Most manufacturers recommend com­plete inspections, external and internal, at intervals of from 6 to 12 months. Ex­perience has shown that a considerable expense is involved, some of which may be unnecessary, in adhering to the manufacturer’s recommend…

Automatizacija proizvodnih procesa uslovila je potrebu za stalnim usavršavanjem regulisanih elektromotornih pogona od kojih se zahtevaju pogodne regulacione karakteristike, smanjenje utroška električne energije, povećana pouzdanost, smanjenje tekućeg o…

Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun, the irregularities of the earth’s surface,…

U slučajevima kada navedena rešenja nisu dovoljna ili nemoguće ih je izvesti primenjuje se rešenje ugradnjom filtera. Postoje tri vrste filtera: aktivni, pasivni i hibridni…

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Medium voltage circuit breakers which operate in the range of 600 to 15,000 volts should be inspected and maintained annually or after every 2,000 operations, whichever comes first. The above maintenance schedule is recommended by the applicable standa…

Prisustvo velikog broja nelinearnih potrošača u distributivnim mrežama dovodi do niza negativnih efekata koji se odražavaju kako na samu mrežu tako i na ostale priključene potrošače….

Take a look at this article http://bit.ly/caoLvV about Siemens MV VCB. I know that Schneider Electric has a SF6 circuit breaker especially build for breaking huge arc of induction furnaces, but most probably and ABB has the similar CB.

Soon I will release article „Maintenance of Medium Voltage Circuit Breakers“, so I hope you will find informations you need.

Best regards

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The recent international standard IEC 61850 proposes a unified solution of the communication aspect of substation automation. However, the standard itself is not easily understood by users other than domain experts….

The deterioration of low voltage circuit breaker is normal and this process begins as soon as the circuit breaker is installed. If deterioration is not checked, it can cause failures and malfunctions….

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The deterioration of low voltage circuit breaker is normal and this process begins as soon as the circuit breaker is installed. If deterioration is not checked, it can cause failures and malfunctions. The purpose of an electrical preventive maintenance…

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The maintenance of circuit breakers deserves special consideration because of their importance for routine switching and for protection of other equipment….