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Power Transformers have both no load and full load losses. The key is copper wiring, as copper varies with the square inches of the secondary and primary currents.
What else can I help you with?
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 much load can bear a 25kva transformer?
25 kV.A for a permanent load; more if the load is variable.
What happen if the load amperage is more than the transformer va thload will burn or the transformer?
If the load amperage exceeds the transformer's rated VA capacity, it can lead to overheating of the transformer due to excessive current flow. This overheating can damage the transformer’s insulation, potentially causing it to fail or burn out. Additionally, the connected load itself may also suffer from overheating, leading to equipment damage or failure. Properly sizing the transformer for the load is essential to prevent these issues.
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
What are the effects of an unbalanced load on a transformers?
An unbalanced load on a transformer can lead to several adverse effects, including overheating, reduced efficiency, and increased losses. It may cause one or more phases to carry significantly more current than others, resulting in overheating of windings and insulation breakdown. Additionally, the transformer's output voltage can become distorted, leading to poor performance of connected equipment. Prolonged unbalanced loading can shorten the lifespan of the transformer and increase maintenance costs.
What is copper loses in transformer?
Losses due to loading. As more load (more current) is put on a transformer, these losses will increase. They are often referred to as I2R (or I^2*R) losses.
What is Full load current in transformer?
The no-load current of a transformer is the current which is drawn from the source at rated voltage and frequency even when no actual load current is being supplied.The no-load current is what must be drawn to overcome the inherent and unavoidable losses of the transformer's components. Those losses comprise the primary circuit's resistance (known either as the "copper losses" or as the "resistance losses") and the transformer's magnetic reluctance (known either as the "iron losses" or as the "magnetic losses").Reluctance is the techical description given to the energy necessary to excite the magnetic circuit and overcome its hysteresis, the effects of eddy currents, etc.For more information see the Related link shown below.
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
Do Scott connection have equal iron losses?
In a Scott connection, the iron losses in the two transformers can be unequal due to differences in their magnetic circuits and load conditions. The main transformer typically handles more load than the teaser transformer, which can lead to varying levels of core saturation and hysteresis losses. Additionally, the design and construction of the transformers may affect their efficiency and losses. Therefore, while the connection aims to provide balanced output, the iron losses may not be equal.
How much load can bear a 25kva transformer?
25 kV.A for a permanent load; more if the load is variable.
What is the purpose of a high voltage transformer?
if the transformer is distributing transformer then we shoud have to give more prefer to the high volatage to reduce losses if we distibute power at low volage there is more current which causes more losses and in hv system there is high volage and low is current so the losses are also low
Will transformer heating be approximately the same for resistie inductive or capacitive loads of same VA rating?
Yes because the transformer heating (power losses) depend on the load current and the load voltage. It can be assumed that the voltage stays more or less constant, therefore the iron loss is also constant. The copper loss depends on the square of the load current. So it is the VA of the load that determines the power loss and any heating.
What happen if the load amperage is more than the transformer va thload will burn or the transformer?
If the load amperage exceeds the transformer's rated VA capacity, it can lead to overheating of the transformer due to excessive current flow. This overheating can damage the transformer’s insulation, potentially causing it to fail or burn out. Additionally, the connected load itself may also suffer from overheating, leading to equipment damage or failure. Properly sizing the transformer for the load is essential to prevent these issues.
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
What are the effects of an unbalanced load on a transformers?
An unbalanced load on a transformer can lead to several adverse effects, including overheating, reduced efficiency, and increased losses. It may cause one or more phases to carry significantly more current than others, resulting in overheating of windings and insulation breakdown. Additionally, the transformer's output voltage can become distorted, leading to poor performance of connected equipment. Prolonged unbalanced loading can shorten the lifespan of the transformer and increase maintenance costs.
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.
Why rating if transformer is taken in KVA?
Unit or say Rating of transformer is in KVA and not in KW because copper loss of a transformer depends on current and iron loss on voltage. Hence, Total transformer loss depends on volt-ampere ( VA ) and not on phase angle between voltage and current i.e. it is independent of load power factor. That is why Unit or say Rating Of Transformer Is In KVA and not in KW.
