English
RFQ

Download the app

What is a Core Transformer?

08/08/2024

What is a Core Transformer?

Air Core Transformer Definition

An air core transformer is defined as a transformer that uses air instead of a ferromagnetic core to link the magnetic flux between its windings.

Principle of Operation

It operates on electromagnetic induction, where an alternating current in the primary coil induces an emf in the secondary coil.

Construction Types

Air core transformers can be cylindrical, with wires wound on a non-metallic cylinder, or toroidal, with wires wound around a plastic ring.

High-Frequency Suitability

They are suitable for high-frequency applications due to their noise-free operation and avoidance of electromagnetic distortion.

Advantages

These transformers are lightweight and avoid losses and saturation problems associated with ferromagnetic cores, making them ideal for portable electronic devices.

Topics

Machines Transformers Core Transformer

Wenzhou Rockwell Transformer Co., Ltd. It is a high - tech enterprise integrating R & D, production, sales, and service. It focuses on the manufacturing of power transformers and supporting equipment, and is committed to providing efficient, reliable, and energy - saving power transmission and distribution solutions for global customers. We can offer: •Distribution transformers and substations •Outdoor switchgears and breakers(recloser) •Switchgears and it’s components (GIS, RMU, VCB, SF6 CB) Market and Service: We always take customers as the orientation and provide customized services according to their requirements. Our products are exported to the Middle East, Africa, Northern Europe, South America, and many other countries and regions. Drive the future of electricity with technological innovation and become a leading global supplier of intelligent power equipment.

Fault Analysis and Treatment of Oil-Immersed Transformers

Fault Analysis and Treatment of Oil-Immersed Transformers

Oil Leakage at Welded JointsOil leakage at welded joints primarily stems from poor welding quality, such as incomplete or detached welds, and defects like pinholes and gas pores. Although oil-immersed transformers are initially coated with solder and paint during manufacturing, potentially masking these issues temporarily, the defects tend to surface during operation. Additionally, electromagnetic vibration can cause weld cracks, leading to oil leakage.To resolve such leaks, the first critical s

What losses occur during operation of the transformer? How to reduce losses?

What losses occur during operation of the transformer? How to reduce losses?

Transformers experience various types of losses during operation, primarily categorized into two main types: copper losses and iron losses.Copper LossesCopper losses, also known as I²R losses, are caused by the electrical resistance of the transformer windings—typically made of copper. As current flows through the windings, energy is dissipated in the form of heat. These losses are proportional to the square of the load current (I²R), meaning they increase significantly with high

Transformer Detection, Testing, Maintenance and Servicing

Transformer Detection, Testing, Maintenance and Servicing

Transformer testing, inspection, and maintenance are essential tasks to ensure normal operation and extend the service life of transformers. Below are some recommended steps:Visual Inspection: Regularly inspect the transformer's exterior, including the enclosure, cooling system, and oil tank. Ensure the enclosure is intact, free from corrosion, damage, or leakage.Insulation Resistance Testing: Use an insulation resistance tester to check the transformer's insulation system. Verify that the insul

Preventive Detection and Testing of Transformers

Preventive Detection and Testing of Transformers

I. DC Resistance Test of Transformer Primary and Secondary Windings:The DC resistance of transformer primary and secondary windings can be measured using the four-wire (Kelvin) method, which is based on principles related to accurate resistance measurement.In the four-wire method, two test leads are connected to both ends of the winding under test, while the other two leads are connected to adjacent winding terminals. An AC power source is then applied to the two leads connected to the adjacent

Source professional electrical partners, experts, and explore smart grid & energy solutions.