The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.

5SHX1445H0001 3BHL000391P0101 Thyristor module

The Galvanic isolation is an option for converters in the current range 2050...5150 A and rated voltages 1000 V. For converters with a rated voltage of 1190 V and 12-pulse serial > 2x 500 V the galvanic isolation is a standard equipment. It is used to replace the high-ohmic resistance voltage measurement and gives the advantage of a total isolation from power part to electronic part. The transformer T90 and the DC transducer A92 are located outside the converter module. The internal AC and DC voltage measurement channels are opened and connected to the T90 and A92 units.

Remark The terminals on the primary side of the transformer are in special design (lug terminals). Handling hints: First turn the screw conterclockwise to the end stop, then swing out the shrowding cover. Put in the cable lug, swing in the the shrowding cover and fasten the connection by turning the screw clockwise.

The protection of the power part is done by using RC circuits and MOV elements. Snubber circuits are wired up in parallel to each thyristor directly without fuses in between. In addition to that MOV elements are wired up in between the phases and protected by the fuses F271 to F 273. The AC voltage measurement is taken from behind the fuse. Fuse data: Bussmann KTK-R-6A (600V) or F6A/500V (8x40mm) GNN976953P0001

Power Interface SDCS-PIN 41/SDCS-PIN-5x

The Power Interface of DCS converter modules model C3 and C4 from 900 A up to 5150 A consists of two boards - the Measuring board SDCS-PIN-5x and the Pulse transformer board SCDS-PIN-41. There are different versions of the SDCS-PIN-5x: SDCS-PIN-51 for converters with all line voltages SDCS-PIN-52 for converters with line volt.
500 V The following figures show the different connections between the SDCS-PIN-41 and SDCS-PIN-5x board depending on the application 2- or 4-quadrant and the construction type. Converters, delivered from 1998 on, will be equipped with SDCS-PIN-41A, which is a full replacement for converters, which alredy in use.

Measuring board SDCS-PIN-5x This board is always used together with SDCSPIN-41 board. On this board there are the circuits located needed for current, voltage and temperature measuring and for hardware coding. The current is measured by current transformers at the AC supply, rectified by a diode bridge and scaled with burden resistors to 1.5 V as rated current. The current response is adjusted by cutting out resistors (R1 ... R21) from the board according to the coding table. The resistors R22 ... R26 are used for the current equal to zero detection. These resistors must be cut off according to a second table. Voltages (U1, V1, W1 and C1(+) and D1(-)) are measured by using high ohm resistor chains. Scaling of AC and DC voltage is done by activating

Power interface board PG 63x0 

The power interface board PG 63x0 is used for converter units type DCP50x. There are 2 different versions in use. The used types are: - PG 6320 for 90 A...150 A converters at 400/500 V - PG 6330 for 250 A...540 A converters at 400/500 V The PG 63x0 boards consists of: - firing pulse circuits and pulse transformers - measurement of the armature current via current transformers - snubber circuit for thyristors protection (consists of RC circuits and MOV elements) - AC and DC high ohmic voltage measurement - heat sink temperature measurement via PTC sensor - scaling for rated current, zero current detection and HW type coding - fuses for overvoltage protection and voltage measuring

This board contains only resistors and capacitors to increase the power of the snubber circuit and it is connected by metal standoffs. The PU 6001 board is used with the power interface board PG 6330 for DCP units at 540 A.