Questions tagged [field]
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72 questions
0 votes
0 answers
65 views
How to draw stability limit curve of synchronous generator?
I am looking for equation to stability limit curve alongside inverted v curves of a synchronous generator. Here is an example of this curve from page 483 of the book: "Electric Machines" by ...
2 votes
3 answers
367 views
Measuring magnetic fields in the 1-10 Hz range
I apologize in advance but I am a chemist just venturing into the world of electrical, so you may need to explain to me like a 5 year old. I have a chemistry project that involves the use of AC ...
- 29
4 votes
3 answers
1k views
Why is it not standard practice to integrate the output of an antenna?
This is a follow up question from my question answered here: Why does a loop antenna not measure the differential magnetic field? Essentially I just found out today that we are actually measuring the ...
- 155
2 votes
3 answers
815 views
Does infinite magnetic permeability (e.g. for an ideal transformer) violate conservation of energy?
The ideal transformer is supposed to have infinite magnetic permeability. Creating infinite magnetic field lines from a finite applied field sounds like... a violation of conservation of energy or ...
0 votes
3 answers
276 views
Contradiction in Gauss's law?
I have a question that my teacher was explaining but the question seemed to contradict the real world. I know it has got to be my understanding that is flawed but I cannot seem to get it. So here goes:...
0 votes
1 answer
975 views
BLDC Hall Sensor Angle Offset
I'm running a BLDC motor and I'm working on my own Software. I want to run the BLDC Motor with field oriented control, that's why I need a precise electrical angle. I'm using three hall sensors in the ...
- 1
2 votes
1 answer
691 views
Calculate the active and reactive power of the connected load after field increase in synchronous generator
A 3-phase synchronous generator connected in Y configuration has the following given parameters \$V_L=38kV, R_a=0.3\Omega,X_s=2\Omega, S=360MVA, cos{\phi}=0.83\$ Where the parameters correspond to ...
-1 votes
2 answers
492 views
Why is the magnetic field not blocked by the copper wires in a current transformer?
When I want to protect an electronic board from a magnetic field generated by a transformer, I put a circle of vias (as a jail grid) connected to GND planes to stop the magnetic field. How does a ...
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