6.1 Checking Three-phase Systems
60
Quick Start Manual
4.
Checking the connections
Select item
Select from
pull-down
menu
Confirm
Make the following settings.
Setting Item
Selec-
tions
Checking the vector
∆Phase
(Phase range)
±10
Is the vector being measured within ±10°
of the nominal phase range for the ideal
vector of each phase?
∆Level
(Amplitude
range)
±10
Is the vector being measured within ±10%
of the nominal level range for the ideal
vector of each phase? (Voltage is set to a
percentage of the nominal voltage, and
current is set to a percentage of the
range.)
U/I Angle
(U/I phase dif-
ference)
-15
Is the vector being measured within -15°
of the nominal range for the phase differ-
ence of the voltage vector and current
vector for each phase? (Current is set to a
LAG of 15 degrees for the voltage.)
• Voltage vector diagram:
Are the U1, U2, and U3 vectors within the same colored nominal
ranges?
• Current vector diagram:
Are the I1, I2, and I3 vectors within the same colored nominal ranges?
VECTOR
Confirm the connec-
tion on the screen.
Remedy
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