3
state of harmonic waves
Harmonic wave power measurement on single-phase
two-wire, single-phase three-wire*, and three-phase
three-wire* lines
Power content factor (bar graph)
Determine the direction of flow of harmonic waves
Power vector diagram
The
8 8 0 7 -
5 1
and
8 8 0 8 -
5 1
are
both capable of measurement of
single-phase two-wire lines, while
the
8808-
51
is also capable of
measurement of single-phase three-
wire*, dual single-phase two-wire*,
and three-phase three-wire* lines.
Both units can display numeric data
or a graphs for the active power,
active power content factor, and
power phase angle for each order of
harmonics. Because all analog input
channels are isolated, no problems
are encountered when measuring
two different single-phase two-
wire systems simultaneously, or if
connections are made incorrectly.
*
*8808-
51
only
The
8807-
51
and
8808-
51
both
allow you to input voltage on
channels 1 and 3 and current
on channels 2 and 4
(through the
clamp-on probe)
and then display a
power vector diagram for each
harmonic wave. This diagram
can then be used to determine
whether the harmonic waves are
flowing from the power supply
system or from the load.
- Product Specifications -
Connection types
Note: The waveform recording functions of the
8807-
51
and
8808-
51
MEMORY HiCORDERs
are identical to those of the
8807-
01
and
8808-
01
MEMORY HiCORDERs.
For details on specifications other than those concerning the harmonic wave analysis functions, refer to the catalog for the
8807-
01
and
8808-
01
MEMORY HiCORDERs
General specifications for the harmonic wave analysis section
Independent channels, single-phase two-wire*
1
, single-
phase three-wire*
2
, and three-phase three-wire*
2
*
1
8808-51
permits simultaneous analysis of two systems
*
2
8808-51
only
Independent channels:
Voltage,
9018, 9132, 3283, 3284, 3285, 9322
Other connections:
Possible with even channels set to voltage and odd
channels set to current.
When measuring power, the following conditions must be
met:
(1) The input type on the channel used for measuring
current must be set to
9018
or
9132.
(2) The input type on the channel used for measuring current
must be set to voltage with current scaling.
(The clamp probe that is used must have good phase accuracy.)
Instantaneous analysis mode
Numeric data + graph: harmonic wave RMS value, harmonic
wave content factor, harmonic wave phase angle, harmonic wave
active power
*
3
, harmonic wave active power content factor
*
4
,
harmonic wave power phase angle
*
4
Numeric data only: Total RMS value, total distortion-F
*
5
,
total distortion-R
*
6
, active power
*
4
, apparent power
*
4
, reactive
power
*
4
, power factor
*
4
Analysis types
*
4
Only when single-phase two-wire, single-phase three-wire, or three-phase three-wire is selected.
*
5
Ratio of all harmonic waves to fundamental wave
*
6
Ratio of all harmonic waves to total RMS value
Input settings
Vertical axis enlargement/
compression
Six levels of enlargement, from
×2
to
×100;
one level of
compression, to 1/2; logarithmic scale
When using a
HIOKI
Clamp-on probe, the current value
can be read directly, and can be set as desired.
Measurement target auto range function, checking for
reversed wiring, determination of phase sequence for three-
phase, three-wire connection
Automatically lowers the range sensitivity if the input
range is exceeded while taking measurements.
Can output a list of maximum and minimum values for the
results of each analysis across all recording times.
(Time series analysis mode only)
Supplemental functions
Scaling
Wiring and level
check functions
Over-range function
Tabulated results
output
Miscellaneous
Trigger mode
Fundamental
frequency range
45Hz to 65Hz
Automatic setting or manual setting (0.1Hz resolution)
Number of orders for analysis
Fundamental wave to 40th order
Analysis frequency band
45Hz to 2.6kHz
Amplitude accuracy
*
3
(on "×1" display)
* When using a clamp-on probe, add the accuracy of the probe.
3
Fundamental wave to 20th order: ±3.5˚
21st order to 40th order: ±7.5˚
(with content factor of 10%)
Phase accuracy
*
3
Fundamental wave to 20th order: ±3.5˚
21st order to 40th order: ±7.5˚
(with content factor of 10%)
*
3
When using a clamp-on probe, add the accuracy of the probe.
Cursor measurement, screen scrolling
Single, repeat
Permits selection of up to four types of harmonic wave
triggers; trigger conditions can be set for each type of
trigger.
(Harmonic wave trigger sources are ORed together, while harmonic
wave triggers are ANDed with external triggers and timer triggers.)
Free-run
operation when all triggers are OFF.
RMS value/content factor/active power value/power phase
angle/total RMS value/total distortion-R/total distortion-F
of any harmonic wave
Pre-trigger: 0, 5, 10 DIV.
(time series analysis mode)
Trigger timing: start only
Harmonic wave analysis function recording time
*
1
Storage in internal memory
Printing on paper without recording in memory
*
2
(Final 60 DIV are recorded in internal memory.)
Sampling frequency
400kS/s fixed
Number of FFT operations
512 points
(sampled during one cycle of the fundamental wave)
Waveform memory capacity
Analog 12 bits
×
16 kwords/channel
Harmonic waveform
32 bits
×
96 kwords
operation memory capacity
Function
Scaling, cursor measurement, wiring and level check function
Harmonic wave trigger function
Sources
Time series analysis mode
For any harmonic wave order number: RMS value/content factor/
phase angle/active power
*
4
/active power content factor
*4
/power
phase angle
*
4
Total RMS value, total distortion-F
*5
, total distortion-R
*
6
, active
power
*
4
, apparent power
*4
, reactive power
*
4
, power factor
*
4
Trigger types
Miscellaneous
Analysis types
*
4
Only when single-phase two-wire, single-phase three-wire, or three-phase three-
wire is selected.
*
5
Ratio of all harmonic waves to fundamental wave
*
6
Ratio of all harmonic waves to total RMS value
Time axis
5 min./DIV
(Number of analysis items is reduced depending on recording length)
5 hours (20 items) to 1 day (4 items)
6 days + 3.5 hours (4 items)
12 days + 7 hours (4 items)
36 days + 21 hours (4 items)
73 days + 18 hours (4 items)
221 days + 6 hours (4 items)
1 year + 77 days (4 items)
*
3,
*
4
2 years + 155 days (4 items)
*
3,
*
4
Number of simultaneous
analyses
Time axis
Recording time
Printing types
Enlargement/
compression
Up to 20 analyses (any combination); only four can be
simultaneously displayed or printed
5 minutes/12 hours/DIV, 7 ranges (80 samples/DIV)
Depends on time axis and number of simultaneous analyses
Dotted line graph or numerical data for each analysis value
(time display)
Vertical axis: Six levels of enlargement, from
×2
to
×100;
one level of compression, to 1/2; logarithmic scale
Time axis: Two levels of enlargement,
×2
or
×4;
six levels
of compression, from 1/2 to 1/48
*
1
*
2
*
3
*
4
10 min./DIV
10 hours (20 items) to 2 days (4 items)
30 min./DIV
1 day (20 items) to 6 days (4 items)
1 hour./DIV
2 days (20 items) to 12 days (4 items)
3 hour./DIV
7 days (20 items) to 37 days (4 items)
6 hour./DIV
14 days (20 items) to 75 days (4 items)
12 hour./DIV
30 days (20 items) to 150 days (4 items)
For the paper length, it is assumed that 1770 DIV will not use more than 30cm of paper.
Only a maximum of four items can be printed on paper.
One year is assumed to be 365 days.
The recording times shown in the table are simply the calculated values. If measurements are taken over several years,
wear on the equipment will begin to have an effect. Therefore, operation cannot be guaranteed.
ASM-SENSOR [ ASM GMBH ]
