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Transformer
Gnee Steel (tianjin) Co., Ltd. has own transformer manufacturing base, producing a full range of transformers, including 5000 KVA 35KV distribution transformers, 100 MVA 230KV power transformers, 10 MVA 35KV dry-type transformers, rectifier transformers, electric furnace transformers, solar inverter transformers and other special application transformers. We have obtained ISO9001, ISO14001, OHSAS18001 certifications and KEMA, CESI test reports for large transformers.
What is Transformer
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The transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. If you want to know the specifications and prices of transformer, please contact us!
I hope you can find satisfactory products.
1.20KV Outdoor Cast Resin Dry Type Electrical Transformer
It consists of iron core made of silicon steel plates and epoxy resin cast coils.Insulation cylinder and other insulators between high and low windings are placed to increase electrical insulation. lts cushion blocks can support and restrain the coils, and its fasteners have anti-loose function.
2.High Voltage HT Electric Switchgear Substation Kiosk
Compact transformer (also can be called as Compact Substation, Prefabricated Substation) is suitable for business centers, schools, substations and etc, which can bematched flexibly, transported, installed and maintained easily. Also, it can save the space.
3.Low Voltage LT Draw Out Switchgear Equipment
GCK series low voltage draw out switchgear is applicable for three phase four wire/fivewire AC power system with rated operation voltage 380v, used for electric power receiving and feeding, reactive power compensation, electric energy calculation,lighting and motor centralized control at power plant, substation, mine enterprises, high buildings.
If you want to know about other transformers, please contact us to get the product catalog and price.
1.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. For step-down transformers the number of windings is higher across the primary side than the secondary side. Therefore, the overall winding ratio of primary and secondary always remains more than 1.
In electronics, many applications run on 5V, 6V, 9V, 12V, 24V or in some cases 48V. To convert the single phase power outlet voltage 230V AC to the desired low voltage level, Step Down transformers are required. In instrumentation as well as in many electrical types of equipment, Step-Down transformer is the primary requirement for the Power section. They are also used in power adapters and cell phone charger circuits.
In electrical, step down transformers are used in electrical distribution system which works on very high voltage to ensure low loss and cost-effective solution for long distance power delivery requirements. To convert the high voltage to a low voltage supply line, Step down transformer is used.
2.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. For the Step Up transformer, the ratio of the primary winding and the Secondary winding remains less than 1. That means the number turns in secondary winding is higher than the primary winding.
In electronics, step up transformers often used in stabilizers, inverters etc where low voltage is converted to a much higher voltage.
A step-up transformer is also used in Electrical power distribution. High voltage is required for power distribution related application. Step up transformer is used in the grid to step up the voltage level before the distribution.
3.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. This is because the primary and the secondary winding ratio is always equal to the 1. That means the number of turns in primary and secondary winding is same in isolation transformer.
The isolation transformer is used to isolate the primary and secondary. As discussed previously, the transformer does not have any electrical connections between primary and secondary, it is also used as an isolation barrier where the conduction happens only with the magnetic flux. It is used for safety purpose and to cancel noise transfer from primary to secondary or vice-versa.
4.Iron Core Transformer
Iron core transformer uses multiple soft iron plates as the core material. Due to the excellent magnetic properties of iron, the flux linkage of the iron core transformer is very high. Thus, the efficiency of the iron core transformer is also high.
The soft iron core plates can be available in multiple shapes and sizes. The coils of the primary and secondary wound or wrapped on a coil former. After that, the coil former is mounted in soft iron core plates. Depending on the core size and shapes, a different type of core plates is available in the market. Few common shapes are E, I, U, L, etc. The iron plates are thin, and multiple plates are bunched together to form the actual core. For example, E type cores are made with thin plates with a look of letter E. Iron core transformers are widely used and usually heavier in weight and shape.
5.Ferrite Core Transformer
A ferrite core transformer uses a ferrite core due to high magnetic permeability. This type of transformer offers very low losses in the high-frequency application. Due to this, ferrite core transformers are used in high-frequency application such as in switch mode power supply (SMPS), RF related applications, etc.
Ferrite core transformers also offer a different type of shapes, sizes depending on the application requirement. It is mainly used in electronics rather than electrical application. The most common shape in the ferrite core transformer is E core.
6.Toroidal Core Transformer
Toroidal core transformer uses toroid shaped core material, such as iron core or ferrite core. Toroids are ring or donut shaped core material and widely used for superior electrical performance. Due to the ring shape, the leakage inductance is very low and offers very high inductance and Q factors. The windings are relatively short and weight is much less than traditional, same rating transformers.
Industry power supply, metallurgy industry, power substation
Define Your Load Characteristics
The first step in selecting a transformer is to define your load characteristics, such as the power rating, the voltage level, the frequency, the power factor, the harmonic content, and the load variation. These parameters will determine the size, the type, and the insulation class of the transformer that you need. For example, if you have a high-power load that operates at a low voltage, you will need a step-down transformer that can handle the high current and the low power factor. If you have a load that generates harmonics, you will need a transformer that can withstand the additional losses and heating effects.
Choose Your Transformer Type
The next step is to choose your transformer type, based on the application, the location, and the performance requirements. There are two main types of transformers: dry-type and liquid-filled. Dry-type transformers use air or gas as the cooling and insulating medium, while liquid-filled transformers use oil or synthetic fluids. Dry-type transformers are more suitable for indoor or urban installations, as they are safer, cleaner, and more compact. Liquid-filled transformers are more suitable for outdoor or rural installations, as they offer better cooling, higher efficiency, and longer life span.
Evaluate Your System Configuration
The third step is to evaluate your system configuration, such as the number and the arrangement of the transformers, the type and the length of the conductors, the presence and the location of the protective devices, and the grounding method. These factors will affect the voltage regulation, the short-circuit capability, the fault current level, and the reliability of your power system. For example, if you have a radial system with a single transformer, you will need a transformer that can provide adequate voltage regulation and fault current. If you have a parallel system with multiple transformers, you will need transformers that are identical and coordinated.
Consider Your Environmental Conditions
The fourth step is to consider your environmental conditions, such as the ambient temperature, the humidity, the altitude, the pollution, and the noise level. These factors will influence the cooling, the insulation, the corrosion, and the noise performance of your transformer. For example, if you have a high ambient temperature, you will need a transformer that can operate at a higher temperature rise and has a higher insulation class. If you have a high humidity, you will need a transformer that has a sealed or a nitrogen-filled tank to prevent moisture ingress.
Compare Your Maintenance Requirements
The fifth step is to compare your maintenance requirements, such as the frequency, the duration, the cost, and the availability of the maintenance services. These factors will affect the reliability, the availability, and the life cycle cost of your transformer. For example, if you have a low maintenance budget, you will need a transformer that has a low failure rate and a long service life. If you have a high maintenance availability, you will need a transformer that has easy access and replaceable parts.
Analyze Your Cost-Effectiveness
The final step is to analyze your cost-effectiveness, which is the balance between the initial investment, the operating expenses, and the benefits of your transformer. These factors will depend on the price, the efficiency, the losses, the depreciation, and the revenue of your transformer. For example, if you have a high initial investment, you will need a transformer that has a high efficiency and a low loss. If you have a high revenue potential, you will need a transformer that has a high availability and a low downtime.
Our Factory
With the expansion of production scale and the increase of product varieties, it has now developed into a high-tech innovative enterprise that annual production capacity of more than 1000MVA, integrating the design, production and sales of open-type dry-type transformers, epoxy resin cast dry-type transformers, amorphous alloy transformers, and special transformers.
We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, we aim to be your most reliable supplier as well as your best partner in business!
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional transformer manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to wholesale cheap transformer in stock here and get free sample from our factory. Also, customized service is available.
