RO84233B1 - Apparatus for measuring the non-symmetry level of three-phased currents - Google Patents

Apparatus for measuring the non-symmetry level of three-phased currents

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Publication number
RO84233B1
RO84233B1 RO109235A RO10923582A RO84233B1 RO 84233 B1 RO84233 B1 RO 84233B1 RO 109235 A RO109235 A RO 109235A RO 10923582 A RO10923582 A RO 10923582A RO 84233 B1 RO84233 B1 RO 84233B1
Authority
RO
Romania
Prior art keywords
current
values
currents
block
measuring
Prior art date
Application number
RO109235A
Other languages
Romanian (ro)
Other versions
RO84233A2 (en
Inventor
Ioan Negrea
Original Assignee
îNTREPRINDEREA DE RETELE ELECTRICE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by îNTREPRINDEREA DE RETELE ELECTRICE filed Critical îNTREPRINDEREA DE RETELE ELECTRICE
Priority to RO109235A priority Critical patent/RO84233B1/en
Publication of RO84233A2 publication Critical patent/RO84233A2/en
Publication of RO84233B1 publication Critical patent/RO84233B1/en

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Abstract

Inven'ia se refera la un înregistrator al gradului de nesimetrie a curentilor triffazati din punct de vedere a sarcinii si a timpului cît curentul de pe o faza se mentine într-o gama de valori care este compus din doua valori care este compus din doua traductoare de curent urmate de un bloc diferential de comparare a valorii curentului si un alt bloc diferential de comparare a valorii curentului, si un alt bloc diferential de comparare a semnalului diferentei acestora în functie de rezultatele acestor comparari înregistrîndu-se indexe pe numarptoare electromagnetice proportionale cu intervalele de timp în care curentii sau diferente curentilor se pastreaza într-o anumita gama de valori selectionarea numaratoarelor realizîndu-se printr-un decodor realizat cu porti logice si comandat prin circuite basculante bistabile.The invention relates to a recorder of the degree of unbalance of triphase currents in terms of load and time as the current on a phase is maintained in a range of values which is composed of two values which is composed of two transducers the current being followed by a differential current comparator block and another differential current comparison current block, and another difference comparison block of their difference signal, depending on the results of these comparisons, the indexes are recorded on electromagnetic counters proportional to the intervals when currents or current differences are kept in a certain range of values, the selection of the counters is realized by a decoder made with logic gates and commanded by bistable tipping circuits.

RO109235A 1982-12-06 1982-12-06 Apparatus for measuring the non-symmetry level of three-phased currents RO84233B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO109235A RO84233B1 (en) 1982-12-06 1982-12-06 Apparatus for measuring the non-symmetry level of three-phased currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO109235A RO84233B1 (en) 1982-12-06 1982-12-06 Apparatus for measuring the non-symmetry level of three-phased currents

Publications (2)

Publication Number Publication Date
RO84233A2 RO84233A2 (en) 1984-05-23
RO84233B1 true RO84233B1 (en) 1984-07-30

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ID=20112321

Family Applications (1)

Application Number Title Priority Date Filing Date
RO109235A RO84233B1 (en) 1982-12-06 1982-12-06 Apparatus for measuring the non-symmetry level of three-phased currents

Country Status (1)

Country Link
RO (1) RO84233B1 (en)

Also Published As

Publication number Publication date
RO84233A2 (en) 1984-05-23

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