electric

1. The nature of electric chargeThere is an interaction force between electric charges. Like charges repel each other, while opposite charges attract each other.2. Electric fieldA special substance exists around a charged body, which acts on any charge placed within it with force. This special substance is called an electric field.3. Electrical resistance, what factors […]

1. About Dry-Type Transformers Dry-type transformers refer to transformers in which cores and windings are not immersed in insulating oil. There are two cooling methods for dry-type transformers: natural air cooling (AN) and forced air cooling (PF). There are two structural types of dry-type transformers: solid-cast insulation (SCB type) and non-encapsulated winding structures. From the

Transformers and induction motors are essential in modern industrial production and daily power systems. Understanding their working principles, operating conditions, and maintenance methods can enhance equipment efficiency and significantly extend their service life. This article provides a comprehensive analysis of transformers and induction motors, offering valuable insights for operators and maintenance teams. 1. Detailed Explanation

Transformers are critical electrical components used in power systems for transferring energy between circuits, changing voltage levels, and adapting currents for various applications. A deeper understanding of transformers’ cooling methods, operational parameters, and safety measures can help optimize their efficiency and lifespan. Here, we’ll cover key aspects of transformer operations, focusing on electromagnetism, cooling protocols,

Guide on Transformer Operation: Principles for Engaging and Disengaging Transformers Transformers play a vital role in power systems, enabling safe and efficient voltage transformations. Correct operational procedures for transformer start-up and shutdown are essential to ensure seamless integration with power systems and to avoid potential damage. Here, we outline the standard operational principles for transformer

Regular insulation resistance testing of transformers is essential to ensure operational safety, extend equipment lifespan, and prevent electrical faults. This process, often conducted with a megohmmeter (also known as a “megger”), allows operators to measure insulation quality and detect potential leakage currents that may compromise transformer performance. Below, we discuss key considerations when performing insulation

Transformer oil plays a crucial role in insulation and cooling within transformers. Monitoring oil temperature is essential for preventing overheating, maintaining efficiency, and ensuring transformer longevity. Here, we’ll explore the main factors that influence transformer oil temperature and discuss ways to manage these influences to keep transformers running efficiently and safely. 1. Load Variation Load