Transformers
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A transformer transfers electrical energy from one circuit to another by changing the current in the primary circuit, which creates a magnetic field that induces voltage in the secondary circuit. The first widely used transformer was invented in 1836, and improvements continued through the late 1800s, including the development of the first three-phase transformer in 1889. Modern transformers are used in many electronic devices and come in different types like the autotransformer, polyphase transformer, and instrument transformers. Transformers are classified based on factors like power level, frequency, voltage class, cooling type, application function, and winding turns ratio. They are commonly used to increase voltage for long distance power transmission and to step down voltages for electronic devices.
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X ray generators use a high voltage transformer and rectifier circuit to power an x-ray tube. The transformer steps up the voltage from around 100-200V from the generator to over 100,000V needed by the tube. A filament transformer separately supplies around 10V to heat the tube filament and cause electron emission. Controls select the voltage and exposure time. The transformer and rectifiers are immersed in oil for insulation given the high voltages involved. Rectification converts the AC output to DC to allow current flow in only one direction through the tube.
BEE.pdf
This document discusses transformers, including:
- Their history from Edison's DC power system to Tesla's development of AC power transmission.
- How a transformer works using mutual induction to change the voltage of alternating current between a primary and secondary coil.
- The basic construction of a transformer with an iron core and two insulated coils.
- The main types of transformers including step-up, step-down, auto, poly-phase, leakage, resonant, and instrument transformers.
Transformer
A perfect PPT on Transformer including - Intro. , Defn , Construction , Working , Types , Etc. by Abhay M. Laxane
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GENERATORS
The document summarizes the key components and functions of an x-ray generator. It discusses how transformers are used to change voltage levels for the filament circuit and high voltage circuit. The filament circuit uses a step-down transformer to provide low voltage for heating the x-ray tube filament. The high voltage circuit uses an autotransformer and step-up transformer to provide high voltage of 40,000-150,000 volts for electron acceleration. Rectification is also discussed, which converts the alternating current output of the high voltage transformer to direct current required by the x-ray tube.
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On these Slides I describe History, Introduction, Construction, Working and Principle, Types of Transformer, Ideal Transformer and Uses of Transformer.
"high tension generator", "high tension","tension generator", "generator", ...
1. The document discusses the components of an x-ray generator, including a high tension generator and rectification system. It describes how alternating current is generated and then rectified to produce direct current needed to power the x-ray tube.
2. Key components are the step-up transformer, which increases voltage, the rectifier circuit, which converts AC to DC, and the step-down transformer to provide lower voltage for the filament.
3. The document explains different transformer types like autotransformer and the principles of electromagnetic induction that transformers use to change voltage levels in the x-ray circuit.
Transfomer
Here are the solutions to the transformer problems:
1. A transformer has 100 turns on coil 1 and 200 turns on coil 2.
i. If the voltage on coil 1 is 10 volts, the voltage on coil 2 will be 20 volts (Voltage on coil 2 = Voltage on coil 1 x Turns on coil 2/Turns on coil 1 = 10V x 200/100 = 20V)
ii. If the voltage on coil 1 is 200 volts, the voltage on coil 2 will be 400 volts (Voltage on coil 2 = Voltage on coil 1 x Turns on coil 2/Turns on coil 1 = 200V x 200/100 = 400V)
iii.
Transformers basic electrical engineering
1. A transformer is a device that converts alternating current (AC) of one voltage to another voltage without changing the frequency. It consists of coils wrapped around a common core and uses electromagnetic induction.
2. Nikola Tesla proposed using transformers to increase voltage for efficient power transmission over long distances, then step it back down for safe distribution and use. This system replaced the inefficient direct current system developed by Edison.
3. Transformers allow efficient transmission of power by reducing current and thus transmission losses, while maintaining the same power level. They are essential components for modern power distribution systems.
Transformer
A transformer transfers electrical energy between two circuits through electromagnetic induction. It works by using a primary coil to produce a varying magnetic field that induces a voltage in a secondary coil. This allows transformers to increase or decrease voltage levels in an electrical circuit. The number of turns in each coil and the ratio of their turns determines the relationship between the voltages in the primary and secondary circuits. Transformers are commonly used to increase voltage for power transmission over long distances and decrease voltage for safe use in electronic devices.
Transformer.pptx
The document discusses transformer construction, principles of operation, and testing methods to determine equivalent circuit parameters. It provides an introduction to different types of transformers and their applications. Key points covered include:
- Transformers transfer power from one circuit to another through electromagnetic induction without a direct electrical connection between the circuits.
- Practical transformers have equivalent circuits that account for winding resistances, core losses, and leakage fluxes/inductances not present in an ideal transformer.
- Open circuit and short circuit tests are used to determine the equivalent circuit parameters like magnetizing inductance, core loss resistance, leakage reactances, and winding resistances.
Transformers
A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another, or multiple circuits. A varying current in any one coil of the transformer produces a varying magnetic flux in the transformer's core
X ray generator
An x-ray generator uses a transformer assembly and control panel to supply electric power to the x-ray tube. The transformer assembly contains components like transformers, a rectifier, and capacitors that modify incoming alternating current into high voltage direct current needed by the x-ray tube. It increases the voltage using step-up transformers by factors of 600 or more. The control panel contains components that allow adjusting and monitoring of exposure parameters like kVp and mA, as well as buttons to initiate and terminate x-ray exposures. Modern x-ray generators use advanced rectification and switching circuits to provide stable, ripple-free power for short exposures like in angiography and fluoroscopy.
Transformer
The document summarizes the basics of a transformer. It discusses that a transformer transfers electrical energy from one circuit to another through inductively coupled coils. It consists of a core with two separate coils wound around it. The primary coil receives energy from an AC source which generates a magnetic field and induces a voltage in the secondary coil. The ratio of voltages depends on the turns ratio between the coils. Common transformer types include step-up, step-down, auto and poly-phase transformers. Transformers work on the principle of mutual induction and Faraday's law of induction.
Transformers TR.pptx
Transformers are electrical devices that transfer energy between circuits via changing magnetic fields without moving parts. They work by mutual induction between two coils: the primary winding receives energy which is then induced into the secondary winding. Transformers can increase or decrease voltage and current levels while maintaining frequency and power. Three-phase transformers have primary and secondary windings that can be connected in star or delta configurations to meet different voltage and current requirements.
132 33kv substation
This document provides information about a 132/33 kv sub-station, including a single line diagram and descriptions of its main components. It discusses the transformer, types of transformers, lightning arresters, relays, circuit breakers and their operating principles. The transformer uses electromagnetic induction to transfer energy between coils. Lightning arresters protect equipment from surges, while relays and circuit breakers detect faults and interrupt current flow to protect circuits.
132_33kv_substation.ppt
This document provides information about a 132/33 kv sub-station, including a single line diagram and descriptions of its main components. It discusses the transformer, types of transformers including power, instrumental, and RF transformers. It also describes lightning arresters, types of arresters, relays including induction, thermal, and Buchholz relays. Finally, it discusses circuit breakers and types including oil, air blast, and vacuum circuit breakers.
Semelhante a Transformers (20)
"high tension generator", "high tension","tension generator", "generator", ...
"high tension generator", "high tension","tension generator", "generator", ...
X ray Generator physics behind x ray generation.ppt
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Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
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Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Transformers
- 3. HISTORY
- 6. TYPES of
- 12. Classification
- 14. Applications
- 16. Sources : http://en.wikipedia.org/wiki/Transformer#Applications http://images.search.yahoo.com/search/images?p=resonant+transformer&js=1&ei=utf-8&fr=sfp&xargs=0&pstart=1&b=21&ni=20 http://images.search.yahoo.com/search/images;_