Arbiter Systems 931A, Руководство по эксплуатации

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“ 3Ph 4Wire 2.5E ” sets the Model 931A to measure values on a
3-phase delta circuit, for comparison with a 2.5-element transducer.
See Figure 3.16.
Use the internal operating software definitions for inputs as follows:
“VanIa”; “VbIb”; and “VcnIc” (i.e., a sequential measurement of the
following three combinations: voltage “A” to “N” with current “A”,
voltage “b” with current “B”, and voltage “C” to “N” with current
“C”). To create voltage “b”, connect the “B” voltage input to the
“N” voltage input.
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“ 3Ph 4 Wire 3E ” sets the Model 931A to measure values on a
3-phase Y circuit, for comparison to a 3-element transducer. See
Figure 3.17. Use internal operating software definitions for inputs
as follows:
“VanIa”; “VbnIb”; and “VcnIc” (i.e., a sequential
measurement of the following three combinations: voltage “A” to
“N” with current “A”; voltage “B” to “N” with current “B”; and
voltage “C” to “N” with current “C”).
Three-phase display and percent error calculations use the average
for V, A,
θ (phase), and PF, and the total for W, VAR, and VA.
3.8.1.2 Input Type
Select Input Type from the Transducer Configuration menu and press
ENTER to view the following sub-menu:
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“ Volts ” sets the Model 931A to make Voltage measurements at
the predefined input routed to Channel 1, for comparison to a
voltage transducer. For 3-phase configurations, the display shows
average voltage. See Section 3.2.2 for a description of AC voltage
measurements.
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“ Phase ” sets the Model 931A to measure the Phase Angle between
the voltage and current at the predefined inputs, for comparison to
a phase angle transducer. For 3-phase configurations, the display
shows average phase angle. See Section 3.6.1 for a description of
phase measurements.
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