Abstract: In the high voltage direct current (HVDC) systems, the measurement of DC current is very important for monitoring HVDC control and protection purposes. The zero-flux current transformer is a ...

The flashing is thanks to LEDs with a built-in, integrated flashing circuit and the nasty noise comes from a piezoelectric buzzer — both are available from electronics stores that sell ordinary LEDs.

Just fill the bean hoppers, of which there are two, so you can have decaf in one and standard in the other or beans suited to different types of coffee in each. Then fill the water tank and select ...