What Are Step Up Transformers Used for?

This is indeed a very useful device. With it, we can easily multiply or divide the voltage and current in an AC circuit. In fact, transformers make it possible to transmit electricity over long distances because the AC voltage can be "stepped up" and the current "stepped down" in order to reduce the resistive power losses along the power line connecting the power station to the load. At either end (generator and load), the voltage level is reduced by a transformer for safer operation and cheaper equipment.

Step up transformers definition

A transformer where the output (secondary) voltage is greater than the input (primary) voltage is called a step-up transformer. A step-up transformer reduces the output current to keep the input and output power of the system equal.

 Difference Between Step-up And Step-down Transformer

Transformers that increase the voltage from the primary to the secondary (more turns in the secondary winding than in the primary winding) are called step-up transformers.

Step-up transformers have a lower output current and are therefore used to reduce power losses. Step-up transformers are also used to start electric motors, microwave ovens, X-ray machines, etc. Step-down transformers have a voltage turns ratio of 2:1. The voltage to turns ratio determines the magnitude of the voltage transformation from the primary to the secondary winding of the transformer.

What does a step down transformer do?

Transformers, where the output (secondary) voltage is less than its input (primary) voltage, are called step-down transformers. The number of turns in the primary transformer is greater than the number of turns in the secondary transformer, i.e. T 2 < T 1. Applications - It is used for electrical isolation, power distribution networks, control of household appliances, doorbells, etc.

SG (B) 10 series of non-encapsulated H-class dry-type power transformers adopt the special process technology of German (MORA) dry-type transformers to ensure that the products fully meet the requirements such as fire prevention, waterproof, environmental protection. It is the ideal product for distribution systems and is widely used in the subway, shipbuilding, mining, chemical, power companies, and personnel-intensive buildings as well as other special requirements of the occasion for safety.

H-Class Dry-Type Power Transformer   

The practical significance of step-up and step-down transformers

When you recall that power is equal to the voltage multiplied by current and realize that transformers cannot produce power, they can only convert it, the fact that voltage and current "step" in opposite directions (one up, the other down) makes perfect sense. Any device that produces more power than it absorbs violates the law of conservation of energy in physics, i.e. energy cannot be created or lost, it can only be transformed. The efficiency of the power transfer from the primary to the secondary of the device is very good.

The practical significance of this becomes even more apparent when considering alternatives: before the advent of efficient transformers, voltage/current level conversion could only be achieved through the use of motor/generator sets.

In such a machine, the motor was mechanically coupled to the generator, which was designed to produce the required levels of voltage and current at the speed of the motor. Although both motors and generators are quite efficient devices, using both in this way exacerbates their inefficiency, so that the overall efficiency is in the 90% or lower range. 

In addition, since motor/generator sets obviously require moving parts, mechanical wear and balance are factors that affect service life and performance. On the other hand, transformers are able to convert AC voltage and current levels with very high efficiency, without the need for moving parts, making possible the widespread distribution and use of electricity that we take for granted.

Oil Immersed Transformer

In fairness, it should be noted that motor/generator sets are not necessarily obsolete by transformers for all applications. Although transformers are clearly superior to motor/generator sets in terms of AC voltage and current level conversion, they cannot convert one frequency of the AC supply to another, or (alone) convert DC to AC and vice versa. Electric motor/generator sets can do all of these things relatively simple, despite the limitations of efficiency and mechanical factors already described.

The motor/generator set also has the unique property of kinetic energy storage: i.e. if the power supply to the motor is temporarily interrupted for any reason, its angular momentum (the inertia of the rotating mass) will keep the generator rotating for a short period of time, thus isolating any load supplied by the generator from a 'fault' in the main power system.

Zhongyi Electrical material as an experienced transformer manufacturer has the following advantages

1. Products are widely used in different industries, involving power plants, chemicals, construction, mining, metallurgy, rail transportation, and so on, best meeting the needs of various users.

2. The company has complete testing equipment, and all products have undergone strict factory testing to ensure that the performance indicators of the products meet the relevant national and international standards.

If you want to get more information about the best transformer for sale, welcome to contact us today or request a quote.