Elspec G4420 User Manual

77
ELSPEC
G
G
4
4
K
K
F
F
i
i
x
x
e
e
d
d
P
P
o
o
w
w
e
e
r
r
Q
Q
u
u
a
a
l
l
i
i
t
t
y
y
A
A
n
n
a
a
l
l
y
y
z
z
e
e
r
r
U
U
S
S
E
E
R
R
&
&
I
I
N
N
S
S
T
T
A
A
L
L
L
L
A
A
T
T
I
I
O
O
N
N
G
G
U
U
I
I
D
D
E
E
The table outlines the sections' Parameters including Definition:
PARAMETER
DEFINITION
The am ount o f A ctive P ower co nsumed a s u sable en ergy.
Somet
imes referred to as Real Power. The portion of power
flow t hat, averaged o ver a co mplete cycle o f t he A C
waveform, r esults i n the ne t tr ansfer o f e nergy i n o ne
direction expressed as kWh.
Active
Power
In most network configurations the Active Power
will reflect
a Positive Value. Should it have a Negative Value
, recheck
your Voltage & Current Polarity Configuration
. In the
presence o f a generator, t he Active Power
will reflect a
Negative Value.
Elspec calculates t he A ctive P ower a ccurately b y t aking al l
Harmonics up to t he 40th i nto a ccount using the f ollowing
formula:
i = Harmonic
j = Phase
The amount of Reactive Power consumed as unusable energy.
Energy that flows back and forth with no actual power flow.
Reactive Power flow transfers no net energy to the load and
is sometimes referred
to as Wattless power. Elspec calculates
reactive power using the following formula:
Reactive
Power
Elspec calculates the sign of Q using the following formula:
Sign of Q = sign of:
The a mount o f A pparent P ower; a v ector a ddi
tion of t he
Active an d R eactive Power. T he combination o f a ctive a nd
reactive energy (kVAh)
Apparent
Power
Elspec uses formula:
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Elspec G4420 Specifications

General

Brand	Elspec
Model	G4420
Category	Measuring Instruments
Language	English