Showing posts with label electric transformer. Show all posts
Showing posts with label electric transformer. Show all posts

Wednesday, 13 May 2015

Significance Of Power Transformers For Urban Life In India

Manufacturers of power transformers from India are sharing this article to explain the significance of electrical transformers, especially in urban living.

Power transformers are electromagnetic parts that are responsible for offering power supply circuit of a system. They transmit alternate current from one circuit to another via electromagnetic induction. These are essential parts used in varieties of latest applications that run on electricity.

Friday, 20 March 2015

Why Most Service Centers Consider Transformers Oil Purification A Crucial Process?

Transformers are delicate machines that need to be installed in protective environment as dust and other particles can leads to wear and tear of the machine. For keeping the health of transformer, users need to perform transformer oil purification process when required. Why it is important? Here are few reasons that perfectly explain the significance of oil purification:
  • Presence of moisture, solid, and gas contaminants can adversely affect the functionality of electrical insulating fluids as an insulator and coolant. This is why it is always preferable to perform purification process of transformer oil to expel all the contaminants that act like a barrier to high performance.
  • Irregular purification leads to sudden failures and breakdown of a machine part. Your transformer will be in bad situation, even in worse if you do not perform cleaning of transformer oil on regular basis.
When To Clean Transformer Oil? How To Know That There Is A Need Of Treating Transformer Oil?

Transformer oil is an insulating liquid that keep the device/machine in good condition when well-maintained. Low in good condition insulating oils are bad for transformer's health and may cause damage to inner components and the system. You can take help of oil quality parameters and tests to determine the purity level of transformer oil.

Basic quality parameters of insulating oil are- Voltage breakdown, dielectric strength, moisture content, flash point, color visual inspection, interfacial tension, and particles contaminations.

There are few tests that will help you in determining contaminants level of the oil. You can ask for professional assistance for performing cleaning of transformer oil.
 Fig- Showing before and after results of oil purification

The transformer oil purification process offers:
  • Cost savings
  • Valuation of aged oil and its recycling
  • Reduction of oil handling
  • Reduction of transport cost
  • Reduction of oil disposal
  • Removal of products of ageing
The significance of this process can't be neglected anyway. You need to perform this method when your transformer oil gets diluted with contaminants as it will harm its health and affects performance.

Tuesday, 14 June 2011

What is an Electric Transformer?

Electric transformers are used to transform voltage from a higher voltage to a lower voltage. Electric transformers can transform alternating current from one circuit into another through electromagnetic induction. This generally consists of ferromagnetic core and two or more coils called windings. It can either be a single-phase or a three-phase configuration. You have to remember certain specifications when searching for electrical transformers. These include: maximum secondary voltage rating, maximum secondary current rating, maximum power rating and output type. Output choices include AC or DC.
 

Cores can be constructed as either toroidal or laminated. Toroidal cores have numerous advantages like they provide low magnetic leakage, low noise, close flux path and smaller core size/weight and efficiency. A laminated core is made up of sheets of magnetic material insulated from one another by an oxide or varnish. Laminated refers to the laminated steel cores. These steel lamination are insulated with a non conducting material such as varnish, and then formed into a core that reduces electrical losses. There are many types like auto transformer, control, current, distribution, general purpose, instrument, step-up and step-down. Mountings include chassis mount, dish or disk mount, enclosure or free standing, h frame and PCB mount.

The most important use of electric transformer is transferring electricity from power plants to homes and businesses. Electric transformer is usually of high voltage at the power plant. Voltage is little lowered when it reaches the substation. When it reaches a smaller transformer, voltage is reduced again. This is a continuous process, which repeats until the power is at a usable level. You have likely seen the type of electrical transformers that sit on top of electric poles. Most of the electrical transformers contain coils or windings that are wrapped around a core. The power travels through a coil. If there are more coils, voltage is much higher. If there are fewer coils, the voltage is low.
The way electrical transformers work has changed. Transformers have made life easier you can transfer power in a timely, efficient and more economical manner. Many people do not have their houses near a power plant. But it has an added advantage for both homes and businesses because the power plant is nearby then can obtain dependable, affordable electricity. Electricity that is used in homes and business places pass through electrical transformers and reach the end users. There are different types of electrical transformer like power transformers, distribution transformers, furnace transformers, auxiliary transformer and outdoor type transformer.