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