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Why power at the secondary winding is less than the power at the primary winding?
Wiki User
∙ 13y ago
If power were greater at secondary you would have an unlimited source of power. It is less because there are always losses in a transformer.
Wiki User
∙ 13y ago
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What is considered to be the primary side on a step down transformer?
Transformers have windings - typically each winding is designated for a particular voltage. Any one of the windings can be an "output", as any winding can be an "input". Usually for consumers, one of the windings is intended to be 120V for the input. In that case, all of the other windings would be an output.I should also mention that while you can have several outputs, you can only have one input. Some transformers have the windings color coded to designate input and outputs.Hope this helps!
How you can find out transformer primary and secondary turn?
The primarys are marked with the letter H and the secondary terminals are marked with the letter X. The rest depends on how many phases, single transformer, bank transformes, secondary outputs desired, delta or wye or both, etc..... A: most of the time there are not marked with anything. for a power transformer the primary will offer a resistance of 15 ohms the secondary can be more or less depends on applications
How does a step down transformer work?
well the working of the step doen transformer depends on the number of turns on the secondary side of the transformer, now in the case of a step down transformer, the number of turns in the secondary windings are less as compared to the number of turns at the primary side/winding, so the amount of flux which links the secondary side of the transformer is also less resulting in the production of less amount of emf at the secondary side. hence the status of the voltage is decreased as compared to the voltage of the primary side.
How does a step-down transformer work?
well the working of the step doen transformer depends on the number of turns on the secondary side of the transformer, now in the case of a step down transformer, the number of turns in the secondary windings are less as compared to the number of turns at the primary side/winding, so the amount of flux which links the secondary side of the transformer is also less resulting in the production of less amount of emf at the secondary side. hence the status of the voltage is decreased as compared to the voltage of the primary side.
Why primary current is higher than secondary current in transformer with turns ratio 1?
In a transformer with a turns ratio equal to 1, the primary current comprises the reflected secondary current plus the magnetizing current necessary to sustain the "back EMF developed across the mutual inductance coupling the primary winding to the secondary. Therefore the primary current is always greater than the secondary current in a transformer with a turns ratio equal to 1. This should be evident by applying Kirchhoff's Current Law to the central node of the "T-equivalent" model of a transformer.
How do you calculate primary current?
If it's a step up or step down transformer and you know the secondary side current, multiply the secondary current by the turns ratio. If you know the power in the secondary winding but not the current, divide the secondary power by the secondary voltage to get the secondary current and then multiply the secondary current by the turns ratio to get the primary current. The turns ratio is the number of turns on the secondary winding divided by the number of turns on the primary winding. For a step up transformer, the turns ratio will be greater then one. If it's a step down transformer, then the turns ratio will be less than one. If you don't know the turns ratio, divide the secondary voltage by the primary voltage to get the turns ratio.
How could you convert step up transformer into step down transformer?
Injecting power into the higher voltage winding of a transformer will make it act as a step down transformer; injecting power into the lower voltage winding will make it act as a step up transformer. A transformer can be used both ways.
What is considered to be the primary side on a step down transformer?
Transformers have windings - typically each winding is designated for a particular voltage. Any one of the windings can be an "output", as any winding can be an "input". Usually for consumers, one of the windings is intended to be 120V for the input. In that case, all of the other windings would be an output.I should also mention that while you can have several outputs, you can only have one input. Some transformers have the windings color coded to designate input and outputs.Hope this helps!
A step up transformer has 300 turns on its primary coil and 90 000 turns on its secondary coil If the current flowing through the secondary is .5 amps What is the current flowing in the primary?
1500A. You probably have pri / secondary confused. primary is usually used to denote the higher voltage winding, which will have more turns than the secondary. The secondary will have lower voltage, less turns, but will carry more current.
How you can find out transformer primary and secondary turn?
The primarys are marked with the letter H and the secondary terminals are marked with the letter X. The rest depends on how many phases, single transformer, bank transformes, secondary outputs desired, delta or wye or both, etc..... A: most of the time there are not marked with anything. for a power transformer the primary will offer a resistance of 15 ohms the secondary can be more or less depends on applications
A transformer has 150 turns on the primary coil and is connected to a 120 volt power source How many turns will be needed on the secondary coil to provide a secondary voltage of 40 volts?
600 volts I'd like to point out that your question is asking for the secondary voltage, which is usually lower than the primary, where there are more windings on the secondary than primary - Thus your secondary is higher voltage than your primary. I would say the question should be worded differently so the primary has 500 windings, and the secondary has 100 windings.
Why is the wire in the primary coil is made thick than of secondary coil in step up transformer?
i have no idea but maybe this is a possibility voltage is inversely proportional to current the voltage in the primary coil is lower than in the secondary therefore the current in the primary coil is higher than in the secondary coil in order to reduce energy lost in the primary coil, the resistance is lowered by increasing the cross-section area of the coil as R is inversely proportion to area So maybe it is thicker to reduce energy lost in the form of heat, thus making the transformer more efficient
How does a step down transformer work?
well the working of the step doen transformer depends on the number of turns on the secondary side of the transformer, now in the case of a step down transformer, the number of turns in the secondary windings are less as compared to the number of turns at the primary side/winding, so the amount of flux which links the secondary side of the transformer is also less resulting in the production of less amount of emf at the secondary side. hence the status of the voltage is decreased as compared to the voltage of the primary side.
How does a step-down transformer work?
well the working of the step doen transformer depends on the number of turns on the secondary side of the transformer, now in the case of a step down transformer, the number of turns in the secondary windings are less as compared to the number of turns at the primary side/winding, so the amount of flux which links the secondary side of the transformer is also less resulting in the production of less amount of emf at the secondary side. hence the status of the voltage is decreased as compared to the voltage of the primary side.
Why primary current is higher than secondary current in transformer with turns ratio 1?
In a transformer with a turns ratio equal to 1, the primary current comprises the reflected secondary current plus the magnetizing current necessary to sustain the "back EMF developed across the mutual inductance coupling the primary winding to the secondary. Therefore the primary current is always greater than the secondary current in a transformer with a turns ratio equal to 1. This should be evident by applying Kirchhoff's Current Law to the central node of the "T-equivalent" model of a transformer.
What happens with the primary voltage in step down transformer?
The power going into a transformer (primary) is the same as the power leaving a transformer (secondary). P=VI Power = Voltage X Current. A step down transformer means that the voltage leaving a transformer is less than the voltage entering the transformer. The power out is the same as the power going in, so if the voltage is less, the current must be greater. Well said. This is why transformers are rated in VA, on bigger transformers KVA. Both sides have to be equal.
Can you use secondary memory in place of primary memory?
No, Because secondary takes more time as compared to primary. primary takes less time as compared to secondary.
