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Hi, i am just doing some revision on three phase and ive come across a question which i would just like some clarification on the correct answer please Question - A balance star - connected three phase load of 10ohms per phase is supplied from a 400V 50 Hz mains supply at unity power...

Hi, was wondering if anyone can clear this up for me, i am currently in my 3rd year of college (nights) training to become an electrician on the course - City & Guilds 2330 Level 3 Certificate electrotechnical technology My next course i was thinking of doing was the - City & Guilds...

Hi, just a quick question, i am just revision through some of my notes and just need some clarification. The question : A coil has a resistance of 30 ohms and a reactance of 40 ohms when connected to a 250V supply calculate the Impedance and current. Ok so 302 + 402 = 502 for my impedance...

Good Afternoon, Finger crossed someone can shed a little light on my problem as i am completely miffed and out of ideas :( Basically i have a single 1 way light fitting in my bathroom operated with a simple pull cord, i have replaced the pull cord with a Occupancy Sensor 360 degree PIR Light...