What is a Step Down Transformer?

08/08/2024

What is a  Step Down Transformer?

Step Down Transformer Definition

A step-down transformer is defined as a transformer that converts high voltage (HV) to low voltage (LV) and high current on the secondary side.

61e797dd1b3c473a862993b6cf2176d4.jpeg

Working Principle

The working principle involves transforming electrical energy to magnetic energy in the core and back to electrical energy on the secondary side.

Turns Ratio

The turns ratio (n) is the ratio of primary to secondary voltage, which equals the ratio of turns on the primary side to the secondary side.

Output Voltage Calculation

The output voltage is calculated by multiplying the number of turns on the secondary side by the primary voltage and then dividing by the number of turns on the primary side.

升压变压器插图 (2).jpeg



升压变压器插图 (1).jpeg

Applications

Step-down transformers are used in electronic devices to supply low voltage and in power systems to adapt voltage levels for consumers, reducing transmission losses.

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
08/29/2025
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
Rockwell
08/29/2025
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
Vziman
08/29/2025
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
Rockwell
08/28/2025
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!