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Reducing core losses is a design responsibility of the manufacturer. They do this by laminating the core (to reduce eddy-current losses) and carefully selecting the type of material used for the core (to reduce hysteresis losses). There's very little that you, as the user, can do about reducing core losses.
What else can I help you with?
Why are stripes of iron plates joined instead of using a single block of iron core in a transformer?
To reduce heat generated and eddy current losses in transformer's core during operation.
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
How eddy current losses andhysterious losses can be reduced?
eddy current can be reduced by using laminated cores. and also be reducing the thickness of the stampings. transformer iron loss is the combination of eddy current loss and hysterisis loss. both the losses depend on core of the transformer and iron loss is a constant loss.
How to calculate transformer core loss and iron loss?
there are several losses in a transformer that prevent it from attaining 100% efficiency. One is core loss, which can be divided into Hysteresis losses, Eddy currents and Magnetostriction loses. see for more details http://en.wikipedia.org/wiki/Transformer#Energy_losses
What are the Advantages of amorphous core for a transformer?
The following advantages are there: 1. Low hysteresis losses 2. Low eddy current losses 3. Skin-effect in core is low
How do you reduce core losses?
There are various measures that can be taken to reduce core losses. Lamination of the transformer core is believed to reduce core losses significantly.
Why are stripes of iron plates joined instead of using a single block of iron core in a transformer?
To reduce heat generated and eddy current losses in transformer's core during operation.
Why core losses are always fixed in transformer?
Core losses are losses in the magnetic system of the transformer, such as eddy currents in the core, hysteresis losses, etc. Because of this, the losses are constant, regardless of load, assuming voltage and frequency stay fixed.
Why core losses are negligible in short circuit test of transformer?
I am so sorry for your core losses
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
How eddy current losses andhysterious losses can be reduced?
eddy current can be reduced by using laminated cores. and also be reducing the thickness of the stampings. transformer iron loss is the combination of eddy current loss and hysterisis loss. both the losses depend on core of the transformer and iron loss is a constant loss.
How to calculate transformer core loss and iron loss?
there are several losses in a transformer that prevent it from attaining 100% efficiency. One is core loss, which can be divided into Hysteresis losses, Eddy currents and Magnetostriction loses. see for more details http://en.wikipedia.org/wiki/Transformer#Energy_losses
How do you increase the effciency of a transformer?
You can manufacture the transformer using larger guage wire to reduce resistance.AnswerTransformers are already designed to have very high efficiencies. There would be very little you could do that the designer hasn't already done. But it would involve changing the core material (to reduce hysteresis losses), changing the design of the core (to reduce eddy current losses and leakage reactance), and using conductors with lower resistance (to reduce the copper losses). -----------You have pointed out additional ways to improve efficiency. I don't really know which may reduce losses the most, but I2R losses have to be a significant contribution. Note that the question was "How do you (the mfg) increas the efficiency of a transformer NOT whether or not they are already doing it. The simple answer is that you increase the efficiency by modifying anything that reduces energy losses. I still believe the wire size would be a large contibutor in a steady state condition. --glennyD---To accommodate conductors with a larger cross-sectional area (guage), the core would have to be larger (increased mass) causing increased core losses. Maximum efficiency occurs when core losses and copper losses are the same.
Explain why cruciform shape is used in transformer core?
to reduce core reluctance..
Distribution transformer design for which?
Distribution transformers are used on distribution side not transmission side. Core losses or Iron losses ( Hysteresis and eddy current losses ) are proportional to the square of the voltage. Copper losses are proportional to the square of the current. Distribution side voltage is less compared to the transmission side. core losses are constant irrespective of the load, but copper losses varies with the load. Transmission side transformers are not usually stopped from working by the operator frequently, they continued to work throughout the year until and unless if there is a problem and also they almost have constant load. So they are going to have more core losses. So their core is designed in order to get less core losses. Any way the copper losses will be less since the current is less because voltage is more. Distribution side transformers are having more load fluctuations and more stoppages.Their voltage is low so they will have less core losses, no need to design a better core, but distribution side current is more so copper losses are more, so distribution side transformers are designed to have less winding resistance, so that the copper losses are low.
What is the purpose of transformer core?
yes core is usefull in transformer since it it increase the permeability for the flux (i..e,it offers less relucyance path thanj air ).Their by decresing the losses in the transformer.
What happens when frequency is increased of transformer?
When the frequency of a transformer is increased, the core losses of the transformer increase due to increased eddy current losses and hysteresis losses. This results in a rise in temperature of the transformer. Additionally, higher frequency can affect the impedance of the transformer and alter the voltage regulation and efficiency.
