A voltemeter, ammeter, and waltmeter are connected with suitable instrument transformers into a single-phase circuit as per figure 1, the follwing data was taken: current transformer ratio 5 to 1, potential transformer ratio 20 to 1, voltmeter 100v, ammeter reading 5 A, wattmeter 360W: Find the voltage : a) 2,000v, b) 20,000v, c) 200,000v, d) none find current: a) 25A, b) 250A, c) 2,500A, d) none find volt-ampaeres: a) 500 VA, b) 5,000 VA, c) 50,000 V

Q: Question 1: Determine the i, current for the below transformer. Given parameters: N1=1250 Turns,…

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Q: A 25 Kva ,2500/250 V single phase transformer is designed to have a induced voltage of 2.5…

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Q: Using the Ohmic Reactance method, Calculate: 1. Total impedance in 2 at 1000 V (use the table to…

A: 1) The 3-phase system is given as Since, prior to the fault, the system was in No-load condition.…

Q: During open circuit test of a transformer a) Primary is supplied rated voltage b) Primary is…

A: This is a problem of open circuit and short circuit test of transformer. The detailed explanation is…

Q: Q/A single-phase transformer with a capacity of 100 kVA and a voltage of 2000/400 and the equivalent…

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Q: From the three-phase transformer circuit in Figure 1, calculate the full load primary current in…

A: Given a 3- phase transformer circuit To calculate the full load primary current in ampere (A) and…

Q: 12. A single phase, 50kVA, 1000V/100V two winding transformer is connected as an autotransformer as…

A: Given Data:An auto transformer is constructed from a two-winding transformer with,Power rating of…

Q: Transformer 1 80KVA 2,300:230 v Ze"=0.0113+j0.0207 ohm   Transformer 2 50 KVA 2,300:230 v.…

A: GivenTransformer 180 kVA2300V:230VZe''=0.0113+j0.0207 ΩTransformer 250 kVA2300:230…

Q: 2. An inductive reactance of 8 N is connected in parallel with a capacitive reactance of 18 N; this…

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Q: 4.5 A 60HZ, 120/24 V, single-phase transformer has 300 turns in its primary winding, determine the…

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Q: 3) What would be the appropriate input voltage based on the following transformer specifications:…

A: Circuit diagram of transformer is given as,From the give  circuit diagram,Number of turns in primary…

Q: A 50 kVA ,11000/230V,50-Hz transformer has a high voltage winding resistance of 0.1Ω and a leakage…

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Q: age ratio? Pro B/ A 50 KVA, 2300/230 V, 60 Hz transformer has a high voltage winding resistance of…

A: Given data,Primary side voltage, Secondary side voltage, Frequency, High voltage side resistance,…

Q: b) A 4 kVA, 230/460 V transformer has the following test results: OC test: 230 V, 1.2 A, 85 W SC…

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Q: 7- Power transformers are generally designed for maximum efficiency around 75% of full load. 8- The…

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Q: 3. see following diagram, to mark all the rated voltage of all transformers. T3 T4 220kV T2 110kV…

A: Given, The trasformers diagram is shown below,

Q: A-60 kVA Transformer at full load the copper losses 1000 W while the core losses 500 W. What is the…

A: Given a single phase transformer with, Power rating, S=60 kVA. Copper loss, Pcu=1000 W. Core loss,…

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

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Q: In an eight stage Cockcroft Walton multiplier, the supply transformer secondary voltage in no-load…

A: Given information about Cockcroft Walton multiplier is The supply transformer secondary voltage in…

Q: Two generators operated in parallel in a generating station, as generator A has 20 KVA, 20KV, 5% ,…

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Q: CALCULATE the currents I1 and I2 of each of the transformers. CALCULATE the voltages V1 and V2, in…

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Q: Question 11 Not yet answered Marked ou stion Previous page step-up transformer, with turns ratio…

A: Given: Turn Ratio (a) = 12Primary side Voltage (V1) = 220v Find: Secondary Side Voltage V2= ?

Q: A 3.3kV, star connected alternator has a transient reactance of 1Ω per phase and negligible winding…

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Q: Step 1: Draw a wiring diagram for the schematic shown above. Do not energize!

A: We are given a schematic diagram shown below: We have to draw the wiring diagram for the above…

Q: The rating of transformer is a) kW b) kVA c) KVAR d) V

A: From the given options we need to determine that that rating of transformer is given in which units.

Q: 3. Solve the following: 4500 turns 300 turns 2k2 ) 50 VẠC Calculate all voltages and all currents in…

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Q: 3.) A 110 - KVA, 2200/110, GO He Has the pollowing cincuit constants: R₁ = 0.2252, R₂ = 0.5 mst. x₁…

A: Given information about a single phase transformer is written below. Rated kVA is S=110 kVA. Induced…

Q: Wright a discussion about Parallel operation of two 3-phase transformers (200-250 words)

A: In this question , we will write necessary conditions for parallel operation of three phase…

Q: A 4.5 kV/ 118 V, 50 Hz, single-phase transformer is to have an approximate E.m.f. per turn of 23 V…

A: The given data's are, E1=4.5 kV, E2=118 V, The electro motive force per turn is 23 V, Flux density…

Q: three transformers connected as indicated below to step the voltage down from 13,200V to 460V. a)…

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Q: An auto transformer has a primary voltage rating of 240V and a secondary voltage rating of 80V. If…

A: When an autotransformer windings are connected subtractive , simply the total voltage across both…

Q: An electromagnet consists of a coil with a laminated core assembly. This device takes 6 A when…

A: The electrolyte resistance, the current collector resistance, the active mass, and the transition…

Q: Solve the circuit in Figure 14 using the resistance and reactance values in Table 1 for the total…

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Q: Question 11 Not yet answered Marked ou estion step-up transformer, with turns ratio a 1/2, if we…

A: Given a step-up transformer with, Turns ratio, a=12. Primary side voltage, V1=220 V. Secondary side…

Q: If there is no load on the secondary coil of the transformers, what is the current value in the…

A: The explanation is as follows.

Q: An electricity generation and distribution system consists of an AC generator, a step-up…

A: Given i) generator power output = P 0=48.4 MW ii) Generatoris connected to step up transformer…

Q: A 1-phase transformer converts 120V to 208V.  It is rated for 3 kVA.  What is the lowest resistance…

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Q: isnt Transformer ration V1 / V2 i see the opposite is here V2 / V1

A: Asked to explain the previously solved answer the transformer ratio.

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

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Q: A 23 kVA, 2300/230 V, 60 Hz, step-down transformer has the following resistances and reactances: …

A: Given information about a single phase transformer is shown below.Rated kVA is  kVA.Induced EMF…

Q: Delta-Star Power Transformer 22kV 0.4 kV, Current on 0.4kV side is 1500A CTs on 0.4 kV have ratio of…

A: Given that a delta star 22/0.4kV power transformer. Given CT ratio on 0.4 kV side = 500:1 Current on…

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.