Can you help by answering this question?

A circular radiation pattern is obtained using...

69 views
in Alternator by
The economic size of a conductor in transmission and distribution lines of electric power is decided by (a) Ohm’s law (b) Kelvin’s law (c) Kirchhoff’s law(d) Faraday’s law 

Related questions

2 answers 24 views

Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.

asked Apr 3, 2018 in Basic Electrical Technology by Shimroz123
1 answer 76 views

What is electric power generation transmission and distribution?

asked Dec 16, 2017 in Electric Power Distribution by Quiz
1 answer 70 views

The size of a conductor used in power cables depends on the:  (A) operating voltage  (C) current to be carried (B) power factor (D) type of insulation used

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 44 views

why we use aluminium conductor and not copper in transmission lines ?

asked Aug 18, 2017 in Electric Power Transmission by Zeeshan
1 answer 659 views

State the working principle and operation of Automatic power factor controller used in Transmission and Distribution system.

asked Oct 3, 2018 in Energy Conservation And Audit by Shimroz123
0 answers 9 views

Real power flow in transmission lines is controlled by (A) tap changing transformer (B) voltage regulating transformer (C) phase-angle regulating transformer (D) booster transformer 

asked Jun 4, 2018 in Power system by Shimroz123
2 answers 68 views

Explain how technical losses can be reduced by use of energy efficient transformer in Transmission and Distribution system.

asked Oct 3, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 18 views

The main limitation for power handling capability of short length transmission lines and cables is (A) power factor (B) stability (C) thermal effect limit (D) conductor size

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 190 views

With neat diagram explain use of “reactive power controller” to reduce technical losses in transmission and distribution system.

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
0 answers 17 views

In case of open circuited transmission lines the reflection coefficient is given by (A) 1 (B) -1 (C) 0.5 (D) 0

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 35 views

When the wave travels in a conducting medium, the rate of attenuation is decided by

asked Apr 23, 2018 in Electrical Engineering by Shimroz123
1 answer 52 views

Explain following techniques related to energy conservation in transmission and distribution system. (i) By balancing phase currents (ii) Variable technical losses (I2R losses).

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 21 views

Explain reactive power compensation in Transmission and Distribution systems.

asked Oct 2, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 34 views

The main criterion for selection of the size of a radial distribution system is

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 18 views

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

asked Sep 7, 2018 by Shimroz123
1 answer 23 views

The permissible voltage variation in transmission and distribution system is:  (A) ± 0.1% (B) ± 1% (C) ±10% (D) ± 25%

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 7 views

The ripple content of load current of a converter feeding RL load is decided by  A) Load resistance alone B) Load inductance alone C) Both load resistance and load inductance D) Neither resistance nor inductance

asked May 20, 2018 in Power electronics converters by Shimroz123
0 answers 15 views

The upper cut off frequency of a capacitive coupled RC amplifier is decided by  A) Input Coupling capacitance B) Transistor internal capacitances C) Output coupling capacitance D) Bypass capacitance

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 42 views

Heat in a conductor is produced on the passage of electric current due to?

asked Mar 25, 2018 in Basic concepts by Shimroz123
2 answers 14 views

What type of earthing is used by transmission lines?

asked May 29, 2018 in Electrical Engineering by Shimroz123
0 answers 119 views

A Transmission line conductor has been suspended freely from two towers and has taken the form of a catenary that has c = 487.68m. The span between the two towers is 152 m, and the weight of the conductor is 1160 kg/km. Calculate the length of the conductor.  (A) 487.68 m (B) 152.614 m (C) 5.934 m (D) 11.9 m 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 37 views

Bulk power transmission over long HVDC lines is preferred because of

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 458 views

List out the different technical losses that takes place in Transmission and Distribution system.

asked Oct 3, 2018 in Energy Conservation And Audit by Shimroz123
2 answers 19 views

State commercial losses in transmission and distribution systems. Also state the remedies for the same.

asked Oct 2, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 27 views

Corona loss in transmission lines can be reduced by (A) using small diameter conductors (B) using bundled conductors (C) using less spacing between conductors (D) increasing the transmission line voltage

asked Apr 28, 2018 in Power system by Shimroz123
0 answers 10 views

An array of size 100 is given and the memory addressing is byte by byte. If The base address of the array is 1000 and every record consists of 40 bytes then address of array[10] will be  (1) 1040 (2) 1400 (3) 1440 (4) 1080 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 22 views

The Power rating of a distribution power transformer is expressed in  A) kW B) kVAR C) kVA D) Ampere

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 82 views

The purpose of guard ring in transmission lines is to  (1) reduce the earth capacitance of the lowest unit. (2) increase the earth capacitance of the lowest unit. (3) reduce the transmission lines losses. (4) reduce the reactance of the line

asked May 1, 2018 in Electric Power Transmission by Shimroz123
1 answer 12 views

Explain energy conservation technique in induction motor by improving mechanical power and transmission efficiency.

asked Oct 1, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 15 views

For a fixed value of complex power flow in a transmission line having a sending and voltage V, the real power loss will be proportional to  A) V B) v2 C) 1/V2 D)1/V

asked May 20, 2018 in Power system by Shimroz123
1 answer 24 views

Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 34 views

What is the size of memory which can be accessed by direct accessing in 8085 microprocessor? A) 64 kB B) 4 kB C) 128 kB D) 128 MB 

asked Jun 18, 2018 in Microprocessors and Microcontrollers by Shimroz123
1 answer 36 views

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

asked Apr 28, 2018 in High voltage engineering by Shimroz123
2 answers 29 views

State and explain any four commercial losses in transmission and distribution system.

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
0 answers 37 views

In an n-bus power system, considering n-nodes network, the size of ybus is   (a) (n – 1) × (n – 1) (b) (n + 1) × (n + 1) (c) n × n (d) 2n × 2n 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

The number of cross -points needed for 10 lines in a cross-point switch which is full duplex in nature and there are no self connection is  A) 100 B) 45 C) 50 D) 90

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 11 views

Transmission of power by a.c. cables is impossible beyond   (a) 500 km (b) 300 km (c) 250 km (d) 45 km 

asked May 13, 2018 in Electric Power Transmission by Shimroz123
0 answers 20 views

If diameter of each conductor of a transmission line is ‘d’, then the diameter of n-layer stranded conductor will be (a) (2n – 1) d (b) (2n + 1) d (c) (3n – 1) d (d) (3n + 1) d 

asked May 26, 2018 in Electric Power Transmission by Shimroz123
0 answers 22 views

An overhead transmission line has a span of 260 m. The weight of the conductor is 0.68 kg/m. The maximum allowable tension in the line is 1550 kg. Maximum sag of the line should be (a) 5.8 m (b) 4.6 m (c) 2.7 m (d) 3.7 m 

asked May 25, 2018 in Electric Power Transmission by Shimroz123
1 answer 391 views

In which of the following transmission lines, the value of the Shunt admittance should be approximated to zero ? (A) A 66 kV 35 km long line (B) A 132 kV 200 km long line (C) A 220 kV 300 km long line (D) A 400 kV 500 km long line

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 106 views

If a 5-bus test system contains 6 transmission lines and one transformer, how many non-zero elements are there in the system Y-bus ? (A) 25 (B) 12 (C) 11 (D) 19

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 39 views

 In an alternator if the winding is short pitched by 60 electrical degrees, its pitch factor will be: A) 1.0 B) 0.866 C) 0.75 D) 0.50

asked Jun 4, 2018 in Alternator by Shimroz123
1 answer 12 views

The electric field lines and equipotential lines : (A) are parallel to each other (B) are one and the same (C) cut each other orthogonally (D) can be inclined to each other at any angle

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
1 answer 153 views

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

asked Apr 27, 2018 in Switchgear And Protection by Shimroz123
1 answer 15 views

Explain scenario of transmission and distribution losses at national level.

asked Oct 2, 2018 in Energy Conservation And Audit by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units
...