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Explain power system analysis.

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Description : Explain starting system in diesel electric power plant.

Answer : Starting system in Diesel Electric Power Plant: It includes Storage battery, compressed air tanks, self-starter etc. The purpose of engine starting system is to rotate the engine initially while ... as Ammeters, Voltmeters, Wattmeters, Thermometers, Pressure gauges, Visible and audible alarm etc.

Description : Explain fuel system and air intake system in diesel electric power plant.

Answer : Fuel system and air intake system in diesel electric power plant :  Fuel system: It consists of storage tank, strainers, fuel transfer pump and all day fuel tank. The fuel oil is supplied ... Filters are provided to remove dust particles from air which may act as abrasive in the engine cylinder.

Description : Summerise the role of power system engineer.

Answer : Role of power system engineer:  i. On the planning side he or she has to make decisions on how much electricity to generate  ii. For operation of the power system he has to plan for ... for energy conservation and load management. viii. For solving the power system problems he has to update with

Description : State the functions of fuel system and exhaust system of a diesel power station.

Answer : Fuel system: It supplies fuel to engine for combustion purpose. It consists of Fuel Pump: - It supplies fuel to engine for combustion purpose. Strainer: - Are provided to remove suspended impurities and ... most of the noise. Chimney:- To exhaust gases in the atmosphere as high as possible. 

Description : What is the choice of size and number of generator units in interconnected power system?

Answer : Choice of Size and Number of Generating Units: 1. The size/rating and number of generating units in such way that they approximately match with the load curve as closely as possible. 2. In ... , if power plant is connected to grid system then generating unit of higher capacity can be installed.

Description : The stability of the power system is not affected by  (1) generator reactance (2) line reactance (3) line losses (4) output torque

Answer : The stability of the power system is not affected by line losses

Description : Generally in a power system network, the load is represented as a :  (A) Constant power in both load flow study and in stability study  (B) Constant power in load flow study and constant ... impedance in load flow study  (D) Constant impedance in both load flow study and in stability study

Answer : Generally in a power system network, the load is represented as a : Constant power in load flow study and constant impedance in stability study 

Description : A lightening arrester connected between the line and earth in a power system  (1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct ... suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

Answer : A lightening arrester connected between the line and earth in a power system protects the terminal equipment against travelling surges

Description : In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

Answer : In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage

Description : The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

Answer : The benefit of power factor correction in a power system is lower power consumption

Description : If non-linear loads are connected to the power system, then (A) displacement power factor is same as the total power factor (B) displacement power factor is not equal to the total power ... factor is due to harmonic currents (D) total power factor is due to fundamental component of current

Answer : If non-linear loads are connected to the power system, then displacement power factor is not equal to the total power factor

Description : steady-state stability of a power system is improved by

Answer : steady-state stability of a power system is improved by using double circuit line instead of single circuit line

Description : For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is

Answer : For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is 25 x 25

Description : With fault clearing time, the transient stability of a power system

Answer : With fault clearing time, the transient stability of a power system decreases

Description : Power factor of the system is kept high?

Answer : Power factor of the system is kept high to reduce line losses, to maximise the utilization of the capacities of generators, lines and transformers, to reduce voltage regulation of the line.

Answer : Commonly used instruments in power system measurement are induction.

Answer : In a distribution system, in order to improve power factor, the synchronous capacitors are installed at the receiving end.

Answer : The primary reason for low power factor is supply system is due to installation of induction motors.

Answer : The steady state stability of the power system can be increased by connecting lines in parallel.

Answer : Air blast circuit breakers for 400 kV power system are designed to operate in 50 millisecond.

Answer : The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc.

Description : What is sag in power system?

Answer : Sag is a catenary curve in between two points of supporters.and also we can say the lowest point of the conductor in between the two points of supporters. 

Description : What are interconnected power system?

Answer : Interconnected power systems are those which connect different geographic regions. In Australia we have a National Electricity Grid which connects 6 states. Transfers of power occur between the states depending ... make more profit from this.National-Electricity-Market-Fact-Sheet.pdf (0,9 MB)

Description : What is meant by feeder in power system?

Answer : A feeder line is a peripheral route or branch in a network which connects smaller or more remote nodes with a route or branch carrying heavier traffic. The term is applicable to any system based on a hierarchical network.

Description : What are the components of a power system?

Answer : generator Traansformer Conductors Insulators

Description : What is microgrid in power system?

Description : What is power system planning?

Description : Explain power relations in three phase circuit.

Description : Explain complex power.

Description : Explain power in single phase AC circuit.

Description : Magnetic Circuit and its Analysis

Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : Mesh Analysis with two supermesh

Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : Nodal Analysis Example 3

Answer : Nodal Analysis Example 3

Description : Mesh Analysis Example

Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : Nodal Analysis with Voltage Sources dependent voltage source and two supernode

Answer : Nodal Analysis with Voltage Sources dependent voltage source and two supernode

Description : Nodal analysis example with voltage source and supernode

Answer : Nodal analysis example with voltage source and supernode

Description : Nodal Analysis with Voltage Sources

Answer : Nodal Analysis with Voltage Sources

Description : Nodal analysis example with dependent current source

Answer : Nodal analysis example with dependent current source

Description : Nodal Analysis Example 2

Answer : Nodal Analysis Example 2

Description : Nodal analysis example 1

Answer : Nodal analysis example 1

Description : Sinusoidal Steady-State Analysis mesh analysis

Answer : Sinusoidal Steady-State Analysis mesh analysis

Description : Sinusoidal Steady-State Analysis - nodal analysis super node problem solution 2

Answer : Sinusoidal Steady-State Analysis - nodal analysis super node problem solution 2

Description : Sinusoidal Steady-State Analysis - nodal analysis super node problem solution

Answer : Sinusoidal Steady-State Analysis - nodal analysis super node problem solution

Description : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Answer : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Description : Apply phasor analysis to evaluate the following

Answer : Apply phasor analysis to evaluate the following

Description : Nodal analysis problems

Answer : Nodal analysis problem 2

Description : Find current through resistor using nodal analysis

Answer : Find current through resistor using nodal analysis

Description : Nodal analysis problem two current source

Answer : Nodal analysis problem two current source

Description : Nodal analysis problem

Answer : Nodal analysis problem

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