FIELD: electrical engineering. SUBSTANCE: three-phase inverter and current sensor are introduced additionally into device. Current sensor is connected to input of converter unit and is connected to supply circuit of three-phase inverter through which three-phase load is powered. Output of recording unit is connected to three-phase inverter control input. Use of above-indicated elements and method of their connection enhance checking ability of device owing to checking the value of current in inverter supply circuit and, consequently, in three-phase load powered from inverter. Device reveals failures, short circuits, emergency current rise and drop in three-phase load circuit. EFFECT: enlarged operating capabilities and reliability. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PHASE-FAILURE, SHORT-CIRCUIT, AND THREE-PHASE LOAD CURRENT DETECTOR | 1990 |
|
SU1792214A1 |
| DEVICE FOR FREQUENCY CHECK | 1991 |
|
RU2007732C1 |
| ELECTROMAGNETIC FLOWMETER | 0 |
|
SU1830135A3 |
| DEVICE FOR BALANCING OPEN-PHASE MODES IN 10KV LINE FOR REMOTE CONSUMERS | 2012 |
|
RU2516461C2 |
| SYSTEM FOR INDUCTION MOTOR CONTROL | 2007 |
|
RU2342638C1 |
| CONVERTER OF DC VOLTAGE TO THREE-PHASE AC VOLTAGE | 2020 |
|
RU2747222C1 |
| DEVICE FOR FREQUENCY CHECK | 1991 |
|
RU2007731C1 |
| DEVICE FOR GENERATION OF PULSE BURSTS | 1993 |
|
RU2082278C1 |
| METHOD FOR IDENTIFYING CAUSE OF CIRCUIT BREAKER OFF-OPERATION | 1996 |
|
RU2095905C1 |
| DEVICE FOR UNINTERRUPTED AUTOMATIC LOAD TRANSFER | 2012 |
|
RU2503114C1 |
