What is the no-load current of transformer ?

What is the no-load current of transformer ?
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1 Answer

Answer :

The small amount of current flowing in the primary winding in the no-load condition of the transformer is called no-load current.
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Related questions

What is the value of voltage and current of transformer ?

Description : What is the value of voltage and current of transformer ?

Last Answer : The value of voltage and current of the transformer depends on the number of patches of wires in the transformer.

What is meant by transformer ratio ?

Description : What is meant by transformer ratio ?

Last Answer : The relationship between the voltage, the number of punches and the current in the primary and secondary coils of a transformer is called the transformer ratio of the transformer. It can be ... Current Notice the image below. Hopefully it will be helpful to understand the transformation ratio.

How do I step down a step up transformer ?

Description : How do I step down a step up transformer ?

Last Answer : If we want to step up a transformer, we need to punch more of the secondary coil than the number of punches of the primary coil of the transformer. And in order to determine the number of these ... already been written on our electronics site, I did not repeat it. Read the article from this link.

What is a step up transformer ?

Description : What is a step up transformer ?

Last Answer : A step-up transformer is a transformer which gives high voltage in the secondary if voltage is given in the primary. The transformers that we use in UPS , IPS , inverter etc. are step up nature transformers.

Why insulation or thin coating is used in the core of transformer ?

Description : Why insulation or thin coating is used in the core of transformer ?

Last Answer : In the core of a small transformer there are actually many ( E) and ( I) and different sized steel sheets of large size transformers. In fact, one type of varnish / lamination paint is applied on ... was a lot of voltage and drops. So insulation is used in the transformer to prevent this loss.

What is Ideal Transformer ?

Description : What is Ideal Transformer ?

Last Answer : In fact, the ideal form of any machine or object or its norm refers to a condition where the amount of loss is 0%. This standard is mainly used during laboratory research. This means that the output ... Because when that device is turned into reality, a lot of losses come and block the way forward.

What is the power unit of Transformer and why ?

Description : What is the power unit of Transformer and why ?

Last Answer : The unit of power of the transformer is KVA . That is kilowatt volt ampere. The reason is that we know that the unit of power of any machine is determined based on its #loss . Exactly the same ... stood. This is why the unit of power of the transformer is written in kilowatt volt amperes or kVA .

What is the efficiency percentage of a transformer ?

Description : What is the efficiency percentage of a transformer ?

Last Answer : No machine has ever been discovered in the world with 100% efficiency or output. The only transformer is a device whose output power is about 90% to 99% of the input. This means that the power loss ... to the input and output of a device by which the efficiency of the device can be measured.

Transformer is based on which formula ?

Description : Transformer is based on which formula ?

Last Answer : It is based on Faraday's formula. Now the question may arise that Mr. Faraday said that in order to occupy a magnetic field with another coil, one of them must move. Tachara flux will not be obsessed ... DC. So it does not have to be shaken separately. Because its waves tend to be self-evident.

What is a Transformer Symbol ?

Description : What is a Transformer Symbol ?

Last Answer : In Electrical or Electronic Circuit, we often use this symbol to identify the transformer - the correct way to draw and symbolize different types of transformers.

What is primary leakage flux in transformer ?

Description : What is primary leakage flux in transformer ?

Last Answer : The leakage flux caused by the magnetomotive force ( mmf) due to the primary ampere turn is called primary leakage flux when it produces a leakage path from the primary winding. This was the second ... answer regarding Transformer. I will appear with the 3rd episode in the future. So stay with us.

Why is the side-side shorted during the short circuit test in the transformer ?

Description : Why is the side-side shorted during the short circuit test in the transformer ?

Last Answer : During this test, any side of the transformer can be shorted, but for the following reasons, the side-side is shorted and 1. Lay-range instruments have the advantage of being connected to the high side ... both windings below 3% of the rated output , so it is convenient to measure on the high side.

What information is available from the short circuit test of the transformer ?

Description : What information is available from the short circuit test of the transformer ?

Last Answer : The following information is available from the short circuit test 1. Equivalent resistance ( R.) . 2. Equivalent Reactance ( X.) . 3. Equivalent impedance ( Z.) 4. Copper loss 5. Skills and Regulation

What is the purpose of open circuit test in transformer ?

Description : What is the purpose of open circuit test in transformer ?

Last Answer : The following information is obtained from this test and the product is tested in open circuit. Core Loss (Eddy Current Loss and Hysteresis Loss) No-Laid Current Magnetizing Current ( I) Working Current ( I) ... ( R0) Core Loss Reactance ( X) No-Laid Power Factor ( cose,) Transformation Ratio ( a)

What is Open Circuit Test of Transformer ?

Description : What is Open Circuit Test of Transformer ?

Last Answer : Answer : The test is performed at the rated normal full voltage and frequency of the transformer by placing the required number of measuring instruments on either side of the transformer (usually high voltage-side). It is called open circuit test.

What is the reason why wattmeter indicates only copper loss during transformer short circuit test ?

Description : What is the reason why wattmeter indicates only copper loss during transformer short circuit test ?

Last Answer : Answer : The voltage applied in this test is limited to 5% to 10% of the rated voltage . As a result, much less mutual flux ( Φm) is produced in the core than normal mutual flux. Since ... Φm² , the core loss is practically zero. Thus the whole of the wattmeter reading is considered copper loss.

On what does the core loss of a transformer depend ?

Description : On what does the core loss of a transformer depend ?

Last Answer : The core loss of the transformer depends on the voltage applied to the primary.

What is EMF Equation in Transformer ?

Description : What is EMF Equation in Transformer ?

Last Answer : Answer : When AC voltage is applied to the primary of the transformer, current is generated. Which produces variable flux in the primary and goes to the secondary through the core. This variable flux expresses the emf in the primary and secondary of the transformer, which is called the emf equation.

What is the function of transformer bushing ?

Description : What is the function of transformer bushing ?

Last Answer : Answer : The transformer is brought out of the tank by bushing at the winding terminals. These bushings are made of very fine porcelain. These are attached to the lid of the tank with a gasket ... the transformer winding. Their number , size and method of connection depend on the amount of voltage.

Why Vent Pipe is used in transformer ?

Description : Why Vent Pipe is used in transformer ?

Last Answer : There is a vent pipe at the top of the transformer. The mouth of this pipe is closed with glass. The gas created due to overheating of the transformer , the glass bursts under the pressure of the gas and the gas escapes.

What is a Shell Type Transformer ?

Description : What is a Shell Type Transformer ?

Last Answer : The core structure of this type of transformer is also rectangular , but it has three arms. Its two arms are empty and only winding is done on the middle arm. This type of core is called shell type.

What is a Core Type Transformer ?

Description : What is a Core Type Transformer ?

Last Answer : Answer : The core of this type of transformer is made up of a rectangular 'L' laminated steel sheet. It encloses most of the core space in the coils. Only one magnetic socket is made in the ... voltage windings are applied to the two opposite arms of such a core. It is called Core Type Transformer.

What is the principle of transformer ?

Description : What is the principle of transformer ?

Last Answer : The transformer is connected by mutual induction of two circuits or coils under the same magnetic flux. The two inductive coils are magnetically connected to a uniform laminated core without electrical connection ... is completed by connecting the lead to the second coil, current will flow in it.

How to recognize high-side and low-side of transformer without test ?

Description : How to recognize high-side and low-side of transformer without test ?

Last Answer : A typical type of transformer has two coils. One is called high voltage ( HV) winding and the other is called low voltage ( LV) winding. High quality delta is used in HV winding. As a result , ... without test, the shape of the bushing of the transformer can be identified as high side or low side.

Why the frequency of both coils of transformer is the same ?

Description : Why the frequency of both coils of transformer is the same ?

Last Answer : Answer : Using alternating current (AC) in one of the coils of the transformer to produce magnetic field creates another variable magnetic force line , which intersects the surrounding coil. As a ... of the transformer remains the same as voltage is generated in the secondary by the same supply.

What is Transformer Action ?

Description : What is Transformer Action ?

Last Answer : The primary and secondary coils of the transformer are connected by the same mutual flux. Therefore, when AC is supplied to the primary coil, the transfer of electricity from the primary ... the principle of electromagnetic induction . This process of transfer of power is called transformer action.

What is the mutual flux of transformer ?

Description : What is the mutual flux of transformer ?

Last Answer : Answer : Connecting AC , CERS to any one of the coils of the transformer creates a variable magnetic force line in the coil , which intersects the adjacent coil. As a result, voltage is ... , this induced voltage is the transformer voltage and this variable magnetic force line is called mutual flux.

What is Dry Type Transformer ?

Description : What is Dry Type Transformer ?

Last Answer : This type of transformer uses air instead of oil for cooling and insulation, so it is called dry type transformer.

Why Transformer is more efficient ?

Description : Why Transformer is more efficient ?

Last Answer : As there is no rotating part of the transformer, there is no loss of power due to friction and wind obstruction , which happens in other parts.

What is a step down transformer ?

Description : What is a step down transformer ?

Last Answer : If you get low voltage with high voltage supply, it is called step down transformer.

What is the function of oil in transformer ?

Description : What is the function of oil in transformer ?

Last Answer : The job of transformer oil is to cool the transformer. So that the transformer does not get hot and burn.

What is load factor ?

Description : What is load factor ?

Last Answer : The ratio of average load to maximum load of a power plant or customer is called load factor.

What is peak load ?

Description : What is peak load ?

Last Answer : The maximum load of a plant or customer is called peak load.

What is the power factor in pure resistive , capacitive , inductive load ?

Description : What is the power factor in pure resistive , capacitive , inductive load ?

Last Answer : Answer : Power factor cosΦ = 1 in pure resistive load, cosΦ = 0 in capacitive load , cosΦ = 0 in inductive load .

How many types of AC load and what ?

Description : How many types of AC load and what ?

Last Answer : There are three types of AC load , namely , 1) Resistive load , 2) Inductive load , 3) Capacitive load.

What is load shedding ?

Description : What is load shedding ?

Last Answer : When the amount of electricity generated is less than the demand , then in some areas the power supply is cut off and in other areas the power supply is kept on so that the overload does not shut down the whole system. This system is called load shedding.

What is short circuit current ?

Description : What is short circuit current ?

Last Answer : Answer : A fault in an electrical system whose current, before or after the current flows through the load, is combined with one or more phases of neutral current which causes more current to flow than normal. The current is called short circuit current.

What is a current limiting reactor ? How many types and what are they ?

Description : What is a current limiting reactor ? How many types and what are they ?

Last Answer : Answer : A current limiting reactor is basically an inductive coil which limits the short circuit current by providing inductive reactance when required. Types: 1. Based on the structure- a) Dry type ... reactor. Basbar reactors are again of 2 types- a) Ring system reactor b) Tiber system reactor

What is the method of diagnosing short circuit current ?

Description : What is the method of diagnosing short circuit current ?

Last Answer : There are three methods for determining short circuit current , namely- 1) Ohmic method 2) Per unit method 3.) Percentage reactance method.

How to reduce eddy current loss ?

Description : How to reduce eddy current loss ?

Last Answer : Answer : If you want to reduce the current loss, you must make the laminations of the core as thin as possible. And if the laminations can be well laminated or insulated then the eddy current loss can be greatly reduced.

What is Eddie Current Loss ?

Description : What is Eddie Current Loss ?

Last Answer : The iron loss of the transformer depends on the maximum flux density and the supply frequency. Since the transformer is always fixed i.e. fixed frequency and supply and fixed then here core and ... here is considered as constant or unchanged loss. And this is basically known as Eddie Current Loss.

What is quadratic current ?

Description : What is quadratic current ?

Last Answer : The vertical component of the current in an inductive or capacitive circuit which is at an angle of 90 সাথে with the voltage is called quadraturer or reactive current. Dear Reader, These were the important questions and answers of Circuit 1 today. Stay with us to get more such questions and answers.

Why is the current behind the voltage in the RLC circuit ?

Description : Why is the current behind the voltage in the RLC circuit ?

Last Answer : Inductance prevents any change in current or flux. So the current stays behind the voltage.

What are the types of electric current ?

Description : What are the types of electric current ?

Last Answer : There are two types of electric current , for example , ( a) direct current . And (b) alternating current .

What is current ?

Description : What is current ?

Last Answer : Answer : The rate at which free electrons located in a substance flow in a certain direction is called current .

Does being thick increase or decrease the current carrying capacity ?

Description : Does being thick increase or decrease the current carrying capacity ?

Last Answer : : The thicker it is, the greater the current carrying capacity.

What is the current source of Karshof ?

Description : What is the current source of Karshof ?

Last Answer : Karshoff's current formula: The algebraic sum of the combined currents at any point in a circuit is equal. Or the incoming current and the outgoing current are equal at any point in a circuit.

What is required to generate current ?

Description : What is required to generate current ?

Last Answer : Power generation or power generation or power generation or power generation is the production of power from any other primary energy source. The first basic theory of power generation was ... . Other sources used to generate electricity include solar energy and thermal energy stored underground.

How many units and what are the current levels ?

Description : How many units and what are the current levels ?

Last Answer : There are many common units of current measurement. 1. CGS power unit 2. CGS electromagnetic unit 3. Practical unit 4. International unit.

What is Alternating Current ?

Description : What is Alternating Current ?

Last Answer : An alternating current is a current that changes direction as it flows, and its value changes every moment.