Hi, we have a VT thatsits on top and plugs into the incomer on a 33KV switch board. The nameplate says ratio 33000/110v,
and VA Phase - 200. There is 3 ht fuses feeding transformer marked A,B,C,N . My question is, 200va per phase seems quite small if I = P/V (200VA/110V)for secondary as the...
Well thanx,
so in answer to original question ,what is the correct answer!! about one side being grounded, and yes we used to short out any un-used ct secondarys to prevent high voltage if the circuit was to be broken at all.Instead of whats wrong, what is correct answer? Please.
From my experience, it is fairly common place to have a (LOCAL/AUTO/MCC)selector switch on the main control panel that you can switch to the required operation.Local to the motor then, a main isolator to make safe isolations with a stop/start to operate motor from there when local operation has...
I was led to believe that under normal operation the current would circulate through circuit of lowest impedance ie meter etc, earthing one side would drain any build up to ground ie not let voltage increase build into destruction mode!!
HI,I WORKED FOR A PANEL MANUFACTURER FOR YEARS, AND WE ALWAYS GROUNDED THE SECONDARY ON ONE SIDE.THIS WAS TO STOP THE TRANSFORMER BURNING OUT IF ACCIDENTALLY LEFT OPEN CIRCUIT.ALSO HIGH VOLTAGES WOULD BUILD UP IF CT LEFT OPEN, INSTEAD THOUGH IF LEFT OPEN THE SIDE GROUNDED WOULD PROTECT THE CT.
Hi,
does anybody know where resources are for info on
18.5 MW open cycle gas turbines.Just want to know basic operating principles. This applies to the electrical generation industry,also basic principles of coal fired steam generation of electricity resources would be good.
Thanx in advance.
