File Name: step up transformer and step down transformer .zip
What is a Step Up Transformer? A step-up transformer is one whose secondary voltage is greater than its primary voltage. This kind of transformer "steps up" the voltage applied to it.
- Difference between Step-up and Step-down transformer
- Step-up & Step-down Transformers
- How to Make a Step-up Transformer?
Difference between Step-up and Step-down transformer
A transformer in which the output secondary voltage is greater than its input primary voltage is called a step-up transformer.
The step-up transformer decreases the output current for keeping the input and output power of the system equal. Considered a step-up transformer shown in the figure below. The number of turns on the secondary of the transformer is greater than that of the primary, i.
Thus the voltage turn ratio of the step-up transformer is The primary winding of the step-up transformer is made up of thick insulated copper wire because the low magnitude current flows through it.
Applications — Step-up transformer is used in transmission lines for transforming the high voltage produced by the alternator. The power loss of the transmission line is directly proportional to the square of the current flows through it.
The output current of the step-up transformer is less, and hence it is used for reducing the power loss. The step-up transformer is also used for starting the electrical motor, in the microwave oven, X-rays machines, etc. A transformer in which the output secondary voltage is less than its input primary voltage is called a step-down transformer. The number of turns on the primary of the transformer is greater than the turn on the secondary of the transformer, i. The step-down transformer is shown in the figure below.
The voltage turn ratio of the step-down transformer is The voltage turn ratio determines the magnitude of voltage transforms from primary to secondary windings of the transformer. Step-down transformer is made up of two or more coil wound on the iron core of the transformer.
It works on the principle of magnetic induction between the coils. The voltage applied to the primary of the coil magnetise the iron core which induces the secondary windings of the transformer. Applications — It is used for electrical isolation, in a power distribution network, for controlling the home appliances, in a doorbell, etc.
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Step-up & Step-down Transformers
One of our fellow member of the EEC sent us this article few days ago. Remember you can do the same and talk about whatever you want, even yourself! Transformers are devices that change transform the voltage of power supplied to meet the individuals needs of power consumers. It uses the principle of electromagnetic induction to change the voltage alternating difference from one value to another whether smaller or greater. A transformer is made of a soft iron coil with two other coils wound around it, but not connected with one another. The iron coils can either be arranged on top of another or be wound on separate limps of the iron core. The coil to which the alternating voltage is supplied is known as primary winding or primary coil while.
How to Make a Step-up Transformer?
Transformers do what their name implies—they transform voltages from one value to another The term voltage is used rather than emf, because transformers have internal resistance. For example, many cell phones, laptops, video games, and power tools and small appliances have a transformer built into their plug-in unit like that in Figure 1 that changes V or V AC into whatever voltage the device uses. Transformers are also used at several points in the power distribution systems, such as illustrated in Figure 2. Power is sent long distances at high voltages, because less current is required for a given amount of power, and this means less line loss, as was discussed previously.
A transformer in which the output secondary voltage is greater than its input primary voltage is called a step-up transformer. The step-up transformer decreases the output current for keeping the input and output power of the system equal. Considered a step-up transformer shown in the figure below.
Equality of voltage and current between the primary and secondary sides of a transformer, however, is not the norm for all transformers. Notice how the secondary voltage is approximately ten times less than the primary voltage 0. What we have here is a device that steps the voltage down by a factor of ten and current up by a factor of ten:.