If a transformer ratio is 4:1 and is connected to a 480v source, what is the secondary voltage of the source voltage is decreased by 7.5v

Q: QUESTION 2 A single phase 600v/120v transformer has a load of 30 ohms resistive and 20 ohms…

A: Given data, Voltage rating is given 600 V/ 120 V. Load impedance ZL=30+j20 Ω.

Q: A step up transformer has more number of turns in the primary side. Select one: O True O False

A: In power system, there are various different voltage levels of working. Transformers are used to…

Q: In the experiment No.4, the short circuit test is performed in the single phase transformer in order…

A: Correct option is copper losses short circuit test of a single transformer gives copper losses in…

Q: What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a…

A: If you are having doubt in any step please comment here. Thank you

Q: In the transformer if the losses are less then

A: Need to find if in the Transformer losses are less then what

Q: The power input to a mains transformer is 200 W. If the primary current is 2.5 A, the secondary…

A: Given values are - Pin=200WI1=2.5AV2=2Volt

Q: The Scott-T transformers are used to provide a variable voltage output. Select one: O True O False

A: Choose the correct option The Scott T operation are used to provide a variable voltage output.  Is…

Q: The peak voltage rating of the transformer secondary for a voltage doubler that produces an output…

A:

Q: V1 240V / 50HZ T1 if V out =9v find the transformer equivalent

A: The solution is given below

Q: In the short circuit test to be made on the high voltage winding of the 220 / 24V 315VA transformer,…

A: Given data, Volt-ampere rating is, S = 315 VA. Primary Voltage, Vp = 220 V. Secondary Voltage, Vs =…

Q: 45 The 110V output of a transformer is applied to a 220 resistive circuit, causing, 0.22Amps to flow…

A: Given: Secondary voltage, V2=110 V Resistive load at secondary, R2=22 Ω Primary current, I1=0.22 A

Q: In the experiment No.4, the open circuit test is performed in the single phase transformer in order…

A: Open circuit test is conducted on low voltage side of transformer at rated voltage and rated…

Q: .A 1Ø 2,000kVA transformer has a primary voltage of 12kV, and a secondary voltage of 2.4kV What is…

A: The objective of this question is to calculate the full-load current of the primary and secondary…

Q: * For the following circuit if the secondary voltage of the transformer is 20V max, the output…

A: We need to select correct option for output voltage for given circuit

Q: A transformer has a turns ratio of 2:1. What is the peak secondary voltage if 120 Vrms is applied to…

A: Brief description: Here they have given the turns ratio of the transformer as 2 : 1. Turns ratio is…

Q: 5. What is the turns ratio (n) of a transformer that has a primary voltage of 600 V and a secondary…

A: For a transformer,  (V1/V2) = (N1/N2) = (I2/I1)

Q: Which of the following is true for secondary current in a step-down transformer? A) is less than the…

A: Transformer is a device which will used to step up or step down the power supply     Depending on…

Q: Determine the percentage voltage error of a potential transformer with the system voltage of 11,000…

A: Given, system voltage or primary voltage of potential transformer=11000v Measured Secondary…

Q: In a relation to a transformer the ratio 6/1%3B indicates that O Primary current is 6 times greater…

A:

Q: Load Resistance used in ohms Primary coil turns (Np) Secondary coil turns (Ns) Actual Voltage Gain…

A:

Q: A 25 KVA transformer supplies a load of 12 kW with a power factor of 0.6 lagging. Find the…

A: Transformer: The transformer works in the principle of electromagnetic induction. The transformer…

Q: What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a…

A: GIven the maximum load current and secondary voltage and required to find the kVA rating.

Q: A 10 KVA step-up transformer having a turns ratio of 1:5 has a primary voltage of 2.5 kV. Calculate…

A: A Power S= 10 KVA step-up transformer  a turns ratio N1:N2= 1: 5 has a primary voltage Vp=  2.5 kV.…

Q: A transformer works at 2 KVA with a primary voltage of 96 V. If the load voltage is 230 V ,then the…

A:

Q: Write ‘T’ for True and ‘F’ for False The phase shift angle of a Δ-Y transformer can only be 30⁰

A: In this question we will find phase shift between delta star transformer..

Q: The primary current of a 64 kVA, 1705 V/ 145 V, 50 Hz, single-phase transformer is 3.75 A 37.54 A…

A: primary current of a 64KVA, 1705V/145V, 50Hz, single phase transformer is:

Q: Resistance

A:

Q: voltage of 120 volts is applied to the primary of a step-up transformer with a winding ratio of 1:5…

A: In this question we will find transformer primary current with given data...

Q: if three-winding transformer is connected as in figure bellow , the value of the output voltage Vo…

A: Fig: Given circuit    Although in the secondary side of the transformer current…

Q: A transformer works at 6 KVA with a primary voltage of 82 V. If the load voltage is 235 V ,then the…

A: Given: A transformer works at, Rated apparent power, S=6 kVA. Primary voltage, V1=82 V. Secondary…

Q: The transformer ratings are usually expressed in KVAR Select one: O True

A: The explanation is as follows.

Q: 3- A 1 phase, 100 kVA, 11000/2200V, 60Hz transformer has the following parameters. RHV = 6.0 RLV =…

A: We know, secondary resistance  is referred to primary is, R'2= ( R2 /  K2 ) Secondary reactance  is…

Q: transducer has the positive temperature coefficient. If the core loss of single phase transformer at…

A: We need to tell about the positive temperature coefficient transducer and core losses at half load .

Q: In transformer the short circuit test is used to determine the copper loss.

A: The copper loss are due to the resistance of the wire in the primary and secondary windings. In…

Q: AMohetone on ng uestion A transformer has 197 turms on the primary coll and 530 tums on the…

A: We need to find out current on secondary side of transformer .

Q: Question No.5 A current transformer has a phase error of +5 degree. The phase angle between the…

A: Given: A current transformer has, Phase error, θ=+5°

Q: Determine the voltage in the secondary as the case may be and mark the transformers with the…

A: The given figures of the ideal transformers are shown below. We need to determine the voltage in…

Q: A 2 KV/250 V transformer has 50 turns on the secondary winding, then the number of turns on the…

A: ratio of primary to secondary turns given by N1/N2= V1/V2 N1/50=2000/250 N1=8 x 50 N1=400 option a…

Q: A transformer works at 3 KVA with a primary voltage of 86 V. If the load voltage is 225 V.then the…

A:

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.