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What is the effeciency of a transformer if the power input is numerically equal to the power output?
Wiki User
∙ 8y ago
100%. It not practically possible to achieve 100% though. There are iron and copper losses even if it is not loaded.
Wiki User
∙ 8y ago
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What are the advantages of Transformer coupling method?
transformer coupling ensures maximum power transfer is obtained even if the output impedance is not equal to the load impedance
What equation is used to calculate the dc output voltage for a given ac input voltage to a step-down transformer?
so far i knew, the transformers are used to seprate dc component from ac component of supply fed into primary winding of coil. still if dc output value of ac input has to be calculated then it is v2*2/sqrt(pi) where v2 is peak ac output voltage and is equal to v1*n2/n1 pi is a constant numerically equal to 3.14 thus the dc value is average value of output ac voltage -------------------sachin_the_rex@aol.in------------------------------
Is it the value of input voltage equal the value of output voltage?
No. There are several factors that may affect the output voltage. For instance: Resistors, Transformer, Voltage regulators and others that can control the output voltage to a certain level.
What is a full load current in single phase transformer?
It is the rated maximum current that can be taken from the transformer. This is equal to the VA rating divided by the output voltage. So a 6 kVA 240 v transformer would have a maximum current rating of 6000/240 or 25 amps.
What is the voltage regulation of an ideal transformer?
Ideally the voltage regulation voltage of a transformer should be zero. It means when you change the load from no load to short circuit (theoretically, normally you don't want to burn the transformer windings) the output voltage doesn't change and remains equal to the no load voltage.
What are the advantages of Transformer coupling method?
transformer coupling ensures maximum power transfer is obtained even if the output impedance is not equal to the load impedance
Describe the circumstances for which the output work would equal the input work in a machine?
100 % effeciency ... in the real world found only in electric heaters. ................................. [note - all loses are heat]
What equation is used to calculate the dc output voltage for a given ac input voltage to a step-down transformer?
so far i knew, the transformers are used to seprate dc component from ac component of supply fed into primary winding of coil. still if dc output value of ac input has to be calculated then it is v2*2/sqrt(pi) where v2 is peak ac output voltage and is equal to v1*n2/n1 pi is a constant numerically equal to 3.14 thus the dc value is average value of output ac voltage -------------------sachin_the_rex@aol.in------------------------------
If a machine's input work and output work are equal the machine has high?
It has 100% efficiency, and one might say that the machine has replaced friction with fiction.
Is it the value of input voltage equal the value of output voltage?
No. There are several factors that may affect the output voltage. For instance: Resistors, Transformer, Voltage regulators and others that can control the output voltage to a certain level.
How do you use Japanese light bulb 100V in Malaysia which is 240V?
get a step down transformer whose output is equal to the voltage of your bulb
What does happen on transformer when both type of losses become equal?
the losses may merge resulting in the output being less than expected.
What is a full load current in single phase transformer?
It is the rated maximum current that can be taken from the transformer. This is equal to the VA rating divided by the output voltage. So a 6 kVA 240 v transformer would have a maximum current rating of 6000/240 or 25 amps.
What is the voltage regulation of an ideal transformer?
Ideally the voltage regulation voltage of a transformer should be zero. It means when you change the load from no load to short circuit (theoretically, normally you don't want to burn the transformer windings) the output voltage doesn't change and remains equal to the no load voltage.
What is transformation ratio of an electrical transformer - 52k?
The transformer is called a passive device since it cannot generate power. Its input power Ein x Iin. must equal its ouput power Eout x Iout, with the exception of internal power losses in the transformer itself. This equality can be used to derive a relation for the current transformation properties of a transformer, namely,In other words, if the output voltage increases, the output current must decrease proportionately, to keep the output power constant. The quantity Np/Ns is called the turns ratio.
Why would a power transformer trip on restricted earth fault?
because current entering ct's of High Side is not equal to low side ct's output current
What is the voltage output if the transformer is connected backwards?
It doesn't really matter which way around you use a transformer, the primary winding is ALWAYS whichever winding you connect to the supply, and the secondary winding is ALWAYS whichever winding you connect to the load. For either connection, the turns ratio will ALWAYS equal the voltage ratio for an ideal transformer (or close enough for a real transformer).
