User Manual

26
F Frequency of the input variable
Fn Rated frequency
P Active power of the system
P= P1 + P2 + P3
P1 Active power phase 1
(phase-to-neutral L1 – N)
P2 Active power phase 2
(phase-to-neutral L2 – N)
P3 Active power phase
(phase-to-neutral L3 – N)
Q Reactive power of the system
Q = Q1 + Q2 + Q3
Q1 Reactive power phase 1
(phase-to-neutral L1 – N)
Q2 Reactive power phase 2
(phase-to-neutral L2 – N)
Q3 Reactive power phase 3
(phase-to-neutral L3 – N)
S Apparent power of the system
S1 Apparent power phase 1
(phase-to-neutral L1 – N)
S2 Apparent power phase 2
(phase-to-neutral L2 – N)
S3 Apparent power phase 3
(phase-to-neutral L3 – N)
Sr Rated value of the apparent power of the
system
PF Active power factor cosϕ = P/S
PF1 Active power factor phase 1 P1/S1
PF2 Active power factor phase 2 P2/S2
PF3 Active power factor phase 3 P3/S3
QF Reactive power sin ϕ = Q/S
QF1 Reactive power factor 1 Q1/S1
QF2 Reactive power factor 2 Q2/S2
QF3 Reactive power factor 3 Q3/S3
LF Power factor of the system
LF = sgnQ · (1 – PF)
LF1 Power factor phase 1
sgnQ1 · (1 – PF1)
LF2 Power factor phase 2
sgnQ2 · (1 – PF2)
LF3 Power factor phase 3
sgnQ3 · (1 – PF3)
c Factor for the intrinsic error
R Output load
Rn Rated burden
H Power supply
Hn Rated value of the power supply
CT c.t. ratio
VT v.t. ratio
Measuring input
Waveform: Sinusoidal
Rated frequency: 50 or 60 Hz
Thermal rating of inputs
Input Number Duration Interval
variable of of between two
inputs overload overloads
Current circuit 400 V single-phase AC system
693 V three-phase system
12 A ––– contin. –––
120 A 10 1 s 100 s
120 A 5 3 s 5 min.
250 A 1 1 s 1 hour
Voltage circuit
480 V/831 V
1
––– contin. –––
600 V/1040 V
1
10 10 s 10 s
800 V/1386 V
1
10 1 s 10 s
1
Maximum 264 V across the power supply when it is obtained
from the measured variable with a power supply unit for
85 - 230 V DC/AC and maximum 69 V with a power supply
unit for 24 - 60 V DC/AC.
Y2
2 mA
Y2
1 mA
15 V
Y2
Consumption [VA] (with
external power supply): Voltage circuit: U
2
/ 400 kΩ
Current circuit: ≤ I
2
· 0.01 Ω
The outputs A, B and C may be either short or open-circuited.
They are electrically insulated from each other and from all
other circuits (floating).
All the full-scale output values can be reduced subsequently
using the programming software, but a supplementary error
results.
Analogue outputs
For the outputs A, B and C:
Output Impressed Impressed
variable Y DC current DC voltage
Full scale Y2 1 ≤ Y2 ≤ 20 mA 5 ≤ Y2 ≤ 10 V
Limits of output
signal for input
overload
and/or R = 0 1.2 · Y2 40 mA
R → ∞ 30 V 1.2 Y2
Rated useful
range of output 0 ≤ ≤ ≤ ≤ ∞
lead
AC component
of output signal ≤ 0.02 Y2 ≤ 0.02 Y2
(peak-to-peak)
7.5 V
Y2
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