Measurement Mode
Parameter
Signing
3
Export Power
Import Power
Lagging Vars
Leading VArs
–
+
–
+
The device also calculates the per-phase and three-phase power factors.
These power values are also used to increment the total real and reactive energy measurements. Separate
energy measurements are maintained for the total exported and imported energy. The energy
measurements are incremented up to maximum values of 1000 GWhr or 1000 GVARhr at which point they
will reset to zero, it is also possible to reset these values using the menu or remote interfaces using the
Reset demand cell.
These measurements are contained in the
MEASUREMENTS 2
column.
4.1.4
DEMAND VALUES
The device produces fixed, rolling and peak demand values. It is possible to reset these quantities using the
Reset demand
cell.
The fixed demand value is the average value of a quantity over the specified interval. Values are produced
for three phase real and reactive power. The fixed demand values displayed are those for the previous
interval. The values are updated at the end of the fixed demand period according to the
Fix Dem Period
setting in the
MEASURE'T SETUP
column.
The rolling demand values are similar to the fixed demand values, the difference being that a sliding window
is used. The rolling demand window consists of a number of smaller sub-periods. The resolution of the
sliding window is the sub-period length, with the displayed values being updated at the end of each of the
sub-periods according to the
Roll Sub Period
setting in the
MEASURE'T SETUP
column.
Peak demand values are produced for each phase current and the real and reactive power quantities. These
display the maximum value of the measured quantity since the last reset of the demand values.
These measurements are contained in the
MEASUREMENTS 2
column.
4.1.5
FREQUENCY MEASUREMENTS
The device produces a range of frequency statistics and measurements relating to the Frequency Protection
function. These include Check synchronisation and Slip frequency measurements found in the
MEASUREMENTS 1
column, Rate of Change of Frequency measurements found in the
MEASUREMENTS
3
column, and Frequency Protection statistics found in the
FREQ STAT
column.
The device produces the slip frequency measurement by measuring the rate of change of phase angle
between the bus and line voltages, over a one-cycle period. The slip frequency measurement assumes the
bus voltage to be the reference phasor.
4.1.6
OTHER MEASUREMENTS
Depending on the model, the device produces a range of other measurements such as thermal
measurements.
These measurements are contained in the
MEASUREMENTS 3
column.
4.2
MEASUREMENT SETUP
You can define the way measurements are set up and displayed using the
MEASURE'T SETUP
column, as
shown below:
MiCOM P747
Chapter 6 - Monitoring and Control
P747-TM-EN-1
163
P747-TM-EN-1.1
Summary of Contents for MiCOM P747 Agile
Page 2: ......
Page 16: ...Contents MiCOM P747 xiv P747 TM EN 1 P747 TM EN 1 1...
Page 20: ...Table of Figures MiCOM P747 xviii P747 TM EN 1 P747 TM EN 1 1...
Page 21: ...INTRODUCTION CHAPTER 1...
Page 22: ...Chapter 1 Introduction MiCOM P747 2 P747 TM EN 1 P747 TM EN 1 1...
Page 31: ...SAFETY INFORMATION CHAPTER 2...
Page 32: ...Chapter 2 Safety Information MiCOM P747 12 P747 TM EN 1 P747 TM EN 1 1...
Page 42: ...Chapter 2 Safety Information MiCOM P747 22 P747 TM EN 1 P747 TM EN 1 1...
Page 43: ...HARDWARE DESIGN CHAPTER 3...
Page 44: ...Chapter 3 Hardware Design MiCOM P747 24 P747 TM EN 1 P747 TM EN 1 1...
Page 74: ...Chapter 3 Hardware Design MiCOM P747 54 P747 TM EN 1 P747 TM EN 1 1...
Page 75: ...CONFIGURATION CHAPTER 4...
Page 76: ...Chapter 4 Configuration MiCOM P747 56 P747 TM EN 1 P747 TM EN 1 1...
Page 117: ...PROTECTION FUNCTIONS CHAPTER 5...
Page 118: ...Chapter 5 Protection Functions MiCOM P747 98 P747 TM EN 1 P747 TM EN 1 1...
Page 160: ...Chapter 5 Protection Functions MiCOM P747 140 P747 TM EN 1 P747 TM EN 1 1...
Page 161: ...MONITORING AND CONTROL CHAPTER 6...
Page 162: ...Chapter 6 Monitoring and Control MiCOM P747 142 P747 TM EN 1 P747 TM EN 1 1...
Page 211: ...SCADA COMMUNICATIONS CHAPTER 7...
Page 212: ...Chapter 7 SCADA Communications MiCOM P747 192 P747 TM EN 1 P747 TM EN 1 1...
Page 259: ...REDUNDANT ETHERNET CHAPTER 8...
Page 260: ...Chapter 8 Redundant Ethernet MiCOM P747 240 P747 TM EN 1 P747 TM EN 1 1...
Page 293: ...CYBER SECURITY CHAPTER 9...
Page 294: ...Chapter 9 Cyber Security MiCOM P747 274 P747 TM EN 1 P747 TM EN 1 1...
Page 313: ...SETTINGS APPLICATION SOFTWARE CHAPTER 10...
Page 314: ...Chapter 10 Settings Application Software MiCOM P747 294 P747 TM EN 1 P747 TM EN 1 1...
Page 322: ...Chapter 10 Settings Application Software MiCOM P747 302 P747 TM EN 1 P747 TM EN 1 1...
Page 323: ...BUSBAR COMMISSIONING TOOL CHAPTER 11...
Page 324: ...Chapter 11 Busbar Commissioning Tool MiCOM P747 304 P747 TM EN 1 P747 TM EN 1 1...
Page 330: ...Chapter 11 Busbar Commissioning Tool MiCOM P747 310 P747 TM EN 1 P747 TM EN 1 1...
Page 331: ...SCHEME LOGIC CHAPTER 12...
Page 332: ...Chapter 12 Scheme Logic MiCOM P747 312 P747 TM EN 1 P747 TM EN 1 1...
Page 348: ...Chapter 12 Scheme Logic MiCOM P747 328 P747 TM EN 1 P747 TM EN 1 1...
Page 349: ...INSTALLATION CHAPTER 13...
Page 350: ...Chapter 13 Installation MiCOM P747 330 P747 TM EN 1 P747 TM EN 1 1...
Page 361: ...COMMISSIONING INSTRUCTIONS CHAPTER 14...
Page 362: ...Chapter 14 Commissioning Instructions MiCOM P747 342 P747 TM EN 1 P747 TM EN 1 1...
Page 387: ...MAINTENANCE AND TROUBLESHOOTING CHAPTER 15...
Page 388: ...Chapter 15 Maintenance and Troubleshooting MiCOM P747 368 P747 TM EN 1 P747 TM EN 1 1...
Page 403: ...TECHNICAL SPECIFICATIONS CHAPTER 16...
Page 404: ...Chapter 16 Technical Specifications MiCOM P747 384 P747 TM EN 1 P747 TM EN 1 1...
Page 425: ...SYMBOLS AND GLOSSARY APPENDIX A...
Page 426: ...Appendix A Symbols and Glossary MiCOM P747 406 P747 TM EN 1 P747 TM EN 1 1...
Page 443: ...COMMISSIONING RECORD APPENDIX B...
Page 444: ...Appendix B Commissioning Record MiCOM P747 424 P747 TM EN 1 P747 TM EN 1 1...
Page 449: ...WIRING DIAGRAMS APPENDIX C...
Page 450: ...Appendix C Wiring Diagrams MiCOM P747 430 P747 TM EN 1 P747 TM EN 1 1...
Page 456: ...Appendix C Wiring Diagrams MiCOM P747 436 P747 TM EN 1 P747 TM EN 1 1...
Page 457: ......