Working Standard
User’s Guide
www.appliedp.com
WS-UGFW619-EN
47
Control keys:
F1, ESC
..... Exit (return to previous page / skipping to next page)
F3
.............. Burden test
F3
............. Data readout
F3
.............. Switch primary/secondary selection
F4
............. Save Load Point values (including harmonics and shapes) into results database
F5
.............. Menu
4.11 Burden Measurement
Burden Test / Measurement can be done on measuring voltage or current transformer in order to verify
their function and installation.
Measurement screen shows the actual load point values, nominal values from the meter label, as well
as measured impedance, admittance and further calculated values.
It is initiated by pressing the
F3
key twice from the
Load Values page
or selecting it from the
Tests
Menu
.
Burden Measurement screen
* P208
(one voltage sensor and
one current sensor used)
Content:
U, I, S
........... Load point values
Snom
........... N
ominal burden from meter’s label
Inom
............ N
ominal current from meter’s label
Unom
........... Nominal voltage
from meter’s label
Z
................... Burden (Load Impedance) = U / I
S`
I
................. Measured Current burden = Inom * Inom * Z
S`
bI
............... Operating Current Burden ratio = Si * 100.0 /
CTSnom
Y
.................. Admittance = I / U
S`
U
................ Measured Voltage burden = Unom * Unom *
Y
S`
bU
.............. Operating Voltage Burden ratio Su * 100.0 /
VTSnom
Содержание WS 2120
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