Before investing in a power transformer, it is advisable to get acquainted thoroughly with these devices before asking for price information and buying one. Transformer is the most component of power transmission and after installation, its life could range from two to three decades. Thus it becomes imperative to make a smart and knowledge-based choice. The leading distribution transformer manufacturer in India, Rajasthan Powergen providing tips to consider before going for a power transformer.
There are a few minimum points about transformers that every transformer distribution manufacturer must know about. First and foremost is the voltage aspect. Based on voltage there are three ratings in which transformers are available in market, namely high voltage, medium voltage, and low voltage. Below is a paragraph explaining each of the following.
High voltage transformers
The voltage in high voltage transformer involves voltages which are used in power transmission applications and not directly used by end users. High voltage transformers handle electrical energy in the range of 230,000 to 35,000 volts. These voltages have to be transmitted across long distances, therefore a high voltage transformer has different core geometry, winding methods, and insulation methods as compared to low voltage transformers.
Step up transformers can increase the primary voltage to transmission-level voltage and also can be used to step-down voltages, based on their locationin the transmission chain. Uses of high voltage transformers include electrical isolation, instrumentation and power distribution and control. This transformer can be easily adjusted from single phase to three phase.
Medium voltage transformers
This type of Transformers are usually used in the local distribution sector of the power delivery system. They range from 35,000 volts to 2,400 volts. They are used to transport power from local distribution circuits to end users. When the end user is the residential customer, the output voltage can low as 120 volts and for industrial customers, it can be 5,000 volts. This transformer serves as a link between the end user to the utility provider.
These transformers are mostly seen above utility poles and as green boxes with tamperproof enclosures for connections located in shopping malls, residential subdivisions, schools and mobile home parks, in newer residential developments they can even be seen along sitting curb-side in front of the users home. These are usually liquid filled and are the largest of the three sizes.
Low voltage transformers
A low voltage transformer is also known as a magnetic low transformer and is used at the user end of the energy spectrum. A low voltage transformer is a distribution transformer with primary and secondary windings designed to operate at system voltages in the low voltage classes. Electronic low voltage transformers convert 120 volts into 12 volts or 24 volts. A DC low voltage transformer uses a rectifier to convert its output to direct current (DC) and to lessen radio frequency interference (RFI). Low Voltage transformers have a variety of mounting configurations and are small in size.
Hence, a distribution transformer manufacturer based on the capacity should acquire a medium or low voltage transformer. The exact rating, expressed in terms of kVA, will depend on the energy requirement. It is important that you choose vendors who can provide customize the transformer according to your needs and those that are environmentally sustainable and conform strictly to DOE standards. Buy premium quality transformers for all your needs from the leading distribution transformer manufacturer in India, Rajasthan Powergen.
