Switches are always connected in parallel to the load Select one: True False

Q: An electrical lineman is connecting three single-phase transformers in a open delta configuration,…

A: Transformer- Transformer is a passive component which transfers electrical energy or electrical…

Q: The avalanche breakdown occurs at a lower voltage compared to zener voltage. True False

A:

Q: Complete the blank   For a 66 kV transmission, the number of  suspension insulators  required is…

A: Each disk of suspension type insulator is designed for  11KV no of insulator disk  n=line…

Q: _It is required to generate alternating voltage using (single transformer 2KVA),( single transformer…

A: Single transformer T1 = 2 KVA Single transformer T2 = 100 KVA

Q: Obtain the symmetrical components of a set of unbalanced currents

A: Given, Unbalanced currents, IA=1.6∠25°IB=1.0∠180°IC=0.9∠132°

Q: A 400/100 V, 5 kVA, two-winding transformer is to be used as an autotransformer to supply power at…

A: This question belongs to electrical machine . It is based on the concept of auto transformer . When…

Q: The process of reversal of current flow is known as Commutation. Select one: True False

A: The given statement is True. The explanation is provided below.

Q: Figure 4 (c) shows two (2) 11 kV/415V distribution transformers are connected using 2 incomings with…

A: For maintenance of a component in the power system, we have to flow the thumb rule 1st of all we…

Q: - Inter pole winding is connected in

A: Inter pole produces a counter emf to nullify reactance voltage.

Q: Adding resistance to the stator circuit of :the I.M. willI

A: If a resistance is added to rotor of a induction motor then the starting torque is increased  T is…

Q: A 50 element is set for 0.8 per unit (80%) of the CT primary current rating. For a CT with a rated…

A:

Q: 30 V DC generators are operating

A: Three Phase Synchronous machine- This Synchronous machine comprises of rotor and stator as it basic…

Q: xplain substation earthing with diagram

A: Substation earthing: Any substation's earthing system's primary function would be to dissipate short…

Q: TRUE or FALSE: Since autotransformers have a common winding, the primary and secondary terminals are…

A:

Q: Two DC shunt generators A and B are rated at a 100 and 150kW at 110V respectively. Their external…

A: In this question, we need to determine the terminal operating voltage if two machines are operated…

Q: The conditions for voltage build-up in D.C shunt generator are -- - - and must be constant…

A:

Q: 3. The symmetrical components, the value of (1+ a + a?) is equal to

A:

Q: Solve the circuits given, with solutions: EB = 24 volts Redraw diagram indicating where the…

A: A Voltmeter also known as a voltage meter is a device that measures the voltage or potential…

Q: Kirchhoff's voltage law (KVL) states that the sum of all voltages around any closed path (loop) in a…

A: KVL states that the algebraic sum of all the voltages around any closed path in a electrical circuit…

Q: Derive the following law At heavy Loads :n = K3 - KATd (similar to shunt)

A:

Q: equivalent winding (a) resistance,(b) reactance and (c) impedance referred to the high voltage side.

A:

Q: Traffic light system is the example of open-loop system O none of the mentioned O closed-loop system…

A: Before getting in to the question lets get to know about open loop and closed loop transfer function…

Q: Compute using 4 decimal places and use scientific notation when necessary Box all final answers.…

A: Source:Ean=120∠0° v;Ebn=120∠-120° v;Ecn=120∠120° vZan=Zbn=Zcn=0.1+j1.5 ΩLine Impedance:Zline a=Zline…

Q: The algebraic sum of current leaving and entering in any closed loop is zero. A True B False

A: To state whether the given statement is true or false.

Q: Grounding methods in Power systems

A:

Q: for the parallel operation of two 1-ph transformers with unequal induced e.m.fs; prove that: 1-…

A: The equivalent circuit is directly drawn only for secondary in the next step expressing induced EMFs…

Q: 13) Primary of Current Transformer is having less number of turns. Select one: True False

A: Current transformer- A current transformer is used the extending the range of the ammeter and also…

Q: B- what are the disadvantages of the auto transformers? C-An auto transformer is used to step-down…

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

Q: Transformers: 1. How does the polarity settings affect Vprimary and Vsecondary?

A: Transformer:- It is a  static electric machine which transfers energy from one end to another end…

Q: Kirchhoff's voltage law (KVL) states that the sum of all voltages around any closed path (loop) in a…

A: So we have to find which option is true and which is false .

Q: Write down the KVL equation of the First loop for the circuit shown in Figure.

A: The given circuit is shown below:

Q: 2. Using series and parallel combinations

A:

Q: The three motor control, the windings “ U2, V2, W3 “ are connected on what

A: Connection of the wiring of the  three motor control, the windings “ U2, V2, W3 “ are connected on?…

Q: Main goal of using feed water heaters is to minimize the amount of heat addition in steam generator.…

A: A feed water heater is a power plant component used to pre heat the water delivered to the steam…

Q: Q4 (a) Summarize the procedure to include the effects of load current in the fault analysis.

A: Since you have posted multiple different questions. we will solve the first question for you. To get…

Q: There is a zero uence current in line to line fault. Select one: True O False

A: zero sequence currents are present only when fault involves ground . ground is involved only if line…

Q: 1. Given a switch converter circuit below, determine what class of chopper is this. Explain. D,本 文5…

A: Thyristor is a Unidirectional Semiconductor device. It has 4 terminals. It is a Silicon controlled…

Q: Load flow study is carried out for O Stability studies Fault calculations Load frequency control…

A: Given  Load flow study

Q: Check the correct statements. * APU supplies DC power to DC bus 1 IDG1 and 2 are placed in parallel,…

A: Given statements about the APU APU supplies DC power to DC bus 1 IDG1 and 2 are placed in parallel,…

Q: Ex-2- A small generating stetion shown ik Fig. has twe alterators of 3000 kUA and U500KVA and…

A: Single line diagram is shown below- Bus voltage=3300 VXAold=0.07 puXBold=0.08 puXtransformer=0.075…

Q: Busbars are usually made of Steel. Select one: O True O False

A:

Q: 36. The essential condition for parallel opearation of two 1- transformers is that they should have…

A: In this question,  We need to choose the correct options What is the essential condition for the…

Q: The emergency generator is required to be sized for all the loads that can be connected to it. a.…

A: When the power failure takes place the emergency generator is normally started by a small electric…

Q: In two way switch method, we will connected a known resistor with unknown resistor on series by…

A: We use switches in our Offices, homes, industries, motors and a variety of other places all the…

Q: False

A:

Q: The process of reversal of current flow is known as Commutation. Select one: True False

A: Given :    Commutation circuit mainly used in the power system circuit.   Commutation circuit made…

Q: ) In transformer, the short circuit test is used to determine the copper loss. Select one: True…

A: