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The main functions of the DC power supply within the high...
The main functions of the DC power supply within the high-voltage room are: 1. It provides power to the closing mechanism of the high-voltage switch. For example, electromagnetic (CD) closing mechanisms require high DC currents, while spring-charged (CT) closing mechanisms do not, requiring only ...Read More -
The functions of the PT cabinet
The functions of the PT cabinet in high-voltage switchgear are: 1. Voltage measurement, providing a voltage circuit for measuring meters 2. Providing operating and control power 3. Installing overvoltage protectors for each busbar section 4. Meeting relay protection requirements, such as busbar i...Read More -
Correct use of high-voltage switchgear grounding switch
The grounding switch in high-voltage switchgear is a mechanical grounding device used for safety maintenance. During electrical equipment maintenance, it grounds potentially energized circuit breakers or busbars to prevent induced voltage from harming maintenance personnel. The typical operation ...Read More -
High-voltage electrical testing and testing equipment
High-voltage electrical testing equipment is a specialized tool used to inspect, measure, and diagnose the performance and safety status of high-voltage electrical equipment (such as power transformers, circuit breakers, cables, and lightning arresters). The following are common categories and ty...Read More -
The main function of a transformer
The main function of a transformer is to step up and down the voltage, changing the AC voltage without changing the frequency of the AC power through the principle of electromagnetic induction. It also converts current, provides electrical isolation, protects circuits, and performs impedance matc...Read More -
Latest Developments in the Electrical Industry
Latest Developments in the Electrical Industry I. Development of New Energy Technologies With the growing global demand for renewable energy, new energy technologies are developing at an unprecedented pace. The utilization efficiency of renewable energy sources such as solar and wind power contin...Read More -
Knowledge of Electrical Equipment Systems
1. How many voltage levels are there in my country, and what are their functions? They are categorized as 500kV, 220kV, 110kV, 35kV, 10kV, 380V, and 220V. Since voltage is related to line loss, the higher the voltage, the lower the line loss. Therefore, the longer the distance the power needs to ...Read More -
The “Five Protections” of high-voltage switch...
The “Five Protections” of high-voltage switchgear are designed to ensure personal and equipment safety. Specifically, they include: preventing accidental opening and closing of circuit breakers; preventing opening and closing of disconnectors under load; preventing the connection (or ...Read More -
The energy efficiency level of the transformer
Transformer efficiency refers to the efficiency with which the transformer converts electrical energy into another voltage during operation. It represents the ratio between the energy consumed by the transformer during the energy conversion process and the energy output. High efficiency means low...Read More -
The core parameters of the transformer are no-load loss a...
Transformer losses are primarily categorized as no-load losses and loaded losses. No-load losses, also called iron losses, are primarily caused by hysteresis and eddy current losses in the core. They are voltage- and frequency-dependent, but independent of the load current. Load losses, also call...Read More -
Main technical parameters of transformer
Under specified operating conditions and operating conditions, the transformer’s key technical data is generally indicated on the nameplate. These primarily include: rated capacity, rated voltage and its tapping, rated frequency, winding connection group, rated performance data (impedance v...Read More -
Application of capacitor compensation in power system
Capacitor compensation is primarily used in power systems to improve power factor, improve voltage quality, reduce line losses, and enhance power supply system efficiency and stability. By properly deploying capacitors in a power system, they can compensate for the reactive power generated by ind...Read More
