Power quality online monitor (non-contact)
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With the rapid development of China's Industrial Science and technology modernization, the loss caused by power quality is becoming more and more serious. Including finance, communication, data center, semiconductor, precision processing, electronics and modern service enterprises have put forward high requirements for power quality. It is of great significance to strengthen the power quality monitoring of power grid.
Non contact power quality online monitoring adopts unique non-contact voltage detection technology, which is safe and reliable. It can continuously monitor power quality parameters such as frequency deviation, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, temporary or instantaneous overvoltage, waveform distortion (harmonic), voltage sag, interruption and rise.
S/N | Sort | Indexes | Parameters | |
1 | Technical parameter indicators | Accuracy class | Current: 0.2 class, voltage 1.0 class, other 1.0 class | |
2 | Input range (V/A) | 0-1000V, 0-5AAC | ||
3 | Number of acquisition channels | 3-way voltage, 3-way current | ||
4 | Distortion rate | Voltage and current | ||
5 | Sampling Rate | 12.8ksps (can be set) | ||
6 | Recording time length | 200 cycles | ||
7 | Store waveform times | 100 | ||
8 | Harmonic order | Voltage and current 2-65 times | ||
9 | Inter harmonic order | Voltage and current 0.5-49.5 times | ||
10 | Three-phase unbalance | ≤1% | ||
11 | Frequency deviation | ≤0.01hZ | ||
12 | Frequency deviation | ≤1% | ||
13 | Voltage flicker | Pst≤5% Plt≤5% | ||
18 | Frequency response range (Hz) | 5Hz～3000Hz | ||
14 | Power supply
| Power supply(VDC/VAC) | AC85～265V/50Hz～60Hz | |
15 | Rated power consumption (W) | ≤3W | ||
19 | Communication function | Communication baud rate | 9600bps | |
20 | Communication Interface | RS485, 4G CAT1 | ||
21 | Communication protocol | Modbus | ||
22 | Environmental adaptation function | Operating temperature and humidity (℃) | -20~60℃, 0~95% no-dew (at 30℃) | |
23 | Waterproof level | Protection class (IP65) | ||
24 | Vibration | Test according to the test method of TB/T 2846-2015, the test conditions are in accordance with the requirements of vibration conditions in 4.2, X | ||
Y, Z three directions, each direction sweeps 5 times, when the frequency (f) is 10Hz ~ 200Hz, the acceleration is 20m/s² | ||||
25 | Anti-interference function | Overload capacity | 120% | |
26 | Temperature drift (ppm) | 500ppm (only for voltage and current detection accuracy) | ||
27 | Isolation withstand voltage (KVDC/KVAC) | AC：3500/1mA.1min | ||
28 | Surge shock immunity (KV) | TB/T3074 implementation | ||
29 | Static immunity | To inspect the chassis port, the quality index shall be in accordance with Article 6.2 Table 1 of GB/T 24338.5-2009, and the performance criterion shall be Class B, and the inspection method shall be in accordance with the standard GB/T 17626.2. |
1. Safe and reliable: the non-contact voltage monitoring mode is adopted, which is very practical and suitable for the stable and reliable high-voltage detection of the power supplier.
2. Comprehensive monitoring: full parameter monitoring, early warning and alarm of transient voltage, frequency and waveform with point power quality.
3. Remote management: it has the functions of early warning, remote setting of alarm threshold and remote software upgrade.
4. Complete varieties: it has high-voltage, low-voltage and high-precision monitoring units for power supply and user selection.
5. Fault location: the product has GPS positioning information to accurately locate the fault in time.
6. Data service: the Internet of things platform can be used to complete big data analysis, judgment and mobile phone personalized information service.
7. Flexible service: we can provide our users with platform data display, analysis and customized acquisition unit.