A three-phase balanced load is connected in star, each phase of the load has an impedance of 1092, the supply is 400V 50Hz. Calculate :- wwwwwwwwww 1. Calculate the current in each phase (lp) 2. Power in one phase and power in all phase

A three-phase balanced load is connected in star, each phase of the load has an impedance of 1092, the supply is 400V 50Hz. Calculate :- wwwwwwwwww 1. Calculate the current in each phase (lp) 2. Power in one phase and power in all phase

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.23P: A single-phase source has a terminal voltage V=1200volts and a currentI=1530, which leaves the...

See similar textbooks

Related questions

Q: a) why is there a wattmeter reading when the load is purely inductive

A: Given that a) why is there a wattmeter reading when the load is purely inductive b) why is there no…

Q: 3- phase power don't we need to multiply with 3? also Vt=13.1 KV, so shouldn't it be 13.1e3? in the…

A: The three-phase power can be calculated by the formulas shown below:…

Q: Three phase power supply load R is 1699 VA, S is 15584 VA and T is 12818 VA. Find (a) the…

Q: Four conductors meet at a junction. the current are i1= 5sinwt, i2= 3sin(wt + 90) and i3=…

A: The solution can be achieved as follows.

Q: 1. From the given circuit, take V₁ = 240, Z₁ = 20 - j3 ohms. Find the phase currents and line…

A: In this question, We need to determine the phase current, line current and complex power? We know…

Q: There are two loads connected in parallel and powered from a 7200-V source. The first load is 50-kVA…

A: First calculate active and reactive power of the individual loads. Total power from source is sum…

Q: There are two loads connected in parallel and powered from a 7200-V source. The first load is 50-kVA…

Q: Three single phase loads are connected to the 400 V, three phase lines, 60 Hz. Load 1 operating at 3…

Q: An 11 KV generating station has four identical 3-phase alternators A,B,C and D and each of 10 MVA…

A: Here, Every generator is having a reactance of 0.12 Pu G1∥G2=0.12∥0.12=0.12×0.120.12+0.12=0.06…

Q: A three phase load is connected in delta to a three phase 440 V, 50 Hz mains. An inductor of 100 mH…

A: Solution: A three phase load is connected in delta, voltage V=440 v, f=50 Hz, Inductor L= 100mH…

Q: In the circuit in the figure; L1 load draws 15 kVA with lagging power factor 0.6. The L2 load draws…

Q: From the given circuit, take V₁ = 240, Z₁ = 20 - j3 ohms. Find the phase currents and line ZL…

A: In this question, A 3phase balance source supply to 3 phase balance load. We need to find the…

Q: Three single-phase transformers are connected into a three-phase bank. The primary is connected as a…

A: In this question we need to find a phase voltage of primary.

Q: Consider the following balanced three-phase system. Determine vi(t) and i2(t). j0.102 V₁ = 100/0°V…

A: Three phase balanced system:Since all impedances are equal then Delta to star transformation:- Star…

Q: If a load is leading, which statement is NOT true? a. The load is capacitive. b. It’s reactive…

A: We are given a MCQ and we need to select the correct option out of four given option.

Q: The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical…

A: Given: Load-1:P1=950Wcosϕ1=0.5 LaggingLoad-2:P2=1.14Wcosϕ2=1Load-3:P3=760Wcosϕ3=0.5 leadingline…

Q: A star connected three phase alternator supplies power to a delta connected resistive load. The…

A: The figure for star-connected three-phase alternator with delta connected resistive load is:

Q: A three – phase load of 2.0 MW with P.F of 0.8 lead is connected to a 12.46 kV grid. Find the…

Q: A voltage of 200 253"8' is applied across to impedances in parallel. The values of impedances are…

A: Given data, Voltage V=200∠53.80 Impedances are given Z1=12+j1000 Ω, Z2=10-j20 Ω

Q: 5. The figure below shows two star connected loads with three phase power. The voltage source is…

Q: The actual impedance of a load is 30 OHM. The per-unit impedance of the load is 0.5 pu when Base…

A: In this answer let us try to find the base power used in order to get the given per unit impedance…

Q: Three single phase loads are connected to the 400 V, three phase lines, 60 Hz. Load 1 operating at 3…

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

Q: An 11 kV generating station has four identical 3-phase alternators Gl, G2, G3 and G4 each of L0 MVA…

A: Here, Every generator is having a reactance of 0.12 Pu G1∥G2=0.12∥0.12=0.12×0.120.12+0.12=0.06…

Q: Draw Wye- Delta three phase transformers connection ( no-load and full-load) in Lt-spice

Q: + 120/45° V rms B

Q: The figure shows a 3-phase bala Time left 1:06:30 sequence electrical system. Vcn = 200 /0° Vrms.…

A: Given,

Q: The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical…

A: Given data:Load - 1 :P1=950Wcosϕ1=0.5 Lagging Load-2:P2=1.14Wcosϕ2=1 Load-3:P3=760Wcosϕ3=0.5…

Q: In a delta connected load Select one: O a. Phase and line currents are not equal O b. Phase current…

A: In Delta connection Phase Voltage equal to line voltage Phase current = (line current/√3) Hence…

Q: Given that Vin 110230° V find Vanand Ven assuming a positive (abc) sequence. %3D

Q: I. Z The three-phase circuit shown in Figure 1 is composed of a balanced three-phase A-connected…

Q: Match the following Each load will be connected between two phase wires Choose... Power measured by…

A: Given, Match the following Each load will be connected between two phase wires Power measured by…

Q: In three phase power measurement, current coil is connected in series and potential coil is…

A: We know that Electrical power is measured with a wattmeter. A wattmeter consists of a current coil…

Q: The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical…

A: Given data:Load -1 :P1=950Wcosϕ1=0.5 Load-2:P2=1.14Wcosϕ2=1 Load-3:P3=760Wcosϕ3=0.5 line voltage,…

Q: A balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil…

Concept explainers

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.

Question

A three-phase balanced load is connected in star, each phase of the load has an
impedance of 1092, the supply is 400V 50Hz.
Calculate :-
wwwwwwww
1. Calculate the current in each phase (lp)
2. Power in one phase and power in all phase

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

In a certain three-wire Y-connected generator, the phase voltages are 2 kV. what is the phase to phase voltage?
No Handwriten please
The actual impedance of a load is 30 OHM. The per-unit impedance of the load is 0.5 pu when Base Voltage is 600 V and Base Power is O 6000 VA O 2000 VA O 4000 VA 8000 VA
Three single phase loads are connected to the 400 V, three phase lines, 60 Hz. Load 1 operating at 3 kVA, 0.8 power factor lagging and is connected at line "a" and "b", Load 2 is a 5 kW heater and is connected at line "b" and "c", Load 3 is 4.5 kW machine that operates at a power factor of 0.6 lagging and is connected at lines "c" and "a". a. What are the line currents Ia, Ib, and Ic in Amperes (in Polar form) b. What is the total real power in W. c. Total Reactive Power. d. Total Apparent Power. e. What is the total power factor.
Three single phase loads are connected to the 400 V, three phase lines, 60 Hz. Load 1 operating at 3 kVA, 0.8 power factor lagging and is connected at line "a" and "b", Load 2 is a 5 kW heater and is connected at line "b" and "c", Load 3 is 4.5 kW machine that operates at a power factor of 0.6 lagging and is connected at lines "c" and "a". a. What are the line currents Ia, Ib, and Ic in Amperes (in Polar form) b. What is the total power factor.
The figure shows a 3-phase bala Time left 1:06:30 200 /00 Vrms. sequence electrical system. Vcn Vbn %3D al Balanced (-) sequence 100 so a 2000 Vms Select one: O a. 200 /-120 Vrms O b. 200 v2 /0 Vrms O C. 200 /0 Vrms O d. 200 v2/-120 Vrms e. 200/120 Vrms
Match the following for each sentences
Match the following Each load wilI be connected between two phase wires Choose... Power measured by two wattmeter method Choose... Each load will be connected between a Phase wire and Neutral wire only unbalanced Load Both Balanced and Unbalanced Load Current in the neutral wire is zero Star connection Junction Point where one end of all three phase loads joined together Delta Point Delta connection Only Balanced Load Series Connection Neutral point
A star connected three phase alternator supplies power to a delta connected resistive load. The alternator has a line voltage of 480V. Each resistor of delta load has 8 ohm of resistance. Find the following values. Line voltage of the load (VL(load)) Phase voltage of the load (VP(load)) Phase current of the load (IP(load)) Line current delivered by the alternator (IL(alt)) Phase current of the alternator (IP(Alt)) Phase voltage of the alternator (VP(Alt)) True power
A three phase load is connected in delta to a three phase 440 V, 50 Hz mains. An inductor of 100 mH is connected in series with a resistance of 30 ohm in each phase of the load. Then find (a) phase voltage (b) phase current (c) line current (d) power factor.
In a delta connected load Select one: O a. Phase and line currents are not equal O b. Phase current is zero Oc. Phase and line voltages are equal O d. Phase and line voltages are not equal
5. The figure below shows two star connected loads with three phase power. The voltage source is 120Z0°. The loads are Z₁ = 10 + j4 № and Z₂ = 2 +j3 №. The cables are negligible. Calculate: a) the line and phase current. b) the real power from the source. c) the reactive power of the circuit. Is V N Z₁ Z₁ Z₁ Z₂ Z₂ N N Z₂