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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, ...
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 ...
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 ...
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 ...
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 ...
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 ...
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