Elspec G4410 User Manual

The table outlines the sections' Parameters including Calculation:
PARAMETER DEFINITION
Unbalance
The Supply Voltage Unbalance is Evaluated Using the Method of
Symmetrical Components in Accordance with IEC61000-4-30
Unbalance Avg.
The Average Supply Voltage Unbalance is Evaluated Using the Method
of Symmetrical Components in Accordance with IEC61000-4-30
Unbalance Min.
The Minimum Supply Voltage Unbalance is Evaluated Using the Method
of Symmetrical Components in Accordance with IEC61000-4-30
Unbalance
Max.
The Maximum Supply Voltage Unbalance is Evaluated Using the Method
of Symmetrical Components in Accordance with IEC61000-4-30
Zero Sequence
Unbalance
Negative
Sequence
Unbalance
Positive
Sequence
Defined as the symmetrical vector system derived by application of
the Fortescue’s transformation matrix, and that rotates in the same
direction as the power frequency voltage (or current):
U
1
= (U
a
+ U
b
+ U
c
) where and U
a
, U
b
, U
c
and are line to neutral voltages (fundamental component)
In Accordance With IEC61000-3-13, ed. 1.0 (2008-02) Ref: 3.26.3
Negative
Sequence
Defined as the symmetrical vector system derived by application of
the
Fortescue’s tr ansformation m atrix, a nd t hat r otates i n the
opposite direction to the power frequency voltage (or current):
U
1
= (U
a
+ U
b
+ U
c
) where and U
a
, U
b
, U
c
and are line to neutral voltages (fundamental component)
In Accordance With IEC61000-3-13, ed. 1.0 (2008-02) Ref: 3.26.4
Zero
Sequence
Defined as t he i n-
phase s ymmetrical v ector s ystem d erived b y
application of the Fortescue’s transformation matrix:
U
0
= (U
a
+ U
b
+ U
c
) where U
a
, U
b
, U
c
and a re l ine t o neutral
voltages (fundamental component)
In Accordance With IEC61000-3-13, ed. 1.0 (2008-02) Ref: 3.26.5
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Elspec G4410 Specifications

General

Brand	Elspec
Model	G4410
Category	Measuring Instruments
Language	English