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12
R E M 6 1 5 A N S I 5 . 0 F P 1 M OTO R P R OT E C T I O N A N D C O N T R O L
—
Figure 6. Motor protec-
tion and control of con-
tactor and circuit breaker
controlled motors using
standard configuration D
Example of motor protection and control of
contactor and circuit breaker controlled motors
using standard configuration D is shown in Figure
6. In this configuration current sensors (Rogowski
coil) and voltage sensors (voltage divider) are
used for the measurements. To prevent possible
power system instability due to busbar voltage
collapse, the simultaneous starting of several
motors can be inhibited with the "restart inhibit"
Y
Va, Vb, Vc
52
3I
REM615 Conf D
51P/50P
50BF
49M
51LR/66
52
27/27PS
59
AFD
M
250HP
IEC 61850-9-2LE
REF615 Conf L
67P/51P/50P
3I
50BF
67G/51G/50G
27
27R via
IEC 61850-9-2LE
25 via
IEC 61850-9-2LE
AFD
Va, Vb, Vc
3I
52
M
500HP
input of REM615. The optional RTD/mA inputs are
utilized for motor winding and bearing
temperature supervision.
The standard configuration D has been pre-
configured especially for ABB switchgears, for
example, Advance Digital. The use of this
configuration is not restricted for that purpose
only.
REM615 Conf D
51P/50P
50BF
49M
51LR/66
27/27PS
59
AFD
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