How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
HAL,
1445What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.
3 8239We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?
5 10273How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?
13289When should I use earth leakage circuit breaker for incomer and when should I use it for each feeder seperately?
1 2975How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks
3 9282the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.
6 53261.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.
1529Post New Electrical Engineering Questions
what is the standard duration after failure EB power
how to deside the capacity of chock for drive?
What is the actual calculation for transformer short circuit test?.
Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....
WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB
primery try cell?
Testing procedure of DG alternator stability test
HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
How to assume answer to electrical questions
what are the things that can cause a three phase motor to crawl?
Under wat condition statcom operates as an inductor for the transmission line?
What is the difference between earthing,ground&nutral?
If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.
we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???
physical identification of HT & LT panel
