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  1. afzumannu

    UPS INV OUT TOL

    I am hoping from the Engineers @ Parchie, @ 3DDave,@JWR01 please come forward and reply Thanx
  2. afzumannu

    UPS INV OUT TOL

    @3DDave yes there is one input source only, @ Parchie @ JWR01 AC Filter capacitors 3no's 200µF-250VAC opened and checked its value is ok, Actually which capacitor failed? you people Mentioned about capacitors There is DC capacitor also 2000µF and some other filters too, please check the attached...
  3. afzumannu

    UPS INV OUT TOL

    @Kiribanda, UPS both source are same, UPS is just power ON and it goes to Bypass mode with the above message, may be something in Electronics, but how to contact manufacturer because it's old already.
  4. afzumannu

    UPS INV OUT TOL

    @Kiribanda, Bypass and main input source is the same supply. also we disconnected the load already, this UPS is in idle condition without load, just input supply and it gone to bypass mode with the same message A13 "INV OUT TOL", is anyone face the same issue before?
  5. afzumannu

    UPS INV OUT TOL

    @Parchie Yes this Manual we have already, I just want to know how to fix it? Before anybody face the same trouble?what should we should action to solve this trouble.
  6. afzumannu

    UPS INV OUT TOL

    Dear, 40 KVA Astrid UPS giving Alarm A13 "INV OUT TOL" ( inverter output voltage out of tolerance), Also UPS going to Bypass mode. What can be the possible causes? How we can fix this problem? Thanks in advance
  7. afzumannu

    Checking or Testing of 33 KV Aircore Reactor of Filter bank circuit as it is tripping by Thermal pro

    Please consider the Attachment first Slide only
  8. afzumannu

    Checking or Testing of 33 KV Aircore Reactor of Filter bank circuit as it is tripping by Thermal pro

    Dear All, We Have 33 KV filter bank circuit for Compensation plant which include Line CT, Reactor and capacitors bank, we are facing trouble as this one phase circuit is tripping with Thermal protection and others are Ok, reactor value 11.85mH, Line CT 1000/1, Unbalance CT 10/5 CPR-04 relay is...
  9. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit thread238-468572

    Dear Anoter, the Attached file is your last year complete file which you solved with another circuit and parameters and it was correct. same file I am using for this circuit and just eliminated the Resistance circuit and Put other parameters. hopefully it will work fine. please check the last...
  10. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit thread238-468572

    Last year you solved this problem with another circuit and it is correct calculation, it was matching with Matlab result, I am attaching the Last year same file.https://files.engineering.com/getfile.aspx?folder=39cb3c5c-f132-49de-ba90-bd5a328d6c55&file=L_and_C_filter.xlsx
  11. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit thread238-468572

    @ Anoter, I prepared excel workbook simply and Eliminate the Resistance, because I am looking Finally for I0 only between 2 star, and as per my excel worksheet you can understand i simplified the circuit and the result also coming nearby correct, last year you also send the file with this...
  12. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit thread238-468572

    @Anoter sketch is like that, I mentioned the 12 capacitance values Red and Blue colour, Resistance in the circuit, if we calculated in series Star1 R phase R=126.15µf & 44.7343434774307 µf then it will 33.0237242 µf, so for all it will become 6 Values only and we can put in Formula which we...
  13. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit thread238-468572

    thread238-468572, Dear Anoter, due to Affected by Covid-19 last year i stopped posting the reply of the Thread 238-468572, can we remove the resistance from the attached circuit and Calculate the neutral current same as you did in previous circuit, in place of 12 microfarad values. can we make...
  14. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    Dear@ Anoter, I understand its same file and is for user understanding, but my Question is that RLC circuit why IoA & IoB? in LC circuit it was Io only,if IoA and IoB also here it should be Equal if i am not wrong same like LC circuit. Finally I am looking for Io ( unbalance current ) in between...
  15. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    Dear@Anoter and all the Engineers here, i was bit busy as same Filter Bank trouble in Plant, lot of capacitors blown, this LC Circuit it was unbalance 30% trouble time, but with the help of you ( Anoter) formula we Rearrange the capacitors and bring down to 1%, thanx once again to the entire...
  16. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    @ thanks, please share the file..I want to see that.
  17. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    Ok sir, please send the updated file..Thanx
  18. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    Dear @ Anoter please share the updated file related to Resistance circuit,how much you prepared will be Ok and appreciatable. Thanx
  19. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    @ Beyond till now if you prepared any files regarding this circuit excel file, please do share, let me also study about it. thanx
  20. afzumannu

    Neutral Current calculation in two star connection in LC Filter circuit

    @ Beyond, dear you are true, I can imagine how it is hardwork for someone, I am also thankful for all the guys here are very good especially you.but if you can get any clue or solve it let me know and please do share. Thank you once again.

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