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Lattice steel tower consist of:-
1- Main members.
2- Bracing members.
3- Redundant members.
Steel Bracing is the connection between main members of lattice steel tower.
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∙ 11y ago
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What is ACSR cable?
Aluminium Conductor Steel ReinforcedOuter strand - AluminiumCenter strand - steelACSR having high conducting capacity usually used in overhead transmission line to carry high voltages.
Turnkey transmission line projects in the Philippines?
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What is charging current in transmission lines?
Any two conductors separated by an insulating medium constitutes a condenser or capacitor.In case of overhead transmission lines, two conductors form the two plates of the capacitor and the air between the conductors behaves as dielectric medium. Thus an overhead transmission line can be assumed to have capacitance between the conductors throughout the length of the line. The capacitance is uniformly distributed over the length of the line and may be considered as uniform series of condensers connected between the conductors.When an alternating voltage is applied across the transmission line it draws the leading current even when supplying no load. This leading current will be in quadrature with the applied voltage and is termed as charging current. It must be noted that charging current is due to the capacitive effect between the conductors of the line and does not depend on the load. The strength of the charging currents depends on the voltage of transmission, the capacitance of the line and frequency of the ac supply. It is given by the expressionSignificance of Charging currents:Capacitance effect (responsible for charging currents) of the short transmission lines are negligible. However they are significant in medium and long distance transmission lines.In long distance transmission lines, during light loaded conditions receiving end voltage will be higher than sending end voltage. This is because of the charging currents and capacitive effect of the line
Why is a sag provided in the transmission line?
Sag is provided in transmission lines in order to lessen the tension of the transmission lines. Sag literally means to be bend in shape. In overhead transmission lines , the difference in level between points of supports (towers or utility poles) and the lowest point on the conductor is called a sag. Explanation: While erecting an overhead line, it is very important that the conductors are under safe tension. If the conductors are too much stressed between the supports ( towers, utility poles), then the stress on the conductors may reach to an unsafe level and the conductor may break due to excessive pressure ( i,e tension). in order to permit safe tension in the conductors, the conductors ( i.e the transmission lines) are not fully stretched but are allowed to have a dip or a sag.
What is pg clamps in transmission line?
pg clamp is known for parallel groove clamp,especially used in transmission line to hold transmission conductors in parallel.
Why we can't send current or voltage without transmission line?
Well, there is no way of doing it without an overhead or underground transmission line.
How can move the train with one transmission line?
There are always two. Live in the overhead line and neutral/earth in the tracks in contact with the wheels.
What is the difference between overhead transmission line and under ground transmission line?
Um. One is hung above your head on telephone poles and the other is ran underground in conduit? Unless you meant something else? Also burying cable costs ~10 times as much for transmission lines as overhead. It also usually has a lower power carrying capability, since it cannot dissipate heat as readily as an overhead conductor.
What is an overhead line?
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (commonly multiples of three) suspended by towers or poles.
What is ACSR cable?
Aluminium Conductor Steel ReinforcedOuter strand - AluminiumCenter strand - steelACSR having high conducting capacity usually used in overhead transmission line to carry high voltages.
Describe the various methods of reducing corona effect in an overhead transmission line?
1. by increasing conductor size. 2. by increasing conductor spacing.
Will a 1995 Dodge Neon motor fit into a 1997 Dodge Neon?
If by "motor", you mean "engine", then yes: as long as it is the same engine: SOHC* automatic transmission with SOHC automatic transmission; DOHC** automatic transmission with DOHC automatic transmission; SOHC manual transmission with SOHC manual transmission. Make sure all the fittings and connections line up. All Neons 1995 to 1999 are 2.0 liter 4-cylinder engines. *Single OverHead Camshaft **Dual OverHead Camshaft
What is the purpose of insulator in overhead transmission line?
Overhead lines are uninsulated, as they depend upon the air to provide insulation. However, they must still be insulated from the towers or poles from which they are suspended. This insulation is provided using glass or ceramic insulators. The greater the line voltage, the longer the ceramic insulator, or the greater the number of glass insulator 'dishes'.
What are old powerlines along railrd tracks ,made of?
powerlines mounted on pylons, see Overhead power line. For lines carrying information, see Overhead cable. An overhead line or overhead wire is used to transmit electrical energy to trains, trolleybuses
How do you change transmission line?
how to fix a transmission without taking it a part how to fix a transmission line
Where is the transmission modulator valve in 2000 Monte Carlo SS?
The vacuum modulator is on the front of the transmission. The modulator is a round valve and should have a steel line running from the top of the engine(next to the throttle body) down to the valve.
Do you get DC current directly from the transmission line?
Only if it is a DC transmission line.
