Main Transformer
Your Professional Main Transformer Supplier
The company has a professional production and research and development base in hebei province. The total factory area is 100,000 square meters, and the transportation is very convenient. It has strong technical research and development capabilities and has won 56 national patents. Our product include dry type transformer / oil immersed type transformer / cubicle-type substation / high and low voltage switch cabinet / ring main unit / ring box / low voltage distribution box / instrument / capacitance, reactance, instrument transformer / schneider licensing series.
Why Choose Us
Quality Assurance
The company strictly implements standards such as ISO9001 international quality management system, ISO14001 environmental management system and OHSAS18001 occupational health and safety management system, and has established a perfect management system.
OEM/ODM Solutions
When you share your requirements, our engineers will deliver customized solutions that are both faster and more efficient, tailored specifically to your needs.
Production Equipment
The company's products have complete qualifications and are equipped with advanced production and testing equipment such as CNC turret punch press, CNC shearing machine, CNC bending machine, laser cutting machine, fully automatic copper bar processing machine, fully automatic transformer test bench, pouring and drying.
Production Market
The company focuses on the Russian and Middle Eastern markets as well as Southeast Asia, and is currently completing cooperation with companies in Italy and Uzbekistan.
High efficiency: High operating efficiency, low heat loss, can effectively save energy, and minimize energy loss during transmission.
Safety: Using new materials and processes, with high shock resistance and heat resistance, can effectively avoid the occurrence of safety accidents.
Reliability: Simple structure, easy maintenance, low maintenance cost, higher reliability and stronger economy than traditional transformers.
Space saving: Small size and volume, small footprint, can be widely used in buildings, rail transit, automobiles and communications and other fields with high space requirements.
High power density: Due to its small component size and excellent temperature dissipation characteristics, it can be tightly packaged with related semiconductor devices and inductors Together, high power density is achieved, and the current density can reach 30A/module;
Low cost: It is composed of a small number of related cheap components, easy to assemble, and low cost.
Improve the cost of connecting components: Sall leakage inductance, low switching loss, and reduced stress on the connected components, so the components connected to it can use low-cost low-power rated components.
Specification
|
Parameter |
Value |
|
Voltage Class |
110 kV |
|
Capacity Range |
10,000 – 63,000 kVA |
|
Frequency |
50Hz / 60Hz |
|
Cooling Method |
ONAN / ONAF |
|
Insulation Class |
Class A / Class F |
|
Vector Group |
Dyn11 / YNd1 / Customized |
|
Tap Changer |
On-load or Off-load |
|
Standards |
IEC 60076 / ANSI / GB |
Types Of Main Transformer
Step-Down Transformer
Step down Transformer is used in both Electronics and Electrical domain. A step-down transformer converts the primary voltage level to a lower voltage across the secondary output. This is achieved by the ratio of primary and secondary windings.
Step-Up Transformer
Step Up transformer is exactly opposite of the step-down transformer. Step up transformer increase the low primary voltage to a high secondary voltage. Again it is achieved by the ratio of primary and secondary winding ratio.
Isolation Transformer
Isolation transformer does not convert any voltage levels. The Primary voltage and the secondary voltage of an isolation transformer always remain the same.
How Main Transformer Work
Power input: The operation begins when an alternating current flows into the primary winding of the transformer, creating a magnetic field around it.
Magnetic flux generation: As the alternating current continues to flow through the primary winding, it strengthens the magnetic field, generating a magnetic field that permeates the transformer's core. This magnetic flux is pivotal as it is the medium through which energy is transferred within the transformer.
Flux linkage: The magnetic field generated in the primary winding extends to the secondary winding. This crucial process links the primary and secondary windings via the core's magnetic flux without direct electrical contact.
Induction of voltage: According to Faraday’s Law of Electromagnetic Induction, any change in the magnetic environment of a coil (like the secondary winding of a transformer) will induce a voltage in the coil. As the magnetic flux through the secondary winding changes with the alternating nature of the input current, a voltage is induced across the secondary winding.
Power output: The voltage induced in the secondary winding causes an alternating current to flow in the secondary circuit. This current is at a new voltage level, transformed up or down depending on the design of the transformer (specifically the ratio of turns in the primary to the secondary winding).
Core
The core is usually made of laminated steel sheets. Its primary purpose is to provide a low-reluctance path for the magnetic flux generated by the transformer's primary winding. The core material is chosen for its magnetic properties, such as high permeability and low hysteresis loss.
Winding
Transformers have two sets of windings: the primary winding and the secondary winding. These windings are typically made of copper or aluminum wire. The choice between copper and aluminum depends on factors like cost, weight, and electrical conductivity.
Insulation
Various insulating materials are used to separate the windings and to insulate them from the core. Common insulation materials include paper, oil-impregnated paper, or synthetic materials like Mylar.
Tank
The transformer is enclosed in a tank, usually made of steel, to contain the core, windings, and insulating materials. The tank may also contain oil or other cooling fluids.
Cooling System
Many transformers use oil or other dielectric fluids for cooling. Radiators, fans, or heat exchangers may be used to dissipate heat from the transformer.
Bushings
Bushings are insulating devices that provide electrical connections to the transformer windings from the outside. They are typically made of porcelain or other insulating materials.
Tap Changer
Some transformers have tap changers that allow the number of turns on the winding to be adjusted. These can be used to regulate the voltage output of the transformer.
Common Applications Of Main Transformer
Voltage Transformation: Transformers are primarily used to step up or step down voltages in AC circuits. Step-up transformers increase voltage for transmission over long distances, while step-down transformers reduce voltage for distribution to end-users.
Power Distribution: In power distribution systems, transformers are used to reduce high transmission voltages to lower values suitable for consumer use.
Electrical Isolation: Isolation Transformers provide electrical isolation between the input and output circuits, which is crucial for safety and preventing ground loops.
Impedance Matching: Transformers are used to match the impedance between different parts of a circuit, ensuring maximum power transfer.
Signal Coupling: In audio amplifiers and telecommunications systems, transformers are used for coupling signals between different stages of a circuit while providing electrical isolation.
Voltage Regulation: Auto-transformers can be used to regulate voltage by adjusting the tapping point on the winding.
Lead time
|
Quantity (pieces) |
1 - 50000 |
> 50000 |
|
Lead time (days) |
30 |
To be negotiated |