
Chapter 8
– PMU
RPV311
188
RPV311-TM-EN-6
3
WMU
– WAVEFORM MEASUREMENT UNIT
The WMU transmits Ethernet messages that are analogue signals calculated and sent within a PMU frame
with a transmission rate equal to 4 times the system nominal frequency.
The analog signal sent is a representation of a three-phase signal that is used to evaluate wide-area
subcyclic oscillations. The WMU uses the analogue field (No 10) of the frame below to send its data.
The WMU uses the commanded logic through the port number
4723.
The table below exemplifies a frame of PMU described as per IEEE C37.118.2-2011.
No
Field
Size
(bytes)
Comment
1
SYNC
2
Sync byte followed by frame type and version number
2
FRAMESIZE
2
Number of bytes in frame
3
IDCODE
2
Stream source ID number, 16-bit integer
4
SOC
4
SOC timestamp, for all measurements in frame.
5
FRACSEC
4
Fraction of Second and Time Quality, for all measurements in frame.
6
STAT
2
Bit mapped flags.
7
PHASORS
4 x
PHNMR
or
8 x
PHNMR
Phasor estimates. May be single phase or 3-phase positive,
negative, or zero sequence. 4 or 8 bytes each depending on
the fixed 16-bit or floating point format used, as indicated
by the FORMAT field in configuration the frame. The
number of values is determined by the PHNMR field in
configuration 1, 2, and 3 frames.
8
FREQ
2 / 4
Frequency (fixed or floating point).
9
DFREQ
2 / 4
Rate of change of frequency (fixed or floating point).
10 ANALOGUE
2 x
ANNMR
or
4 x
ANNMR
Analog data, 2 or 4 bytes per value depending on fixed or
floating point format used, as indicated by the FORMAT
field in configuration 1,2, and 3 frames. The number of
values is determined by the ANNMR field in configuration 1,
2, and 3 frames.
11
DIGITAL
2 x
DGNMR
Digital data, usually representing 16 digital status points
(channels). The number of values is determined by the
DGNMR field in configuration 1, 2, and 3 frames
Repeat 6
–
11
4 x
ANNMR
Fields 6 - 11 are repeated for as many PMUs as in NUM_PMU field in
configuration frame.
12
+
CHK
2
CRC-CCITT
.
Содержание Reason RPV311
Страница 2: ......
Страница 15: ...INTRODUCTION CHAPTER 1...
Страница 34: ...SAFETY INFORMATION CHAPTER 2...
Страница 45: ...HARDWARE DESIGN CHAPTER 3...
Страница 56: ......
Страница 57: ...CONFIGURATION CHAPTER 4...
Страница 75: ...RPV311 Chapter 4 Configuration RPV311 TM EN 6 75 Figure 21 Email Fax configuration...
Страница 77: ...RPV311 Chapter 4 Configuration RPV311 TM EN 6 77 Figure 22 Adding and editing voltage circuits...
Страница 117: ...OPERATION CHAPTER 5...
Страница 121: ...RPV311 Chapter 5 Operation RPV311 TM EN 6 121 Figure 46 Status monitoring sequence...
Страница 123: ...RPV311 Chapter 5 Operation RPV311 TM EN 6 123 Figure 47 Monitoring sequence...
Страница 126: ...Chapter 5 Operation RPV311 126 RPV311 TM EN 6 Figure 49 Records monitoring sequence harmonics flicker and SOE...
Страница 128: ...Chapter 5 Operation RPV311 128 RPV311 TM EN 6 Figure 50 Equipment settings monitoring sequence...
Страница 129: ...RPV311 Chapter 5 Operation RPV311 TM EN 6 129 Figure 51 Circuit and channel settings monitoring sequence...
Страница 130: ...Chapter 5 Operation RPV311 130 RPV311 TM EN 6 Figure 52 Relays PMU and MODBUS settings monitoring sequence...
Страница 132: ...Chapter 5 Operation RPV311 132 RPV311 TM EN 6 Figure 53 General information monitoring sequence...
Страница 155: ...RECORDS CHAPTER 6...
Страница 172: ......
Страница 173: ...TW FAULT LOCATOR CHAPTER 7...
Страница 183: ...PMU CHAPTER 8...
Страница 189: ...MODBUS CHAPTER 9...
Страница 193: ...DNP3 CHAPTER 10...
Страница 196: ......
Страница 197: ...GOOSE MESSAGE DETECTION CHAPTER 11...
Страница 200: ......
Страница 201: ...SOFTWARE RPV TOOLS CHAPTER 12...
Страница 228: ......
Страница 229: ...SOFTWARE RPV MANAGER CHAPTER 13...
Страница 249: ...COMMUNICATIONS CHAPTER 14...
Страница 261: ...INSTALLATION CHAPTER 15...
Страница 295: ...Chapter 15 Installation RPV311 RPV311 TM EN 6 295 Figure 138 RA331 RA332 and RA333 dimensions...
Страница 299: ...MAINTENANCE AND TROUBLESHOOTING CHAPTER 16...
Страница 310: ...TECHNICAL SPECIFICATIONS CHAPTER 17...
Страница 329: ...Chapter 17 Technical Specifications RPV311 RPV311 TM EN 6 329 Figure 142 RA331 RA332 and RA333 dimensions...
Страница 331: ...RPV311 Chapter 17 Wiring Diagrams WIRING DIAGRAMS CHAPTER 18...
Страница 340: ...APPENDIX A...