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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 switchgear

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 and full-load loss

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

Do you recognize the primary system diagram of the KYN28-12 switchgear?

A complete high-voltage system consists of the following components:   1. Incoming switchgear (receives power from the high-voltage system, i.e., the source of the high-voltage system) 2. PT switchgear (provides busbar voltage signals for this section of the high-voltage system, enabling ene... Read More

Application of armored high-voltage cabinet（KYN28） power system

“Armored KYN28 Switchgear” is the common name in the power industry for the KYN28A-12 armored removable AC metal-enclosed switchgear. This type of high-voltage switchgear is designed specifically for indoor power distribution systems. The following is a comprehensive description of it... Read More

Installation and application of cable branch boxes in urban construction

With the acceleration of urban construction, the conflict between 10kV line corridor planning and urban development and construction is becoming increasingly severe. To meet the needs of social development and ensure safe, stable, and reliable power supply, cable lines are being implemented in ke... Read More
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