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ABB | SACE Emax 2
Ekip Touch protection release | 15 - Measuring Measurements
131 | © 2013
ABB |
1SDH001000R0002 - L7804
Instantaneous voltages
Description
Instantaneous voltages are measurements in real time of the phase-to-phase voltages and
phase voltages.
NOTE:
the measurements of the phase voltages are available with four-pole or three-
pole circuit-breakers configured with external neutral.
Representations and access pages
Voltage measurements are available in different representations, accessible from the following
pages:
• In the
Histograms page
there is a graphical representation in the form of a histogram of
the phase-to-phase voltages, and measurement in Volts of the highest voltage.
• In the
Measurements Synthesis
page, accessible from the
Histograms
page, there is
a measurement in Volts of the highest phase-to-phase voltage.
• In the
Measuring instruments page
there is a graphical representation in the form of a
volt meter and measurement in Volts of the highest phase-to-phase voltage.
• In the
Measurements page
there are measurements in Volts of all the phase-to-phase
voltages and phase voltages.
The measurements in Volts are available by a minimum value of 5 V to a maximum value of
1.25 Vn.
NOTE:
•
For voltages lower than 5 V "…" is shown, while for voltages greater than 1.25 Vn
">1.25 Vn" is shown.
•
In the Histograms page, the graphical representation of the voltages is in relation
1 Vn, with a maximum value of 1.25.
•
By activating communication with the release, the maximum measurable voltage
is: 900 V x ratio between primary voltage and secondary voltage (example: primary
voltage= 1000 V, secondary voltage 200 V; the ratio is 5).
By activating communication with the release, the maximum remotely measurable voltage is
900 V.
NOTE:
if there is an external transformer present, the maximum measurable voltage
is: 900 V x ratio between primary voltage and secondary voltage (example: primary
voltage= 1000 V, secondary voltage 200 V; the ratio is 5).