8 Monitoring & Control
P50 Agile P253
8-6
P253/EN M/C
disturbance records locally via the front panel LCD. This waveform can be downloaded via the
communication port for further analysis.
The fault recording is set by
Trigger Position
cell. The
Trigger Position
cell sets the trigger point as
a percentage of the duration.
The details of the disturbance record are as follows:
Capacity:
5 records of 1 sec each
Pre fault Trigger position: Programmable
Sampling rate:
16 samples / cycles
Triggers:
Trip signals, external trigger via opto input assignment.
Data:
5 analogue channels and up to 37 digital channels (physical and logical
status).
2.2
Start-up Current Record
P253 relay records the starting current information every time the protected motor starts. This
information is very helpful in monitoring motor performance during the critical starting period. The
record can be downloaded using the P50 Agile configurator.
The details of the disturbance record are as follows:
Capacity:
1 records of 200 sec (max. duration)
Sampling rate:
1 sample / 5 cycles
Data:
True RMS value, maximum value of one of the 3 phase currents
2.3
Record Control
The data stored in Event/Fault/Maintenance/Disturbance Records can be cleared by enabling the
settings
Clear Events/Clear Faults/Clear Maint/Clear Dist Recs
in
Record Control
menu. The
Thermal State can be reset by enabling the Thermal Reset setting.
2.4
Display of Measuring Parameters
The device directly measures and calculates a number of system quantities, which are updated at
regular intervals. These values can be viewed in the
MEASUREMENTS
menu on the LCD screen
using the navigation keys on the front panel or using the P50 Agile configurator tool.
In normal conditions the relay displays Primary and Secondary current value of phases A, B, C and
earth current N as per phase/earth CT ratio within
±
2% accuracy and Thermal state in %.
The device measures and displays the following quantities:
2.4.1
MEASUREMENT 1 Submenu
Parameter
Unit
Description
IA
amp
Primary current in phase A
IB
amp
Primary current in phase B
IC
amp
Primary current in phase C
IN1
amp
Primary current in phase N (measured)
IN2
amp
Primary current in phase N (derived)
I0
amp
Primary zero phase sequence current
I1
amp
Pve phase sequence current
I2
amp
Primary -ve phase sequence current
ia
amp
Secondary current in phase A
Summary of Contents for P50 Agile P253
Page 3: ...P50 Agile P253 1 Introduction P253 EN M C 1 1 INTRODUCTION CHAPTER 1 ...
Page 4: ...1 Introduction P50 Agile P253 1 2 P253 EN M C ...
Page 11: ...SAFETY INFORMATION CHAPTER 2 ...
Page 12: ...Safety Information Pxxx 2 ...
Page 23: ...P50 Agile P253 3 Hardware Design P253 EN M C 3 1 HARDWARE DESIGN CHAPTER 3 ...
Page 24: ...3 Hardware Design P50 Agile P253253 3 2 P253 EN M C ...
Page 28: ...3 Hardware Design P50 Agile P253253 3 6 P253 EN M C E00276 Figure 2 Hardware design overview ...
Page 32: ...3 Hardware Design P50 Agile P253253 3 10 P253 EN M C ...
Page 33: ...P50 Agile P253 4 Front Panel P253 EN M C 4 1 FRONT PANEL CHAPTER 4 ...
Page 34: ...4 Front Panel P50 Agile P253 4 2 P253 EN M C ...
Page 39: ...P50 Agile P253 4 Front Panel P253 EN M C 4 7 Figure 2 USB port ...
Page 40: ...4 Front Panel P50 Agile P253 4 8 P253 EN M C ...
Page 41: ...P50 Agile P253 5 Configuration P253 EN M C 5 1 CONFIGURATION CHAPTER 5 ...
Page 42: ...5 Configuration P50 Agile P253 5 2 P253 EN M C ...
Page 154: ...5 Configuration P50 Agile P253 5 114 P253 EN M C ...
Page 155: ...P50 Agile P253 6 Protection Functions P253 EN M C 6 1 PROTECTION FUNCTIONS CHAPTER 6 ...
Page 156: ...6 Protection Functions P50 Agile P253 6 2 P253 EN M C ...
Page 182: ...7 Protection Parameter Settings P50 Agile P253 7 2 P253 EN M C ...
Page 203: ...P50 Agile P253 8 Monitoring Control P253 EN M C 8 1 MONITORING CONTROL CHAPTER 8 ...
Page 204: ...8 Monitoring Control P50 Agile P253 8 2 P253 EN M C ...
Page 222: ...8 Monitoring Control P50 Agile P253 8 20 P253 EN M C ...
Page 223: ...P50 Agile P253 9 SCADA Communications P253 EN M C 9 1 SCADA COMMUNICATIONS CHAPTER 9 ...
Page 224: ...9 SCADA Communications P50 Agile P253 9 2 P253 EN M C ...
Page 249: ...P50 Agile P253 10 Installation P253 EN M C 10 1 INSTALLATION CHAPTER 10 ...
Page 250: ...10 Installation P50 Agile P253 10 2 P253 EN M C ...
Page 260: ...11 Commissioning Instructions P50 Agile P253 11 2 P253 EN M C ...
Page 270: ...11 Commissioning Instructions P50 Agile P253 11 12 P253 EN M C ...
Page 272: ...12 Maintenance and Troubleshooting P50 Agile P253 12 2 P253 EN M C ...
Page 282: ...13 Technical Specifications P50 Agile P253 13 2 P253 EN M C ...
Page 292: ...13 Technical Specifications P50 Agile P253 13 12 P253 EN M C ...
Page 293: ...P50 Agile P253 14 Wiring Diagrams P253 EN M C 14 1 WIRING DIAGRAMS CHAPTER 14 ...
Page 294: ...14 Wiring Diagrams P50 Agile P253 14 2 P253 EN M C ...
Page 297: ......