Please Explain Relay settings

ericsson

ericsson

@ericsson-QCnbLK • Oct 26, 2024

We are using 10 MVA 110/11 kv Transformer for 6 MW power plant. The transformer relay setting has given (7sj621 siprotech siemens multifunctional relay)

CT ratio 75 / 1 A

Relay code settings

51 Ip> 0.8
Ip>> 13

What is the original tripping value and how did we calculate it.......
please Explain

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  • aj_onduty

    aj_onduty

    @aj-onduty-BvuwMK Aug 29, 2010

    A better scrutiny of the data sheet, or even a simple call to the vendor will do.(I don't want to sound rude, but this is what I do).

  • d_vipul

    d_vipul

    @d-vipul-wP6Syg Aug 31, 2010

    ericssonWe are using 10 MVA 110/11 kv Transformer for 6 MW power plant. The transformer relay setting has given (7sj621 siprotech siemens multifunctional relay)

    CT ratio 75 / 1 A

    Relay code settings

    51 Ip> 0.8
    Ip>> 13

    What is the original tripping value and how did we calculate it.......
    please Explain


    Please provide more information to provide you solution........Sorry Friend this information is not sufficient to solve your problem.......
    For more details #-Link-Snipped-#........
    To do settings in SIEMENS SIPROTEC RELAY you need to install DIGSI 4.80 Software with 7SJ61 Device Driver...................
    If you are still facing problems share your problems here I am ready to answer your Query........................

    Regards,
    VIPUL

  • sunnypatel

    sunnypatel

    @sunnypatel-1Y2moh Nov 6, 2011

    relay use for haandeling high power

  • Tammy1949

    Tammy1949

    @tammy1949-wTE1I0 Nov 6, 2011

    A better scrutiny of the data sheet, or even a simple call to the vendor will do.(I don't want to sound rude, but this is what I do). ​

  • aj_onduty

    aj_onduty

    @aj-onduty-BvuwMK Nov 6, 2011

    Tammy1949A better scrutiny of the data sheet, or even a simple call to the vendor will do.(I don't want to sound rude, but this is what I do). ​

    May I know the reason why you re-posted the same statement which I posted? I hope that you would have seen this

    aj_ondutyA better scrutiny of the data sheet, or even a simple call to the vendor will do.(I don't want to sound rude, but this is what I do).

    This is post no. 2 of the same thread. Hope you... well, nothing. I believe that my reputation in CE is a bit tainted. Lets hope I won't need to prove it here! This is disturbing as it really makes no sense.