Dear all
I need some guidelines how to calculate the failure rate for PFC film capacitor.
I know that increase in ambient temperature and increase in voltage, will increase the failure.
Also I think that the current and frequency of the current will have an effect on the failure rate. I just...
I hope some of your can help
I am currently designing windturbine controllers for a chinese manufacture
But can't find anything regarding grid codes.
does anyone in this forum know something about this?
I have to design a switchgear panel that can be tested according to the specifications in IEC61641.
basicly the explosive force of the Arc should go somewhere where no people are, and the arc should stop on its own.
I have two questions:
Does there exits any standard that defines the power of...
Do anyone know how the rotor resistance in a induction machine changes during temperature change, frequency change and change in slip?
I need to know a function that descripes these relationships.
Hope you can help me.
Best regards
Robert
I been asked to find out how many 240mm² 90°C single conductor cable should be used for a 2150A generator at 690V, according to NEC standard. I normally use IEC standard.
the problem is, that have difficulty to find the ampacity for single conductor cables. The values i find is much lower than...
