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Pros and Cons of Electrical Transformer

Posted on the 17 November 2022 by Electpower

There are many different applications for transformers in electrical distribution systems and circuits. An electrical transformer distributes, transmits, and controls electrical energy within a circuit or piece of equipment. Transformers come in a variety of different types that can be used for a variety of different purposes. When compared with other electrical components, there are many advantages and disadvantages of transformers.

There are both advantages and disadvantages of transformers in electrical systems and networks. So let’s first look at what are the benefits of transformers.

Pros of Electrical Transformers

A transformer has a number of advantages that make it ideal for electrical distribution systems and circuits, including being simple to operate and durable.

Transformers are advantageous in electrical circuits and systems for the following reasons:

Simple Working Principle

A transformer’s working principle is simple to understand. They essentially consist of a winding, two windings, or more windings with different numbers of turns around a magnetic core. Step-up and step-down transformers are made possible by varying the number of turns across one winding. The transformer is one of the easiest electrical components to understand.

Step up or Step down Voltage

In electrical distribution systems, transformers are extremely important because they can step down high voltage levels at substations so voltage can be supplied to houses at a safe level. Transformers make it very easy to operate different components of a circuit with varying voltage levels.

The cost of transformers is relatively low

Voltage transmission, distribution, and electrical isolation are all carried out by transformers, which are relatively inexpensive components. Small transformers integrated into electrical circuits are low-cost components. However, transformers that are larger and used for electrical distribution are more expensive. This is the biggest pro of electrical transformers.

Multiply electrical tapping points

Different voltage levels can be drawn from multiple tapping points on some transformers. A circuit that includes components that operate at different voltage levels can benefit from this. Electrical tapping points are typically based on the incoming supply voltage or the primary winding voltage. Hence it is possible to adjust the voltage level for other components on a 230V primary winding by tapping points of 220V, 210V, and 100V.

Possible to Connect In Reverse

It is possible to use some transformers in two different ways. Some transformers can be reverse-connected, so they can be used as step-down or step-up transformers. You can always verify this information by asking the electrical transformer or, in some cases, by reviewing the supporting documentation.

There are no moving parts in Transformers

Electromagnetic induction transfers energy across the windings of transformers without any moving mechanical parts. Generally in machinery or electrical circuits, transformers typically feature no moving parts that can wear out over time and require little maintenance.

Efficient Components

A transformer is an energy-efficient electrical device around 97% of the time. It is high for an electrical component because there is often a variety of energy losses, including heat, sound, and vibration.

Transformers Are Crucial for Distribution Systems

Electrical distribution systems rely heavily on transformers. They are highly efficient electronic devices that transmit electrical power over long distances by boosting voltage. Increasing the power allows long distances to be covered with low losses. In our homes, offices, and places of work, the power can be stepped down once it arrives at the distribution side.

Multiple Applications

There is a wide range of applications for transformers.  A transformer supplies power to components, controls circuits, distributes electricity, and supplies power and current.

Electrical Isolation

A transformer transfers energy across its windings using electromagnetic induction. Additionally, a transformer has no physical electrical connections between its windings. This isolates its circuits electrically.

Electrical Transformer Cons

In electrical circuits and systems, transformers also have certain drawbacks and disadvantages. So let’s discuss some of the disadvantages transformers have.

Old Technology

There are many electrical machines and networks that use transformers. They still follow the old way of working. However future networks will require more intelligent transformers.

Bulky and Take Up a Lot of Space

In electrical panels and machinery, transformers tend to be quite large and bulky. Generally, they take up quite a bit of space.

Some Transformers Require Regular Maintenance

In addition, larger transformers require frequent maintenance due to their surroundings. Transformers can fail if exposed to water, oil, or dust. A good preventative maintenance program can extend the lifetime of a transformer. Contact your electrical transformer manufacturer to know more.

Used With AC Voltage Only

Transformers are unable to pass DC. As a result, they support systems with AC voltage only. This is one of the major electrical transformer cons.

Final Word

In most electrical networks and equipment, transformers play an extremely important role despite their drawbacks. Transformers are essential to everyday tasks such as charging your cell phone and laptop. It is evident that the pros of electrical transformers outweigh the few electrical transformer cons. Electrical distribution systems will certainly continue to use transformers for many years to come.

Electric Power Inc. is a manufacturer of transformers with custom and standard designs. We build dry-type transformers which are up to 500kVA in voltages and belong to the 600V class. We are one of the foremost electrical transformer manufacturers in Mississauga, ON, Canada.


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