RO86183B1 - Relay for protecting electric motors - Google Patents

Relay for protecting electric motors

Info

Publication number
RO86183B1
RO86183B1 RO110405A RO11040583A RO86183B1 RO 86183 B1 RO86183 B1 RO 86183B1 RO 110405 A RO110405 A RO 110405A RO 11040583 A RO11040583 A RO 11040583A RO 86183 B1 RO86183 B1 RO 86183B1
Authority
RO
Romania
Prior art keywords
relay
electric motors
phase
fixed
protection
Prior art date
Application number
RO110405A
Other languages
Romanian (ro)
Other versions
RO86183A2 (en
Inventor
Dorel Cernomazu
Original Assignee
îNTREPRINDEREA DE EXPLOATARE SI îNTRETINERE A RETELELOR ELECTRICE SI DE DISTRIBUTIE A ENERGIEI ELECTRICE SI TERMICE
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 EXPLOATARE SI îNTRETINERE A RETELELOR ELECTRICE SI DE DISTRIBUTIE A ENERGIEI ELECTRICE SI TERMICE filed Critical îNTREPRINDEREA DE EXPLOATARE SI îNTRETINERE A RETELELOR ELECTRICE SI DE DISTRIBUTIE A ENERGIEI ELECTRICE SI TERMICE
Priority to RO110405A priority Critical patent/RO86183B1/en
Publication of RO86183A2 publication Critical patent/RO86183A2/en
Publication of RO86183B1 publication Critical patent/RO86183B1/en

Links

Abstract

Inventia se refera la un releu pentru protectia motoarelor electrice trifazate împotriva alimentarii cu tensiuneredusa, cu tensiuni de succesiune trifazata inversa, cat si împotriva ramînerii în doua faze. Releul conform inventiei este alcatuit dintr-un miez magnetic cu trei coloane, pe care sunt fixate cele trei bobine ale sistemului de masura si care, la partea superioara, are practicata o scobitura semicirculara, în care se gaseste echipajul mobil reprezentat printr-un semicilindru din aluminiu fixat pe un ax ce se sprijina prin cele doua extremitati în doua lagare de tip "crapadina" si unde în interiorul piesei mobile din aluminiu, se gaseste o piesa feromagnetica fixa executata din tole de transformator, avand scopul de a reduce reluctanta circuitului magnetic. Releul poate fi utilizat în schemele electrice de actionare în scopul protectiei motoarelor electrice asincrone trifazate. The invention relates to a relay for the protection of three-phase electric motors against voltage supply with three-phase inversion succession, as well as against the two-phase relay. The relay according to the invention consists of a three-column magnetic core on which the three measuring system coils are fixed and which, at the top, has a semicircular hollow, in which the mobile crew is represented by a semicylinder of aluminum fixed on a shaft that rests on the two extremities in two "crapadina" bearings and where inside the aluminum movable piece there is a fixed ferromagnetic piece made of transformer plates, aiming to reduce the reluctance of the magnetic circuit. The relay can be used in electrical drive schemes for the protection of three-phase asynchronous electric motors.

RO110405A 1983-03-22 1983-03-22 Relay for protecting electric motors RO86183B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO110405A RO86183B1 (en) 1983-03-22 1983-03-22 Relay for protecting electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO110405A RO86183B1 (en) 1983-03-22 1983-03-22 Relay for protecting electric motors

Publications (2)

Publication Number Publication Date
RO86183A2 RO86183A2 (en) 1985-02-25
RO86183B1 true RO86183B1 (en) 1985-03-01

Family

ID=20112822

Family Applications (1)

Application Number Title Priority Date Filing Date
RO110405A RO86183B1 (en) 1983-03-22 1983-03-22 Relay for protecting electric motors

Country Status (1)

Country Link
RO (1) RO86183B1 (en)

Also Published As

Publication number Publication date
RO86183A2 (en) 1985-02-25

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