explain working principle of earth leakage relay

2866

what is the differences between microprocessor and general purpose computer

1469

i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

1419

what is the voltage between earth to neutral in lift.

1181

In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1444

What is the form name of 'c' license, I want to download in web

1234

we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1449

is IS says that neutral should be brought to switch box. and this one is a recomended practice

1272

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

1389

What happens to a motor if it is connected in Delta connection

422

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

1638

HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

1530

what are the different kind of cables used for transmissions?

547

If rotor works in clock wise what happens

1242

A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

959