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- เผยแพร่เมื่อ 18 ต.ค. 2024
- #electric #engineering #ship #marine #electronics #shock #technology #electrical
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• Difference between shi...
I've explained difference between our home vs ships electricity please watch full video
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Thank u sir
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When In ship electric voltage is red 220v yellow 220 totally 440v given iron box will be damaged
So I think red wire 110v and yellow 110v total 220volt to safe tha iron box is well good working.....
How earthing done in ship?
I didn't understand the concept of frequency. So frequency is not rpm but say 50 rpm is taken as a cycle and 500rpm = 10hz. Is it like that?
Bro here have a formula relation between speed and frequency. I. e Ns= 120f/p, here you can take p= poles 4 , f= 50 hZ then speed Ns value = 1500 rpm. If you take f = 60 HZ then Ns= 1800 rpm. If you vary the frequency speed also vary.
3:08
you said when voltage increase current will decrease!
but how?
Power=Voltage×current
=>Power
_____. =Voltage.
Current
Voltage is inversely proportional to Current.
I hope i am correct if not plz correct me.
how its possible to increase motor speed without changing poles in motor..?
By increasing it's frequency.. maximum you can increase like 100 to 150 rpm.. but it's not advisable to increase rpm more than its rated. You'll get heat problems.. if you want to increase the speed of your Machinery you can add gears.
Hevy ht motors use tha vfd panel
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