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ABB SDCS-PIN-21 3ADT306200R1  

The SDCS-PIN-20x board consists of: - firing pulse circuits with pulse transformers - measurement of the armature current - snubber circuit for thyristor protection (consists of RC circuits in parallel of the thyristors and RCD network) - AC and DC high ohmic voltage measurement - rated current scaling with burden resistors, zero current detection and HW voltage type coding - interface for heat sink temperature measurement with a PTC sensor - fuses for overvoltage protection and voltage measuring - the same board will be used without any modifi- cation at a converter used for three-phase field supply Fig. 5.2/1 Layout of the SDCS-PIN-20x (20xA), 20xB board. Spare part The protection of the power part is done by using RC circuits. Snubber circuits are wired in parallel to each thyristor with fuses in between. RCD ele- ments are protected by the fuses F 101 to F 103. The AC voltage measurement is taken from behind the fuse. Fuse data: Bussmann KTK-R-6A (600V) The power interface board SDCS-PIN205 can be used as a replacement of SDCS-PIN-21, 22 and 25. The board SDCS-PIN-206 can be used as a re- placement of SDCS-PIN-23 and 24, but not vice- versa! In case of a converter with 450 A / 520 A / 700 A at 500 V or a converter of 450 A at 600 V ad- ditional actions have to be taken into account.

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  A: Yes, we are glad to offer you discount if you order more than 1 piece.

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  A: We accept return back items if the goods still remain in their original condition on the warranty time .

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