Match the following Junction Point where one end of all three phase loads joined together Choose... Current in the neutral wire is zero Choose. Delta connection Power measured by two wattmeter method Delta Point Star connection Each load will be connected between a Phase wire and Neutral wire Series Connection only unbalanced Load Only Balanced Load Both Balanced and Unbalanced Load Neutral point Each load will be connected between two phase wires

Match the following Junction Point where one end of all three phase loads joined together Choose... Current in the neutral wire is zero Choose. Delta connection Power measured by two wattmeter method Delta Point Star connection Each load will be connected between a Phase wire and Neutral wire Series Connection only unbalanced Load Only Balanced Load Both Balanced and Unbalanced Load Neutral point Each load will be connected between two phase wires

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 2.45P: Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at...

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Does an open connection permit balanced three-phase operation? - (a) Yes (b) No
In a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the line-to-neutral voltages are always equal to zero. (a) False (b) True
Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at 0.9 power factor leading, are connected in parallel and supplied by a balanced three-phase Y-connected, 480-V source. (a) Determine the source current. (b) If the load neutrals are connected to the source neutral by a zero-ohm neutral wire through an ammeter, what will the ammeter read?
It is stated that (i) balanced three-phase circuits can be solved in per unit on a per-phase basis after converting - load impedances to equivalent Y impedances. (ii) Base values can be selected either on a per-phase basis or on a three-phase basis. (a) Both statements are true. (b) Neither is true. (c) Only one of the above is true.
When working with balanced three-phase circuits, per-phase analysis is commonly done after converting loads to Y loads, thereby solving only one phase of the circuit. (a)True (b)False
A single-phase source is applied to a two-terminal, passive circuit with equivalent impedance Z=3.045, measured from the terminals. The source current is i(t)=22cos(t)kA. Determine the (a) instantaneous power, (b) real power, (c) reactive power delivered by the source, and (d) source power factor.
A balanced three-phase source with grounded neutral has line-to-neutral voltages of 120 volts with an-bn-cn sequence. This source has an internal series impedance of 0.15+j2.0 ohms per phase. It supplies power to an unbalanced three-phase delta load with impedances: Zab = 30+j40; Zbc = 50-j40; Zca = 65+j25 ohms. If there is a double-line-to-ground fault at lines b and c load-side, what is the magnitude of the fault current injected to the ground in amperes?
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Consider a 3-phase star-delta configuration with a generator and a 3-phase load.The generator supplies voltage of grid-standard 380/220V@50Hz. Each load is (15+15j) Ω.(with standard grid voltages)Measure and fill the table below ( miss out the non measurable ones.).