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The transformer in the least complex manner can be depicted as a thing that means up or ventures down voltage. It is fundamentally a voltage control gadget that is utilized broadly in the conveyance and transmission of rotating flow power.
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Russell Herman
Wiki User
∙ 14y agoBecause a transformer is basically a set of coils which transform between electrical and magnetic energy:
- the primary coil generates a magnetic field based on its input voltage. This can be a static field, when direct current is used, or an alternating field, when alternating current is used.
- the secondary coil generates a voltage based on an alternating magnetic field. This is the same principle used in a power generator (dynamo): a rotating permanent magnet generates an alternating magnetic field (magnetic flux), which triggers an electric voltage (and thus, electric power) in an adjacent coil.
When using direct current, the output of a transformer (on the secondary coil) will be zero, because the secondary coil is isolated from the primary coil, and the static field from the primary does not produce any electric power in a coil. You can demonstrate this by switching the DC on and off: the actual switching of the DC voltage will generate a changing magnetic field, and thus an electric voltage in the secondary coil.
Wiki User
∙ 12y agoA transformer is a device that operates by a change in the magnetic field in the core. The primary winding induces that magnetic field, and the core transfers it to the secondary winding. When the CHANGE of the magnetic field is at it's maximum (such as crossing the zero thresh-hold), the secondary is at it's peak voltage, either positive or negative. If there is no change in the primary, the secondary is at zero. A transformer will not operate will not operate on DC voltage/current because there is no change in the magnetic field.
Wiki User
∙ 11y agobecause of the gravity of the earth that rotates around the sun, located in the biggest blackhole.
Wiki User
∙ 16y agoBecause transformer will saturate by apply Direct Voltage, this is due to infinite Volt-Secondes applied to transformer
Wiki User
∙ 14y agoYou can use Transformers to step-up and step-down the voltage. This makes it easier transmit power over distances.
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Why you say AC as alternating current not alternating voltage?
Because its the current that is alternatingAnother AnswerThere's absolutely nothing wrong with using the term 'alternating voltage', if you are describing voltage rather than current. However, In engineering terminology, the abbreviationa.c.is considered to be anadjective. So, it is also quite normal to talk about an 'a.c. voltage', in just the same way as we describe an 'a.c. system', or an 'a.c. motor', etc.
What are the advantages of instrument transformer?
'Instrument transformer' is the collective name for current transformers (CTs) and voltage (or 'potential') transformers (VTs/PTs). These transformers have two functions:to reduce the current or voltage in a high-voltage primary circuit to values that may be measured using regular ammeters or voltmeters ('burdens'), or to provide the current or voltage inputs to protection relays.to electrically-isolate their secondary burdens from the high-voltage primary circuit for the purpose of safety.
What is the consequence of using DC as input in a transformer?
Basically, Transformers use magnetic energy to transmit a signal (voltage or current) from its primary to secondary. So there needs to be a magnetic flux associated with it. As we know, alternating current produces a variable flux and it causes an emf change in the secondary winding. But direct currents produce a constant magnetic flux which does not help to build up emf in the secondary. Another disadvantage is that there would be no self induced emf in the primary which opposes the changing current (in case of alternating currents) according to Lenz's law. So, the primary winding may burn out due to heavy constant current and its low input resistance.
What is the role of split rings in electric motors?
Split rings keep the current flowing in the same direction or the motor turning in the same direction when using alternating current which reverses direction in its cycle..
What is different between alternating current and direct current?
Direct current is constant - always in the same direction. Alternating current regularly changes direction; for example, in household current, 50 or 60 times (that is, full cycles) in every second.See the Related Link below for more information about the difference between alternating current and direct current.
How are alternating and direct currents used in everyday life?
When you plug something into the wall socket at home, (mains power) you are using alternating current, when you use something powered by a battery, you are using direct current.
Can a step down transformer increase current in a DC circuit?
Transformers only work with alternating currents. So the answer is Yes, BUT it would have to be a DC Pulsing circuit. using flip flop circuit or a 555 circuit or chop circuit.
Can alternative current be turned into direct current?
By "alternative" I presume you mean "alternating". Yes it can by using a device called a rectifier then some sort of bypass circuit to conduct the alternating current to ground, usually just a capacitor.
What is the main advantage of using alternating current in the power grid?
Low loss transmission of power at high voltages for long distances then the ability to transform down to lower voltages near the point of usage, i.e. substations and pole transformers near residences.
What converts an alternating current to diredt current?
Alternating Current can be converted to Direct Current by using a DC Converter which contain a Bridge Circuit , a Capacitor and if needed a Transformer.CommentA 'DC converter' is normally called a rectifier.
How does ac dc power supplies work?
The mains to the house is an alternating current and this high voltage is stepped down using a transformer. The low voltage secondary alternating current is converted to direct current using 4 diodes wired as a bridge rectifier. The 'lumpy' direct current is smoothed using an electrolytic capacitor to smooth the resulting dc. It may need to be voltage regulated if the circuits it feeds are voltage sensitive.
How do you measure alternative current using ac ammeter?
I think you mean 'alternating' current ('alternative' means choice). The ammeter must be inserted in series with the load, just as with direct current.
Where would you get alternating current?
You can manufacture your own alternating current, using an oscillator and amplifier capable of outputting significant power. But it's a lot easier to just get it from one of the electrical outlets in your house, since that's what the utility company generates and distributes.
Will magnets lose it's power by rubbing?
You can destroy the magnetism of a magnet by hammering ,heating or using a alternating current method.
More the transformer impedance less the fault current... so is a high value of transformer impedance good for it?
It depends a lot on the application, i would go with low impedance transformers if am using the transformers for distribution as it will really increase the the maximum fault current. If am using the transformers as step up specially for generators or to charge capacitors, using a high impedance transformer is a good idea as it will decrease the inrush current of the system. you have to see your application and decide what fit that best. Mohammad Jaradat Power Generation Project Manager
Is electromagnetism is possible with AC?
AC current creates an alternating magnetic field, consistent with the alternating voltage. The only way I know of using AC current to create a constant magnetic field is to rectify the AC into DC and then use that DC to create the magnetic field.
How did George Westinghouse revolutionise electricity?
He adopted Nikola Tesla's system of Alternating Current generation and transmission using step up and step down transformers via a grid network. This was against the advice of Thomas Edison who was committed to Direct Current and all it's inherent flaws. You cannot transmit DC ascross country and get a useful amount of power out at the other end.
