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What is power system planning?

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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 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 : 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 : 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 : 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 : Explain power system analysis.

Description : What are the advantages of an interconnected system?

Description : What is the definition of an electrical system?

Description : Define orientation and grouping Principles of Planning.

Answer : (1) Orientation: Orientation is the method of proper placement of planned unit of the building in relation to natural elements like sun, rain, wind, topography, etc. The position of building is ... or in other words, making group of units of building depending upon their functional co-relations.

Description : Define prospect and ventilation in principle of planning. 

Answer : Prospect - It is defined as the art of positioning of openings like doors and windows to have a desirable view like gardens, lake, sea, river, mountains, greenery, etc. and blocking un desirable ... OR Ventilation is the process of fresh air entering a building via a window, door or other opening

Description : How many volts are in the power lines?

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

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

Description : List any three purposes of submission drawing and working drawing in civil engineering works.

Answer : Purposes of submission drawing - 1) To get sanction from competent authority before starting actual work. 2) To check whether the proposed construction is as per bye-laws or not. 3) To decide the ... carry out the work as per design. 6) To check the work carried out and record measurements. 

Description : Enlist various units of primary Health Center and write minimum dimension of each unit.

Answer : Units required for Primary health centre: a) Entrance or reception - 2.5 m wide b) Doctor's Room - 3 m x 3.6 m c) Examination Room - 3 m x 4 m d) Operation Theatre - 4 m x 5.5 m e) ... Parking - Scooter/ Motorcycle - 3 sq.m./ vehicle, Cycle- 1.2 sq.m./ cycle l) Sanitary block 

Description : Draw a neat sketch showing RCC components of lintel with 1:20 scale.

Answer : Draw a neat sketch showing RCC components of lintel with 1:20 scale.

Description : Explain important rules and byelaws of sanctioning authorities for construction in rural area. 

Answer : Important rules and byelaws of sanctioning authorities for construction in rural area are - 1) The minimum height of plinth shall be regulated on the basis of environmental and topographical condition ... ecofriendly methods like growing of duck weed plants shall be adopted to treat waste water. 

Description : Write any four purposes of construction notes and any two purposes of north line.

Answer : Purposes of Construction notes - 1) These include additional information about the structure which can not be shown in drawing. 2) These are useful for better understanding of drawing. 3) ... in drawing with common reference direction. 4) To avoid discrepancies in understanding of drawing. 

Description : Give the necessity of perspective drawing. 

Answer : Necessity of perspective drawing - 1) Perspective drawing gives a three dimensional feeling of a flat image. 2) It is helpful for architects or designer to decide the elevation and overall ... necessary for advertisements of commercial projects. 6) It helps in landscaping around the structure. 

Description : State the importance of site plan and openings schedule in civil engineering drawing.

Answer : Importance of Site plan - 1) It gives idea of site i.e. plot size and size or shape of proposed building. 2) It is helpful to calculate plot area and plinth area. 3) It gives details of side ... to the fabricator. 5) For billing purpose. 6) To make alteration in type of opening, if required. 

Description : Draw neat sketches for following lines (1) Section line (2) Hidden line (3) Dimension line (4) Extension line

Answer : (a) Hidden Line 

Description : Draw Graphical Symbols for (1) Concrete (2) Wood work (3) Sliding door (4) UCR Masonary

Answer : Graphical Symbols for- 

Description : Suggest various units and their sizes for primary health centre for the structure constructed in a village. 

Answer : Units required for Primary health centre: a) Entrance or reception - 2.5 m wide b) Doctor's Room - 3 m x 3.6 m c) Examination Room - 3 m x 4 m d) Operation Theatre - 4 m x 5.5 m e) ... k) Parking - Scooter/ Motorcycle - 3 sq.m./ vehicle, Cycle- 1.2 sq.m./ cycle l) Sanitary block 

Description : Define following: (i) Floor Area (ii) Super built up Area (iii) Carpet Area 

Answer : (i) Floor Area - This is the usable covered area of the building at any floor level. Floor area is calculated by deducting area of walls from plinth area. (ii) Super built up Area - When area of ... - This is the floor area of the usable rooms at any floor OR the area where carpet can be laid.

Description : Enlist the various documents and drawings required for municipal sanction.

Answer : The various drawings required for municipal sanction are -  1) Site Plan : Along with block plan showing plinth outline and area statement  2) Ground floor plan, first floor plan, plans of ... numbers.  5) Certificate regarding to area of plot given by a corporation or town planning department.

Description : Differentiate between load bearing and framed structure.

Answer : Sr. No.  Load Bearing Structure Framed Structure  1 Load is transferred to ground or foundation through walls.  Load is transferred to ground or foundation through columns. 2 Walls play an ... U.C.R. masonry for plinth. U.C.R. masonry may not be used as plinth.

Description : State the importance of submission drawing and working drawing in civil engineering works.

Answer : Purposes of submission drawing - 1) To get sanction from competent authority before starting actual work. 2) To check whether the proposed construction is as per bye-laws or not. 3) To decide the ... carry out the work as per design. 6) To check the work carried out and record measurements. 

Description : State the purpose of preparing data drawing and measures drawing.

Answer : Purpose of preparing Data drawing - 1) Data drawing is necessary to prepare line plan of proposed structure as per requirements of owner like, number of family members, number of units required, ... modifications in existing structure. 4) For taking judgement in case of any dispute about area. 

Description : Define the terms: (i) Centre of vision (ii) Picture plane 

Answer : (i) Centre of vision The orthographic projection of the station point on the picture plane is called as centre of vision or principal vanishing point.  (ii) Picture plane An imaginary transparent plane set up between the observer’s eye and the object is called as picture plane. 

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