Regulus uREG, User Manual

Page: 78 / 107

uREG User Manual
78
13.2. PRIMARY MEASUREMENTS
Table 13.2. Primary measurements
Description Explanation and range Notes
40 Current IL1
41 Current IL2
42 Current IL3 Phase current RMS value.
Range:
0 – (lower value out of: 192*thetaIf,
10000) [A]
43 Current Ifmax The maximum value of phase current RMS
values in L1, L2, L3 – recorded after the last
circuit-breaker activation by TZ, ZW or KZ
pulse.
Range:
see primary currents. IL1-IL3
44 Current I0 I0 zero current RMS value,
Range:
0-(lower value out of: 10*theta I0,
1000)[A]
45 Current Ig Current (Ig) RMS (e.g. in BKR lateral branch)
Range:
0-(lower value out of: 10*theta I0,
1000)[A]
46 Voltage U0 Voltage RMS of
zero sequence U0.
Range:
0 – 130* Un/(√3*100) [kV]
47 Voltage UL1
48 Voltage UL2
49 Voltage UL3 Phase voltage RMS value.
Range:
0 – 130*Un/100 [kV]
4A Voltage U12
4B Voltage U23
4C Voltage U31 Line-to-line voltage RMS value,
Range:
0 – 130*Un/100 [kV]
4D Active power P3 Three-phase active power RMS (average over
1 second) – positive value with energy to the
line, negative for the opposite direction.
Range:
0 – 100 [MW]
Power computed as a sum of marked
busbar active power values.
L1, L2 and L3
4E Reactive power Q3 Three-phase reactive power RMS value
(average over 15 second) – positive value for
inductive load, negative value for capacitive
load.
Range:
0 – 100 [Mvar]
Power computed as a sum of marked
busbar reactive power values.
L1, L2 and L3
4F Frequency Frequency 45 – 55 [Hz]
4G Derivative df/dt Derivative df/dt 0.1 – 25 [Hz/s]
4H P3max0 15min
4J P3max1 15min
4L P3max2 15min
4N P3max3 15min Three-phase active peak-RMS power (moving
average over 15 minutes), in 0th, 1st, 2nd
and 3rd time zone, respectively.
Range:
0 – 100 [MW]
The determined power is an average (over
15-minute intervals – resolution --min.)
peak active or reactive power value in the
time zone after auxiliary power-on to the
unit, or after remote register reset.
Power indication is coupled with a time
marker of the maximum record.
4I Q3max0 15min
4K Q3max1 15min
4M Q3max2 15min
4O Q3max3 15min Three-phase reactive peak-RMS power
(moving average over 15 minutes), in 0th,
1st, 2nd and 3rd time zone, respectively.
Range:
0 – 100 [Mvar]
4P Ecz+ Zone 0
4Q Ecz+ Zone 1
4R Ecz+ Zone 2 Stored active energy fed to busbars in time zones.
Range:
0 – 10 000 [MWh]
Energy metered for a period of the time
zone (successive days) for energy fed to
busbars (Ecz+)