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  1. amtprot

    Distance relay lockout on weak end indeed.

    Weak end DRhttps://files.engineering.com/getfile.aspx?folder=9982a373-9af6-4562-9225-10b8d79e49c5&file=RHN_BWN_1_DR_21_May_2018_13.49.55.000.cfg
  2. amtprot

    Distance relay lockout on weak end indeed.

    Directional E/F I> 0.2 A, TMS 0.3 IDMT. Issue is that I didn't want any lockout on weak end.Either distance should trip on aided scheme PUR which didn't sense the fault thus Directional IDMT E/F operated and my supply effected.Apart from the above 2000Amps. in neutral of line was due to...
  3. amtprot

    Distance relay lockout on weak end indeed.

    Further data on the fault is CT ratio 800/1 A ,. Single pole Auto reclose setting enabled. SP AR Dead time 1 Sec.
  4. amtprot

    Distance relay lockout on weak end indeed.

    Distance relay didn't Autoreclose (1P) on weak end due to non sensing of C- Phase (ABC phase) fault 16000Amp.on 10 Km long 220 KV line by distance feature Micom P443 relay but IDMT Earth fault feature operated in 900mSec resulting in lockout before dead time of 1P AR 1 Sec.Although source end...
  5. amtprot

    Tracing the 3-phases of a 3-phase generator

    If you are on Generator side,then it is must for you to have synchro check before connection to Grid otherwise not only phase sequence but angle between Grid and Generator will pose problem.

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