what is the difference between surge arrestor and lightning
arrestor ?

Answer Posted / pradeep vashist

Lightning arrestors limit the crest value of an impulse
voltage. When the voltage reaches a pre-determined value it
provides a discharge path to ground. It provides
a "Spillover Effect" while the Surge Capacitors reduce the
slope of the surge (rate of voltage rise) by momentarily
absorbing initial energy, then releasing it; providing
a "Dampening Effect

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1497


How to operate a ac chilar plant?

1961


How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1597


what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

1773


how many types control panel of a 132/33 kv substation

2235






How to calculate the sag on transmission Lines.

2420


What do you understand by external characteristics of a d.c. Generator?

647


How we calculate the size of ht cable for any transformer

1558


Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.

1906


If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?

1496


Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

1690


10 Mtr Hight of Lighting Arrestar how much area coverd??

2024


whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11

1437


1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4271


Can we use shunt trip coil instead of trip coil with protection relay for protection?

1311