hi all , can anyone give me guideline about quadrilateral distance protection calculation in detail. 2

[Yogi3377]

hello respected all
I need some calculation docs. regarding distance protection of tr.line.specialty quadrilateral distance calculation of practical line.please provide me some original line calculation for all four zones and for phase fault and ground fault.please guide me how all zone phase reach and ground reach calculates, how to calculate arch resistance ant tower footing resistance.how Ko factor calculates.

I Googling a lot and I found many articals on Google like Siemens 7SA513,abbREL ,GE D60 relay.but i ndeed one practical and original calculation docs.help will be greatly appriciable.

Thanks in advance

yogi parmar

 

[odlanor]

there is a siemens book - Numerical Distance Protection - Gerhard Ziegler

 

[collies99]

Schweitzer has an application handbook for their line protection relays.
SEL-421 can be downloaded at selinc.com, it provides example calc how to set their relays.