what is lightning arester?generaly which type of used in
industeries? why its used?

Answer Posted / saiyed moinuddin

It is the device which is used for over voltage and
specially used for lighting stroke

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is p.s impedance measurement test in earthing transformer?

1848


Differenciate between circuit wiring and sub main wiring with illustrations

1767


This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

2013


List the power rating of any 5 important electrical appliances used in houses.

1575


why co incidence factor considered in transformer sizing?

1424






difference between crane drive and line drive.

1407


Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

1510


Why air circuit breaker off due to power failure?

716


In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

1855


what is the formula of starting current of 3phase and 1 phase motor???

1587


how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

1657


how calculated Transformer losses.

1576


how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

1621


What do you understand by avr?

628


Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.

1579