25
−
Temperature sensor (X22).
−
Current transformers (X3, X4, X5).
8. Remove the SDCS-PIN-H board.
9. Remove the gate leads from the faulty thyristor module and mark the connectors clearly.
10. Remove the busbars and internal fuses (if existing) necessary to get full access to the faulty thyristor
module.
11. If a current transformer must be removed, mark its position, direction and the connections clearly.
Note:
Remove only as many parts as needed around the faulty thyristor module.
12. Remove the faulty thyristor module and mark it clearly as defective.
Exchange thyristors sizes T1 … T4
3ADW000449R0101 DCT880 Service Manual e a
Summary of Contents for DCT880
Page 1: ...DCT880 Service Manual DCT880 Thyristor power controller 20 A 4160 A ...
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Page 85: ...85 T2 160 A 245 A Appendix A Spare Parts List 3ADW000449R0101 DCT880 Service Manual e a ...
Page 86: ...86 T3 325 A 420 A Appendix A Spare Parts List 3ADW000449R0101 DCT880 Service Manual e a ...
Page 87: ...87 T4 550 A 740 A Appendix A Spare Parts List 3ADW000449R0101 DCT880 Service Manual e a ...
Page 88: ...88 T5 890 A 960 A Appendix A Spare Parts List 3ADW000449R0101 DCT880 Service Manual e a ...
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