RO97339B1 - Very low frequency three-phase source - Google Patents

Very low frequency three-phase source

Info

Publication number
RO97339B1
RO97339B1 RO125183A RO12518386A RO97339B1 RO 97339 B1 RO97339 B1 RO 97339B1 RO 125183 A RO125183 A RO 125183A RO 12518386 A RO12518386 A RO 12518386A RO 97339 B1 RO97339 B1 RO 97339B1
Authority
RO
Romania
Prior art keywords
phase
frequency
low frequency
source
machines
Prior art date
Application number
RO125183A
Other languages
Romanian (ro)
Other versions
RO97339A2 (en
Inventor
Ovidiu Stefan Draganescu
Original Assignee
Universitatea
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 Universitatea filed Critical Universitatea
Priority to RO125183A priority Critical patent/RO97339B1/en
Publication of RO97339A2 publication Critical patent/RO97339A2/en
Publication of RO97339B1 publication Critical patent/RO97339B1/en

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Abstract

Inventia se refera la o sursa trifazata de joasa frecventa. Sursa trifazata, conform inventiei, este realizata din trei masini de curent continuu identice, cuplate mecanic între ele si antrenate cu un motor sincron, masinile de curent continuu având bornele de aceeasi polaritate conectate galvanic pentru conexiunea stea, sau bornele de polaritate diferita înseriate pentru conexiune triunghi, iar înfasurarile de excitatie conectate în stea sau triunghi sunt alimentate de la colectorul unui convertizor de frecventa care este antrenat de un motor sincron, sau de un motor de curent continuu si alimentat la inele de un sistem simetric de tensiuni de frecventa si faza constante, de la o sursa adecvata, spre exemplu de la o retea prin intermediul unui autotransportor si a unui transformator.The invention relates to a three-phase low-frequency source. The three-phase source according to the invention is made up of three identical DC machines, mechanically coupled to each other, and driven by a synchronous motor, the DC machines having the same polarity terminals connected to the star connection, or the different polarized terminals for connection triangle, and the excitation exits connected in a star or triangle are fed from the collector of a frequency converter that is driven by a synchronous motor or a DC motor and fed to the rings by a symmetric frequency and phase voltage system , from a suitable source, for example from a network through a self-transporter and a transformer.

RO125183A 1986-10-29 1986-10-29 Very low frequency three-phase source RO97339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO125183A RO97339B1 (en) 1986-10-29 1986-10-29 Very low frequency three-phase source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO125183A RO97339B1 (en) 1986-10-29 1986-10-29 Very low frequency three-phase source

Publications (2)

Publication Number Publication Date
RO97339A2 RO97339A2 (en) 1989-05-30
RO97339B1 true RO97339B1 (en) 1989-06-01

Family

ID=20119967

Family Applications (1)

Application Number Title Priority Date Filing Date
RO125183A RO97339B1 (en) 1986-10-29 1986-10-29 Very low frequency three-phase source

Country Status (1)

Country Link
RO (1) RO97339B1 (en)

Also Published As

Publication number Publication date
RO97339A2 (en) 1989-05-30

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