RO96284B1 - Minimal and maximal frequency electronic relay - Google Patents

Minimal and maximal frequency electronic relay

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Publication number
RO96284B1
RO96284B1 RO124802A RO12480286A RO96284B1 RO 96284 B1 RO96284 B1 RO 96284B1 RO 124802 A RO124802 A RO 124802A RO 12480286 A RO12480286 A RO 12480286A RO 96284 B1 RO96284 B1 RO 96284B1
Authority
RO
Romania
Prior art keywords
followed
relay
minimal
frequency
frequency electronic
Prior art date
Application number
RO124802A
Other languages
Romanian (ro)
Other versions
RO96284A2 (en
Inventor
Cornel Liviu Gramescu
Viorel Solca
Bebe Caraiman
Mihaela Gramescu
Original Assignee
Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Motoare
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 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Motoare filed Critical Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Motoare
Priority to RO124802A priority Critical patent/RO96284B1/en
Publication of RO96284A2 publication Critical patent/RO96284A2/en
Publication of RO96284B1 publication Critical patent/RO96284B1/en

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Abstract

Inventia se refera la un releu electronic de frecventa minima si maxima pentru controlul mentinerii frecventei retelelor electrice, care contine un formator de impulsuri realizat la trecerea prin zero cu un comparator al unei tensiuni, culeasa si redresata cu un nivel de referinta, formatorul fiind urmat de un circuit basculant, monostabil, urmat în varianta pentru frecventa maxima de un al doilea monostabil si de un element de executie cu releu, în varianta pentru frecventa minima - de un circuit comparator cu prag fix, urmat de un element de executie cu releu.The invention relates to an electronic minimum and maximum frequency relay for controlling the maintenance of the frequency of electrical networks, which comprises a pulse trap formed at zero crossing with a voltage comparator, picked up and rectified with a reference level, the trainer being followed by a monostable derailleur followed by the maximum frequency of a second monostable and a relay execution element in the minimum frequency version of a fixed threshold comparator circuit followed by a relay output element.

RO124802A 1986-09-22 1986-09-22 Minimal and maximal frequency electronic relay RO96284B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO124802A RO96284B1 (en) 1986-09-22 1986-09-22 Minimal and maximal frequency electronic relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO124802A RO96284B1 (en) 1986-09-22 1986-09-22 Minimal and maximal frequency electronic relay

Publications (2)

Publication Number Publication Date
RO96284A2 RO96284A2 (en) 1989-01-30
RO96284B1 true RO96284B1 (en) 1989-02-01

Family

ID=20119846

Family Applications (1)

Application Number Title Priority Date Filing Date
RO124802A RO96284B1 (en) 1986-09-22 1986-09-22 Minimal and maximal frequency electronic relay

Country Status (1)

Country Link
RO (1) RO96284B1 (en)

Also Published As

Publication number Publication date
RO96284A2 (en) 1989-01-30

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