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What are the components of a power system?
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generator

Traansformer

Conductors

Insulators
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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. 

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What is meant by feeder in power system?

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

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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 (C) displacement power factor is due to harmonic currents (D) total power factor is due to fundamental component of current

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

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Commonly used instruments in power system measurement are induction.

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

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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.

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

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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.

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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 stability study  (C) Constant power in stability study and constant impedance in load flow study  (D) Constant impedance in both load flow study and in stability study

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

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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 lightening strokes (3) suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

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

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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

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

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steady-state stability of a power system is improved by

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

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

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

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

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

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Summerise the role of power system engineer.

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

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

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

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

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CD mechanism CD pick up assembly Gear system Motors CD lens Display panel Front panel Servo systems.

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Categories of semiconductor components (Integrated circuit families) Integrated circuits are made from semiconductor material These are divided into three main categories A) ... minus, true or false etc. common families include Transistor Transistor Logic (TTL), CMOS, MOSFET.

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How does electricity get from the power plant to your home?

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Electricity  gets  into   my   home  due  to  potential  diffrence  created   between  the  live   wire  and  neutral  wire.

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State the function of following components of a nuclear power station: i) Moderator ii) Shielding iii) Control rod iv) Coolant 

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i) Function of Moderator :- Moderator is to moderate or reduce the speed of fast neutron to help the fission process.  ii) Function of sheilding : Shielding is to protect environment, ... from reactor core and transfer it in heat exchanger for producing steam at high pressure and temperature. 

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An _____________is a network of electrical components used to supply, transfer and use electric power:  (A) Electric power system (B) Electric power (C) All of the above (D) None of the above

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An Electric power system is a network of electrical components used to supply, transfer and use electric power.

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C.L s/m. EX. Air conditioner (AC), rocket launcher, radar system, voltage stabilizer etc.

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