| Item |
Description |
| Display |
Realtime measurement |
|
General |
Sampling/cycle |
128 |
| Commercial frequency |
50/60Hz |
| True RMS measurement |
|
| Voltage, current, power, power factor |
|
| Frequency |
42 - 69Hz |
| Neutral current[In]2 |
|
| Demand, peak demand, predicted demand1,2 |
|
| Maximum, minimum |
|
| Maximum2, minimum2, average2, within aggregation interval 3 |
|
|
4 Quadrant energy
|
kWh/kVarh received, kWh/kVarh delivered |
IEC62053-22 Class 0.2S |
| kWh/kVarh net[kWh/kVarh received - kWh/kVarh delivered] |
IEC62053-22 Class 0.2S |
| kWh/kVarh sum[kWh/kVarh received + kWh/kVarh delivered] |
IEC62053-22 Class 0.2S |
|
Power Quality
|
Harmonics |
Up to 63rd harmonic |
| Voltage/Current THD4, Current TDD5 |
Up to 63rd harmonic |
| Crest factor6,2, K–factor7,2 |
|
| Dip(Sag), Swell |
IEC61000-4-30 Class B |
| Unbalance(voltage, current)2 |
IEC61000-4-30 Class B, NEMA MG1 |
| Vector diagram2 |
|
| Harmonic graph(voltage, current)2 |
|
| Oscilloscope2 |
|
| Demand trend2 |
|
|
Event
|
Dip(Sag)/Swell event detection period |
Half cycle moving 1-cycle RMS Measuring |
| Digital input, analog input event detection period 8 |
1msec |
| Number of event logs |
Maximum 1,000 |
| Adding Module(Option) |
Adding of modules to rear side of meter |
Maximum 3 modules |
| Temperature |
Atmosphere temperature inside panel9 |
1 sensor |
|
Communication
|
Ethernet[Bridge, Modbus TCP protocol] |
2 port[Ethernet1, Ethernet2] |
| RS–485[Modbus RTU protocol] |
1 port[Ta, Tb] |
|
General
|
UL certification |
UL61010-1 |
| CE certification |
EN61326-1, EN61326-2-1 |
| 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 3700 is not displayed on LCD screen of Accura 3700. It is available only on communication.
3. Accura 3700 provides statistical information such as maximum, minimum, and average of voltage, current, and power within
aggregation interval. This includes information that measurement parameters instantaneously fluctuate, which makes it possible to
precisely analyze the power quality trend of voltage, current, and power.
4. THD[Total harmonic distortion], Voltage THD:
, Current THD:
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 available only when adding a module when adding modules having input channels.
9. It is not for firewatching, but for reference only. A temp sensor is mounted on the side of Accura 3700.
10. for communication with Energy Management Software.
11. Bridge enables network connection between two Accura 3700s without switching hubs.
