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How does your country evaluate power quality (standard procedures)? [on hold]

How does your country evaluate Power Quality? Do you have a standard procedure available online? I'm working on my final engineering project regarding the development of a PQ monitoring, assessment, ...
1
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0answers
41 views

Maximum power transfer theorem [duplicate]

Im very stuck on where to go with this question. The examples in class used complex numbers, where as this doesn't seem to need them. Im aware that Zs = Zl, but does Zl=Cl+Rl? Any help with how to ...
0
votes
2answers
136 views

Best way to power 120 VAC fog machine with DC?

OLD: I have a 120 VAC 400 W fog machine. I want to mount this on a robot that can supply 12 volts. Can I just reuse a $10 car inverter from Amazon or is there a better way to do this? UPDATE: So I ...
1
vote
2answers
241 views

Permanent magnet synchronous motor (PMSM) equivalent circuit

I am trying to model a PMSM (permanent magnet synchronous motor) in LTspice and in order to do so I need to form an equivalent circuit. Through some research I believe the circuit should be formed in ...
0
votes
1answer
156 views

Synchronous Motor Power and Frequency Relationships

I'm having a difficult time trying to understand what effect the frequency of a power supply has on the power of a synchronous motor. For example, if the supply frequency were to increase from 50Hz ...
0
votes
1answer
492 views

What kind of motor is used in electric room heater?

I did enough surfing to know about the kind of motors used in electric room heater, but not able to finalize. The principle seems like working of an induction motor with a electromagnetic stator but ...
0
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2answers
136 views

What is Waveform of current in rl series AC circuit when operated for first time i.e. from time t =0?

(https://i.stack.imgur.com/fpWP4.jpg) What is Waveform of current in rl series AC circuit when operated for first time i.e. from time t =0? Is it 0 from 0 to 90 degree
-1
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2answers
2k views

can dc voltage and ac voltage flow on same conductor at a same time?

I want to know dc and ac voltage flow on same conductor at a same time ?
0
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2answers
71 views

AC Current confusion

when an AC generator generates current it alternates, so does both terminals of ac generators has current means both are live wires ?