Figure 3-6 Start Time Supervision (48) - Siemens 7SR105 Rho User Manual

Motor protection relay
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3.1.3.2
Start Time Supervision (48)
An output can be provided where the motor start time is too long i.e. where the start time exceeds the Gn 48-n
Delay setting.
Gn 49 NPS Weighting
Gn 49 NPS Weighting Factor
IA
PPS/
IB
NPS
Filter
IC
Motor Running
No Accel
©2018 Siemens Protection Devices
Gn 48-n Start Time
Supervision
Disabled
Enabled
Gn 49 Itheta Thermal OL
Gn 49 Motor Start Type
Gn 49 Motor Start Current
Gn 49 End of Start Type
Gn 49 End of Start
Gn 49 Motor Stop Type
Gn 49 Motor Stop Current
I
EQ
Stopped
Figure 3-6
Start Time Supervision (48)
7SR105 Rho Description of Operation
Gn 48-n Delay
Run
En
Start
48-n
Chapter 1 Page 29 of 57

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