NEED CORRECT ANSWER AND ITS EXPLAINATION WITHOUT USING AI OR CHATGPT DQuestion 24B8088What part is identified by the part labeled "G"CommutatorField PoleMounting PlateBrushYolkRotorField WindingsShaft

From the given D.C machine construction diagram, the name of 'G' part is SHAFT. It is made up of…

Answered: D Question 24 B 8088 What part is…

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter14: Phase Failure Relays

Section: Chapter Questions

Problem 2SQ: What are the hazards of phase failure and phase reversal?

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Similar questions

What are the hazards of phase failure and phase reversal?
What is virtual synchronous Generators and their applications in Microgrid
Please solve d, e, f ONLY.
A power station consists of two synchronous generators A & B of ratings 250 MVA and 500MVA with inertia 1.6 pu and 1.0 pu respectively on their own base MVA ratings. The equivalent pu inertia constant for the system on 100 MVA common base is:- (a) 2.6 (b) 0.615 (c) 1.625 (d) 9.0
2. When a large shunt capacitor is suddenly connected in parallel with the load bus in the distribution feeder, what would happen to this bus current? O A. Increase B. Decrease D. None of Above
The direct electrical connection of the windings allows transient over voltages to pass through the auto transfonner more easily, and that is an important disadvantage of the autotransformer. (a) True (b) False
The bus bars of a power station are in two sections A and Bseparated by a reactor. Connected in section A are two 12MVA generators of 15% reactance each and to B, 8 MVAgenerator of reactance 10%. The reactor is rated 8 MVA and15% reactance. Two feeders are connected to bus bar Athrough transformers, each rated at 4 MVA and 5% reactance.Determine the maximum short circuit MVA with which circuitbreakers on the outgoing side of the transformers have todeal.
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stribution feeder has 600/5 C100 CT. A three phase fault of l=10200A occurs at F as shown in Calculate the voltage drop developed across CT if the phase relay burden resistance Z₁ = 0.1 , the lead resistance R₁ = 0.5f, and the CT resistance Rg=0.40 Will this fault current lead to CT saturation? If not at what fault level, the CT will saturate? GOM 600:5 O/C R Fig. 2 10200A
A 12 MVA, 132/6.6 kV, transformer having a reactance of 0.15 pu is fed from an infinite bus. The transformer feeds two motor each 6 MVA, 6.6 kV. Each motors has a transient reactance of 0.14 pu and a subtransient reactance of 0.30 pu based on its own rating. A three phase balanced fault occurs at the terminals of one motor as shown in the figure below. Find the subtransient fault current and subtransient current in breaker. M1) 132/6.6 KV СВ 38 CB Infinite Bus M2 Fault
A generator supplies a motor through a Y-A transformer. The generator is connected to Y side of the transformer. A fault occurs between the motor terminals and the transformer. The symmetrical components of the subtransient current in the motor flowing toward the fault are: I =-0.8- j2.6pu I =-j2.0pu I =-j3pu From the transformer toward the Fault: I = 0.8– j0.4pu I? =-j1.0pu 1 = Opu Assume X =X,=X, for both the motor and the generator. (a) Describe the fault type and find the prefault current, if any, in line a. (b) Determine the subtransient fault current in per unit. (c) Calculate the subtransient current in each phase of the generator in per unit taking into consideration the phase shift of the Y-A transformer.
Consider the oneline diagram of a simple power system shown in Figure 9.20. System data in per-unit on a 100-MVA base are given as follows: The neutral of each generator is grounded through a current-limiting reactor of 0.08333 per unit on a 100-MVA base. All transformer neutrals are solidly grounded. The generators are operating no-load at their rated voltages and rated frequency with their ENIFs in phase. Determine the fault current for a balanced three-phase fault at bus 3 through a fault impedance ZF=0.1 per unit on a 100-MVA base. Neglect -Y phase shifts.

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D Question 24 B 8088 What part is identified by the part labeled "G" Commutator Field Pole Mounting Plate Brush Yolk Rotor Field Windings Shaft