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if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?
1792why should small green grass ans small plant should not be there inside the transformer Yard in the factories
1684ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?
1978Hi, I'm running plastic reprocessing company where all motors are running only in delta. Due to that when I use start my 30 hp motor my transformer gets fuse. Where it happens two times a day. I gt a suggestion from a person about Automatic Power Factor Controller APFC. Is it useful for my problem??? Or is der any other way for solving this problem?? Upgrading the transformer is difficult. Pls give Me ur suggestion. Waiting for ur reply.
2 2842What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?
SRM,
1914Post New Electrical Engineering Questions
which type of motor is used in automatic swing gate
How to calculate loses in transformer of 160 KVA ?
If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?
i am gng to visa interview this july i have 4 backlogs gre 1010,toefl 75,pls give me the tips pls pls
i have 3500 amp load and select current transformer and perches.how i calculate .please understand
what is high and low cut off voltage of BB and DG at SPS????????
What is the de rating factor of cable? What is the importance of the de rating factor in cable select
which network topology offers the greatest level of tolerance?
What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?
can i connect REF and Differencial relay in 1 CT core for transformer protection?
what is the working principle of a DG Set, Alternator, & exiter
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers
When will you multiply and devide with derating factors to the actual value while sizing the cable?
what are the advantages and disadvantages of oil filled cables over XLPE cables
