Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

I. Analysis of the Principle of Power System Voltage RegulatorsBefore analyzing the principle of power system voltage regulators, it is necessary to analyze the excitation regulator and draw conclusions through comparison. In practical application, the excitation regulator uses voltage deviation as a feedback quantity for adjustment, thereby keeping the generator terminal voltage within the standard range. However, this type of voltage regulator, especially during grid faults, requires a large a

When evaluating power quality, voltage is a critical influencing factor. Voltage quality is typically assessed by measuring voltage deviation, fluctuation, waveform distortion, and three-phase symmetry—with voltage deviation being the most important indicator. To ensure high voltage quality, voltage regulation is generally required. Currently, the most widely used and effective method for voltage regulation involves adjusting the tap changer of power transformers.This paper primarily integrates

Long-Distance Power Line Distribution: Low Voltage and Large Voltage FluctuationsAccording to the "Technical Guidelines for Distribution Network Planning and Design" (Q/GDW 1738–2012), the supply radius of a 10 kV distribution line must meet the voltage quality requirements at the line’s end. In principle, the supply radius in rural areas should not exceed 15 km. However, in some rural regions, the actual supply radius may extend beyond 50 km due to low load density, small and widely dispersed e

Voltage is an important criterion in power quality testing. The quality of voltage determines whether the power system can operate safely and has a significant impact on the stability of the entire power grid system. Currently, voltage regulators are relatively common electrical equipment in power systems, capable of reasonably and scientifically controlling the entire process of high-voltage tests on electrical equipment, thereby continuously improving the feasibility of such tests.1. Requireme

Power voltage regulators are a major electrical equipment in distribution substations. Since the power supply capacity of most distribution substations is relatively small, the capacity of voltage regulators is generally below 1000 kV·A. Therefore, voltage regulators are transported to the site as complete units, with all accessories assembled at the factory before shipment. Hence, the installation work of power voltage regulators in distribution substations mainly includes transportation, visua

Linear voltage regulators are mainly classified into two types: shunt voltage regulators and series voltage regulators. The key difference between them lies in the connection of the control element: in a shunt voltage regulator, the control element is connected in parallel with the load; in contrast, in a series voltage regulator, the control element is connected in series with the load. These two types of voltage regulator circuits operate on different principles and thus have their own advanta