0
There are various measures that can be taken to reduce core losses. Lamination of the transformer core is believed to reduce core losses significantly.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Why core losses are negligible in short circuit test of transformer?
I am so sorry for your core losses
Explain why cruciform shape is used in transformer core?
to reduce core reluctance..
What is the main material in a motor armature?
Instead of a single piece of metal, the armature is made up of laminated thin metal plates. The thickness of the laminations is determined by the supply frequency. They are approximately 0.5mm thick. For the armature core, silicon steel laminates are used to reduce eddy currents and hysteresis losses.
How do you reduce the hysteresis loss?
Hysteresis losses are a function of the magnetic characteristics of the magnetic circuit, so there is very little you can do to minimise hysteresis losses other than to reduce the primary voltage to a transformer if that is at all practicable. These losses are really in the hands of the manufacturers who design and manufacture magnetic circuits.
Explain the power flow diagram of induction motor?
The input power, Pin, is reduced by different loss sources in the system. These reductions are the difference between input power & output power. The losses are: PSCL: Stator copper losses, or I2R losses Pcore: Core losses PRCL: Rotor copper losses PF&W: Friction & windage losses Pmisc: miscellaneous losses All of these losses reduce the input power. The output power is the input power minus all of the losses. Pout = Pin - PSCL - Pcore - PRCL - PF&W - Pmisc
How do you reduce core losses in distribution transformer?
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.
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.
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.
Why should we separate the core losses?
separation of core losses are necessary to determine core losses at diffrent frequency.........
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.
How is the core losses occur?
The core loses occur because of the stator and rortor.
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
What are core losses?
Iron losses are termed as core losses. There are mainly two losses - Copper loss and iron loss. Iron loss is no load loss.
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
Is no heat loss and no core loss the same thing?
No. Core losses would be hysterisis loss and eddy current losses. Heat losses most likely is referring to I2R (I squared R) losses, which is losses due to the resistance of windings, and is dependent upon loading. There are other losses that are not heat related and core related - such as losses due to vibrations (the core is a major player here, but part of the noise is from windings and cooling systems). I've never heard someone refer to losses as "no heat" or "no core". These are fundamentally impossible - there WILL be core losses, and there WILL be I2R losses if you have a transformer and it is loaded.
How Core losses can be reduced?
by using the laminated core
