Load side Line side
Load side
Thyristor
1
Line side
Thyristor
Black Blue
Brown Red
-. Mount the guide pins the bottom heatsink. Connect the gate cables. Then wipe the surface
in order get very thin layer oil.
• void contact with surface.
• Drip couple drops silicone oil on
the cleaned contact surfaces, avoid
getting oil the guide hole.
• Use well moistened lint-free paper.
• Clean all polished contact surfaces
carefully with Ethanol.
13.10.
• void contact with the surfaces after
lubrication.
• Lightly polish the contact surface f
semiconductor (the nickel layer must not
be polished through) with abrasive cloth
P600 which fix flat surface. Preparation heat sink and semiconductor.
12.
The contact surfaces must dry before
lubrication.
11. Rem ove the faulty thyristors.
Place the semiconductor the right direction. Smooth the
oil lightly over the whole surface using
lint-free paper. Check the semiconductor's symbol and type
specification.
• Lubricate directly after
polishing/cleaning, within minutes
