Three phase voltage, current and power

The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

If you have a great idea or invent something the last thing you want is someone to steal the idea. One of the things you can do is protect the intellectual...

In the previous note we looked at the approach taken by the standard to the sizing of cables and illustrated this with an example.  We then looked at one...

Two driverless and solar power vans have departed from Italy on their way to China via the silk road. During the 13,000 kM trip the vans will drive themselves...

Request to look at induction motor starting time have come up a few times on the site. Hopefully in this post, I give you guys some idea on how to calculate...

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

Induction motors are frequently used in both industrial and domestic applications.  Within the induction motor, an electrical current in the rotor is induced...

Traditionally generation of electricity has involved rotating machines to produce alternating sinusoidal voltage and current (a.c. systems). With the development...

GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:

The correct sizing of current transformers is required to ensure satisfactory operation of measuring instruments and protection relays. Several methods...