| Communication Combination Structure with Accura 2350s |
| Collects data from all Accura 2350s connected to Accura 2300S |
| Measurement Display of Accura 2350-3P/1P/3PSC/1PSC/1PSCSH selected on its LCD screen |
|
| Display |
LCD display of measurements of Accura 2350 2 |
|
|
Measurement |
Sampling/cycle for harmonic analysis |
64 |
| Sampling/cycle for RMS and power calculation |
32 |
| Measurement frequency range |
50/60Hz, 42-69Hz |
| Voltage |
±0.2% Reading |
| Current |
±0.2%[±0.5%16] Reading |
| Power, Power factor |
IEC62053-22 Class 0.5S[0.2S17] |
| Demand, Peak demand, Predicted demand 4,5 |
|
| Maximum, minimum after reset |
|
| Maximum5, minimum5, average5in aggregation interval14 |
|
|
Quadrant energy |
Received energy, delivered energy |
IEC62053-22 Class 0.5S[0.2S17] |
| Net energy[received energy - delivered energy] |
IEC62053-22 Class 0.5S[0.2S17] |
| Sum energy[received energy + delivered energy] |
IEC62053-22 Class 0.5S[0.2S17] |
|
Power quality |
Voltage/current THD11, Current TDD11 |
Up to 31st Harmonic |
| Crest factor12, 5, K-factor13, 5 |
|
| Dip[Sag], Swell |
IEC61000-4-30 |
| Unbalance[voltage,current]5 |
NEMA MG1 |
| Zero-sequence unbalance[voltage,current],Negative-sequence unbalance[voltage,current]5 |
IEC61000-4-30 |
| Vector diagram5 |
IEC61000-4-30 |
| Oscilloscope5 |
IEC61000-4-30 |
|
Measuring Event |
Dip[Sag], Swell event |
Half-cycle refreshed 1-cycle RMS Measurement |
| Phase open event |
|
| Fuse fail event |
|
| Over temperature event |
|
| Over current event |
|
| Over leakage current event |
|
| Over demand current event |
|
| Over power event |
|
| Number of event logs |
Maximum 100 |
|
Digital Input/Output |
Digital input14 |
2 channels, dry contact |
| Digital output14 |
1 channel, from A relay |
| Temperature |
Accura 2300 side surface temperature3 |
1 channel |
|
Communication |
External |
Ethernet[100Mbps/Full Duplex, Ethernet switching 9,RSTP10, Modbus TCP protocol]15 |
2 Ports[Ethernet1, Ethernet2] |
| RS-485[1,200-115,200bps,Modbus RTU protocol] |
1 Port[Ta, Tb] |
| Internal |
RS4856 |
2 Port[RJ12-1, RJ12-2] |
|
Combination |
Number of Accura 2350s connected to Accura 2300 |
Maximum 15/port7 |
| 6C telephone line1 extension length8 |
Maximum 6m/port |
|
General |
UL certification |
UL61010-1 |
| CE certification |
EN61326-1, EN61326-2-1, EN61010-1 |
| AC power |
AC 85 - 265V |
| AC power |
DC 100 - 300V |
1. Packaged with device. Core conductor of 6C telephone line should be minimum 0.128mm
2[26 AWG].
It is recommended that distance from power line is 5mm or more so that interference caused by noisy power line will not occur.
2. Accura 2300S displays only measurements of one Accura 2350 selected.
3. It is not for fire-watching, but for reference only. A temperature sensor is mounted on the side of Accura 2300S.
4. Prediction demand is calculated by assuming that current power is maintained during the remaining demand sub-interval.
5. Not displayed on LCD screen of Accura 2300S. It is available by only communication.
6. Only for communication with a number of Accura 2350s connected by 6C telephone line.
7. Maximum 15 Accura 2350s can be connected to each port[RJ12-1, RJ12-2] of Accura 2300S.
8. Maximum extension length of 6C telephone line from one port of Accura 2300S to the last Accura 2350 module connected.
9. Built-in Ethernet switch allows daisy-chain connection between Accura 2300S without additional external switches.
10. RSTP[Rapid Spanning Tree Protocol], IEEE 802.1D-2004.
11.THD[Total harmonic distortion], Voltage THD:
, Current THD:
TDD[Total demand distortion], Current TDD:
Where
can be current rating chosen only on communication between current rating[default] and peak demand current
12. Crest factor:
13. K-factor :
14. Accura 2300S provides maximum, minimum, and average statistical information on voltage, current, and power over the aggregation interval.
This allows accurate trend analysis of the quality of voltage, current,
and power because it includes information of measurement parameters that fluctuate instantaneously in the interval.
15. If RS-485 option is selected, digital input/output channels are substituted with RS-485 channel. Refer to ordering information.
16. Split-core three-phase [single-phase] power measurement module, Accura 2350-3PSC[1PSC] meets ±0.5% reading accuracy for current.
17. Split-core single-phase single-hole power measuring module, Accura 2350-1PSCSH-800A/630A/400A conforms to IEC62053-22 Class 0.2S.
