what is lightning arrester?

6 Answers

Answer :

In order to reduce the effect of natural lightening so that the transformer can be saved from the very high voltage and current caused by the lightning, a device or u can say a protective device is connected in parallel with the incoming terminals of the transformer which bypasses all the fault current and voltage of the lightning is called lightning arrestor
I want to add...
It is non-linear resistor device

Answer :

A protective device use to conduct high voltage surge on power system to the ground

Answer :

Lighting arrester is a device which grounding the faulty or excess currents from the atmosphere thunders.  this device's gives protection from the natural higher voltages

Answer :

It is a protective device protects the high voltage surges

Answer :

To discharge the residual capacitive voltage

Answer :

Light arrester is a protecting device which is used at substation for protecting the devices in the substation from lighting phenomenon.


Related questions

Description : How do we install lightning arrester ?

Description : What is the use of lightning arrester?

Last Answer : The lighting arrester is used to discharge the high voltage surge towards the earth by the lighting strike

Description : A thyrite type lightening arrester :

Last Answer : A thyrite type lightning arrester : offers low resistance path to surge currents

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

Last Answer : A lightening arrester connected between the line and earth in a power system protects the terminal equipment against travelling surges

Description : Have you ever felt lightning move through your body?

Last Answer : No. But I’ve won the lottery once.

Description : How large and powerful can a lightning strike get?

Last Answer : Well they’re powerful enough to produce gamma rays and antimatter; on a scale of powerful terrestrial effects, that’s pretty potent in my book.

Description : What's the closest you have been to a lightning strike?

Last Answer : answer:Very close. My house got hit and that was insane to hear and feel that. Trees on my property have been blasted but the absolute craziest was a tree that got whacked 20 feet from my tent! I ... of my house 30 feet from my front porch. Watching it frame by frame is simply stunning to see.

Description : Lightning storm outside - does turning my computer off actually lessen the chance of getting struck?

Last Answer : Preventing damage to you computer. Most likely the lighting would hit a transformer on a pole outside first. This can still fry the electronics in your house. I lost a very nice TV when lighting hit a ... . Unplug it to be safe but having it plugged in doesn't increase the odds of getting hit.

Description : Does lightning originate from the clouds to earth or earth to the clouds?

Last Answer : http://www.youtube.com/watch?v=2XwFF5idD_0

Description : I want to know what type of current does lightning consist of an ac, or dc?

Last Answer : I thought ac meant alternating current, and dc meant direct current.

Description : Are men really 4x more likely to be struck by lightning?

Last Answer : hahahahahahahahaha I love that commerical… No.


Last Answer : About 24 thousand people are killed by lightning strikes each year, and about 240 thousand more are injured. A lightning bolt is 54 thousand degrees Fahrenheit. That's hotter than the surface of the ... and will create lightning fossils. The odds of being struck by lightning are 1 in 12 thousand.

Description : For protection of rotating machines against lightning surges _______ is used.  (1) lightning arrester (2) capacitor (3) combination of lightning arrester and capacitor (4) lightning conductor and arrester

Last Answer : For protection of rotating machines against lightning surges combination of lightning arrester and capacitor is used. 

Description : Is electricity faster than lightning?

Description : Have you ever stuck out your hands and pretended that you are shooting lighting bolts from your hands?

Last Answer : No, but I keep trying to fly. Still waiting for my super-powers to mature.

Description : Mythbusters vs. Ben?

Last Answer : answer:Many stories told about deceased historical figures are apocryphal, and not intended to be actually believed. For one thing, when you examine the story carefully, what kind of supposedly intelligent person, ... 2,000 years later, the story is told that he fed 5,000. Ridiculous, of course

Description : What is meant by impulse ratio of any lightning arrester?

Last Answer : Impulse ratio of any lightning arrester is the ratio of breakdown voltage of the wave of special duration to breakdown voltage of a 50Hz wave

Description : What is meant by Lightning arrester or surge diverter?

Last Answer : A Surge Diverter is a device that is connected between line and earth, i.e, in parallel with the equipment under protection at the substation. It limits the duration and amplitude of the follow current

Description : What is the difference between the lightning arrester and surge absorber?

Last Answer : Lightning arrester limits the duration and amplitude of the follow current while a surge absorber reduces the steepness of the wave front for a particular surge

Description : Explain Horn-gap lightning arrester with neat sketch diagram.

Last Answer : Horn Gap Type Lightning Arrester: It consists of two horn shaped metal rods A and B separated by a small air gap. The horns are so connected that distance between them gradually increases towards the ... being hot, moves up naturally along the horns. So it is elongated and naturally quenched.

Description : function of equipment’s used in sub-stations : (i) Earth Switch (ii) Relay (iii) Lighting Arrester (iv) Auxiliary transformer 

Last Answer : (i) Earth Switch   It's function is to discharge the ground capacitance when line is open circuited for maintenance purpose by isolator.) Earthing switch is inter - locked with isolator from the safety point ... 3-ph, 4wire, 400V) to give supply to control room, area lighting, staff quarters etc, 

Description : Consider the following statements regarding corona :  1. It causes radio interference.  2. It attenuates lightning surges.  3. It causes power loss.  4. It is more prevalent in the middle conductor of a transmission line employing ... only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 3 and 4 only

Last Answer : Consider the following statements regarding corona :  1. It causes radio interference.  2. It attenuates lightning surges.  3. It causes power loss.  4. It is more prevalent in the middle conductor of a transmission ... 3 only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 3 and 4 only

Description : Moving air is called …………… . (a) Wind (b) Cyclones (c) Lightning (d) Storm.

Description : State True or False: (i) A bicycle tube expands when we fill air in it. (ii) Air moves from a region of low pressure to high pressure. (iii) The speed of wind can be measured by an ... called Anemometer. (iv) Thunder is a loud sound produced by lightning. (v) We should ignore the cyclone warnings.

Description : What precautions should be taken when a thunderstorm is accompanied by lightning?

Description : True/ False. 1. Wind turbines converts the kinetic energy into electricity energy. T/F 2. Local wind affects the weather. T/F. 3. Cumulus clouds are associated with rainfall lightning and thunder. T/F 4. ... rain fall. T/F 5. The warm air from the hot area is heated and moves downwards. T/F

Description : Fill in the blanks: 1. A bolt of massive lightning appeared with a rumble of ...... 2. Many years passed and the area near the tree is ........ now. 3. One by one, many ........ came out from the tree. 4. The tree said, “I did not know that people are so.

Description : Do you think Lightning McQueen would have life insurance or car insurance, and why?

Last Answer : answer:Life insurance pays out for death. Car insurance would be the equivalent of medical insurance.

Description : Should the way corporations pursue people at lightning speed with ads on the internet to the point of invading privacy be stopped?

Last Answer : Facebook is paid by those exact corporations to place ads on it. Thus its Facebook and such websites to address this. Its the price of free sites that we assume are free but in reality it isn't directly. ... coming onto my screen. Lately I have been doing this to ALL ads and see less of them now.

Description : Do you know anyone who has died in the shower when it was lightning outside?

Last Answer : I have not.

Description : What are those big lucite transparent balls with the lightning storm inside called?

Last Answer : Plasma ball/globe

Description : How many reincarnations does the Dalai Lama have to go through before he gets the power to shoot lightning out of his hands like a Jedi/Sith?

Last Answer : The reason why no matter what Dali lama they have they all die and have no power is kinda telling, wouldn’t you think?

Description : Have you, or anyone you know, ever been struck by lightning?

Last Answer : answer:Oddly No. Considering that I lived in one of the word’s most notorious Lightning Strike hotspots: The Tampa Bay area.

Description : How do people end up getting struck by lightning?

Last Answer : Lightning is attracted to metal, so don’t stand close to a pole in a thunder storm! Even if the lightning hits, lets say 7 ft. away from someone they will still feel it.

Description : Are you ready for dark lightning?

Last Answer : Is that part of the lightening sprites in thunderstorms? Already had my seat belt on for the the “E” ride @ Walt D world.

Description : What do you do if you're stuck at sea in a sailboat, and there's a lightning storm?

Last Answer : If the storm is lightening, then there’s no need to worry. It’ll pass soon.

Description : How many electron volts power the release of a large lightning bolt?

Last Answer : answer:Are electron volts the same as volts? I’ve had this question before too and it causes me to appreciate the forces of nature. It must take millions of volts to create an arc from clouds thousands of feet in the air to earth, given the resistance of air.

Description : New found powers after being zapped by bolt of lightning, how would you use them?

Last Answer : Sell my ability as an alternative energy source. Retire wealthy and pay my kids’ tuition.

Description : Lightning struck my house, again. Do you have any ideas?

Last Answer : Does your house not have a ground? You might wanna read this.

Description : Are there more lightning bugs this year?

Last Answer : I haven’t found that to be the case here on the out skirts of North Carolina.