«Elektr energetika» kafedrasi «tasdiqlayman» Magistratura bo’lim boshlig’i

^a b Rao, T.S Madhava (1989). Power System Protection: Static Relays (2nd ed.). New Delhi: India Professional. ISBN 978-0-07-460307-9.

^ Singh, Ravindra P. (2009). Switchgear and Power System Protection. New Delhi: PHI Learning Private Limited. p. 151. ISBN 978-81-203-3660-5.

^ Rockefeller, G.D. (1969-04-01). "Fault Protection with a Digital Computer". IEEE Transactions on Power Apparatus and Systems. PAS-88 (4): 438–464. Bibcode:1969ITPAS..88..438R. doi:10.1109/TPAS.1969.292466. ISSN 0018-9510.

^ "PAC World magazine: Interview with George Rockefeller Jr". www.pacw.org. Retrieved 2016-01-13.

^ Rockefeller, G.D.; Udren, E.A. (1972-05-01). "High-Speed Distance Relaying Using a Digital Computer II-Test Results". IEEE Transactions on Power Apparatus and Systems. PAS-91 (3): 1244–1258. Bibcode:1972ITPAS..91.1244R. doi:10.1109/TPAS.1972.293483. ISSN 0018-9510.

^ "PAC World magazine: Protection History". www.pacw.org. Retrieved 2016-01-13.

^ Jump up to:^a b Johns, A. T.; Salman, S. K. (1995-01-01). Digital Protection for Power Systems. IET Digital Library. doi:10.1049/pbpo015e. ISBN 9781849194310.

^ "Working Group (WGI-01),Relaying Practices Subcommittee". Understanding microprocessor-based technology applied to relaying (Report). IEEE..

^ Singh, L.P. (1997). Digital Protection: Protective Relaying from Electromechanical to Microprocessor. New Delhi: New Age International. p. 4.

^ Tziouvaras, Demetrios A.; Hawbaker, William D. (October 1990). Novel Applications of a Digital Relay with Multiple Setting Groups. 17th Annual Western Protective relay Conference, Spokane,Washington.

^ Jump up to:^a b c Network Protection & Automation Guide. Levallois-Perret, France: Alstom. 2002. ISBN 978-2-9518589-0-9.