
Eskesyal nga Konsiderasyon para sa Shaft ug Latch Bearings
Gikinahanglan og espesyal nga atensyon ang material specifications ug design sa shaft ug latch bearings aron masigurado ang smooth operation, bisan human sa prolonged period sa inactivity. Ang moving contacts gikinahanglan mo-separate within approximately 25 milliseconds kung ang protection system mag-issue og opening command.
Key Design Features:
Trip and Close Latches: Ang mga komponente niini gidesinyo nga relatyibong lightly loaded aron mapugos ang burden sa trip ug closing coils. Gipasabot niini ang high mechanical advantage, resulta niana ang high velocity ratio ug consequently high-impact speeds sa latch faces.
Operating Mechanism Specifications
Ang operating mechanisms gikinahanglan mog meet sa daghang critical specifications aron masigurado ang reliable performance:
Trip Free:Ang operating mechanism gikinahanglan mog capable og tripping sa any point during the closing stroke. Ang trip signal gisunod gyud sa closing signal.
Independent Operation:Sufficient power gikinahanglan mopasabot independent sa manual operation aron fully open o close ang mechanism sa tanang kondisyon.
Electrical Trip:Para sa local ug remote operations, kasagaran sa protection tripping.
Manual Trip:Para sa local operation lang.
Electrical Close:Typically used for remote operation only.
Manual Close:Para sa local operation lang.
Operating Mechanism Components
Ania ang description sa spring-type operating mechanism, illustrated sa accompanying figure:
Spring Type Operating Mechanism: Kini nga mechanism gigamit og springs aron mopreserve sa energy, providing ang necessary force aron mopasabot ang breaker. Ang stored energy masiguro nga ang breaker makapag-operate sa both opening ug closing operations reliably, bisan sa varying load conditions.
Summary
Arnon masiguro ang optimal performance ug reliability, ang sumusunod nga puntos gikinahanglan:
Material Specifications and Design: Careful selection of materials ug precise design of shaft ug latch bearings gikinahanglan aron mapreserbar ang functionality, bisan human sa long periods of inactivity.
High Mechanical Advantage: Ensures minimal coil burdens while achieving rapid response times.
Operating Mechanism Requirements: Compliance with trip-free, independent operation, electrical trip, manual trip, electrical close, ug manual close specifications.
By adhering to these guidelines, ang operating mechanism makapasa dependable operation, ensuring safety ug efficiency in various operational scenarios.