The analyzer replaces the PQM-703 unit.
Class A remote analysis
The Sonel PQM-711 versatile power quality analyser for remote analysis in the A class is a device suitable for use on all types of networks with a rated voltage range from 110 V to 1000 V either directly or indirectly through transformers.
Based on advanced technology, the Sonel PQM-711 power quality analyser allows comprehensive measurement, analysis and recording of 50/60 Hz power network parameters and power quality according to the European standard EN 50160.
Features
Measured parameters
Wide range of mains to analyze
Capabilities
PQM-711 has a built-in GPS receiver ensuring real time clock accuracy and an integrated GSM modem that facilitates remote analyzer operation. Furthermore, PQM-711 is also equipped with a transient recorder (sampling frequency 10 MHz, voltage range up to ±8000 V).
An additional trump card of the analyzer is the built-in Wi-Fi communication module, providing a number of advantages: no restrictions on file transfer, no data transfer costs, use of local wireless infrastructure... This gives the user the opportunity to adapt to the conditions prevailing on the site. They can supervise measurements from a convenient location – for example, an area without electromagnetic interference – using a laptop, smartphone or tablet.
Displaying data
PQM-711 can be operated using a touch screen computing device equipped with Sonel Analysis software (Windows) or Sonel Analysis Mobile app (Android). The user can supervise the measurements and conduct diagnostics while maintaining mobility – he doesn’t even have to be near the analyzer. In typical applications, the device plays the role of a remote display and an intermediate storage of measurement data with the functionality of a router. Therefore, the user can also connect to it using a wireless network – for example, to transfer the collected registrations to a desktop computer.
Application
PQM-711 is widely used in the professional power industry. It provides full 4-quadrant analysis, meeting the needs of energy consumers and producers, such as renewable energy, including photovoltaic and wind farms. It enables forecasting failures in distribution networks. It provides analysis of the load capacity of networks and transformers, as well as recording their current states. In addition, it is powerful investment tools. Thanks to PQM-711, the user will obtain the necessary data for development of power infrastructure, predict potential problems, and finally – verify the correctness and quality of implementation.
SONEL ANALYSIS
Sonel Analysis software – application delivered as standard accessory, indispensable for working with PQM-series analyzers. Depending on the mating instrument used, the software enables:
The software enables readout of selected parameters and their visualization in real time. These parameters are measured independently from the registration saved on the memory card. The user can view:
| Parameter | Measuring range | Max. resolution | Accuracy | |
|---|---|---|---|---|
| Alternating voltage (TRMS) UL-L MAX= 2000 V for UL-PE MAX = 1000 V* UL-L MAX= 1520 V for UL-PE MAX = 760 V* |
- | 0,0…1000,0 V or 0.0…760.0 V* | 4 significant digits | ±0.1% Unom |
| Crest Factor | Voltage | 1.00…10.00 (≤1.65 for 690 V voltage | 0.01 | ±5% |
| Crest Factor | Current | 1.00…10.00 (≤3.6 dla Inom) | 0.01 | ±5% |
| Alternating current (TRMS) | - | depending on clamp** | 4 significant digits | ±0.1% Inom (error does not account for clamp error) |
| Frequency | - | 40.00...70.00 Hz | 0.01 Hz | ±0.01 Hz |
| Active, reactive, apparent and distortion power | - | depending on configuration (transducers, clamps) | 4 significant digits | depending on configuration (transducers, clamps) |
| Active, reactive and apparent energy | - | depending on configuration (transducers, clamps) | 4 significant digits | as power error |
| cosφ and power factor (PF) | - | -1.00...1.00 | 0.01 | ±0.03 |
| tgφ | - | -10.00...10.00 | 0.01 | depends on error of active and reactive power |
| Harmonics and interharmonics | Voltage | DC, 1...50 | as for alternating voltage True RMS | ±0.05% Unom for m.v. < 1% Unom ±5% m.v. for m.v. ≥ 1% Unom |
| Harmonics and interharmonics | Current | DC, 1...50 | as for alternating current True RMS | ±0.15% Inom for m.v. < 3% Inom ±5% m.v. for m.v. ≥ 3% Inom |
| THD | Voltage and current | 0.0..100.0% (relative to RMS value) | 0.1% | ±5% |
| Active and reactive power of harmonics | - | depending on configuration (transducers, clamps) | epends on minimum current and voltage values | - |
| Angle between current and voltage harmonics | - | -180.0…+180.0° | 0.1° | ±(n x 1°) |
| K-Factor | - | 1.0...50.0 | 0.1 | ±10% |
| Flicker index | - | 0.20...10.00 | 0.01 | ±5% |
| Unbalance factor | Voltage and current | 0.0...20.0% | 0.1% | ±0.15% (absolute error) |
| Measurement of control signals | Voltage | up to 15% Unom at 5.00...3000.00 Hz | 4 significant digits | unspecified for <1% Unom ±0.15% for 1...3% Unom ±5% for 3...15% Unom |
| Measurement of transients | Voltage | ±8000 V | 4 significant digits | ±(5% + 25 V) |
m.v. – measured value
* Depending on analyzer version
**
| Parameter | Value |
|---|---|
| Net weight (kg) | 1.7 |
| Package weight (kg) | 8.6 |
| Package width (cm) | 53 |
| Package height (cm) | 45 |
| Package length (cm) | 21 |
