Acrel APView400 Power Quality Monitor
Acrel APView400 Power Quality Monitor
General
Acrel Power quality monitor APView400 online power quality monitoring device integrates functions into a single device. The device meets the requirements of the national Class A standard for 35 kV and below regarding the standardization of measurement methods and measurement accuracy of power quality index parameters.
Front Panel
Wiring
2CT Current wiring
3CT Current wiring
2PT Voltage wiring
3PT Voltage wiring
Installation
Outline and Dimension
Typical Structure
Application
Acrel APView400 Power Quality Monitor
Functions
|
Steady state |
RMS voltage and current |
√ |
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| Frequency |
√ |
|||
| Fundamental phase angle and vector diagram |
√ |
|||
| Real-time voltage and current waveform |
√ |
|||
| P、Q、S、PF |
√ |
|||
| Ep+、Ep-、Eq+、Eq- |
√ |
|||
| Voltage and Current sequence components |
√ |
|||
| Current and voltage unbalance |
√ |
|||
| Voltage deviation |
√ |
|||
| Frequency deviation |
√ |
|||
|
Harmonics (2nd -63rd)
|
Harmonic voltage/current RMS |
√ |
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| Harmonic voltage/current ratio |
√ |
|||
| Total harmonic distortion(THD) of voltage/current |
√ |
|||
| Total demand distortion(TDD) of current |
√ |
|||
| Harmonic voltage/current phase angle |
√ |
|||
| Crest factor |
√ |
|||
| K-factor |
√ |
|||
| Odd harmonic distortion |
√ |
|||
| Even harmonic distortion |
√ |
|||
| Harmonic energy |
√ |
|||
| Harmonic power |
√ |
|||
|
Interharmonics (0.5th to 62.5th) |
Interharmonic voltage/current RMS |
√ |
||
| Interharmonic voltage/current ratio |
√ |
|||
|
Higher harmonics |
2.5kHz～8.9kHz |
√ |
||
| Voltage flicker (short-term flicker & long-term flicker) |
√ |
|||
| Voltage fluctuation |
√ |
|||
| Rapid voltage change |
√ |
|||
| DC volume |
√ |
|||
|
Temporary state |
Voltage interruption |
√ |
||
| Voltage dip |
√ |
|||
| Voltage swell |
√ |
|||
| Inrush current |
√ |
|||
|
Transient state |
Transient voltage |
√ |
||
| Transient current |
√ |
|||
|
Event recorder |
Temporary event | Trigger the threshold of temporary events |
√ |
|
| Steady event | Trigger the threshold of steady events |
√ |
||
| Log | Record the daily operation and running conditions |
√ |
||
|
Waveform recorder |
Event-triggered recording | Settable fault wave period |
√ |
|
| Manual recording | Settable recording sampling point |
√ |
||
| Timed recording | Settable recording sampling point |
√ |
||
| Host-triggered recording | Settable recording sampling point (supported by IEC61850 protocol) |
√ |
||
|
Communication |
IEC61850 |
■ |
||
| Modbus-RTU |
√ |
|||
| Modbus-TCP |
√ |
|||
| WebServer |
√ |
|||
|
Timing |
GPS timing(IRIG-B) |
√ |
||
| SNTP |
√ |
|||
| Manual timing |
√ |
|||
|
Hardware resources |
AI |
8 |
Analog input |
√ |
| DO |
5 |
Settable digital outputs |
√ |
|
| DI |
5 |
Digital inputs(passive contacts) |
√ |
|
| USB |
1 |
Maintenance |
√ |
|
| RS485 |
2 |
Modbus、IRIG-B |
√ |
|
| Ethernet port |
2 |
Communication and update |
√ |
|
Note: √- standard function; ■- option; × - not available
Monitor Accuracy
|
Basic functions |
Accuracy |
||
|
Steady state |
RMS Voltage |
±0.1% |
|
|
RMS Current |
±0.1% |
||
|
P,Q,S |
±0.2% |
||
|
Power factor |
±0.5% |
||
|
Ep+,Ep-,Eq+,Eq- |
Class 0.5 |
||
|
Voltage deviation |
0.1% |
||
|
Frequency deviation |
±0.001Hz |
||
|
Three-phase unbalance |
Voltage unbalance |
±0.15% |
|
|
Current unbalance |
±1% |
||
|
Harmonics (2nd -63rd) |
Harmonic voltage RMS |
When ≥1%,the error is ±5%. Error calculation: |
|
|
When<1%,the error is ±0.05%. Error calculation: |
|||
|
Harmonic current RMS
|
When ≥3%,the error is ±5%. error calculation: |
||
|
When <3%,the error is ±0.15%. Error calculation: |
|||
|
Interharmonics (0.5th to 62.5th) |
Interharmonic voltage RMS
|
When ≥1%,the error is ±5%. Error calculation: |
|
|
When<1%,the error is ±0.05%. Error calculation: |
|||
|
Interharmonic current RMS
|
When ≥3%,the error is ±5%. error calculation: |
||
|
When <3%,the error is ±0.15%. Error calculation: |
|||
|
Higher harmonics |
2.5kHz～8.9kHz |
||
|
Voltage flicker |
±5% |
||
|
Voltage fluctuation |
±0.2%Un |
||
|
Rapid voltage change |
±0.2%Un |
||
|
Manual/Timed recording |
Settable sampling points/ cycle |
||
|
Temporary state |
Event type |
Voltage dip |
Amplitude error: <±0.2%; time error: <±20ms |
|
Voltage swell |
Amplitude error: <±0.2%; time error: <±20ms |
||
|
Voltage interruption |
Amplitude error: <±0.2%; time error: <±20ms |
||
|
Inrush current |
Amplitude error: <±0.2%; Time error: <±20ms |
||
|
Temporary event record |
1024 points/ cycle |
||
|
Transient state |
Transient voltage |
20us |
|
|
Transient voltage |
20us |
||
|
Transient event record |
1024 points/ cycle |
||
|
Timing |
IRIG-B |
Absolute timing accuracy: ±1ms; clock accuracy: ±1s/24h |
|
|
SNTP |
Absolute timing accuracy: ±1ms; clock accuracy: ±1s/24h |
||
Reference Standard
|
GB/T 14549 Quality of electric energy supply―Harmonics in public supply network |
|
GB/T 18481 Power quality―Temporary and transient overvoltages |
|
GB/T 19862 General requirements for monitoring equipment of power quality |
|
GB/T 12325 Power quality― Deviation of supply voltage |
|
GB/T 12326 Power quality―Voltage fluctuation and flicker |
|
GB/T 15543 Power quality―Three-phase voltage unbalance |
|
GB/T 15945 Power quality―Frequency deviation for power system |
|
GB/T 24337 Power quality― Interharmonics in public supply network |
|
IEC 61000-4-30 Power quality measurement methods |
|
IEC 61000-4-15 Flickermeter―Functional and design specifications |
| IEC 61000-4-2 Electromagnetic compatibility― Testing and measurement techniques―Electrostatic discharge immunity test |
| IEC 61000-4-3 Electromagnetic compatibility― Testing and measurement techniques―Radiated, radio-frequency, electromagnetic field immunity test |
| IEC 61000-4-4 Electromagnetic compatibility― Testing and measurement techniques― Electrical fast transient/burst immunity test |
| GB/T 17626.5 电磁兼容 试验和测量技术 浪涌(冲击)抗扰度试验；IEC 61000-4-5 Electromagnetic compatibility― Testing and measurement techniques―Surge immunity test |
| IEC 60068-2-1 Environmental testing for electric and electronic products― Part 2: Test methods― Tests A: Cold |
| IEC 60068-2-2 Environmental testing for electric and electronic products― Part 2: Test methods― Tests B: Dry heat |
| IEC 60068-2-4 Environmental testing for electric and electronic products― Part 2: Test methods― Test Db: Damp heat, cyclic (12h + 2h cycle) |
| IEC 60529 Degrees of protection provided by enclosure (IP code) |
