The amount of inrush current in the primary of a transformer is limited by the........, A- amount of applied voltage, B- resistance of the wire in the primary winding, C- flux change of the magnetic field in the core, D - all of the above What precaution must be observed when working whit current transformers? A- never have a load on the secondary, B- always ha a load on the secondary, C- de-energize the primary whenever there is a load on the secondary, D - none The fact that the movable coil of a constant-current transformer moves further away from the stationary coil with a increase in load current is based on which fundamental priciple of magnetism? A- like magnetic poles attract, B- like magnetic poles repel, C- the amount of current flowing through a coil inverdely proportional to its flux density. D- non

Q: 9. A single-phase transformer has a turn ratio of 6, the resistances of the primary and secondary…

A:

Q: In a transformer setup, two coils with a magnetic core between them, a changing magnetic field…

A: A transformer is a static electric device consisting of two or more electric circuits interlinked by…

Q: When a transformer takes a current of 0.8 A and its primary is connected to a 235 V, 50 Hz supply,…

A:

Q: 4. Define voltage regulation of a transformer? 5. Full load copper loss in a transformer is 1600W.…

A: Since you have posted multiple questions , we will provide the solution only to the first three…

Q: The core of a three phase, 60 Hz, 11000/750 V delta/star, 310 kVA, core-type transformer operates…

A:

Q: What is current transformer? 2 difference between current and potential transformers.

A: A step-up transformer that lowers the current while raising the voltage is a current transformer.…

Q: Flag this question for future reference What is the test that can be conducted in the laboratory to…

A: In this question we have to determine in which test transformer impedance drops are dependent on…

Q: 1. In a transformer, which options are correct: A. Works on Faraday’ law and Ampere’s law B. DC…

A:

Q: A 5000 V / 320 V, 50HZ single-phase transformer is to have an approximate e.m.f. per turn of 25 V…

A:

Q: iii. No-load current 3. If the ratio of V/F has been kept constant and the observed value of…

A: Q.1) Explanation 1)When the frequency is lowered (for slower motor speed), the magnetic field…

Q: transformer

A: If we are giving dc to the transformer it won't work . transformer works on the principle of electro…

Q: Figure Q1 shows a transformer core that has the primary winding (Np) of 500 turns and second winding…

A: A transformer core is shown with dimensions. Number of turns in the primary winding and secondary…

Q: Identify, which component of no load current supplies hysteresis loss, in a practical transformer?…

A: In the question choose the correct option?    which component of no load current supplies hysteresis…

Q: Prove that the primary and secondary E.M.F. lag behind the flux by 90 degree. ha?

A: ''Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: (a) find the eddy current frequency of 50Hz (b) find the hysteresis loss in watt at a frequency of…

A:

Q: 2-An ideal transformer consists of a primary winding (100 turn) and a secondary winding (1000 turn).…

A: Given here an ideal transformer primary winding turns and secondary winding turns and secondary…

Q: I need help with solving the question.

A: 7. Transformers are classified based on their construction into two main categories: Core type…

Q: A 400/230V, 50Hz, single phase  transformer has 200 turns on high  voltage side. Find turns ratio,…

A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…

Q: Solve the problem and illustrate the circuit. Answers must be in 3 decimal places A 480/220 V, 60-hz…

A: In this question we need to find the cross-sectional area in the core in cm and the primary and…

Q: 6) A transformer takes 100V at primary and gives 50V at secondary, its turn ratio equals ... ....…

A: Primary voltage =100V secondary voltage= 50V

Q: A single pahse transformer has 700 primary and 2100 secondary turns. The primary is connected to 400…

A:

Q: A 3-phase 100OKVA, 11000/416 transformer is delta-connected on the primary and star connected on the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In a single-phase transformer supply voltage 230V, 60 Hz. The supply voltage side has 500 windings…

A: According to the question we need to calculate the value of the maximum amount of flux.

Q: 3. If a transformer is operated at rated frequency but at voltage higher than the rated value, how…

A: Given that the transformer is operating at a rated frequency but higher voltage  The RMS value of…

Q: The voltage per winding of the 220V/12V, 60 Hz single phase core transformer is 1V. If the maximum…

A:

Q: 1- The low voltage winding is wound under the high voltage winding. Why.

A: As per bartleby guideline for more than one question asked only first is to be answered please…

Q: 1. A single-phase transformer having a ratio of 4400:220 and having an effective core area of 120…

A: The solution is given below. The problem is related to transformer.

Q: 16. If a 0.6 accuracy class current transformer has a phase angle ß of + 10' at 100% rated current,…

A: Solution 1chevron_right close Value of 'β=10' Step 2 Ratio correction factor ,…

Q: A 4500 V / 360 V, 50Hz single-phase transformer is to have an approximate e.m.f. per turn of 25 V…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: 3. The low-voltage winding of a 3000/200-V, 50-Hz, a single-phase transformer has 80 turns and…

A:

Q: Q6. Specification/Range of Power Supply:

A:

Q: A single pahse transformer has 230 primary and 870 secondary turns. The primary is connected to 400…

A: We have an Single phase transformer with, Primary Turns (N1) = 230 Secondary Turns (N2) = 870…

Q: The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates…

A: Given: 3-phase, f=50Hz ,11000/550V delta /star, 300kVA , Flux, ϕ=0.05Wb

Q: The open-circuit voltage of 240V and the full load secondary voltage of 220 V, then the % regulation…

A: The open-circuit voltage of 240V the full load secondary voltage of 220 V, then the % regulation of…

Q: current supplies hysteresis loss, in a practical transformer? a. None of these b. IM c. IC d. I0

A:

Q: A 200-kVA, 3-phase, 50-Hz transformer has a voltage ratio (line voltages) of 33/11-kV and is…

A: Given:Rating of transformer=200kVAThe transformer is delta/star connectedvoltages are given as…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.