Design et Constructio Interruptoris Vaccum WVT-12

I. Investigatio Mercatorum et Scientiarum Technicarum

A anno 2003, in projecto clavi technologiae interruptoris vacui WVT-12 ad Anhui Longbo Company localizandi operam navavi. Tunc temporis, in classe tensionis 12kV, interruptores vacui plus quam 98% ex toto numero interruptorum occupaverant. Cum progressu constructionis rete electrici et incremento demandae electricitatis industrialis et domesticae, mercatus domesticus et internationales demonstraverunt tendentiam continuam ad augmentum demandae pro interruptoribus vacuis 12kV advanced.

Technologia seriei WVT ab Polonia feliciter introducta est anno 1997. Sua technologia generalis est ad level mundi advanced, et dominatur mercatos in Europa Orientali, Europa Centrali, Communione Statuum Independentium (CIS) et aliis regionibus. Per investigationem technicam profundam, perspicuimus quod interruptores vacui versus miniaturisationem, operationem minimam (vel sine maintenance), et fiduciam altam tendunt. Inter ea, technologia pole cast emergit, qua arc extinguish chamber et circuitus principalis cum resina epoxy in unum funduntur, perficientes excellentem performance operationis sine maintenance per totum vitam producti, et iam facta est tendentia developmentis mainstream in industria.

In terminis conformitatis standardum, interruptores vacui domestici praecipue sequuntur standardos sicut JP3855-96 General Technical Conditions for 3.6～40.5kV AC High-Voltage Vacuum Circuit Breakers et DL403-91 Technical Conditions for Ordering 10～35kV Indoor High-Voltage Circuit Breakers. Internationaliter, licet non sit standard specificus perfecte correspondentis JB3855 China, standard IEC 56 AC High-Voltage Circuit Breakers saepe applicatur. Notandum est quod standardi China in terminis insulantis level, withstand voltage level of vacuum arc extinguish chamber breaks post electrical life tests, contact closing bounce time, et test current for temperature rise tests sunt omnes altiores vel severiores quam standardi IEC.

II. Design Scheme Technicus
(A) Determinatio Conceptus Scheme Technici

Dissectavimus et analysavimus technologias typicas interruptorum vacuorum in classe tensionis 12kV, et comparavimus tria producta: ZN28, VEP, et VD4:

• ZN28: Habet amplam coverage mercatum et pretium parvum, pertinet ad typum economicum, aptum pro occasionibus generalibus;

• VD4: Technologia ABB, in positione world-leading, apta pro locis high-parameter et high-reliability;

• VEP: Digest German technology et conformatur simul standardis nationalibus China et standardis industrialibus Germaniae.

Conceptus scheme nostri technici est: performance electrica et dimensiones externae attingunt level VD4, performance mechanismi operationis melior est quam VEP et VD4, cum structura compactior, performance fidelior, et simul habet pretia competitiva in mercato.

(B) Design Scheme Specificus

• Design Generalis: Dimensiones externae intercambiabiles sunt cum VD4, VEP, et ZN□-12 types, et parameter electrice basic et indicatores principales performance consistent cum illis VD4 et VEP.

• Circuitus Conductor Principalis: Adoptat poles encapsulated. Per APG process forming technology, componentes principales circuitus principalis sicut vacuum arc extinguish chambers imbeduntur in resina epoxy et funduntur in corpus integrum, simplificantes assembly, minuentes resistance circuitus conductoris principalis, meliantes performance insulantis, et efficiendo miniaturization et operationem sine maintenance.

• Vacuum Arc Extinguish Chamber: Equipatur cum vacuum arc extinguish chamber medio-sealed ceramic, contactis copper-chromium, et structura magnetic field longitudinal cup-shaped, characteribus high withstand voltage, low electrical wear rate, long electrical life, etc.

• Mechanismus Operationis: Dispositus ante et retro cum vacuum arc extinguish chamber, est planar-spring energy storage mechanism cum functionibus manual and electric energy storage. Adoptat design modulare, minuit nexus medii in mechanism transmissionis, et utitur mechanism retentionis closing half-axis pin secondary. Mechanism energy storage utitur turbine and worm deceleration design, etc. Coil trip est structura direct-acting fully enclosed, et over-travel adjustment connectitur ad mechanism per pull rod insulans, faciens over-travel adjustment switch sine removal main circuit.

• Design Contactuum: Adoptat contactus magnetic field longitudinal cup-shaped. Durante arcing, current generat magnetic field longitudinalem, faciens arc diffundi et distribui aequabiliter. Quando current transibit zero, insulans strength recovers cito ad effectum breaking.

III. Analysis Beneficio Economico et Sociali

Fine Februarii 2006, secundum design scheme, fabricavimus interruptorem vacuum WVT indoor high-voltage. Post inspectionem qualitatis, missus est ad centrum testing nationale pro type tests die 2 Martii. Die 13 Aprilis, report inspectionis obtentus est, et resultata satisfecerunt requirementibus, complentes standardos M2 et C2 circuit breakers.

Hoc productum technologia advanced et ius intellectuale proprium independentem habet, vita longa et operationem sine maintenance, minuens perdas economicas ex maintenance electrica. Performance insulantis bona, potest uti in environmentis duris, potest substituere producta importata, et pretium minus. Demand annualis domestic market est circa 350,000 units, ostendens prospectum mercati latum et beneficia economic et socialia bona.