What is the requirement of cross arm in overhead line ?

What is the requirement of cross arm in overhead line ?
by

1 Answer

Answer :

Cross arm steel is made of angle section or wood. Nut-bolts , clamps, etc. are firmly attached to the head of the pole. Cross arm s insulators and conductors carry the wire.
by

Related questions

How many types of cross arm ?

Description : How many types of cross arm ?

Last Answer : Four types of cross arm. Namely: 1. Simple 2. Triangular 3. V-shaped 4. Spiral or jigsaw

What is the requirement of voltage stabilizer ?

Description : What is the requirement of voltage stabilizer ?

Last Answer : : Requirement of voltage stabilizer Computer is a highly sensitive electrical device. For this uninterrupted power supply is required. It can also cause a lot of damage due to subtle changes in flow rate ... from there. It does not directly affect the change in the angle of supply for the computer.

On what subject does inductance in transmission line depend ?

Description : On what subject does inductance in transmission line depend ?

Last Answer : a) On the line b) Conductor spacing c) Conductor radius

How many types of line support and what are they ?

Description : How many types of line support and what are they ?

Last Answer : Four types of line support. Namely- (a) wooden pole , ( b) steel pole , ( c) concrete pole , ( d) lattice steel pole

What are the components of power transmission line ?

Description : What are the components of power transmission line ?

Last Answer : ( a) Power Plant , ( b) Conductor Wire , ( c) Transformer , ( d) Line Insulator , ( e) Line Support , ( f) Power Substation , ( g) Circuit Breaker , ( h) Relay , ( I) Isolator , ( j) Lighting Arrester

Why is line transposition done ?

Description : Why is line transposition done ?

Last Answer : The average inductance value of each line is found to be equal when transposed.

What type of circuit is the transmission line ?

Description : What type of circuit is the transmission line ?

Last Answer : Answer : The transmission line is a bilateral circuit.

What is a long transmission line ?

Description : What is a long transmission line ?

Last Answer : A transmission line that is more than 150 km long and has a line voltage of more than 100 kV is called a long transmission line.

What is the effect of resistance , inductance and capacitance in transmission line ?

Description : What is the effect of resistance , inductance and capacitance in transmission line ?

Last Answer : These 3 factors create voltage drop and power loss of the line. The inductive reactance creates a voltage drop across the line and the capacitance creates a charging current.

What is a middle transmission line ?

Description : What is a middle transmission line ?

Last Answer : Transmission line length from 50 km to 150 km and line voltage from 20 kV to 100 kV is called medium transmission line.

Why is the capacitance ignored in the short transmission line ?

Description : Why is the capacitance ignored in the short transmission line ?

Last Answer : Capacitance is ignored due to low line length and low line voltage.

How many types of transmission line ?

Description : How many types of transmission line ?

Last Answer : 3 types of transmission line. Namely- 1) Short transmission line , 2) Medium transmission line , 3) Long transmission line.

What is a short transmission line ?

Description : What is a short transmission line ?

Last Answer : A transmission line that is limited to a length of 50 km and a line voltage of 20 kV is called a short transmission line.

What is the efficiency of transmission line ?

Description : What is the efficiency of transmission line ?

Last Answer : The ratio of the power of the receiving end of a transmission line to the power of the transmitting end is called the efficiency of the transmission line.

What is a ray line ?

Description : What is a ray line ?

Last Answer : If one end of a segment can be extended as desired by keeping the position of one end point correct , then it is called ray line.

Why is there no fuse in the neutral line ?

Description : Why is there no fuse in the neutral line ?

Last Answer : There will be no benefit if the fuse is in the neutral line. This means that the problem of the fuse is not removed. Cannot protect over voltage or current. Electronics will not be able to protect the device from damage. That is why the neutral fuse is not given to him.

What is the function of damper in transmission line ?

Description : What is the function of damper in transmission line ?

Last Answer : : Using a damper on the transmission line protects the pole from vibration.

What is the religion of magnetic force line ?

Description : What is the religion of magnetic force line ?

Last Answer : : The religion of magnetic force line: 1. The ball lines are uninterrupted and curved. 2. The force lines travel from the north pole of the magnet to the south pole. 3. The power lines never intersect. ... the pole is high. 5. The lines of force depend on the nature of the medium around the magnet.

The cross section of flywheel arm is 1. I section 2. Rectangular 3. Elliptical 4. Circular

Description : The cross section of flywheel arm is 1. I section 2. Rectangular 3. Elliptical 4. Circular

Last Answer : 3. Elliptical

The cross-section of the flywheel arm is, (A) I section (B) Rectangular (C) Elliptical (D) Circular

Description : The cross-section of the flywheel arm is, (A) I section (B) Rectangular (C) Elliptical (D) Circular

Last Answer : (C) Elliptical

Which of the following does not affect the elasticity of retentive clasp? A. Length of the arm B. The cross section shape C. The material used D. The undercut area

Description : Which of the following does not affect the elasticity of retentive clasp? A. Length of the arm B. The cross section shape C. The material used D. The undercut area

Last Answer : D. The undercut area

Flexibility of the retentive clasp arm does not relate to: A. Length B. Cross section C. Material D. Degree of taper E. Under cut area

Description : Flexibility of the retentive clasp arm does not relate to: A. Length B. Cross section C. Material D. Degree of taper E. Under cut area

Last Answer : E. Under cut area

Flexibility of the retentive clasp arm depends on: A. Length B. Cross section C. Material D. Degree of taper E. All of the above

Description : Flexibility of the retentive clasp arm depends on: A. Length B. Cross section C. Material D. Degree of taper E. All of the above

Last Answer : E. All of the above

By which of the following methods string efficiency can be improved ? (a) Using a guard ring (b) Grading the insulator (c) Using long cross arm (d) Any of the above (e) None of the above

Description : By which of the following methods string efficiency can be improved ? (a) Using a guard ring (b) Grading the insulator (c) Using long cross arm (d) Any of the above (e) None of the above

Last Answer : (d) Any of the above

Compare pin type and suspension insulators on given points: (i) Position of insulator on cross arm. (ii) Position of conductor on insulator. (iii) Reaction on cross arm. (iv) Possibility of flash over due to large birds (v) Maintenance/Replacement cost (vi) Maximum voltage level (vii) Effect on height of supporting structure. (viii) Life

Description : Compare pin type and suspension insulators on given points: (i) Position of insulator on cross arm. (ii) Position of conductor on insulator. (iii) Reaction on cross arm. (iv) Possibility of ... Replacement cost (vi) Maximum voltage level (vii) Effect on height of supporting structure. (viii) Life 

Last Answer : S.No  Points Pin Type insulator Suspension or Disc Type insulator 1 Position of insulator on cross arm It is fixed on top of cross arm by using galvanized steel pin. So it is ... so to maintain minimum ground clearance height of pole increase.  8 Life Less More

What is the conductivity of molar ?

Description : What is the conductivity of molar ?

Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .

How do I purchase a product ?

Description : How do I purchase a product ?

Last Answer : From Alibaba you can purchase products by paying MASTER CARD or through bank.

What is an analog signal ?

Description : What is an analog signal ?

Last Answer : Signals whose values ​​change continuously are called analog signals. For example- voltage of electricity supplied to the house.

What is Zener Diod ?

Description : What is Zener Diod ?

Last Answer : Zener diode is a special type of diode which, like ordinary diode, not only conducts current in the forward direction , but also in the opposite direction if the voltage exceeds the level of breakdown ... diode is to use the shunt regulator and the voltage reference as the voltage of the circuit.

What is the multiplying factor of shunt ?

Description : What is the multiplying factor of shunt ?

Last Answer : Answer : The ratio of load or matte current to ammeter current is called shunt multiplying power.

What is ammeter shunt ?

Description : What is ammeter shunt ?

Last Answer : A small amount of radial coupling in parallel with the coil to increase the range of ammeter is called ammeter shunt.

What is short circuit current ?

Description : What is short circuit current ?

Last Answer : Answer : A fault in an electrical system whose current, before or after the current flows through the load, is combined with one or more phases of neutral current which causes more current to flow than normal. The current is called short circuit current.

What is a current limiting reactor ? How many types and what are they ?

Description : What is a current limiting reactor ? How many types and what are they ?

Last Answer : Answer : A current limiting reactor is basically an inductive coil which limits the short circuit current by providing inductive reactance when required. Types: 1. Based on the structure- a) Dry type ... reactor. Basbar reactors are again of 2 types- a) Ring system reactor b) Tiber system reactor

What is the method of diagnosing short circuit current ?

Description : What is the method of diagnosing short circuit current ?

Last Answer : There are three methods for determining short circuit current , namely- 1) Ohmic method 2) Per unit method 3.) Percentage reactance method.

What are symmetrical and asymmetrical faults ?

Description : What are symmetrical and asymmetrical faults ?

Last Answer : Symmetrical Fault: The same amount in each phase due to the float in the electrical system. The fault that causes hot current to flow is called semantic fault. Circuit breaker ratings are determined by ... through each fan is called an asymmetrical fault. The relay is set via asymmetrical font.

What is Basbar and Bas Kaplar ?

Description : What is Basbar and Bas Kaplar ?

Last Answer : Basbar : Basbar is basically a sheet or color of copper or aluminum. It is the job of the bus driver to deliver power to one or more lads with power from one or more cables. Bus ... is basically a combination of circuit breaker and isolator. There are fire proof walls around the bus coupler.

Why is the busbar sectionalized ?

Description : Why is the busbar sectionalized ?

Last Answer : Answer : If an error occurs in any part of the busbar, the operation of the entire busbar system will not stop. The maximum success of this system is due to the interconnection of different sections of the circuit and the smooth distribution in the outgoing circuit.

title : _

Description : title : _

Last Answer : Basbar is a type of copper and aluminum conductive sheet or mata rod , which collects electrical energy from one or more circuits and distributes that energy through one or more circuits.

Write different font names or different short circuit font names ?

Description : Write different font names or different short circuit font names ?

Last Answer : There are two main types of short circuit faults. Namely- 1. Semantic faults and 2. Asymmetrical font Symmetrical fault - a) Short circuit three phases together b) Short circuit asymmetrical fault with three ... result c) Double line to ground font d) Two phase one Circuit and third phase earth.

What is Electrical Fault ? What is the cause of the fault ?

Description : What is Electrical Fault ? What is the cause of the fault ?

Last Answer : Answer : Fault: When two or more conductors come in contact with each other while operating at normal voltage difference, the result is said to be organized. Causes of Fault: Faults are organized due to ... loss of line c) Lightning charge d) Voltage drop e) Loss of unbalance and stability etc.

What features should a switchgear have ?

Description : What features should a switchgear have ?

Last Answer : Switchgear should have the following characteristics- a) Sensitivity b) Detection ability c) Reliability d) High speed e) Durability. F) Expansion advantage g) Simplicity.

What are the components of switch gear ?

Description : What are the components of switch gear ?

Last Answer : The components of switch gear are: circuit breaker , relay , instrument transformer , housing , conductor etc.

What do you mean by switchgear ?

Description : What do you mean by switchgear ?

Last Answer : Answer : Switch gear does not mean a single corner object. It refers to the position of the electromagnetic system, including the connective , isolating , and maintenance equipment of normal activity .

What is an Earth Electrode ?

Description : What is an Earth Electrode ?

Last Answer : Puta metal part in the soil which connects to the soil is called earth electrode. Thank you all for today's electrical questions and answers.

What is Earthing Lead ?

Description : What is Earthing Lead ?

Last Answer : The wire that connects the earth continuity wire and the earth electrode is called the earthing lead.

What earthing is done in hilly areas ?

Description : What earthing is done in hilly areas ?

Last Answer : Sheet earthing is done in hilly areas. Shit electrodes are placed by digging trenches on the slopes of the hill.

What should be the size of rod earthing ?

Description : What should be the size of rod earthing ?

Last Answer : In case of iron or steel rod the diameter is 16 mm but in case of copper rod it is 12.5 mm. In both cases the length is at least 2.5 m. Is to be.

What does earth continuity mean ?

Description : What does earth continuity mean ?

Last Answer : The conduction wire that connects the earthing lead to the metal cover of electrical furniture, appliances, or wiring is called the earth continuity wire.

Which earthing is less expensive ?

Description : Which earthing is less expensive ?

Last Answer : Rod earthing is the least expensive. Because the soil does not have to be eroded, the cost is less than other earthing.

What should be the size of the pipe electrode ?

Description : What should be the size of the pipe electrode ?

Last Answer : The size of the pipe electrode should be 36 mm diameter 2 to 2.75 m long galvanized iron or steel pipe.