What is a safe distance from power lines?

Question

asked Mar 10, 2018 by anonymous

72 views

Please log in or register to answer this question.

← Prev Question Next Question →

Related questions

asked Mar 22, 2018 by anonymous

Power for lighting in passanger coach, in a long distance electric train, is provided?

Last answer: Power for lighting in passanger coach, in a long distance electric train, is provided through individual generator of bogie and batteries.

0 like 0 dislike

73 views 1 answer

asked Aug 25, 2019 by anonymous

Why is AC better for long distance power transmission than DC ?

Last answer: ac is more economical to transmit for long distances . wires can be made smaller by step up transformer .. since major cost are wires to transmit .. then at the end of distance step down transformer is used for commercial use.

0 like 0 dislike

166 views 4 answers

asked Mar 22, 2018 by anonymous

Overhead lines for power supply to tramcars are at a minimum height of?

Last answer: Overhead lines for power supply to tramcars are at a minimum height of 10 m.

0 like 0 dislike

2.5k views 1 answer

asked May 22, 2020 by anonymous

State the effects of low power factor on efficiency and voltage regulation of short transmission lines.

Last answer: i) Effect of Low power factor on efficiency:- When power factor of load reduces current drawn by transmission line increases so copper losses in transmission line increases, hence transmission ... increases, so voltage drop in transmission line increases so regulation increases. (Become Poor)

0 like 0 dislike

75 views 1 answer

asked Aug 18, 2019 by anonymous

Why don't we burry power lines underground ?

Last answer: Because conductor used for power transmission are not insulated and if we do so it create phase to ground fault causing interruptions to supply.

1 like 0 dislike

77 views 5 answers

asked Apr 30, 2018 by anonymous

In tuned power lines, on load :

In tuned power lines, on load : (A) the receiving end voltage is numerically equal to the sending end voltage (B) the receiving end current is numerically equal to the sending end current (C) there is no voltage drop (D) all the above

Last answer: In tuned power lines, on load : (A) the receiving end voltage is numerically equal to the sending end voltage (B) the receiving end current is numerically equal to the sending end current (C) there is no voltage drop (D) all the above

0 like 0 dislike

55 views 1 answer

asked Mar 10, 2018 by anonymous

How many volts are in the power lines?

0 like 0 dislike

73 views 0 answers

asked Mar 11, 2018 by anonymous

Is induction heating safe?

0 like 0 dislike

49 views 0 answers

asked Apr 26, 2018 by anonymous

The standard for long distance analog signal transmission in process control industry is

The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V

Last answer: The standard for long distance analog signal transmission in process control industry is 4-20 mA

0 like 0 dislike

2.5k views 1 answer

asked Apr 30, 2018 by anonymous

A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are :

A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are : (A) less than 66 kV (B) lie between 66 kV and 110 kV (C) more than 165 kV (D) lie between 110 kV and 165 kV

Last answer: A minimum clearance of 6.3 m to ground is required for overhead lines when operating voltages are : lie between 66 kV and 110 kV

0 like 0 dislike

103 views 1 answer

asked Sep 4, 2018 by anonymous

Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.

Last answer: Magnetic Lines of force- These are the imaginary lines (having no physical existence) introduced by Faraday for the pictorial representation of the distribution of a magnetic field. OR A line of ... that the tangent at any point gives direction of the resultant force at that point.

0 like 0 dislike

55 views 1 answer

asked Apr 28, 2018 by anonymous

If a 5-bus test system contains 6 transmission lines and one transformer, how many non- zero elements are

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

Last answer: If a 5-bus test system contains 6 transmission lines and one transformer, 19 non-zero elements are there in the system Y-bus.

0 like 0 dislike

2.9k views 1 answer

asked May 1, 2018 by anonymous

The purpose of guard ring in transmission lines is to

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

Last answer: The purpose of guard ring in transmission lines is to reduce the earth capacitance of the lowest unit.

0 like 0 dislike

1.1k views 1 answer

asked Apr 29, 2018 by anonymous

Which of the following is the name given to the lines of electric force which move so that its beginning traces

Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

Last answer: Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative ... A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

0 like 0 dislike

60 views 1 answer

asked Mar 20, 2018 by anonymous

Series capacitors on transmission lines are of little use when the load VAR requirement is?

Last answer: Series capacitors on transmission lines are of little use when the load VAR requirement is small.

0 like 0 dislike

147 views 1 answer

asked Mar 10, 2018 by anonymous

Why ACSR conductor is used for overhead lines?

Last answer: It has high tensile strength

0 like 0 dislike

2.7k views 1 answer

asked May 22, 2020 by anonymous

State the classification of transmission lines depending on length of transmission lines.

Last answer: A) According to Voltage level: ( 2 Marks) a) High voltage Transmission Line (HV) up to 33 KV b) Extra High Voltage Transmission Line (EHV) above 33 KV up to 400 KV c) Ultra ... Transmission Line: - The length of Long transmission Line is above 200KM and its line voltage is above 100KV

0 like 0 dislike

25 views 2 answers

asked May 21, 2020 by anonymous

Find out number of data lines required to interface 16 LEDs arrange in the 4 x 4 matrix form.

Last answer: 4+4=8, eight lines are required for 4x4 matrix of 16 LEDs

0 like 0 dislike

62 views 1 answer

asked Sep 17, 2019 by Aishwarya ilp

Explain about cross arms in overhead lines

0 like 0 dislike

60 views 0 answers

asked Aug 18, 2019 by anonymous

Why are overhead transmission lines not insulated?

Last answer: Insulators are useful to help separate electrical conductors when they come into physical contact. Overhead Transmission Lines Are Not Insulated: The overhead transmission line is carrying extreme high voltage and ... a whole lot of thick insulation to absorb the heat produced by such high voltage.

0 like 0 dislike

114 views 7 answers

asked Aug 8, 2018 by anonymous

Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.

Last answer: Magnetic linens of force is the imaginary lines for magnetic field of magnet around it. These magnetic lines of forces are introduced by Michael Faraday. The direction of lines of force is from N-pole to S-pole. The figure shows lines of force for bar type magnet.

0 like 0 dislike

81 views 1 answer

asked May 8, 2018 by anonymous

In which of the following transmission lines, the value of the Shunt admittance should be

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

Last answer: 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

0 like 0 dislike

445 views 1 answer

asked Apr 28, 2018 by anonymous

Corona loss in transmission lines can be reduced by

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

Last answer: Corona loss in transmission lines can be reduced by using bundled conductors

0 like 0 dislike

95 views 1 answer

asked Apr 28, 2018 by anonymous

A Unified Power Flow Controller (FACTS controller) is a voltage source converter based

A Unified Power Flow Controller (FACTS controller) is a voltage source converter based (A) Inter-phase power controller (B) Static Compensator (C) Combination of series and shunt compensators (D) Solid-state series compensator

Last answer: A Unified Power Flow Controller (FACTS controller) is a voltage source converter based Combination of series and shunt compensators

0 like 0 dislike

82 views 1 answer

asked Apr 28, 2018 by anonymous

In voltage source converter based HVDC transmission system the active power is controlled by changing

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

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

0 like 0 dislike

99 views 1 answer

asked Mar 10, 2018 by anonymous

Is more power dissipated in series or parallel?

0 like 0 dislike

54 views 0 answers

asked Mar 10, 2018 by anonymous

Why high voltage is used in power transmission?

Last answer: The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.

0 like 0 dislike

5.2k views 2 answers

asked Mar 10, 2018 by anonymous

How can power loss be reduced?

0 like 0 dislike

61 views 0 answers

asked Mar 10, 2018 by anonymous

How do you calculate power loss?

0 like 0 dislike

55 views 0 answers

asked Mar 10, 2018 by anonymous

Why high voltage can reduce power loss?

Last answer: when voltage has increased due to reduced current flow, thus power loss given by ( I^2R) will be low due to reduced current(I^2) provided that resistance (R) is constant.

0 like 0 dislike

2.5k views 1 answer

asked May 17, 2020 by anonymous

What is the value of capacitance required to improve power factor from 0.7 to 0.9.

What is the value of capacitance required to improve power factor from 0.7 to 0.9. Given that: Real power = 50 W Vrms of the source = 120 Frequency = 50 Hz #powerfactor

0 like 0 dislike

184 views 0 answers

asked Mar 25, 2018 by anonymous

"Maximum power output is obtained from a network when the load resistance...

"Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with?

Last answer: "Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with Maximum power transfer theorem.

0 like 0 dislike

116 views 1 answer

asked Apr 9, 2018 by anonymous

When the communication line run parallel to the power lines in close proximity ...

When the communication line run parallel to the power lines in close proximity P. The electromagnetic effect produces current due to induction resulting its superposition on the speech signal of the communication line causing distortion Q. The electrostatic effect raises the potential of the communication circuit as a whole and thereby posing a threat of damage to the ... lines Which of the following combinations is valid? A) R only B) P, Q & R C) P & Q only D) P & R only

0 like 0 dislike

104 views 0 answers

asked Mar 26, 2018 by anonymous

In a d.c. motor, the mechanical output power actually comes from?

Last answer: In a d.c. motor, the mechanical output power actually comes from electrical input power.

0 like 0 dislike

585 views 1 answer

asked Mar 25, 2018 by anonymous

Pure inductive circuit takes power from the A.C. line when?

Last answer: It takes power when voltage decreases and current increases.

0 like 0 dislike

909 views 2 answers

asked Aug 2, 2020 by anonymous

If all the lines in the image below are of the same length but of different thickness and are drawn in perspective with respect to their distance from the viewer, which of the following statements will be TRUE?

Last answer: A D

0 like 0 dislike

29 views 1 answer

asked Mar 10, 2018 by anonymous

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

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

0 like 0 dislike

92 views 1 answer

asked Mar 8, 2018 by anonymous

How to make power bank from laptop battery cells?

Last answer: You can make the power bank from laptop battery cells. Things you need to make power bank from laptop battery cells: Laptop battery cells (about 6 in parallel) Universal Dual USB 5V 1A 2.1A New Hot ... If you have any doubt ask it. Thanks...

0 like 0 dislike

216 views 1 answer

asked Apr 29, 2018 by anonymous

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

Last answer: What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

0 like 0 dislike

136 views 1 answer

asked Mar 10, 2018 by anonymous

What is a high tension power line?

Last answer: High tension power line is a high voltage of 115 kv and power line is underground transimissio used by urbun areas

0 like 0 dislike

70 views 2 answers

asked Mar 10, 2018 by anonymous

What is a digital power meter?

0 like 0 dislike

48 views 0 answers

asked Mar 10, 2018 by anonymous

What is a power quality analyzer?

0 like 0 dislike

434 views 0 answers

asked Aug 1, 2020 by anonymous

What is the shortest distance (in cm) for the red dot to reach the position x? The dot can travel only along the grid lines shown.

Last answer: 18

0 like 0 dislike

34 views 1 answer

asked May 8, 2018 by anonymous

What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to

What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: (A) Eddy Current and Hysteresis losses will be excessive (B) Current will be too much high (C) Transformer may start to smoke and burn (D) No effect

Last answer: What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: (A) Eddy Current and Hysteresis losses will be ... will be too much high (C) Transformer may start to smoke and burn (D) No effect

0 like 0 dislike

495 views 1 answer

asked Mar 10, 2018 by anonymous

What can you do to prevent a power surge?

0 like 0 dislike

51 views 0 answers

asked Mar 10, 2018 by anonymous

What would cause a power surge in a house?

Last answer: If your neibour / other flat owners / your maintainer staff switch on any type of inductive load that can cause power surge / dip

0 like 0 dislike

70 views 1 answer

asked Mar 10, 2018 by anonymous

What are the components of a power system?

Last answer: generator Traansformer Conductors Insulators

0 like 0 dislike

69 views 1 answer

asked Apr 1, 2018 by anonymous

if the rated voltage from the power lines is applied to the primary of a single-phase transformer...

if the rated voltage from the power lines is applied to the primary of a single-phase transformer which is operated on no-load, then

Last answer: if the rated voltage from the power lines is applied to the primary of a single-phase transformer which is operated on no-load, then input voltage is sinusoidal and input current is non sinusoidal.

0 like 0 dislike

47 views 1 answer

asked Jun 28, 2019 by anonymous

What is the unit of electric power?

Options: A) WATT B) AMPERE C) VOLTS D) OHM

Last answer: Correct Answer: A) WATT

0 like 0 dislike

61 views 1 answer

asked Nov 6, 2018 by Power system

What is power serving in e-motors

0 like 0 dislike

61 views 0 answers

What is a safe distance from power lines?

Please log in or register to add a comment.

Please log in or register to answer this question.

0 Answers

Related questions