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As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??
5 7551In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?
2 12920I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????
1 5411In 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.
2310what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes
ABB,
10 72353What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?
3 35265Post New Electrical Engineering Questions
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
why electron produce magnetic field when it is in motion?
Power Factor Correction Panel (Manual & Automatic)
What are the applications of autotransformers?
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
What will be result if we connect LT votage to the terminal of HT motor?
determine two methods to find loose connection in operational electrical system?
3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating
In Generator How suction compression power and exhaust works ?
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?
why does the magnetic balance tests at transformer?
