FIELD: electrical engineering.
SUBSTANCE: invention pertains to electrical engineering and can be used in objects, containing a d.c electromagnet, for example, in electromagnetic relays, contactors etc. The d.c electromagnet with superexcitation has a coil with a resistor, a supply voltage source, a circuit opening contact and a threshold element. The threshold element has a resistor, semiconductor voltage detector, transistor switch, capacitor and a diode, connected in the circuit of the d.c electromagnet in accordance with instructions in the material of the application.
EFFECT: increased reliability of operation of the dc electromagnet with superexcitation under conditions providing for its connection to low supply voltage.
2 cl; 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE TO CONTROL ELECTROMAGNET OF CONSTANT VOLTAGE | 2016 |
|
RU2636052C1 |
| ELECTROMAGNET WITH FORCING | 0 |
|
SU1261017A1 |
| DEVICE FOR FORCING DC ELECTROMAGNET | 0 |
|
SU1756949A1 |
| DEVICE FOR EXCITATION OF A SYNCHRONOUS MACHINE | 0 |
|
SU1394322A1 |
| CIRCUIT FOR CONTROL OF HOLDING ELECTROMAGNETS OF ACTUATORS FOR EMERGENCY PROTECTION SYSTEM OF NUCLEAR REACTOR | 0 |
|
SU1823011A1 |
| DEVICE FOR BOOSTING DC ELECTROMAGNET | 0 |
|
SU964743A1 |
| DEVICE FOR FORCING ELECTROMAGNETS | 0 |
|
SU1121707A1 |
| DEVICE CONTROLLING ELECTROMAGNET | 1999 |
|
RU2187161C2 |
| 0 |
|
SU1784693A1 | |
| ELECTROMAGNET WITH BUILT-IN RECTIFIER WITH FORGING | 0 |
|
SU1582211A1 |
