In polyphase generation of power simultaneous multiple voltages are generated with a phase angle of 30 Select one: True False
Q: The power Transmission line is a three-phase supply. Select one: True O False
A: The power transmission line is used to transmit the electrical energy from generating source/plants…
Q: In a star connected system the phase angle between line and phase voltage is 30 degree. Select one:…
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Q: In the phasor diagram of balanced star connected system the angle between VR and VRy is 30 degree.…
A: As from the phasor of balanced star connected system, Here we can see that angle between VR &…
Q: In Industry, three Inductive loads, each of resistance R = 26 ohms and inductance L= 0.08 H are…
A: Given, a three inductive load delta connected system having, Resistance, R = 26 ohms Inductance, L =…
Q: In a circuit, the equation for resistance voltage and current are given byv = 141.4 sin (wt – 4) and…
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Q: 1. inductor; compute the power of J3 ohm. Use Nodal analysis Calculate the current in J3 ohm Repeat…
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Q: Three Impedances each of (12- j16)N are connected in mesh across a three-phase 410V ac supply.…
A: we need to determine phase current line current real power reactive power
Q: A non-reactive resistance of 60 Ω is connected in series with a 36 µF capacitor in each phase of a…
A:
Q: th 4.Z th According to maximum power transfer theorem maximum power is equal to Pmar = Select one:…
A: We need to tell about maximum power transfer.
Q: The real power consumed by a single phase pure capacitive load is equal to zero. Select one: O True…
A: In a purely inductive or a purely capacitive circuit that contains reactance, (X) the current will…
Q: A balanced 3-phase load of 30 MW is supplied at 131.1 kV and 0.85 pf lagging by means of…
A: Given a balanced 3-phase load of 30 MW is supplied, Receiving end voltage, VR=131.1 kV Power factor,…
Q: In polyphase generation of power simultaneous multiple voltages are generated with a phase angle of…
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Q: A resistor in series with a 138microfarad capacitor, is connected to a 60HZ source. If the voltage…
A: From given capacitor value and voltage across the capacitor capacitor calculate current through…
Q: 6) In a 3- phase 440V, 60 H2. AC supply system a 3- phase load s connected in WYE, configuration.…
A: In this question we need to find a line current, phase current , active power and apparent power.
Q: You have a three-phase Y-connected load where each branch consists of a 3 [W] resistor and a j4 [W]…
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Q: An industrial facility consumes 25 MW (three-phase) at 0.80 power factor lagging. The voltage at the…
A: We are authorized to answer three subparts at a time. Since you have not mentioned which part you…
Q: In a power system, which one of the following is not a state variable: Select one: O a. None of…
A: Most of human energy requirement is meet by generating electrical energy. Once electrical energy is…
Q: A balanced wye-connected system has a phase voltage of 200V RMS and impedance of 1000L20°. Calculate…
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Q: In Industry, three Inductive loads each of resistance R = 33 ohms and inductance L = 0.11 H are…
A: A star connected load has, Per phase resistance (Rph)= 33 ohm Per phase inductance (Lph)= 0.11 H…
Q: Example23/ Two transformers (4) are designed to match a line having a Z. 3002, ZR : 750 find Stable…
A: Given: Zo= 300 ohms ZR= 75 ohms Formula: Zo2/ ZR
Q: BA series-connected load draws a current i(t) = 4 cos(315t + 10°) A when the applied voltage is v(t)…
A: According to question we have to calculate the value of Apparent power, power factor and value of…
Q: 4. Calculate the real or reactive power delivered to each passive element. Also, determine the real…
A: Given
Q: Each phase of a balanced three-phase -connected load consists of a 200 mH inductor in series with…
A:
Q: Find the net Active, Reactive and Apparent powers.
A: Active Power- It is power utilized by the load. Reactive power- It is the power which remains within…
Q: A balanced delta-connected load is supplied by a 60 Hz 3-phase source with a line voltage of 240 V.…
A: Given: Line Voltage V=240 V Frequency = 60 Hz Load power/phase = 6 kW = 6000 Watts Power factor…
Q: Reactance of a circuit is always expressed as real number and comprised the imaginary part of the…
A: In the question, Choose the correct option. Impedance Z= R+jX Where R resistance X Reactance
Q: In a star connected system, the three phase currents are mutually displaced by 180 degree. Select…
A: Three phase Star connected system
Q: The balanced system below has a phase voltage of 120 V. It supplies a balanced load Z1 that has…
A: In this question we need to find a total reactive power and true power of the given three phase…
Q: Problem: A 25 Q resistor is connected in parallel with an inductance of 2.5 mH across a Vrms = 75<0°…
A: Given:
Q: From the circuit below, if R = 58, determine the maximum power absorbed by the load impedance ZL…
A: To find the maximum power absorbed by the load impedance ZL
Q: Determine the average power delivered to each of the boxed impedances in the circuit below if V, =…
A: Power in AC circuits has two components. Here, S is called apparent power (in VA’s), P is termed as…
Q: For the given circuit calculate the maximum power that can be transferred from the circuit to the…
A: In the given circuit, Find the maximum power transfer to the load impedance ZL For maximum power…
Q: A balanced delta connected load contains 10 2 resistor in series with a 20 mH inductor in each…
A: Impedance: It is a measure of the overall opposition of AC current in the circuit and it is…
Q: In Industry, three Inductive loads each of resistance = 32 ohms and inductance L = 0.16 H are…
A: According to question: a) Phase impedance…
Q: Vs = 11720 V; RL = 50 2; jXL = j86.7 2. Calculate the complex power and correct the power factor to…
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Q: 3 times greater than the power dissipated in sta In 3-phase system, the power dissipated in delta…
A: In this question , we will find relation between power in star and delta connection..
Q: 5. Three impedances of (1+j5)N, (1+j12)N and (2+j3)N are connected in star to a 3-0 system with line…
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Q: A balanced 3-phase load of 30 MW is supplied at 142.4 kV and 0.85 pf lagging by means of…
A: Given full load receiving end voltage Vfl = 142.4 KV and sending end voltage = 141 KV line constant…
Q: In Industry, three Inductive loads, each of resistance R = 30 ohms and inductance L = 0.13 H are…
A: inductive reactance Xc = 2*pi*fL given frequency f = 50 Hz and inductance L = 0.13 H impedance of RL…
Q: In polyphase generation of power simultaneous multiple voltages are generated with a phase angle of…
A: in poly phase generation of power simultaneous multiple voltages are generated with a phase of 30…
Q: 4. A balanced, 3-phase, 132 kV line supplies power to a balanced load that draws 70.7 MVA at 0.707…
A: Line voltageVL=132 kVLoad SL=70.7 MVAPower factor cosϕ1=0.707 laggingThe desired power factor is…
Q: lowing neutral is solidly grounded. positive sequence generated voltage= 120°p.u positive sequence…
A: From the given problem we have ER1=1 pu IR1=1.22 pu Z=0.043
Q: Three Impedances each of (6 - j28)2 are connected in mesh across a three-phase 415V ac supply.…
A: Phase current=phase voltgeimpedance. line current=3×phase current active power=3×I2R. reactive…
Q: A non-reactive resistance of 60 Ω is connected in series with a 36 µF capacitor in each phase of a…
A:
Q: Given a mesh connected system with reactive factor of 60 percent and true power of 2,500 kW.…
A: We need to find out reactive power
Q: For the given circuit calculate the maximum power that can be transferred from the circuit to the…
A: In this given circuit, Find the maximum power transfer to the load. For maximum power transfer…
Q: Three identical loads having an impedance of (8.66 + j5) are connected in wye across a balanced…
A: Given: Impedance, Z=(8.66 + j5)Ω Line voltage, VL=330V
Q: H.W: Each phase of a balanced three-phase -connected load consists of a 200 mH inductor in series…
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Q: A coil of wire having a value of (6 + j9) ohms is connected in series with a capacitive reactance…
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Q: In Industry, three Inductive loads each of resistance R= 24 ohms and inductance L = 0.13 H are…
A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…
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- Figure 2.26 shows three loads connected in parallel across a 1000-V(RMS),60Hz single-phase source. Load 1: Inductive load, 125kVA,0.28PF lagging. Load 2: Capacitive load, 10kW,40kvar. Load 3: Resistive load, 15kW. (a) Determine the total kW, kvar, kva, and supply power factor. (b) In order to improve the power factor to 0.8 lagging. a capacitor of negligible resistance is connected in parallel with the above loads. Find the kvar rating of that capacitor and the capacitance in F. Comment on the magnitude of the supply current after adding the capacitor.Three loads are connected in parallel across a single-phase source voltage of 240V(RMS). Load 1 absorbs 15 kW and 6.667 kvar; Load 2 absorbs 3 kVA at O.96PF leading; Load 3 absorbs 15 kW at unity power factor. Calculate the equivalent impedance, Z, for the three parallel loads, for two cases: (i) Series combination of R and X, and (ii) parallel combination of R and X.Find the complex power for the following: Vrms= 200 ∠ 30∘ V, Z= 40+ j60 Ω
- Question text Three Impedances each of (6 – j26)Ω are connected in mesh across a three-phase 425V ac supply. Determine the phase current, line current, active power, reactive power and apparent power drawn from supply. phase current (Ip) , Line current , real power , reactive power , Apparent powerThree-phase, 50 Hz, 132 KV power system of equivalent impedance 10+j35 12 with load 110+j29 12. Draw the corresponding power flow diagrams with total values. Use one-digit approximation.A series generator delivers a power of 6.25kW and a load resistance of25Ω. If RA=0.05Ω and RS=0.025Ω, calculate the generated emf.
- A non-reactive resistance of 60 Ω is connected in series with a 36 µF capacitor in each phase of a star-connected load.The load is connected to a 260 V, three-phase,50 Hz supply and ABC phase rotation. Use Van as the reference. Calculate the line current,( Ia) in polar form.Two buses are interconnected by a transmission line of impedance (0.03 +j0.011) pu. The voltage on one bus is 1/0°pu, and the load on the other bus is (1.2 + j0.5) pu. Estimate the following: i) receiving end voltage after two iterations ii) load current iii) sending end apparent power PLEASE SHOW WORKING STEP BY STEPCircuit Impedance Z= (ohms) Phase Angle = arc cos R/Z = Calculate Es= (V) Calculate Ec= (V) Calculate Er= (V) Calculated El= (V)
- Two loads are connected in parallel to a source of emf whose voltage is (110 + j63.5). if the branch currents are ?1= (8 – j8) & ?2= (7.5 + j10). Calculate the following items below. a. Total current b. Equivalent impedance c. Total power d. Reactive powerThree Impedances each of (6 – j26)Ω are connected in mesh across a three-phase 425V ac supply. Determine the phase current, line current, active power, reactive power and apparent power drawn from supply. phase current (Ip) , Line current , real power , reactive power, Apparent powerAn industrial facility consumes 25 MW (three-phase) at 0.80 power factor lagging. The voltage at the source is 13.2 kV. The plant is fed with a three-phase line that has a series impedance of 0.1+j1 Ω. Determine: • Voltage at the plant (load). • Voltage regulation, Power losses on the line and efficiency. • Capacitor kVAR to reduce voltage regulation to 5%. • New power losses on the line and efficiency. ..