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Did you know that most of senior EEs and sparkys still prefer to use fuses (wire or ceramic) instead of MCBs especially for buildings with many electrical appliances or expensive machines due to its higher realibily & simplicity compared to the latter. Just have a look at your old school's MCB & switchboard
Hello and thanks for the video and explanation on inverters. I am looking for a way to operate a 120AC relay coil from a 110VDC signal using < 1 amp. Is there an easy way to accomplish that? Thanks
I have an issue where when the brushes are touching the space between the two commutators that the motor does not self start. Is there a way to fix this?
I've always wondered how 60hz (50hz in Europe) would be maintained during a sudden wind gust. Thanks for your explanation of a device to rotate the field to maintain proper frequency. I would imagine that same device is used to keep each wind turbine in phase with the grid. I prefer to call a machine that generates AC an alternator. Maybe in Europe everything is considered a generator. Here in my area, (Oregon, USA) the wind turbines are just a dog and pony show. They sit idle over 1/3 of the time, create electricity about 1/3 of the time, and use electricity, from our vast hydro-electric system, to rotate the turbines and make them appear to be producing electricity the rest of the time. Unfortunately, this scam is giving the greenies ammunition in their argument to remove the dams from the Columbia River. If that happens, we'll be screwed because those wind farms will never be able to supply the amount of electricity that the dams are producing.
Awesome explanation! Thank you so much! Question is, can I add a subpanel for the purpose of using more amps or is total amount of amps being controlled by the main disconnect breaker?
In the Power Triangle section, I think the first trigonometrical relationship may be wrong. Shouldn't the True Power = Apparent Power x cos theta? (Not the Reactive Power x cos theta, as stated?)
