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 machinesInfo
- 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
Links
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- Measurement Of Current Or Voltage (AREA)
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.
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)
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 |
-
2019
- 2019-04-01 PL PL429485A patent/PL429485A1/en unknown
Patent Citations (2)
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)
Title |
---|
PETRYNA JANUSZ, WYKORZYSTANIE STRUMIENIA UNIPOLARNEGO W DIAGNOSTYCE MASZYN PRĄDU PRZEMIENNEGO ZESZYTY PROBLEMOWE, December 2013 (2013-12-01) * |
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