FIELD: metalclad switchgear protection against arcing short circuits. SUBSTANCE: when photosensors are connected by employing balance (differential) circuit arrangements of each pair of cubicles, use is made of comparator with dead zone and integrating element inserted between inputs of first and second comparison circuits. EFFECT: improved design. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ARC-PROTECTION DEVICE FOR FACTORY-ASSEMBLED SWITCHGEAR | 1992 |
|
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| DEVICE FOR PROTECTION OF FACTORY-ASSEMBLE SWITCH-GEARS | 1992 |
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