| Item |
Description |
| Display |
Realtime measurement LCD display |
|
|
General |
Sampling/cycle |
64 |
| Commercial frequency |
50/60Hz |
| True RMS measurement |
Voltage, current: 0.2% Reading |
| Frequency |
42 - 69Hz |
| Zero voltage9, zero current10 |
|
| Demand, peak demand, predicted demand1,2 |
|
| Maximum, minimum |
|
| Maximum2 minimum2, average within aggregation interval2, 3 |
|
|
4 Quadrant energy |
kWh/kVarh received, kWh/kVarh delivered |
IEC62053-22 Class 0.5S |
| kWh/kVarh net[kWh/kVarh received - kWh/kVarh delivered] |
IEC62053-22 Class 0.5S |
| kWh/kVarh sum[kWh/kVarh received + kWh/kVarh delivered] |
IEC62053-22 Class 0.5S |
|
Power Quality
|
Voltage/current harmonics |
Up to 31stharmonic |
| Voltage/Current THD4, Current TDD5 |
Up to 31stharmonic |
| Crest factor6,2,K factor7,2 |
|
| Unbalance[voltage, current] 2 |
IEC61000-4-30, NEMA MG1 |
| Vector diagram2 |
|
| Harmonic analysis graph[voltage, current]2 |
|
| Oscilloscope 2 |
|
| Demand trend2 |
|
|
Event
|
Fuse Fail, Phase Open, Black Out detection |
|
| Temperature Over detection |
|
| Number of event logs |
Maximum 50 |
| Temperature |
Atmosphere temperature inside panel8 |
1 sensor |
| Communication |
RS-485[1,200 ~ 115,200bps, Modbus RTU protocol] |
1 port[Ta, Tb] |
|
General
|
UL certification |
EN61010-13rd edition |
| CE certification |
EN61326-1, EN61326-2-1 |
| KC certification |
KN22, KN24 |
| AC power |
AC 85 - 265V |
| DC power |
DC 100 - 300V |
1 Predicted demand is calculated by assuming that present power is equal to power of the time remaining in the demand interval.
2 Accura 3300E is not displayed on LCD screen. It is available only on communication.
3 Accura 3300E provides statistical information such as maximum, minimum, and average of voltage,
current, and power within aggregation interval only on communication. This includes information
measurement parameters of instantaneously fluctuating, which makes it possible to precisely analyze the
quality trend of voltage, current, and power.
4 THD[Total harmonic distortion], Voltage THD:
, CurrentTHD:
5 TDD[Total demand distortion], Current TDD:
Where
can be current rating, which is chosen only on communication between current rating[default] and peak demand current.
6 Crest factor:
, 7 K factor:
8 It is not for firewatching, but for reference only.A temp sensor is mounted on the side of Accura 3300E.
9 Zero voltage is rms voltage by adding of three phase voltage in time domain.
10 Zero current is three times of zero-sequence current onthree phase fundamental current.
Zero current is equal to rms current by adding of three phase current in time domain.
