Top Seven Tips for Transformer Designs in the Industrial Buildings

Transformer Designs

Actual and good knowledge for the beneficial designs of transformers is very important for the operations in any type of industry.

A transformer is a special electrical device, which is designed to convert the alternative type of current from one voltage to the other one. It is also used to “step up” or: step down” voltages and also works on the principle of magnetic induction. It is basically a static and simple electro-magnetic passive electrical device.

There are three types of voltage transformers, like, electromagnetic, capacitor and optical. Many transformer manufacturers are good in developing all these types of transformers.

As the world of business focuses around reliability and error free efficiency electrical devices must follow some qualities. The design of any type of electrical distribution starts with the transformers. Many challenges can have to be faced regarding the designs of the transformers.

Here are seven ideas that can win the common hurdles regarding the designing process that can give the best result:

Transformer Designs

Understanding The Types of Transformers

Have a clear view of the proper transformer type is the first and very crucial step in the design process of a transformer. Many manufacturers of transformers give proper emphasis in this subject. Many factors have to be considered while choosing a transformer for an office according to the cost and system configuration of a transformer. The industrial transformers can be of two types, dry-type and liquid-filled. Generally dry types are used for smaller indoors, whereas, the liquid-filled ones are used for larger applications.

The dry-type transformers are of three categories, like, vacuum pressure impregnated, vacuum pressure encapsulated and cost coil. Many dry type transformers manufacturers & exporters are good in creating all these three types of dry type transformers.

 The first one is the most affordable one within the three and also best for installing in electrical rooms, which are of dry environment. Cast coil ones are the most expensive ones and good for harsher conditions for their sealed core-and-coil structure. The last one comes between the first two transformers both in price and environmental preferences.

beneficial designs of transformers

Although the dry type transformers have many advantages of being installed indoors, one most notable disadvantage of these types is the need to design ventilation systems sized for the heat rejection of the transformers and methods for future replacement. On the other hand, the liquid filled ones use some different types of liquid substances for the purpose of cooling.

1. Knowing about the codes

In order to properly install a transformer the working person must possess a good understanding of the governing codes. In addition with the national and international requirements of codes, the insurance provider of the owners’ property may have some specific requirements as well for the installation of the transformers.

2. Size optimization

For both new and replacement installations proper transformer is essential for any industry. This can result in savings in both initial expense and also the cost of operation as well. The efficiency of a transformer can be calculated by the ratio of the power of input and output. In addition with the efficiency big transformers carry no-load losses that can reduce its efficiency. The three best ways of optimizing the sizing of a transformer are, specifying a cooling package, developing detailed load calculations and taking the advantage of NEC- allowed metering the purpose of replacement.

A transformer cooling package can increase the power and efficiency of a dry type transformer up to 133% of the base rating and on the other hand, can also increase the efficiency of a liquid-type transformer as well.

types of voltage transformers

Considering and Reviewing the Utility Needs

Industrial areas naturally have a dedicated electrical assistance from the nearby local utility and can easily house the equipment of electrical distribution for campus micro grids.

The utility needs for the installation of a transformer include:

  • Metering the current location and specifications of a transformer.
  • Protective device requirements while giving emphasis on redundant relaying.
  • Configuration of transformers including wye and delta primary.
  • The methods including resistance and reactance grounding.

3. Considering the grounding of high-resistance

In many cases the industrial buildings contains process equipment that is very important and of value to the owner while in a critical operation within the campus. Therefore good measures have to be taken in the designing process of those buildings to make sure the operations which are reliable. An electrical problem can halt the entire working process of any industry for some hours to some days. It takes some time to repair depending on the nature of the damage. The majority of problems in an electrical device are line-to-ground faults, which can be operated through a high-resistance grounded secondary for the building of the transformer. Many points are taken into consideration when a HRG transformer is introduced, including system rating, single-phase-loads, owner operations etc. A ground fault happens when a single phase is connected to the ground. In the high-resistance grounded system the other two phase -to-ground voltages increases to the phase to phase voltage with an increase of 173%.

4. Planning for installation and future replacement

Transformers used for services can be found in an industrial building are mainly large in size. Designing a special room to meet all code clearance is needed. Designing rigging paths lifting options for replacement of equipment is very important. The actual life span of a transformer is considered as 30 to 40 years. Transformer manufacturers must keep these factors in mind as replacement is needed at some point during the life of the device.

5. Protection of the investment

The electrical system and equipment is an asset of a building, thus the company. Therefore those require diligent attention and powerful and beneficial design to operate successfully. The responsibility of an engineer is to offer a design that can easily protect the investment of the client and also the project.

In a nutshell a number of factors are needed in the design and implementation of the perfect service of the transformers in the industrial areas and following the above mentioned tips can make that a successful idea.

Author Biography

Mr. Ravi Mahajan is the MD of Muskaan Power Infrastructure Limited. He is originally from Ludhiana, Punjab and it is his deep connection with his roots that has inspired him to venture into the industry through which he can bring great changes for the common people of the country. With a strong educational background in electrical and electronics field, Mr. Mahajan has enabled Muskaan Power Infrastructure Limited to produce the best electrical equipments with cutting edge technology. It is the sheer will power and technical knowledge of Mr. Mahajan that has enabled him to make Muskaan Power grow and thrive at its best.

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