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Nov 19,2024
Whether the motor needs on-site compensation depends mainly on its capacity and the grid conditions. When the motor capacity is large and the grid voltage fluctuates greatly, it is recommended to use on-site compensation. On-site compensation can improve motor efficiency and stability and reduce energy waste. As an important equipment in industrial production and daily life, the operating efficien...
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Feb 19,2025
In modern power systems, low-voltage capacitor cabinets, as an important reactive power compensation device, play an indispensable role. It can effectively improve the power factor of the power system, reduce line losses, improve the quality of power, and ensure the stable operation of the power system. Ⅰ. Working principle The low-voltage capacitor cabinet mainly realizes reactive power compensat...
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Mar 01,2025
I. Industry driving factors 1. Demand for new energy power generation and grid upgrades The volatility and intermittency of new energy power generation (such as wind power and photovoltaic power generation) put forward higher requirements for grid stability, and it is necessary to rely on power quality equipment (such as reactive power compensation and harmonic control) to achieve grid stability....
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Mar 14,2025
SVG low-voltage static reactive generator is mainly composed of control part, power part and starting part. The following is its detailed internal structure and working principle: Internal structure 1. Control part: mainly composed of computer, control board, sampling board, drive board, etc. The sampling board collects the voltage, current and other parameters of the power grid in real time. The ...
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Mar 25,2025
Low-voltage static VAR generator (SVG) and low-voltage capacitor cabinet are both devices used for reactive power compensation, but there are many differences in working principle, performance characteristics, application scenarios, etc., as follows: Working principle Low-voltage SVG: Based on power electronics technology, by controlling power devices such as IGBT, the DC side electric energy is c...
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Apr 24,2025
Analysis of the situation where the system load exceeds the transformer capacity configuration when the transformer and photovoltaic are used at the same time. Phenomenon and cause 1. Power fluctuation superposition: The power generation power of the photovoltaic system is affected by factors such as light intensity and weather conditions, and fluctuates significantly. When there is sufficient sun...
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Jun 19,2025
The application prospects of static VAR generators (SVG) in China's energy storage industry show significant growth potential, a trend driven by policy support, technological innovation and market demand. The following is an in-depth analysis based on the latest industry dynamics and technological progress: I. Strong support from policies and industry standards National policies clearly list SVG a...
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Jun 19,2025
In low-voltage power distribution systems (usually 400V and below), the hybrid solution of static VAR generator (SVG) and traditional capacitor compensation is a compromise between performance and cost. The following is an in-depth analysis of the advantages and disadvantages of hybrid compensation and the risk of component damage based on technical principles and application scenarios: Ⅰ. Technic...
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Nov 04,2025
1. Energy Storage System (ESS) Battert Energy Storage System(BESS) is essentially a large-scale battery installed within the electrical grid. Primary Function: To store electrical energy and release it when needed. Key Applications in a Substation: Peak Shaving: Charging during low-demand (low-cost) periods and discharging during high-demand (high-cost) periods, reducing strain on the grid and sav...
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Apr 01,2026
Product Uses: Intelligent reactive power compensation capacitor banks are "energy-saving experts" in power systems. Their main functions are: Compensating for reactive power losses in the power grid, improving the power factor, and avoiding power factor penalties for the power sector; (B) Reducing line losses and improving the power supply efficiency of the power grid; Stabilizing the power grid v...
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Apr 24,2026
Reactive Power Compensation Solution for Chemical Plants 1. Problem Background and Requirements Chemical plants typically operate numerous inductive loads, such as large motors (pumps, compressors, fans), transformers, variable frequency drives, and electric arc furnaces. During operation, these devices consume significant amounts of reactive power (Q), leading to the following issues: Low power f...
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Apr 30,2026
Is there a hidden trick in the electricity bill? The secret path to saving 30% on losses by improving the power factor from 0.7 to 0.95. I.The Impact, Benefits, and Improvement Principles of Power Factor: A building materials factory incurred an annual electricity cost overrun of 500,000 yuan due to a power factor of only 0.7—this is not an isolated case! During power supply, the user's power fact...
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May 08,2026
1.What is Harmonics? In power systems, the fundamental cause of harmonics is the presence of non-linear loads. When current flows through a load and does not maintain a linear relationship with the applied voltage, a non-sinusoidal current is formed, meaning harmonics are generated in the circuit. Harmonic frequencies are integer multiples of the fundamental frequency. As proven by the French math...
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May 22,2026
I. Equipment Selection and Upgrading 1. Selection of High-Efficiency Energy-Saving Equipment For motors, choose high-efficiency motors that meet the national Class 1 energy efficiency standard. These motors utilize advanced materials and manufacturing processes in their design and production. For lighting equipment, LED fixtures should be prioritized due to their high luminous efficacy and long li...
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Jun 09,2026
As global industries continue to modernize, the demand for reliable, efficient, and intelligent power distribution systems is growing rapidly. Manufacturing facilities, commercial buildings, energy projects, and public infrastructure all rely on stable electrical networks to ensure continuous operation. At ZDDQ(Anhui Zhongdian Electric Co., Ltd.), we are dedicated to providing advanced electrical ...
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Jun 15,2026
Analysis of the reasons for the decrease in power factor on the power supply side after the AHF only performs harmonic filtering: I. Increased total apparent power naturally leads to a decrease in the overall power factor. Power factor λ = P/S. Active power P is determined only by the fundamental active power; harmonics do not contribute. After filtering, the fundamental reactive power remains unc...
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Jun 18,2026
Choose the right one, not the most expensive one. This principle also applies to reactive power compensation. In the power industry's reactive power compensation process, the selection of high-voltage reactive power compensation equipment has always been crucial. Today, we'll discuss the applicable scope of high-voltage reactive power compensation equipment. In the context of reactive power compen...
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Jun 23,2026
Understanding Four-Quadrant Reactive Power Compensation Controller The four-quadrant reactive power compensation controller solves this pain point with full-range PQ vector detection. It accurately distinguishes four operating modes: grid supply with inductive loads, grid supply with capacitive loads, on-site power generation with inductive reactive power, and grid feedback with capacitive reactiv...
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