High-voltage power transformers are used to transport electric energy over a considerable distance, to reduce technical losses. They work on the principle of transformation, converting the electrical energy of one parameter to another dimension by electromagnetic induction. For this purpose, the electric energy received from the brush device of the generators via the buses is supplied to the transformers for boosting and further transmission.
How to choose the Power Transformer?
Indicators typical for construction, installation of thermal power plants, hydroelectric power stations, nuclear power plants, diesel power plants are: power, reliability of electrical power. For certain categories of consumers of electricity, an important factor is the reliability of power supply. When selecting devices, pay attention to the protection of power lines. A high degree of financial efficiency of Transformer is the design of an optimal network of switchgears: outdoor switchgear, indoor switchgear, and indoor switchgear for electric power transmission.
The costs of the purchase, maintenance of transformers include power conversion devices. The company is developing in the future, conducting reconstruction of production. The requirements for the technical equipment of electric networks of the characteristics of power transformers are changing.
Ensuring uninterrupted power supply of the enterprise is done by installing a second Power Transformer. The first is constantly in work and second is considered reserve. Periodically, one out of two devices is taken out for overhaul, medium, current repair, adjustment, for testing networks, equipment. At the enterprise, two units are installed with the condition of operation of each device with a load factor of 0.7 from the nominal parameter. In the event of failure of one working device from two. One device is constantly switched to standby mode. During operation, there are: malfunctions, problems with protection, malfunctions in the equipment of the switchgear, substation. The working unit becomes 1.4 times under power overload, i.e. the second transformer can be overloaded only by 40%.
This is good to know some important factors about a power transformer and its operating level before buying the one. Voltage varies from one location to another worldwide, so it’s important that you know the power output you need in your locality.
It will be easy to select a transformer based on the load type once you have checked the load size. When you know the nature of the load then picking a transformer will also be very easy for you. Their selection even for industries looks very easy, but you should know the size and complexity of the load. A power transformer is picked before you decide to. It is good to find out the primary current and frequency as well as the secondary voltage and the capacity that is required.
You will assess the individual loads, based on the operational requirements. Try to find out the loads of the generators, too. Once the whole equations have been worked out and calculated, put all the details together to calculate the maximum real-time load. When you have checked the maximum load you can expect, selecting the transformer based on results is simple for you.
Try selecting a system with high voltage and low amperage to minimize the loss due to resistance. One of the methods for calculating the size of a power transformer can be one dependent on the highest load you’ll expect. You have to choose the size of such a device based on the size of generated units that are used.
If you use the three-phase transformer, compared to three distinct phase power machines, it is much simpler, light weight and lightweight. Using a single phase transformer, however, requires a small amount of space and makes the whole device much more robust. It’s also easy to handle, which needs less maintenance. Often, your use of this tool is one of the key factors to consider when choosing this type of machine.
What would be the main consideration while deciding the power transformer?
There are several considerations present, such as main current, secondary voltage, wire length, impedance, indoor or outdoor use and technical specifications etc. and they require consideration before purchasing any power transformer.
Mounted pole / pad, case size, power factor and performance, basic impulse level, space requirement, temperature rise, location, and dry or liquid-filled type are some of the factors that you should test before purchasing a power transformer. If you have sufficient knowledge of all the above listed factors then choosing the best system is quite easy. However, if this is your first time hearing all of these words, then you will need to seek advice from a supplier to pick the right power transformer for your company.