FIELD: protection of metalclad switchgear from arcing short circuits. SUBSTANCE: signal level proportional to light flux generated by short-circuit electric arc is monitored by photoelectric transducers. Information about condition of photoelectric transducers is transmitted on request of central control device over communication line. Coding transmitted information enables execution of high-sensitivity reliable centralized protection of metalclad switchgear and filtering off electromagnetic noise of all kinds. EFFECT: enhanced reliability and noise immunity; enlarged functional capabilities. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ARC-PROTECTION DEVICE FOR FACTORY-ASSEMBLED SWITCHGEAR | 1992 |
|
RU2024148C1 |
| CENTRALIZED ARC PROTECTION DEVICE FOR CUBICLE-TYPE ELECTRICAL INSTALLATIONS | 1992 |
|
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| METALCLAD SWITCHGEAR ARC PROTECTION DEVICE | 1998 |
|
RU2162271C2 |
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|
SU1628129A1 |
| DEVICE FOR PROTECTION OF FACTORY-ASSEMBLED SWITCH-GEAR AGAINST ELECTRIC ARC OF SHORT CIRCUIT | 0 |
|
SU1656630A1 |
| DEVICE FOR PROTECTING CELLS OF FACTORY-ASSEMBLED SWITCHGEAR FROM ARC SHORT CIRCUITS | 0 |
|
SU1584029A1 |
| DIFFERENTIAL ARC PROTECTIVE DEVICE FOR METALCLAD SWITCHGEAR | 1992 |
|
RU2020687C1 |
| ARCING SHORT CIRCUIT PROTECTIVE GEAR FOR METALCLAD SWITCHGEAR | 1992 |
|
RU2020688C1 |
| DEVICE FOR PROTECTION OF FACTORY-ASSEMBLE SWITCH-GEARS | 1992 |
|
RU2025859C1 |
| DEVICE FOR PROTECTING COMPLEX SWITCHGEAR AGAINST ARC-SHORTING | 0 |
|
SU1453518A1 |
