Carter Bros - 900KW 12 pulse Rubber mixer IRAN
Drives and Automation provided design, manufacture and testing of a reversible mixer for the manufacture of rubber sheet.
The system comprised of two Siemens SIMOREG 6RA70 DC drives configured in 12-pulse mode. The inch reverse function was performed using field polarity reversal.
An overload facility of 220% at start was built into the system design, which included the specification, and procurement or the 12 pulse air cooled phase shift transformer and interbridge reactor.
Variable speed oil supply to the mixing chamber was achieved with a Siemens variable speed 6SE AC drive.
DeviceNet interface via remote I/O to control the system from a remote PLC was also provided.
Scope of supply: -
• Full design and specification
• 12 Pulse transformer and DC Choke
• Manufacture of drive system
• Witness test.