where they are using surge arrester and lighting arrester?
how they connect? what is the purpose of that?
Answer Posted / gopal agarwal
SURGE arresters are used for arresting i.e. controling
lightining surgs which are accured during clouding.these
lightining surges are of very high voltage ranges such as
many times greater than the rating of equipments ,which will
damage them and hence these are used at both sides end of
electrical equipments for protection.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what is the use of current transformer in power transformer secondary side.?its connectyed in WTI
which pump used in STP
how to define tell me about self
Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
How can we findout the maximum efficiancy of Transformer? At which load?
Explain the advantages and disadvantages of hydropower plant?
What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr
what is allowable ac mixing in dc
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
how to calculate the battery AH
What Is HO factor in power selection
please send me previous year questions of jspl through which i could prepare myself for the test.
what are carbondioxide and dcp used in fire extinguishers
How to calculate impedance volt in Transformer?