Showing posts with label distribution transformers India. Show all posts
Showing posts with label distribution transformers India. Show all posts

Sunday, 2 October 2016

How manufacturers of distribution transformers India protect their equipments?

Transformers are expensive products that need to be protected. Manufacturers of distribution transformers India need to provide proper maintenance care to the transformers and The power transformer protection is realized with two distinct types of devices, one is the measuring device that measures the electrical quantities that affect the transformer through instrument transformers. Other is the device that indicates the status of the physical quantities.

We will discuss top protection devices used by manufacturing units for transformers.
         Buchholz (Gas) Relay
         Oil level Monitor Device
         Pressure Relay
         Winding Thermometer

Buchholz (Gas) Relay – This equipment is a mechanical fault detector used by manufacturers to determine electrical faults in oil-filled transformers. The Buchholz (gas) relay is placed within the pipe between the main tank and the oil conservator in transformer. The conservator pipe has to be inclined slightly for reliable operation.

This equipment normally has a pivoted float and a pivoted vane. Both the float and the vane carry different mercury switches. The casing is filled with oil and the switches are open.



Pressure Relay:

Most power transformers with an on-tank-type tap changer are equipped with a separate tap changer oil compartment for pressure protection. This protection determines a sudden rate-of-increase of pressure inside the oil enclosure of the tap changer.

When the pressure in front of the piston increases the spring counter force, the piston will move and operate the switching contacts.

Frangible disk is the simplest form of pressure relief device used by manufacturers. The surge of oil caused by a severe internal fault bursts the disk and lets the oil to release rapidly. Relieving and bounding the pressure rise help prevent explosive rupture of the tank and fire.

Oil level monitor device:

Transformers that are equipped with oil conservator expansion tank are having an oil level monitor. This monitor has two contacts for alarm.

Winding Thermometer:

It responds to both the top-oil temperature and load current heating effect. It creates an image of the hottest part of the winding. The top-oil temperature is measured with a same method i.e. oil level monitoring device.

These are the devices used by manufacturers of distribution transformers India to protect their transformers. Experts are already using these devices to provide protected transformer equipment's to their clients. If you want any, ask experts today.

Share your thoughts for this post in comments. 

Tuesday, 17 September 2013

Different Aspects Of Distribution Transformer And Power Transformer

The consumption of electricity has augmented manifold in one's daily life. Most  of the household appliances these days work on electricity. It meets every needs and is used while cooking, heating, cooling, light, sound, refrigeration, entertainment and computation. Electricity has in fact become a basic necessity. One cannot imagine life without electricity these days. But often one faces power troubles due to voltage fluctuations. Many a times home appliances break down due to the voltage problem making it  difficult to run the devices safely and efficiently. The way out to solve such problems is through a transformer. A transformer is the right solution to rectify voltage fluctuations.

Importance of distribution transformer and power transformer in their own respective
Distribution transformers in India are a vital equipment that enables the release of electricity with high degrees of capillarity. Owing to this, each of the conductors of the distribution networks becomes a mode of passing into the transformer voltage surges, particularly those that are yielded by lightning. It is used in every sector of the economy from commercial, industrial to residential. A distribution transformer is categorized on the basis of the type of insulation, voltage level and number of phases.

Power transformers are one of the most common transformer types utilized for converting main voltage into low voltage and/or vice versa resting on the need. This type of transformer is also known as step-up or a step-down transformer depending on its functionality. Its chief functionality is making use of electricity devoid of the risk of devastating the internal circuitry of any device due to high voltage flow. The term power transformer itself explains the very reason of the equipment for use of both power distribution as well as management. A power transformer is utilized for transmitting power from higher voltages to lower voltages.


(For More Resource :- How To Make Modern Approach To Resolve Issues Of Transformers Oil Filtration

Different aspects of power transformer and distribution transformer

  • Distribution transformer is utilized for distributing electrical energy at a low voltage lesser than 33KV for industrial purposes and 440-220v for domestic purposes. The power transformer is utilized for transmission purposes at heavy load, higher voltage above 33KV and with 100% efficiency.
  • Distribution transformers are designed for utmost efficiency at 60-70% load and does not normally operate at full load every time. The load of a distribution transformer rests on distribution demand. On  the other hand, power transformers are designed for utmost effectiveness at 100% load. This type of transformer always works at 100% load owing to the fact that it is adjacent to generating stations.
  • Distribution transformer is a part of the distribution system whereas a power transformer is an integral part of the transmission system.
  • Distribution transformers are always online hence operated at a load lesser than full load mostly. As a result, it is created in such as way that the core loss is minimal. While a power transformer typically is operated at a full load. Owing to this, it is designed in such a way that the copper loss is minimal. The flux density in a power transformer is higher compared to a distribution transformer.

Although, these two transformers share differences but they have their own individual importance. Both  play a vital part to keep voltage fluctuations at bay.

About the Author :
Through this content, Reeyankee Das Choudhury has highlighted on the differences between Distribution Transformers and Power Transformers as well the role of both in fighting voltage fluctuations in their respective ways.