Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1981-04-13
1982-12-28
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
340651, 340661, 361 85, G08B 2100
Patent
active
043664741
ABSTRACT:
A system for identifying which of the phases of an N-phase electric-power transmission network has experienced an electrical disturbance. For each phase there is produced a first signal representative of the transient variations of an electrical parameter of the respective phase, or of a linear combination of at least two of these parameters. A set of N second signals is generated from the product of two linear combinations of at least N-1 signals selected among the first signals. The sum of all coefficients for each linear combination is set to zero, with each of the second signals being related to a given phase. Each of the second signals is then integrated to produce a set of N third signals associated with the respective phases. A fourth signal is generated by combining all of the N first signals in a symmetrical manner with respect to all of the first signals, such that the fourth signal is independent of the associated phases. The fourth signal is compared with each of the third signals to produce comparison signals related to respective phases; the faulty phase is identified in accordance with the comparison signals thus produced.
REFERENCES:
patent: 3401308 (1968-09-01), Darke
patent: 3626281 (1971-12-01), Souillard
patent: 3641394 (1972-02-01), Hirose et al.
patent: 3783341 (1974-01-01), Beckwith
patent: 4007401 (1977-02-01), Kimmel et al.
patent: 4053876 (1977-10-01), Taylor
patent: 4241336 (1980-12-01), Schonken
patent: 4251766 (1981-02-01), Souillard
patent: 4301491 (1981-11-01), Gryctko
patent: 4333050 (1982-06-01), Yeasting
Caldwell Sr. John W.
Enertec
Gaudier Dale V.
Myer Daniel
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