![Manta MTS-1700 SERIES Operation And Reference Manual Download Page 167](http://html1.mh-extra.com/html/manta/mts-1700-series/mts-1700-series_operation-and-reference-manual_1723616167.webp)
ADVANCED OPERATION - Section 5
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 5-27
CU A002 15A
MANTA TEST SYSTEMS
The default setting is zero, indicating that, when the relay operates on the first fault, the MTS-1710 will
remain latched in the postfault state. This is the normal mode of operation for the MTS-1710.
To test the total number of reclose shots of the relay, set the number of reclose into fault events to be equal
to the relay #of shots setting. At the end of a test, press [STOP/RESET] to re-initialize the MTS-1710’s
internal reclose-into-fault event counter.
Figure 5.10 shows an example of an unsuccessful 2-shot auto-reclose test. This entire sequence can be
executed automatically and recorded by the sequence of events recording capability of the programmable I/
O channels. In addition, MTS-1730 can be used to simulate the breaker closed (52A) signal.
FIGURE 5.10 TWO-SHOT AUTO RECLOSE TEST
5.11.3 Trip Type
This setting allows both single-pole and three-pole tripping to be simulated.
In 3-pole trip mode, the MTS-1710/MTS-1720 simulate 3
Φ
tripping. In 1-pole trip mode, the MTS-1710/
MTS-1720 simulates tripping of only the phases participating in the fault (e.g. B-phase, if
Φ
-N/B-N
fault
mode is selected).
For
Φ−Φ
and 2-
Φ
-N
fault types, tripping on the appropriate faulted phases is simulated. The non-faulted
phases will remain at their nominal (prefault) current and voltage levels in the postfault state, and won’t be
affected by
any auto-reclose simulation.
I
V
Prefault
Initial
Fault
1st
Reclose
into
fault
fault
into
Reclose
2nd
Lockout
BRKR
CLOSED
TRIP
CLOSE
MTS-1710
STATE
Prefault
Prefault
Prefault
Fault
Fault
Postfault
Fault
TIME DELAY TO AUTO-
RECLOSE: 20.0 CYC