PL429485A1 - Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines - Google Patents

Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines

Info

Publication number
PL429485A1
PL429485A1 PL429485A PL42948519A PL429485A1 PL 429485 A1 PL429485 A1 PL 429485A1 PL 429485 A PL429485 A PL 429485A PL 42948519 A PL42948519 A PL 42948519A PL 429485 A1 PL429485 A1 PL 429485A1
Authority
PL
Poland
Prior art keywords
circuit
converter
power supply
programmable
detection
Prior art date
Application number
PL429485A
Other languages
Polish (pl)
Inventor
Maciej Sułowicz
Janusz Petryna
Krzysztof Ludwinek
Original Assignee
Politechnika Świętokrzyska
Politechnika Krakowska im. Tadeusza Kościuszki
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 Politechnika Świętokrzyska, Politechnika Krakowska im. Tadeusza Kościuszki filed Critical Politechnika Świętokrzyska
Priority to PL429485A priority Critical patent/PL429485A1/en
Publication of PL429485A1 publication Critical patent/PL429485A1/en

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Abstract

Zestaw charakteryzuje się tym, że cewka (2) połączona jest z układem kondycjonowania sygnału (3) w postaci wtórnika napięcia, który połączony jest z układem próbkująco-pamiętającym (4) dołączonym do przetwornika A/D (7), który połączony jest z programowalnym układem mikroprocesorowym (8), którego sygnał doprowadzony jest do urządzenia wyłączającego (9), służącego do wyłączania obwodu zasilania sieci (11) od maszyny elektrycznej (1). Układ kondycjonowania sygnału (3) połączony jest z układem całkowania (5), który połączony jest z przetwornikiem RMS (6) dołączonym do przetwornika A/D (7), przy czym układ kondycjonowania sygnału (3) połączony jest z przetwornikiem RMS (6), który połączony jest z przetwornikiem A/D (7). Układ kondycjonowania sygnału (3), układ próbkująco-pamiętający (4), układ całkujący (5), przetwornik RMS (6), przetwornik A/D (7), programowalny układ mikroprocesorowy (8) zasilane są z zasilacza (10) dołączonego do obwodu zasilania sieci (11). Korzystnie, urządzenie wyłączające (9) ma postać trójfazowego stycznika, a układem programowalnym (8) jest sterownik PLC lub układ programowalny z mikrokontrolerem.The set is characterized by the fact that the coil (2) is connected to the signal conditioning circuit (3) in the form of a voltage follower, which is connected to the sampling-memory circuit (4) connected to the A / D converter (7), which is connected to the programmable with a microprocessor system (8), the signal of which is fed to a switching device (9) for disconnecting the mains supply circuit (11) from the electric machine (1). The signal conditioning circuit (3) is connected to the integration circuit (5) which is connected to the RMS converter (6) connected to the A / D converter (7), and the signal conditioning circuit (3) is connected to the RMS converter (6) which is connected to the A / D converter (7). The signal conditioning circuit (3), the sampling-memory circuit (4), the integrator circuit (5), the RMS converter (6), the A / D converter (7), and the programmable microprocessor circuit (8) are powered from the power supply (10) attached to the the mains supply circuit (11). Preferably, the trip device (9) is a three-phase contactor and the programmable circuit (8) is a PLC or a programmable circuit with a microcontroller.

PL429485A 2019-04-01 2019-04-01 Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines PL429485A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL429485A PL429485A1 (en) 2019-04-01 2019-04-01 Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL429485A PL429485A1 (en) 2019-04-01 2019-04-01 Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines

Publications (1)

Publication Number Publication Date
PL429485A1 true PL429485A1 (en) 2019-09-23

Family

ID=67979763

Family Applications (1)

Application Number Title Priority Date Filing Date
PL429485A PL429485A1 (en) 2019-04-01 2019-04-01 Set of devices for detection of short circuits and disconnecting power supply of the alternating current electrical machines

Country Status (1)

Country Link
PL (1) PL429485A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761703A (en) * 1987-08-31 1988-08-02 Electric Power Research Institute, Inc. Rotor fault detector for induction motors
US5252915A (en) * 1992-01-23 1993-10-12 Ontario Hydro Method and apparatus for detecting stator faults in rotary dynamoelectric machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761703A (en) * 1987-08-31 1988-08-02 Electric Power Research Institute, Inc. Rotor fault detector for induction motors
US5252915A (en) * 1992-01-23 1993-10-12 Ontario Hydro Method and apparatus for detecting stator faults in rotary dynamoelectric machines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PETRYNA JANUSZ, WYKORZYSTANIE STRUMIENIA UNIPOLARNEGO W DIAGNOSTYCE MASZYN PRĄDU PRZEMIENNEGO ZESZYTY PROBLEMOWE, December 2013 (2013-12-01) *

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