Hyundai N700E-055HF, Инструкция по эксплуатации

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N700E INSTRUCTION MANUAL
8.3
General Inverter Electrical Measurements
The following table specifies how to meas
The diagrams on the next page show
for these parameters.
I
R
I
S
I
T
W
11
W
12
E
S
E
R
E
T
I
U
I
V
I
W
W
01
W
02
E
V-W
E
U-V
E
W-U
R
S
T
Power
Supply
U
V
W
R
S
T
U
V
W
I
N
V
E
R
T
E
R
Motor
Parameter
Circuit location
of measurement
Supply
voltageE
1
R-S, S-T, T-R
(E
R
) (E
S
) (R
T
)
Supply current
I
1
R, S, T, Current
(I
R
) (I
S
) (I
T
)
Supply power
W
1
R-S, S-T
(W
11
) + (W
12
)
Supply power
factor
P
f1
Calculate the output power factor from the outputvoltage E
output current I
Output voltage
E
0
U-V, V-W, W-U
(E
U
) (E
V
) (E
W
)
Output current
I
0
U, V, W Current
(I
U
) (I
V
) (I
W
)
Output power
W
0
U-V, V-W
(W
01
) + (W
02
)
Output power
factor
P
f0
Calculate the output power factor from the output
output current I
Note1: Use a meter indicating a fundamental wave effective value for voltage, and meters indicating total
effective values for current and power.
Note2: The inverter output has a PWM waveform, and low frequencies may cause erroneous readings.
However, the measuring instruments and methods listed above provide comparably accurate results.
Note3: A general-purpose digital volt meter (DVM) is not usually suitable to measure a PWM wa
(not pure sinusoid)
8-4
General Inverter Electrical Measurements
The following table specifies how to measure key system electrical parameters.
The diagrams on the next page show inverter-motor systems the location of measurement points
I
R
I
S
I
T
W
11
W
12
E
S
E
R
E
T
I
U
I
V
I
W
W
01
W
02
E
V-W
E
U-V
E
W-U
R
S
T
Power
Supply
U
V
W
R
S
T
U
V
W
I
N
V
E
R
T
E
R
Motor
Circuit location
of measurement
Measuring instrument Notes
Moving-coil type
voltmeter or rectifier
type voltmeter
Fundamental
wave effective
value
Current
Moving-coil type
Ammeter
Total effective
value
Electronic type
wattmeter
Calculate the output power factor from the outputvoltage E
1
,
output current I
1
, and output power W
1
Rectifier type voltmeter
Total effective
value
Current
Moving-coil type
Ammeter
Total effective
value
Electronic type
wattmeter Total effective
value
Calculate the output power factor from the output voltage E
0
,
output current I
0
, and output power W
0
1: Use a meter indicating a fundamental wave effective value for voltage, and meters indicating total
effective values for current and power.
PWM waveform, and low frequencies may cause erroneous readings.
However, the measuring instruments and methods listed above provide comparably accurate results.
purpose digital volt meter (DVM) is not usually suitable to measure a PWM wa
eters.
tion of measurement points
I
R
I
S
I
T
W
11
W
12
E
S
E
R
E
T
I
U
I
V
I
W
W
01
W
02
E
V-W
E
U-V
E
W-U
R
S
T
Power
Supply
U
V
W
R
S
T
U
V
W
I
N
V
E
R
T
E
R
Motor
Reference
Value
Fundamental
ffective
Commercial
supply voltage
(200V class)
200-220V 5Hz
200-240V 6Hz
(400Vclass)
380-415V 5Hz
400-480V 6Hz
effective
tive
tive
tive
1: Use a meter indicating a fundamental wave effective value for voltage, and meters indicating total
PWM waveform, and low frequencies may cause erroneous readings.
However, the measuring instruments and methods listed above provide comparably accurate results.
purpose digital volt meter (DVM) is not usually suitable to measure a PWM waveform