where a dashpot mechanism is employed in a constatant-current transformer, it is used as a counterweight to help balance the weight of the movable coil. a) true, b) false One can determine if there are harmonics in a circuit by calculating the ratio of trui RMS current to that of the circuit's averge current. a) true, b) false The neutral conductor of a 3-phase, 4-wire Wye connected transformer may have to be oversized in order to compensate for harmonics. a) true, b) fals

Q: Seconday winding of transformer is made-up of material. O insulated CRGO conductor O insulated…

A: Given Secondary winding of transformer is made by using which type of conductor

Q: An ideal transformer has a primary impedance of (10+j6) ohms, secondary impedance of (3+j5) ohms and…

A: It is given that: Zp=10+j6 ΩZs=3+j5 ΩNs=200 turnsϕm=75 mWb=75 ×10-3 Wbf=50 Hz

Q: Explain the operation of a single phase transformer at no-load. Draw the phasor diagram and…

A: Transformer is a static device which transfers power from one circuit to another circuit without…

Q: A star connected load with real impedance ZL= 1-j1 Ohm per phase is connected to the secondary of a…

A: The given data about a three phase YNyn0 connected transformer is: Star connected load is connected…

Q: The two winding transformer and the autotransformer of the circuit shown in Figure are ideal.…

A: In this question,  Both transformers are ideal so no losses.  We know in transformer I1/I2= N2/N1

Q: 6. A single-phase, 225-kVA, 460/120-V transformer has 6% impedance and 96% efficiency. Find its…

A: In this question we need to find series R and X of the given transformer

Q: 1. Consider a single-phase transformer with the following specifications. 20 kVA, 1200 V/120 V, 60…

A: NOTE- As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…

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

A:

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: A single phase, 60 Hz ,1000 kVA transformer for 14000 / 200V ratio has a maximum flux density of 2.0…

A: In this question, we need to determine the inductance of the winding if Magnetizing current Im =…

Q: Q1// What is the purpose of conducting (O experiments (o.c) and (s.c) on asingle phase transformer?

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

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: Transformer 1) Enumerate the way/s by which the voltage of the large coil may be: a) increased (AC…

A: The voltage in a coil is given by  V= -L(di/dt). So for an ac source the voltage of a coil is…

Q: 1. A transformer transforms. (a) frequency (b) voltage (c) current (d) voltage and current. 2. Which…

A:

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: A single-phase transformer has a voltage ratio on open circuit of 7900/660 V. The primary and…

A: Transformer: It is a static device that is used to step up and step down the voltages.

Q: A 22.5-kVA single-phase transformer is tested with a true-RMS ammeter and an ammeter that indicates…

A: Given data:Transformer capacity =22.5True-RMS reading =94APeak reading =204A

Q: A single phase transformer operates at 50 Hz, 200 V rms power supply. Find the number of turns in…

A: This question belongs to electrical machine . It is related to single phase transformer . It is…

Q: 5- The most effective factor on the leakage inductance of an iron-cored coil is: a) The geometry of…

A: The leakage inductance of the iron cored coil is due to the fact that the primary in not properly…

Q: For the transformer below determine the magnitude for the induced secondary voltage if: Ep = 1kV Np…

A:

Q: Ql-phase step down transformer 1250 KVA, 11000/2200 V, 50 Hz . The resistance /phase and leakage…

A: Given: KVA=1250, V1/V2=11000/2200Primary impedance=0.78+j4.8ΩSecondry impedance=0.01+j0.06Ω

Q: There is no magnetic core loss in an ideal transformer Select one: O True O False

A: The explanation is as follows.

Q: an ideal transformer circuit is shown in Figure Q4(a). Its primary and secondary turns are 400 and…

A:

Q: A 150 kVA, 2500/250 V, 50 Hz, single phase transformer has a no-load current of 0.75 A and a core…

A:

Q: A single phase 200/200 V ,55HZ transformer has an efficiency of 98% at full- load. Determine the…

A: for transformer output frequency = input frequency. and voltage regulation = no load voltage-full…

Q: Question In a single-phase transformer, the total iron loss is 2500 W at nominal voltage of 440 V…

A: Given- A single-phase transformer, Total iron loss P1=2500 W, Voltage V1=440 V, Frequency f1=50 Hz,…

Q: The purpose of using oil in transformers is due to:

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

Q: Draw the phasor diagram of a single phase transformer circuit.

A: As we take 1 phase Transformer with exact equivalent circuit and we have draw the phasor diagram by…

Q: A single phase 60 Hz transformer has its core volume of 1.5x10-3 cu m. The maximum flux density is…

A: Given data, Maximum flux density Bm=1 T. Volume of core V=1.5×10-3 m3 Hysteresis constant  of core…

Q: A power company supplies power to a small town that is 10 km away from the nearest substation. The…

A: The above question is based on the power system transmission network.To transfer impedance from one…

Q: In the single-phase, three- winding, transformer, the primary current is equal to lo at the…

A: In this question we need to choose a correct option

Q: For the circuit shown , calculate (a) iΔ and vo, and (b) show that the power developed equals the…

A: these circuit has dependent and independent both sources.This can be easily solved using KVL(…

Q: 150 kVA, 2800-240 V, 50 Hz transformer. Regis = 0.0082N , Xeq.Ls = 0.0223N Step down transformer…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…

A: Transformer: A transformer is a electrical equipment whose main purpose is to transfer electrical…

Q: A non-ideal 1-phase transformer has turns ratio 5:1 with 120Vac primary.  The primary impedance is 1…

A:

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

A: In this question we need to choose a correct option.

Q: VOLTAGE STEP UP THE VOLTAGE + TRANSFORMER ^ V Done

A: Voltage transformer are used to to bring voltage down to an acceptable level used by protective…

Q: The turns ratio of a particular transformer is less than 1. Where would you expect to see this type…

A: In this question, we need to choose the correct option. We need to determine the place where turn…

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.