ABB Softstartéry - opravy, náhradní díly (EN)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

Strana 29 z 79







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Place the semiconductor the right direction. Check the semiconductor's symbol and type specification. Connect the gate cables. 13. • Use well moistened lint-free paper. Preparation heat sink and semiconductor. Then wipe the surface in order get very thin layer oil. 11. • Drip couple drops silicone oil on the cleaned contact surfaces, avoid getting oil the guide hole. • Clean all polished contact surfaces carefully with Ethanol. • void contact with the surfaces after lubrication. Load side Line side Load side Thyristor 1 Line side Thyristor Black Blue Brown Red -. 12. Rem ove the faulty thyristors. • Lightly polish the contact surface f semiconductor (the nickel layer must not be polished through) with abrasive cloth P600 which fix flat surface. Smooth the oil lightly over the whole surface using lint-free paper. The contact surfaces must dry before lubrication. Mount the guide pins the bottom heatsink. • void contact with surface. • Lubricate directly after polishing/cleaning, within minutes.10