A transformer has an output of 750 VA. The primary voltage is 120 V. What is the primary current?

Q: A transformer primary has 320 turns of wire and the secondary voltage measures 160 V when 40 V is…

A: Given: A transformer has, Primary turns N1=320. Secondary voltage V2=160 V. Primary voltage V1=40 V.…

Q: 1. Calculate the voltage output by the secondary winding of a transformer if the primary voltage is…

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Q: 56. A transformer has a turns ratio of 5. If a 100-2 resistor is connected across the primary, what…

A: Solve the problem

Q: A 200V/20V, 400 VA transformer will be connected as an auto transformer and will be used to convert…

A: Transformer is a constant power device. If the voltage is increased consequently current is…

Q: If copper loss of a transformer is at 7/8" full load is 4500 W, then what will be its full load…

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Q: 4. The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the…

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Q: If a transformer is only 75% efficient with a primary voltage of 100V. If it has primary windings of…

A: Given,The number of turns in primary winding is NP=500The number of turns in primary winding is…

Q: A transformer has 400 W as iron loss at full load. The iron loss at half full load will be O 400 W O…

A: Given: A transformer has iron loss at full load, Pifl=400 W Iron loss at half load, Pihl=? Load…

Q: A 2 KVA transformer has iron loss of 150 W and full-load copper loss of 250 W. The maximum…

A: Given a 2 kVA transformer has, Iron loss, Pi=150 W Full load Cu loss, Pcu=250 W

Q: Current Transformer is used to step up the current of power system. Select one: True

A: Current transformer is a step down transformer. It always step down the current.

Q: 404. If the output power of a transformer is 600 W whereas the losses are 200 W, the efficiency of…

A: Given: Output power of transformer, Po=600 W. Losses = 200 W.

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: Calculate the efficiency of a 20 kVA transformer when operated at full load with a power factor of…

A:

Q: 50-kVA, 13,200/480-V distributed transformer, the no-load current will be around Select one: O a.…

A: No loade current is always (0-5%) ofRated currentif transformer iscase1 single phaseH.V…

Q: . A transformer with 800 primary turns and 200 secondary turns is supplied with a 100 V ac supply.…

A: E2E1=N2N1=KK= transformation ratio According to question: Given: N1=800 (primary turns) N2= 200…

Q: A transformer is used to reduce the voltage of a supply from 120V a.c to 12V a.c. Explain how a…

A: Given, Transformer having Primary voltage (V1) = 120 V Secondary voltage (V2) = 12 V

Q: Question 1: What is the power observed in the energy analyzer when the rated voltage(U1) is applied…

A: Note:- According to Bartleby guidelines we are supposed to answer one question at a time kindly…

Q: A transformer has 100 turns on the primary and 400 turns on the secondary. The secondary supplies 20…

A: Given: Primary turns, N1=100 Secondary turns, N2=400 Secondary voltage, V2=20 V Load on secondary…

Q: 1002 2. 20:5 a) find B and ĥ b) if the transformer is put in bachwords find Ps and P

A: a) Peak value of the supply voltage, Vp= 10V RMS value of the supply voltage,  Vr=102    =7.07V

Q: 2,99 A 200/100 V, 50 Hz transformer is to be excited at 40 Hz from the 100 V side. For the exciting…

A: According to the question we have to find the value of applied voltage.

Q: 3. Calculate the voltage output by the secondary winding of a transformer if the primary voltage is…

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

A: Given,  A transformer has turns ratio is 4:1 Primary source voltage (Vp)= 480 volts

Q: 44/ The efficiency is maximum in a transformer when no load losses = Iron losses  Select one: True…

A: Need to find true false for given Transformer statement

Q: A 2 kVA transformer an iron loss of 150 watts and full load copp 6, loss of 250 watts. The maximum…

A: Iron loss, Pi = 150 W Copper loss, Pc = 250 W

Q: Calculate the efficiency of a 20 kVA transformer when power factor of 1. The full load copper loss…

A: We need to find out efficiency of transformer .

Q: A transformer converts 460 V into 230 V. The power output is 2.3 kW, how much current is drawn into…

A: Given: A transformer converts 460 V into 230 V. V1=460 VV2=230 V The power output is 2.3 kW.…

Q: → 1. 120 Vms is applied to the primary of a power transformer having a 1:4 step-up ratio. What is…

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Q: An ideal transformer having a turn ratio of 5:1 has a primary voltage of 1 kV and a load of 2.5 kW;…

A: In this question we need to find the value of secondary current.

Q: A  25KVA Transfomer has a primary voltage of 480 V and a 4:1 turns ratio.  What is the secondary…

A: KVA rating of transformer=25KVA Primary Voltage=480V turns ratio=4:1 Primary VoltageSecondary…

Q: A transformer has a turns ratio of 1:6. The primary current is 18 amperes. What is the secondary…

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Q: 3. A transformer has an input current and voltage of 5A and 11kV respectively. If the efficiency of…

A: 3) Given : A transformer has  input current (Ip) = 5A and input voltage (Vp)= 11kv  If the…

Q: The O.C of a 5 kVA 200/400 V transformer. In the test, 72 W of power was used, supplying 200 V to…

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Q: A Transformer having 254 V in the primary with a primary current of 10 A. For a secondary Voltage of…

A: Given :    N1 = Primary Windings Turns Of The Transformer    N2= Secondary Windings Turns of the…

Q: A Transformer having 1300 Primary turns connected to a 256 V a.c. supply. For a secondary Voltage of…

A:

Q: In a 75 KVA, 2000/200 V power transformer, the iron and full load copper losses are 80 W and 360 W…

A: In this question,  What is efficiency of the transformer and fraction of the load.  Efficiency =…

Q: A step-down transformer delivers 5 V @ 2 A. If the pri- mary is connected to a 120 Vac source, what…

A:

Q: Current Transformer is used to step down the current of power sy Select one: O True O False

A: Current transformer consists of large number of turns on primary side and few turns or single turn…

Q: A transformer has a turns ratio of 2.5:1. The primary voltage is 208V the secondary current is 18A…

A:

Q: A transformer has a primary to secondary turns ratio of 1:15. Calculate the primary voltage…

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Q: The secondary coil of a transformer has 100 turns and secondary voltage is 10V. If the turns ratio…

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Q: me the circuit in figure 1(a) and calculate the reading of dc voltmeter if the io of step down…

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Q: The primary current of a 67 kVA, 1579 V/ 153 V, 50 Hz, single-phase transformer is 42.43 A 4.24 A…

A: Primary current of transformer of 67KVA and voltage rating given Power S= VI

Q: transformer has a turns ratio of 1:6 The primary current is 18 A. What is the secondary current

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Q: A transformer has 600 primary turns connected to a 1.5 kV supply. Determine the number of secondary…

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Q: A transformer is rated for 98% efficiency if 1500W is measured on the primary side. How much power…

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Q: Calculate the load current and load voltage in the transformer circuit. (2390/710 turns), 350 ohm,…

A: Given data, N1=2390N2=710V1=28V R=350Ω

Q: The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the…

A: A primary winding is the winding of a transformer that is connected with and gets energy from an…

Q: device may be used for extending the range of voltmeter. O shunts O voltage transformer O series…

A: Given  Device used to extending the range of voltmeter

Q: 13. A transformer has a turns ratio of 5. If a 100-2 resistor is connected across the secondary,…

A: The turns ratio given in the question is: N1N2=51 The resistance referred to primary can be…

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.