12 Maintenance and Troubleshooting
P50 Agile P153
12-4
P153/EN M/B
2
MAINTENANCE
2.1
Maintenance checks
In view of the critical nature of the application, General Electric products should be checked at regular
intervals to confirm they are operating correctly.
The devices are self-supervising and so require less maintenance than earlier designs of protection
devices. Most problems will result in an alarm, indicating that remedial action should be taken.
However, some periodic tests should be carried out to ensure that they are functioning correctly and
that the external wiring is intact. It is the responsibility of the customer to define the interval between
maintenance periods. If your organisation has a Preventative Maintenance Policy, the recommended
product checks should be included in the regular program. Maintenance periods depend on many
factors, such as:
•
The operating environment
•
The accessibility of the site
•
The amount of available manpower
•
The importance of the installation in the power system
•
The consequences of failure
Although some functionality checks can be performed from a remote location, these are predominantly
restricted to checking that the unit is measuring the applied currents and voltages accurately, and
checking the circuit breaker maintenance counters. For this reason, maintenance checks should also
be performed locally at the substation.
Caution: Before carrying out any work on the equipment you should be familiar with the
contents of the Safety Section or the Safety Guide Pxxx-SG-4LM-3 and the
ratings on the equipment’s rating label.
2.1.1
Opto-Isolators
Check the opto-inputs by repeating the commissioning test detailed in the Commissioning chapter.
2.1.2
Output Relays
Check the output relays by repeating the commissioning test detailed in the Commissioning chapter.
2.1.3
Measurement Accuracy
If the power system is energised, the measured values can be compared with known system values to
check that they are in the expected range. If they are within a set range, this indicates that the A/D
conversion and the calculations are being performed correctly. Suitable test methods can be found in
Commissioning chapter.
Alternatively, the measured values can be checked against known values injected into the device
using the test block, (if fitted) or injected directly into the IED's terminals. These tests will prove the
calibration accuracy is being maintained.
2.2
Changing the Battery
The P153 relay has a battery to maintain status data and the correct time when the auxiliary supply
voltage fails.
Summary of Contents for Agile P50 Series
Page 3: ...P50 Agile P153 1 Introduction P153 EN M B 1 1 INTRODUCTION CHAPTER 1...
Page 4: ...1 Introduction P50 Agile P153 1 2 P153 EN M B...
Page 10: ...1 Introduction P50 Agile P153 1 8 P153 EN M B...
Page 11: ...P50 Agile P153 2 Safety Information P153 EN M A 2 1 SAFETY INFORMATION CHAPTER 2...
Page 22: ...Chapter 2 Safety Information P50 Agile P153 2 12 P153 EN M A...
Page 23: ...P50 Agile P153 3 Hardware Design P153 EN M B 3 1 HARDWARE DESIGN CHAPTER 3...
Page 24: ...3 Hardware Design P50 Agile P153 3 2 P153 EN M B...
Page 32: ...3 Hardware Design P50 Agile P153 3 10 P153 EN M B...
Page 33: ...P50 Agile P153 4 Front Panel P153 EN M B 4 1 FRONT PANEL CHAPTER 4...
Page 34: ...4 Front Panel P50 Agile P153 4 2 P153 EN M B...
Page 39: ...P50 Agile P153 5 Configuration P153 EN M B 5 1 CONFIGURATION CHAPTER 5...
Page 40: ...P50 Agile P153 5 Configuration P153 EN M B 5 2...
Page 150: ...P50 Agile P153 5 Configuration P153 EN M B 5 112...
Page 151: ...P50 Agile P153 6 Protection Functions P153 EN M B 6 1 PROTECTION FUNCTIONS CHAPTER 6...
Page 152: ...6 Protection Functions P50 Agile P153 6 2 P153 EN M B...
Page 168: ...7 Protection Parameter Settings P50 Agile P153 7 2 P153 EN M B...
Page 189: ...P50 Agile P153 8 Monitoring Control P153 EN M B 8 1 MONITORING CONTROL CHAPTER 8...
Page 190: ...8 Monitoring Control P50 Agile P153 8 2 P153 EN M B...
Page 207: ...P50 Agile P153 9 SCADA Communications P153 EN M B 9 1 SCADA COMMUNICATIONS CHAPTER 9...
Page 208: ...12 SCADA Communications P50 Agile P153 9 2 P153 EN M B...
Page 220: ...12 SCADA Communications P50 Agile P153 9 14 P153 EN M B...
Page 221: ...P50 Agile P153 10 Installation P153 EN M B 10 1 INSTALLATION CHAPTER 10...
Page 222: ...10 Installation P50 Agile P153 10 2 P153 EN M B...
Page 234: ...13 Commissioning Instructions P50 Agile P153 13 2 P153 EN M B...
Page 242: ...12 Maintenance and Troubleshooting P50 Agile P153 12 2 P153 EN M B...
Page 250: ...12 Maintenance and Troubleshooting P50 Agile P153 12 10 P153 EN M B...
Page 252: ...13 Technical Specifications P50 Agile P153 13 2 P153 EN M B...
Page 263: ...P50 Agile P153 14 Wiring Diagrams P153 EN M B 14 1 WIRING DIAGRAMS CHAPTER 14...
Page 264: ...14 Wiring Diagrams P50 Agile P153 14 2 P153 EN M B...
Page 267: ......