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The generator transformer is the first essential component for energy transmission, allowing energy supplied by the generator to be transferred to the network at the required voltage.
The generator transformer is the first essential component for energy transmission, allowing energy supplied by the generator to be transferred to the network at the required voltage.
This is a type of Power Transformer where the LV winding is connected to the generator through the bus duct and HV winding to the transmission system. In addition to the features of Power Transformer, our Generator Transformer is designed to withstand over voltage caused by sudden load throw off from the generator. It is built as a single or three phase unit and located in power stations.
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∙ 8y ago
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∙ 15y agoA transformer is a device that transfers electrical energy from one circuit to another by means of a varying magnetic field. see the Related Link below for a whole bunch of info on Transformers and explanations on how they work. http://en.wikipedia.org/wiki/Transformer
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∙ 13y agoA device used to transfer electric energy from one circuit to another, especiallay a pair of multiply wound, inductively coupled wire coils that effect such a transfer with a change in voltage, current,phase, or other electric characteristic.
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∙ 9y agoA power transformer is a static electrical device that transfers energy by inductive coupling between two of the winding circuits.
Answer
Transformers are categorised in several ways, which makes life difficult. Generally, a 'power transformer' is a large transformer used to change voltage levels within the electricity transmission/primary distribution system.
However, in the electronics field, a power transformer is one that changes the mains supply voltage down to a lower value used by electronic devices.
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∙ 14y agoMegatron, Starscream, Barricade, Brawl, and Blackout.
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∙ 14y agoA transformer is a car that can transform into an robot or somethin mechanical.
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What is the purpose of the neutral?
On a single phase supply the neutral is one of the current carrying wires, the other one being the live wire. The neutral is earthed at the tansformer and sometimes at other places as well depending on the system in use. On a 3-phase 4-wire system the neutral carries current only when the load is unbalanced, in other words when there are unequal currents in the three live wires.
How do you convert 240 volts to 1.5 volts?
There are several ways to convert a 240 volt input to a 1.5 volt output. If the 240 volt input is alternating current (AC), a simple transformer can reduce the 240 volts to 1.5 volts (AC). A properly configured resistor or impedance coil in series with the input and output would also do the job but a tansformer also serves to isolate the output from the input offering greater protection for the 1.5 volt device. You If 1.5 volts direct current (DC) is required, a rectifier circuit is needed after the 1.5 volt AC output. If the source is 240 volts (DC), A resistance circuit in series can reduce the output voltage. You can also use electronic circuitry to chop of the 1.5 volts.
How you differentiate between single phase and three phase transformer?
A single-phase transformer works with a single-phase supply, while a 3-phase transformer is used with a 3-phase supply. A single-phase transformer has 2 wires on the primary and secondary (ignoring taps) while a 3-phase tansformer has 3 or 4 wires on the primary and secondary.
What happens to current in a step-up transformer?
Actually current transfomer is step up voltage transformer n step down current transformer as current transfomer is having single primary turn of thick conductor but having more number of secondary turn of thin wires..so wkt tansformer ratio k= n2/n1=v2/v1=i1/i2. so it steps up volatge n steps down current...so we use current transformer as a step up transformer almost in all generating stations. Current transformers typically have terminals for a voltmeter on their case and a hole through that case. If you run your current carrying lead through the hole and connect an appropriate voltmeter (the voltmeter's design and resistance may affect the results) to the voltage terminals, the voltmeter will indicate the current in the lead times some factor which should be marked on the current transformer. If you thread the current lead through the hole N times then the voltmeter will indicate N times what it would read with the lead going through once (assuming that the ampere turns resulting do not cause saturation of the transformer's core.
What is one of most common uses of transformer?
Both Current and Potential Transformer are instrument Transformers which are used to measure very high current and voltage respectivly. Current Transformer is a Step up transformer and used to measure high current, its secondry is connected to ammeter of very small capacity (usally 5 A) but its Scale is calibrated according to actul values. Potential Transformer is a step down tansformer and its secondry is connected to voltmeter of small range but again the scale is calibrated for actul values. So as a whole both Current and Potential Transformers are used to measure high values of Current and Voltage respectivly.
What is the wiring diagram of a 277V panel in layman's terms?
A 277 panel looks exactly like a 480 3 phase delta panel except that it has a neutral bus (the neutral is generated at the supply tansformer, usually by a zig-zag configuration.) If you measure phase to phase you get 480. If you measure any phase to neutral, you get 277. There are a lot of exceptions, but usually the 480 supply to the 277 transformer is not grounded, but the neutral from the zig-zag windings of that transformer is grounded. I just spent 15 minutes trying to google a zig-zag wiring diagram for a transformer, but couldn't come up with one. So I will let that be your project. The short answer is that the 277 panel looks exactly like a 480 panel with a neutral bus, but if you don't know what that looks like, it is saying that zebra tastes exactly like lion. Us lektrick enjineers know that zebra tastes more like hyena, but you mite think that it tastes more like giraffe. The even shorter answer is that you have to use a 480 panel because that is the voltage in the panel. So go to the local electric supply house and ask to see the wiring diagram for a 480 panel and you will find that you are looking at the diagram for a 277 panel. You owe me a six pack for this answer even tho I did not explain it in layman's terms. A special tap off of a 480 volt supply panel using one hot leg and a neutral much the same as 120 volt, but has more power.
What is the moral of the story of transformer 3 movie?
Um, don't mess with the Autobots? Don't be the Fallen and kill all your fellow Primes? The Transformers isn't really about moral issues, but there are a few good examples. Take Jazz. He died to keep Sam and the Allspark out of Megs's grubby grip. Or Jetfire, who surrendered his very spark to aid Optimus in his battle against the Fallen. Even Ravage could be a morally correct character (No, I'm not saying that you should attatch a machine gun to your cat's back and send him on dangerous Allspark-retrieval missons). He's loyal and brave, if somewhat miss-directed and simple-minded.
Why a full wave rectifier is preferred over a half wave rectifier?
The a.c. component, or ripple, produced by the 4-diode (full wave) bridge rectifier is the same as that produced by the 2-diode full wave rectifier. The bridge is connected across the secondary winding of a transformer. The 2 diodes of the other type of full wave rectifier are each connected to one end of a winding, but that winding requires a center tap. For any desired value of d.c. after rectification, the a.c. voltage of the 2-diode rectifier winding has to be twice that of the winding required for the bridge.
What is current voltage transformer?
A transformer is a device that steps up, or steps down voltage. During this process current is also stepped up or down:however, voltage and current are inversely proportional ( meaning an increase in voltage results in a decrease in current and vice versa ) As an example: A step up transformer of 10:1 ratio with 12 volts and 10 amper of current applied to the primary will have ten times the voltage ( 120 volts ) and ten times less current ( 1 amrere ) at the secondary...and a step down transformer with the same turns ratio with 120 volts and 1 ampere applied to the primary will have 12 volts and ten ampere available at the secondary. The electricity supplied into homes and business uses wires carrying very high voltage and low current over long distances, then uses step down transformers to step down the voltage and step up the current. However, in power engineering and protective relaying applications, there are what are called "instrument transformers" which have the specific purpose of providing information to devices (such as relays or meters) about the voltages or currents in the power system. Therefore, there are some differences in construction and connectivity between a Current Transformer (CT) and a Voltage (or Potential) Transformer (PT). A CT will typically have a toroidal core and evenly distributed secondary windings so as to minimize leakage reactance. The primary is typically the main power line conductor, which passes directly through the toroidal core. This type of transformer is specifically for the purpose of measuring current values, and the secondary windings cannot be left open-circuited, or a large voltage will be produce, resulting in dielectric failure (and often an explosion). If a device is not connected to the CT, its secondary must be short-circuited. A PT is connected between the main conductor and ground and can be either wound in the normal way, or the voltage can be taken from a subsection of a string of capacitors (this is called a Capacitive Voltage Tansformer or CVT, and is usually cheaper than the wound type, but is typically not as accurate). This type of transformer measures voltage values, and the secondary winding cannot be short-circuited, as this will produce excessively high currents, resulting in the failure of the PT or the wires it is connected to. A PT can be left open-circuited.
