FIELD: electricity.
SUBSTANCE: protection circuit of the power supply unit of a dc voltage apparatus is installed at the output of the power supply unit, and between the positive terminal (3) of the power supply unit and the positive terminal (1) of said apparatus there is a switching element (S1) and an inductor (L1), which is connected between the switching element (S1) and the positive output terminal (1), wherein the inductor (L1) on its side connected to the positive output terminal (1) is also connected to the an output capacitor (C2), and the side of the inductor (L1) connected to the switching element (S1) is connected to a diode (D1), which is connected in parallel to the output capacitor (C2) n the cathode side, and there is also a device for controlling the switching element (S1), which includes the switching element (S1) depending on current measured in the protection circuit.
EFFECT: designing an apparatus which, as a result of connecting units when the apparatus is operating, the absence of current harmonics is determined, and therefore undervoltage on the conductor line.
16 cl
| Title | Year | Author | Number |
|---|---|---|---|
| SCHEMATIC DEVICE FOR CONTROL AND REGISTRATION OF STATUS OF DEVICES AND PROTECTION UNITS FROM OVERLOADS | 2013 |
|
RU2627232C2 |
| SUPPRESSION DEVICE FOR CONVERTER BRIDGE WITH ENERGY RETURN | 2005 |
|
RU2372707C2 |
| ELECTRONIC FUSE WITH SELF-RECOVERY | 2010 |
|
RU2432656C1 |
| DEVICE REPRESENTING ELECTRIC RADIO SIGNAL TRANSMITTER AND/OR RECEIVER | 2009 |
|
RU2488923C2 |
| DAMPER FOR RECOVERY BRIDGE CIRCUIT OF VALVE CONVERSION | 2005 |
|
RU2365026C2 |
| RELAY CURRENT REGULATOR | 1992 |
|
RU2111526C1 |
| APPARATUS FOR INSPECTING OPERABILITY OF N CUTOUTS | 0 |
|
SU1410135A1 |
| DC CIRCUIT CONDITION MONITORING DEVICE | 2012 |
|
RU2554125C2 |
| PULSE DC VOLTAGE STABILIZER | 0 |
|
SU862130A2 |
| DEVICE FOR SIGNALLING ABOUT CUT-OUT FAILURE IN DC NETWORKS | 0 |
|
SU743100A1 |
