Figure 3 shows a transformers consists of soft-iron core, coils X and Y. Soft iron core aс, 240 V Coil X Coil Y

Q: Question 2 A single phase 50 Hz core type transformer has rectangular cores 30 × 20 cm. and the…

A: The objective of the question is to find the number of turns per limb on the high and low voltage…

Q: A single-phase 762 V/ 1379 V, 59 Hz transformer has a maximum core flux density of 1 Tesla and an…

A: Given parameter A single phase 762/1379V Frequency f= 59Hz Core flux density B= 1T Cross sectional…

Q: A 800/170V, 50 HZ, 1-phase transformer with cross sectional area of the core is 24 cm? and maximum…

A:

Q: 2 A 1000 kVA 11 kV/400 V ONAF cooled transformer works on a cycle of 3 hours heavy load and 21 hours…

A: Given that the peak load is 140% and can only be maintained for 0.5 hours per hour of time constant,…

Q: Berry type transformer has has more than two magnetic circuits. Select one: O True False

A:

Q: A single-phase transformer is required to step down the voltage from 1100 V to 230 V at 50 Hz. The…

A:

Q: In transformer, the hysteresis loss depends on load current O only flux density O both frequency and…

A: consider the given question;

Q: Problem: For the given circuit as shown in figure a) Find the equivalent reactance b) Draw the…

A: Solution !!

Q: In two winding transformers, windings are electrically isolated and magnetically connected. Select…

A: Transformer works on the principle faradays laws of electromagnetic induction.  Transformer consist…

Q: A 5 kV/ 112 V, 50 Hz, single-phase transformer is to have an approximate E.m.f. per turn of 27 V and…

A: 5KV/112 V, 50Hz single phase transform have per turn emf= 27V. Flux density B =1.55T Flux = B.A  A…

Q: In transformer, the loss which remains constant irrespective of load is

A: Correct answer is Core losses core losses in the transformer consists of hysteresis and eddy current…

Q: A single-phase 800 V/100 V, 50 H transformer has a core maximum density of 1.8 Wb/m² and an effe…

A:

Q: A single-phase transformer is required to step down the voltage from 1100 V to 230 V at 50 Hz. The…

A:

Q: The various types of errors in dynamometer wattmeters are A./Error due to Eddy currents B./Error…

A: The solution is given

Q: For dc machines, the series field windings have many turns of fine wire true False

A:

Q: Open circuit test on transformers is conducted to determine O Eddy current losses O Copper losses O…

A: Electrical machines can be either DC or AC machines. Transformer is an AC machines with no rotating…

Q: Air gap 0.001 m I = 4 A Area - 0.003 m² N = 100 turns lcan = 0.16 m Find the magnetic flux for the…

A:

Q: A single-phase 764 V/ 1850 V, 54 Hz transformer has a maximum core flux density of 1 Tesla and an…

A: In this answer let us use the EMF equation of the transformer to find the number of primary turns as…

Q: 11) Which phenomenon is used in transformer to change the values of alternating voltages and…

A: Given that Which phenomenon is used in transformer to change the values of alternating voltages and…

Q: Three Phase Transformer 3 Three Phase Transformer 4 Transformer 2 Transformer 4 Transformer 1…

A: Four circuit connections are given in the question.Note: For all the transformers the primary side…

Q: 8A (L 2A

A: In source transformation, one source works at a time. When 8 A is OC , 9 ohm and 3 ohm resistors…

Q: For problem 1-3, consider Figure 1. 2:1 120 Vrms ooooo rellle D. 84.9 V 2. The dc voltage at the…

A: We need to analyse the given half wave rectifier circuit

Q: Question 6 What is phase angle of voltage induced in primary and secondary windings of transformers…

A: Given  Phase voltage of primary and secondary due to mutual flux is

Q: single phase transformer

A:

Q: A single-phase 685 V/ 1496 V, 55 Hz transformer has a maximum core flux density of 2 Tesla and an…

A: In this answer we will find the number of turns in the primary winding by using the emf equation as…

Q: What is the benefit of electrical transformers if there is a load and if there is no load?

A: Transformer: Transformer is a static electrical device which is used to transfer the power from one…

Q: In transformer, the hysteresis loss depends on, load current only frequency only flux density both…

A:

Q: The iron core in a transformer has the purpose of O decreasing the reluctance of the magnetic path…

A:

Q: In no load Phasor diagram of practical transformer, the iron loss current lc is with flux 0. O In…

A: In the question,  Fill the given blank from the given option.    In the load phasor diagram of…

Q: If the core loss of single phase transformer at full load is 98 W, then the core loss at 25% of load…

A: In the transformer core losses independent of load.   We can also say in the transformer core losses…

Q: At 50Hz operation a single phase transformer has eddy current loss of 100 W, Its eddy current loss…

A:

Q: A single phase 50 Hz core type transformer has rectangular cores 30 x 20 cm. and the maximum…

A:

Q: The distribution factor for 90 slots, 10-pole, 3-phase winding is A 0.90 B C D 0.895 0.959 0.978

A: Given: A 3-phase winding machine with, Slots = 90. Pole = 10.

Q: . How the load can be divided between the two transformers with unequal turn ratios.

A: Though the primary is linked to the supply and the voltage turns ratio is unequal, a circulating…

Q: A single-phase 693 V/ 1770 V, 57 Hz transformer has a maximum core flux density of 2 Tesla and an…

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

Q: 3. The maximum flux density in the core of 240/2400 V, 50 Hz, single phase transformer is I Wb/m? if…

A:

Q: Maximum flux density in the core of a 250 V/3000 V, 50 Hz single phase transformer is 0.6 Wb/m². RMS…

A:

Q: Calculate the primary leakage reactance of a transformer, supplying a load current of 10 A and 60…

A: Inductance = No. of turns×FluxCurrent Leakage inductance in primary = No. of primary turns×rms value…

Q: In small transformers, the total copper loss may vary from the rated output. % of O 0.2 to 0.6 O 0.5…

A: In this question , we wil find range of coper loss in small size transformers..

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.