1.what is the basic difference between surge arrestor and lightning arrestor a

1.what is the basic difference between surge arrestor and
lightning arrestor and where we use it.
1.what is the difference between metal oxide without gapped
lightning arrestor and with gapped lightning arrestor

Question Posted / senthil

2 Answers
6584 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. ..

Answer / v.sugumar- kurinjipadi-cuddalo

surge arrestor installed in indoor application like SWG
panel, HT motor termination box and etc..Lighning arrestor
installed in out door,example: top of building,and it is
connected to earth, incase of lighting air terminal will be
atracted by lightning and it is grounded.

Surge arrester installed in the power line, incase of hi-
sugre in the line, surge arrester (MOV) metal oxide
verister will conduct to the ground, and it will return
back to normal state. MOV during normal state the
resistance is high, when the surge incresed above the
certain limt it wil reduce the resistance.

Is This Answer Correct ?

4 Yes

0 No

1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. ..

Answer / eee

surge arrestor: these are capacitive/ solid state devices
which prevents sudden rise in voltage (max 2Vrated)
lightning arrestors: these are nonlinear elements, provides
high impedance in normal working, very low impedance at very
high voltage (lightning)....
withgap metal oxide will have higher voltage carrying
capacity. then the without gap MO.....

Is This Answer Correct ?

3 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

i completed my b.tee(eee) in 2009, but i did not join any job, i joined in my father business, now i want to join any good job, please suggest any course for me

1 Answers

what is ground clearence in transmission system.is it varies wit conductor size,height of poles,span.

1 Answers

What do you mean by cogeneration? What its working principle?

0 Answers

what is the speed of mixie?

5 Answers Keltron, TCS,

what is the impedence

1 Answers Al-Othman,

when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers

what is cogging and crawling

20 Answers ABB, Ashok Leyland, Bharat Bijlee, BMRCL, MN Dastur, Siemens,

What is the impact of MCCB & MPCB on Distributed Control System?

6 Answers

what is the use of permanent magnet generator in exciter

0 Answers TATA,

PLZ SEND ME SOME UNIQUE PROJECT OF ELECTRICAL ENG (B.TECH)

0 Answers

directional relay is typically used to respond in fault condition who it can be used just as reverse power protection which purely senes direction reversal to operate a circuit breaker?

1 Answers

Why P.f. of the system decreases when it is connectect across induction motor? & how to maintain the p.f. of system to unity.?

6 Answers Reliance,

For more Electrical Engineering Interview Questions Click Here