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  1. yyoungengineers

    choosing a topology for power supply

    Thank you Dhambley, does a full-bridge converter have any advantages besides providing isolation and a higher power rating ? Because, I want to compare a few topologies instead of just focusing on only a buck-converter. And IRstuff: I meant buck-boost since it can also step down the voltage...
  2. yyoungengineers

    choosing a topology for power supply

    well, i know thast i will obtain problems with the duty cycle but if we suppose the output would have been fixed to 500 V .In that case it would be possible to use a buck or buck-boost right?
  3. yyoungengineers

    choosing a topology for power supply

    i forgot to mention i want to design a dc-dc converter.
  4. yyoungengineers

    choosing a topology for power supply

    Hi everyone, I want design a 5 KW converter with input voltage of 600 v and output voltage varying between 0-500V. Up til now, i have dived into the literature to look which topologies are possible. It seems like for high power applications ,the full bridge converter is widely used, but the...
  5. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    Thanks for the comments. I have also came to that conclusion, the 150 KVAR bank will only raise the voltage with 0....% I always thought that overcompensation leads to overvoltages, they seemed like a synonym to me. please provide me an article where the difference is elaborated.
  6. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    No that is what i expected such a voltage rise would cause considerable high voltages. But in my simulations the voltage rises from 12.027 KV to 12.06 KV, thus a voltage rise of 33 V only. The voltage on the line are 12KV L-L and the capacitor are 150 kvar (50 KVAR per phase). I don't want to...
  7. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    You have misunderstood me....What i meant is that when i simulate the network, the voltage rise is not significant. The calculated voltage rise would not have caused the overvoltage that were experienced by customers. Now that i am trying to place capacitors into the network, i want to prevent...
  8. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    Thanks for the comments. It is not possible to get the load precisely. The data that is available includes transformer rating , line parameters, but the load is not monitored. Several moment measurement are taken with the use of high voltage meters. However, the loads are constantly fluctuating...
  9. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    How would you know to what extent the voltage rises when the inductive load decreases? What could e a solution when network restoring?changing the tap of the transformer where the customers are overcompensated ?putting the capacitor out of service?
  10. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    I can't understand this a 100% , could you elaborate on the part of the voltage drop? Can i prove this with a equation.
  11. yyoungengineers

    What is the effect of capacitor voltage rise effect when load shedding

    HI everyone, I am studying how to place capacitors in a 12kv distribution network and i have a couple of questions that i can't seem to answer with the literature i read. Lets consider a simple example,suppose you place a fixed capacitor on a 12KV line that is compensating 3 loads. see...

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