-
Apr 16,2026
Low-Voltage Static Var Generator Reactive Power Compensation Device Description Application Scenarios for SVG Reactive Power Compensation Devices Reactive power compensation devices should be installed wherever low-voltage transformers or large-scale electrical equipment are present; their installation is particularly mandatory in industrial facilities, commercial enterprises, and residential area...
read more
-
Apr 17,2026
Low Voltage APF Active Power Filter APF Active Power Filter APF stands for Active Power Filter.Also known as Active Harmonic Filter.What is filtering?To put it simply: tap water in rivers contains all kinds of pollutants, and we install a water purifier at home to filter out impurities. Similarly, the current in the power grid is just like river water. APF filters out interference (impurities) in ...
read more
-
Apr 21,2026
Cycloconverters – the direct AC-to-AC power conversion circuits – hold a special place in high-power, low-speed applications like rotary kilns, mine hoists, and ship propulsion systems. Unlike conventional rectifier-inverter combinations, cycloconverters adjust output frequency without an intermediate DC link. However, this direct conversion comes at a cost: complex power factor behavior and prono...
read more
-
Apr 22,2026
Capacitor compensation cabinets can effectively improve the power factor of the power grid, save energy, and improve power supply quality. Power factor refers to the percentage of apparent power in a power grid that is used to supply active power. In the operation of a power grid, a higher power factor is desirable. If this is achieved, most of the apparent power in the circuit will be used to sup...
read more
-
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...
read more
-
Apr 28,2026
The Electrical Industry is Undergoing a Transformation! Four Core Technologies Supporting the Future of New Power Systems With the advancement of "dual-carbon" goals and the accelerated implementation of new power systems, the electrical industry has long since moved beyond the old model of "traditional operation and maintenance," ushering in a profound transformation towards greening, intelligenc...
read more
-
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...
read more
-
May 05,2026
In power systems, transformers, as core equipment, undertake the crucial task of voltage conversion. However, due to manufacturing defects, environmental factors, and long-term operational wear, various faults frequently occur—oil leakage, abnormal oil levels, damage to the oil conservator bladder, deformation of the cooling system, and abnormal internal noises are common problems. These issues no...
read more
-
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...
read more
-
May 11,2026
In power supply systems, power factor is a crucial indicator, directly reflecting the efficiency of electrical equipment. A higher power factor means that electrical equipment is fully utilized and operates more efficiently; conversely, a lower power factor means lower utilization, like a car with a powerful engine that fails to deliver its full potential due to various reasons, wasting energy. Po...
read more
-
May 13,2026
With the rapid development of power electronic devices and microelectronics technology, a large number of nonlinear electrical equipment are widely used in industrial fields such as metallurgy, steel, energy, transportation, and chemical industry. For example, electrolysis equipment, electric locomotives, rolling mill machinery and high-frequency equipment are connected to the power grid, which ma...
read more
-
May 15,2026
1.Basic Concepts and Definitions Power Quality: In a general sense, power quality refers to high-quality power supply. The power sector may define power quality as the compliance rates of voltage and frequency, as well as the annual hours of uninterrupted power supply, using statistical figures to demonstrate the safe and reliable operation of the power system. Electricity consumers may simply def...
read more
-
May 21,2026
In low-voltage power supply and distribution system design, reactive power compensation capacitor banks and active harmonic filter banks are commonly used devices to improve the operating conditions of the power grid. The installation sequence of these two on the busbar directly affects the harmonic mitigation effect, the reactive power compensation operation status, and the service life of...
read more
-
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...
read more
-
May 25,2026
1. Introduction Three-phase unbalance is a prevalent power quality issue in low-voltage distribution systems, mainly caused by dispersed single-phase loads, charging piles and residential electricity consumption. Two mainstream solutions are widely used in the industry: mechanical relay phase-switching balancers and IGBT-based active compensation devices (SVG/APF/Active Load Balancer). This articl...
read more
-
May 27,2026
In low-voltage power supply and distribution system design, reactive power compensation capacitor banks and harmonic filter banks are commonly used devices to improve the operating conditions of the power grid. The installation sequence of these two on the busbar directly affects the harmonic mitigation effect, the reactive power compensation operation status, and the service life of the el...
read more
-
Jun 03,2026
As a key piece of equipment for reactive power compensation in power systems, the operating status of capacitor banks directly affects the power factor, voltage stability, and energy efficiency of the power grid. With the rapid development of power systems, capacitor banks, as crucial reactive power compensation equipment, play an irreplaceable role in improving power factor, enhancing grid qualit...
read more
