RPV311
Chapter 5
– Operation
RPV311-TM-EN-7
123
S
+
Positive sequence ¹ ²
S
−
Negative sequence ¹ ²
U
Imbalance ¹ ²
F
Fundamental frequency ²
THD
Total harmonic distortion ²
¹ Is not calculated for circuits of 1 element without 3-phase synthesis.
² Is not calculated for neutral circuits.
The fundamental frequency of the input signal must be within a range of ± 6 Hz of
the nominal frequency of the electrical system.
Power Measurement:
Power measurement is computed based on the values of a voltage circuit and a
current circuit. The following values are computed once per cycle:
Voltage and current measurement
S
Combined apparent power
S
1
Fundamental apparent power
P
1
Phasors ¹
Q
1
Phasors (neutral) ¹
Reactive power has a positive sign for circuits with inductive characteristics and a
negative sign for circuits with capacitive characteristics.
DC Transducers Measurement:
The RMS value of the DC channels (transducers) is calculated once per cycle.
High-speed Voltage Measurement:
There is an 8-bit opto-isolated analog-to-digital converter, independent for each
channel. The acquisition is performed with 5 MHz sampling frequency (high-speed
channels), that means one acquisition each 200 ns.
Содержание RPV311
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Страница 99: ...RPV311 Chapter 5 Operation RPV311 TM EN 7 99 Figure 46 Status monitoring sequence ...
Страница 101: ...RPV311 Chapter 5 Operation RPV311 TM EN 7 101 Figure 47 Monitoring sequence ...
Страница 104: ...Chapter 5 Operation RPV311 104 RPV311 TM EN 7 Figure 49 Records monitoring sequence harmonics flicker and SOE ...
Страница 106: ...Chapter 5 Operation RPV311 106 RPV311 TM EN 7 Figure 50 Equipment settings monitoring sequence ...
Страница 107: ...RPV311 Chapter 5 Operation RPV311 TM EN 7 107 Figure 51 Circuit and channel settings monitoring sequence ...
Страница 108: ...Chapter 5 Operation RPV311 108 RPV311 TM EN 7 Figure 52 Relays PMU and MODBUS settings monitoring sequence ...
Страница 110: ...Chapter 5 Operation RPV311 110 RPV311 TM EN 7 Figure 53 General information monitoring sequence ...
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Страница 149: ...RPV311 Chapter 9 TW Fault Locator RPV311 TM EN 7 149 Figure 75 TW Fault Location example 1 ...
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Страница 265: ...Chapter 17 Technical Specifications RPV311 RPV311 TM EN 7 265 Figure 142 RPV311 Dimensions ...
Страница 275: ...Chapter 17 Technical Specifications RPV311 RPV311 TM EN 7 275 Figure 143 RA331 RA332 and RA333 dimensions ...
Страница 279: ...RPV311 Appendix A Equipment Log RPV311 TM EN 7 279 ...