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

Chinese reactor manufacturer successfully completed all tests in one go for the nation’s largest-capacity 750 kV, 140 Mvar stepped-controlled shunt reactor developed for the Turpan–Bazhou–Kuche II Circuit 750 kV transmission and transformation project. The successful completion of these tests marks a new breakthrough in the core manufacturing technology of 750 kV reactors by the Chinese manufacturer, pioneers a new field for 750 kV stepped-controlled shunt reactors in China, and lays a solid fou

Reactor (Inductor): Definition and TypesA reactor, also known as an inductor, generates a magnetic field within the surrounding space when current flows through a conductor. Therefore, any current-carrying conductor inherently possesses inductance. However, the inductance of a straight conductor is small and produces a weak magnetic field. Practical reactors are constructed by winding the conductor into a solenoid shape, known as an air-core reactor. To further increase inductance, a ferromagnet

1 Relevant Theories of Small Neutral Point Reactors in 500kV Substations1.1 Definitions and RolesA reactor is a key power system component that controls the phase relationship between AC current and voltage, divided into inductive and capacitive types. Inductive reactors limit short-circuit currents and improve stability; capacitive ones enhance transmission efficiency and voltage quality. A small neutral point reactor is a specialized type connected between a three-phase system's neutral point

1 Technical Features and Standard References of 500kV Dry - type Shunt Reactors1.1 Technical FeaturesThe 500kV dry - type shunt reactor, an oil - free power device for ultra - high - voltage transmission systems, boasts core features like advanced insulation, innovative heat dissipation, optimized electromagnetic design, and modular structure. These advantages, outperforming traditional oil - immersed reactors, also drive new technical standard demands. Advanced Insulation: Using epoxy resin cas

1 Investigation of Insulation Defects in UHV Oil - immersed ReactorsKey challenges in high - voltage oil - filled reactors during operation include insulation faults, iron - core magnetic leakage heating, vibration/noise, and oil leakage.1.1 Insulation FaultsParallel - connected reactors, once connected to the main grid’s primary coil and put into use, operate at full power long - term. Sustained high voltage raises operating temperatures, accelerating aging of coil insulation material

Reactors are key for reactive power compensation in power systems, with magnetically controlled reactors as a research focus. A smart grid, upgrading the traditional one via advanced tech, boosts safety and reliability, raising demands for controllable reactors. Thus, developing new - type ones matters. This paper, combining practice, explores their structural design and application to drive innovation and enhance smart grid construction.1 Functions and Application Status of Controllable Reactor

Classification of Reactors by Function (Main Applications)Reactors play a crucial role in power systems. One of the most common and important ways to classify them is by their function — that is, what they’re used for. Let’s take a closer look at each type in simple, easy-to-understand terms.1. Current-Limiting Reactors Series ReactorsThese reactors areconnected in serieswith the circuit — kind of like a speed bump in the electrical flow.Purpose: Increase

1 Vibration Monitoring and Fault Diagnosis Technology for High - Voltage Shunt Reactors1.1 Measuring Point Layout StrategyVibration characteristic parameters (frequency, power, energy) of high - voltage shunt reactors are fully recorded in operation logs. For vibration analysis, focus on resolving the complexity of electric field distribution at winding ends. Quantitatively evaluate field - strength distribution under operating/lightning overvoltage and voltage gradient characteristics of longit

1.Gas Generation and Analysis Principle of High - Voltage ReactorsHigh - voltage reactors use oil and insulating paper for insulation. Normal operation may see local overheating or discharges (e.g., iron core/winding issues, inter - turn short circuits), causing insulation cracking and producing gases like hydrocarbons (methane, etc.), CO, CO2, H2). These gases reflect internal insulation status, enabling real - time monitoring.For closed oil - filled reactors, insulation aging and oil oxidation

What is Capacitive Voltage Transformer?Definition: A capacitive voltage transformer (CVT), also known as a capacitive potential transformer, steps down high - voltage input signals to provide low - voltage signals that can be easily measured by measuring instruments.The capacitive potential divider, inductive element, and auxiliary transformer are the three main components of a capacitive potential transformer.Why is a Capacitive Voltage Transformer (CVT) Needed?When measuring high voltages abov