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Help CenterHigh-Precision Power Quality Analyzer - Measures Harmonics, Voltage Fluctuation, Three-Phase Unbalance
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With the vigorous development of my country's national economy, the power load has increased dramatically, especially the continuous growth of impact and nonlinear load capacity of power electronic switching equipment, electrified railways, arc furnaces, etc., which has caused the power quality of the power system to deteriorate. The power quality problems such as waveform distortion, voltage fluctuation and flicker, and three-phase imbalance in the power grid are becoming more and more serious. As a result, transformer overheating, increased network loss, metering instrument errors, and communication interference will not only reduce the safety of the power supply and use equipment itself, but also seriously threaten the safety and economic operation of the power system. In order to protect the safe operation of the power system, all countries currently attach great importance to the management of power quality and have formulated relevant standards. my country has also successively promulgated national standards involving seven aspects of power quality, and relevant departments have also formulated corresponding "Power Quality Management Measures" - Appendix.
After a thorough investigation of power quality measurement and control, a careful analysis of the current status of similar products at home and abroad, and tracking the advanced level of international peers, our company has successfully developed a new generation of SC-GP-PQM power quality online monitoring device.
This device is a high-performance multifunctional power quality test and analysis instrument. It adopts DSP+ARM+CPLD core, 4.3-inch large-screen color LCD display, more compact structure and more powerful functions. It is suitable for 220KV, 110KV and 35KV substations, power plants and large electricity users.
1 Service ConceptOur company solemnly promises:
You buy not only the product, but also the meticulous and thoughtful technical support service ! ! ! ( =^_^= )
This product only needs ordinary workers to connect the power and install it on site! No debugging is required!
We provide free remote guidance, remote configuration and debugging services, and send data to the user's designated cloud platform.
Free IoT solution consulting services!
2 Product Features2.1 Main Application(1) Measurement and analysis of the quality of AC power supplied from the public power grid to the user end.
(2) Apply wavelet transform to measure and analyze the harmonics of non-stationary time-varying signals.
(3) Measure and analyze the power quality of the public power grid affected by various electrical equipment under different operating conditions.
(4) Regularly record and store changes in power parameters such as voltage, current, reactive power, frequency, and phase.
(5) Dynamic monitoring of power equipment to help users solve problems that arise during the adjustment and commissioning of power equipment.
(6) Test and analyze the causes of power system failures such as circuit breaker operation, transformer overheating, motor burnout, and automatic device malfunction.
(7) The characteristics of online, multi-parameter and high precision make the instrument widely used in power transmission and distribution, power electronics, motor drive and other fields.
2.2 Technical indicators of detection device(1) Frequency measurement
Measuring range: 45～55Hz, center frequency 50Hz, measuring condition: signal fundamental component is not less than 80% FS
Measurement error: ≤0.01Hz
(4) The allowable error of fundamental voltage is ≤0.5%FS; the allowable error of fundamental current is ≤1%FS
(5) Measurement error of the phase difference between fundamental voltage and current: ≤0.5°
(6) Harmonic voltage content measurement error: ≤0.1%
(7) Harmonic current content measurement error: ≤0.2%
(8) Three-phase voltage unbalance error: ≤0.2%
(9) Three-phase current imbalance: ≤1%;
(10) Voltage deviation error: ≤0.2%
(11) Voltage variation error: ≤0.2%
(12) Power error: ≤0.5%
(13) Flicker error: ≤5%
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