Section 3
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 3-25
CU A002 15A
MANTA TEST SYSTEMS
4. Press [FAULT] to initiate the fault.
5. When the relay operates, the [STOP/RESET] button will illuminate. Press [TIME] to see the operation
time. The relay should operate in the zone 1 time.
6. Press [STOP/RESET] to clear and prepare for next test.
7. Repeat steps 3-6, with the connections to the permissive trip input removed, and the relay should
operate in the zone 2 time.
8. To test other elements (A-N, B-N, C-N, A-B, B-C, C-A), or other zones, simply rotate the [FAULT
PHASE] selector, and repeat at step 2.
* Alternatively, an MTS-1730 output channel could be used to apply DC voltage to the permissive trip
input of the relay rather than the MTS-1710’s auxiliary contact output. For example, if the MTS-
1730’s output channel 0 is used, the following commands should be sent via the RS-232 port to close
the contacts during the fault state:
DIO,OUT0,0,1
DIO,OUT1,1,1
DIO,OUT2,0,1
3.3.9.8 TESTING SIGNAL SEND/CARRIER SEND OUTPUT.
This procedure checks the signal send/carrier send/key output operation of a distance relay with
communications-aided accelerated tripping.
Testing the signal send/carrier send/key output is the same as testing an instantaneous distance element.
The signal send/carrier send/key output operation depends on the scheme type, as shown on the following
page:
Signal send/carrier send/key
Scheme
output asserted for
Permissive underreach
fault in Zone 1
Permissive overreach
fault in Zone 2
Blocking
fault in reverse Zone 3
Procedure
1. Perform steps 1-3 in the Preparation section (3.3.9.1).
2. Connect the signal send/carrier send/key output to the [EXTERNAL STOP] trigger inputs.
3. Select the appropriate fault type
Φ
-
Φ
,
Φ
-N etc. Generally the test is done once for both
Φ
-
Φ
and
Φ
-N
to check that a carrier send is output for both phase and ground faults.
4. Press and hold the [FAULT] button or short to the [EXTERNAL START] contact inputs. Press
[CURRENT] and set a starting fault current (e.g. 5A).
5. Press [PHASE] and adjust the phase angle to the MTA (MTA-180° for blocking scheme).
6. Press [VOLTAGE] and decrease the voltage until the signal send contact operates. You also can press
[CURRENT] and increase the current. When the contacts close, the [TONE] button will light. The
[TONE] button also toggles an audible tone on or off.
7. Verify that the signal send contact closes only works for faults in the specified zone(s) in the table
above.
8. Set the fault voltage and current to within the operating zone.
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 ...