Power quality monitoring仪Also known as harmonic power monitoring device, it is a high-performance multifunctional power quality testing and analysis instrument. Mainly solves the rapid increase in power load, especially the continuous growth of impulsive and nonlinear load capacity, which leads to waveform distortion, voltage fluctuation and flicker, and three-phase imbalance in the power grid.

Suitable for power plants, substations, wind farms, photovoltaic power stations, oil, coal mines, steel, metallurgy, chemical and other large-scale factories and mining enterprises with voltage levels of 220KV, 110KV, 35KV, 10KV, 6KV, and 380V. Main features: The voltage input adopts a high voltage isolation module, and the current input adopts a high-precision current transformer, which isolates the input signal from the measurement system and greatly improves the anti-interference ability of the instrument.

Multiple testing parameters: used to detect system frequency, grid harmonics, three-phase voltage imbalance, voltage fluctuation and flicker, voltage deviation, voltage fundamental effective value and true effective value, current fundamental effective value and true effective value, fundamental active power, fundamental apparent power, 2-63 harmonics, true power factor, and other parameters specified in the five national standards for power quality; High accuracy: meets the requirements of national standard A-level instruments. Reference algorithms are used for harmonics, three-phase imbalance, flicker, and fluctuations, without approximate calculations. High precision A/D (16 bit) is used for simultaneous sampling, with a collection rate of 12.8 kHz.

Communication and multi-channel testing: The communication interface supports RS-232 and 485, andOnline monitoring device for power qualityWith multiple testing channels and flexible configuration, it can measure 8-way 3-phase voltage signals and 8-way 3-phase current signals; Large capacity storage: Built in 512M memory, data is stored in units of 5 minutes, and each channel can continuously store 4 months of historical data.

Main purpose: Measurement and analysis: Frequency and voltage deviation, voltage fluctuation and flicker, allowable three-phase voltage imbalance, and power grid harmonics; Applying wavelet transform to measure and analyze the harmonics of non-stationary time-varying signals; Measure and analyze the impact of various electrical equipment on the power quality of the public power grid under different operating conditions; Record and store the trend of changes in power parameters such as voltage, current, active power, reactive power, frequency, phase, etc.

The power system power quality monitoring instrument can dynamically monitor the adjustment and operation process of power equipment; Analyze the dynamic parameters of reactive power compensation and filtering devices in the power system, and quantitatively evaluate their functions and technical indicators., It will cause the track to bend, and when hanging several tracks, it needs to pass through another horizontal plane and be in a straight line. Even if there is an error, the horizontal height cannot exceed 1 centimeter.