Differences Between Electronic, Static And Servo Voltage Stabilizers
17/08/2024
Table of Contents Power stability is critical to the safe operation of many devices, but different
Power Quality Explained: Influencing Factors and Improvement Measures
Post Time: 2024-08-29 14:00:11
What is power quality?
Power quality refers to the overall quality of power supply, and the main indicators include frequency deviation, voltage deviation, voltage fluctuation and flicker, three-phase unbalance, temporary or transient overvoltage, waveform distortion (e.g., harmonics), voltage transient drops, voltage interruptions, voltage transient rises, and continuity of supply.
Ideally, the power system should provide a standard voltage at a constant frequency and sinusoidal waveform. However, in practice, power quality often fluctuates due to a variety of factors such as non-ideality of component parameters, random changes in loads, imperfections in the means of regulation, and faults and disturbances.
Main factors affecting electrical energy
1,Natural factors
Weather conditions such as lightning strikes, storms, rain and snow can cause damage to power equipment, and these factors are often unpredictable. Therefore, regular inspections and maintenance are effective means of reducing losses.
2,Operation of power equipment
Startup and shutdown of equipment can cause instantaneous changes in grid voltage and current. The tripping and reclosing operations of automatic switches can also cause voltage fluctuations, affecting power quality. For this reason, it is necessary to use power equipment produced by regular manufacturers in strict accordance with the operating procedures.
3、Non-linear loads and impact loads
non-linear loads such as frequency converters and arc furnaces, and impact loads such as electrified locomotives and welding machines will generate harmonic currents and harmonic voltages, polluting the power grid and affecting the power quality of other users. The sudden start and stop of these loads can also lead to voltage fluctuations and flicker in the grid.
Lack of attention to power quality may lead to production interruptions, equipment damage and even personal safety risks, especially for precision instruments with high voltage and harmonic requirements, such as machine tools, medical equipment and laboratory equipment.
Measures to improve power quality
Strengthen detection and management
Improve the detection and management level of the power system, install monitoring equipment, real-time monitoring of power status, regular inspection and maintenance to ensure the normal operation of the equipment, to avoid power quality problems caused by failures.
Reasonable use of control equipment
Such as reactive power compensation devices, harmonic filters and voltage regulators to reduce voltage fluctuations, flicker and harmonic problems.
Optimize power system design
Improve the circuit design of each link of power generation, transmission, transformation and distribution to minimize power fluctuations.
Raise awareness of power quality
Through education and publicity, increase awareness of the importance of power quality and rational use of power resources.
ZHENGXI: Power quality improvement program
As a supplier of power supply and electric power solutions, we are committed to improving power quality and power consumption efficiency, and provide mature product solutions. Below is the introduction of several representative products:
Reactor
ZHENGXI reactors have passed ISO9001-2015 and CE certifications to ensure product quality and are suitable for a wide range of applications such as photovoltaic, high-voltage starting and reactive power compensation.
Rectifier Transformer
ZHENGXI rectifier transformer provides AC power for rectifier and converts AC power to DC power, which has the advantages of energy saving, low loss, low noise, strong resistance to shock and short-circuit capacity, strong overload capacity and compact structure, reliable power supply.
Voltage regulator
ZHENGXI voltage stabilizers are suitable for various loads, featuring large capacity, high efficiency, wide voltage stabilization range, high precision, strong protection function, no waveform distortion and easy maintenance.
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