Within November-December 2011 the specialists of our enterprise fulfilled the design and commissioning activities for relay protection and automation data processing systems at OJSC “Pervouralsk novotrubni plant”, 35 kV closed switchgears, “Trubnaya” substation. The automation objects are 35 kV closed switchgear cells with installed control and measuring instruments: SINEAX A210 counters and SIPROTEC 7SJ62 multifunction protective relays.

          For system implementation the controller Simatic S7 CPU 315-2DP of “Siemens” manufacture, which receives and processes data from the instruments via Profibus DP net and is installed in one of closed switchgear cells, was used.

•  centralized data acquisition from relay protection and automation equipment and control of position of high-voltage switches of 34 kV closed switchgear cells;
•  control and processing of grounding signals in incoming feeders (additional protection in incoming feeders has been provided);
•  automatic running of basic parameter archive for relay protection and automation equipment;
•  simplified maintenance of electric equipment, continuous diagnostics and equipment status control with output of easy-to-read alphanumeric current status messages;
•  remote on/off switching control of 35 kV closed switchgear cells.

In December 2011 the specialists of our enterprise finished the activities on engineering of monitoring and control system for electric drive of car dumpers No.1 and No.2 in Vostochny port – the town of Nakhodka. Car dumpers are designed for discharging the cars with cargos laden in bulk. Such modernization has contributed to increase in efficiency of coal discharging and minimization of dynamic stresses on metal structure of car dumper. The project provides for replacement of operator station, replacement of controller Schneider Electric by more powerful one - Quantum 140CPU31110, as well as installation of additional sensors for secure rotor positioning and automatic positioning of open car into car dumper rotor.

          In December 2011 the specialists of our enterprise completed the set of design, erection and commissioning activities on modernization of server backup system for microprocessor centralization at Vostochny port – the town of Nakhodka, Primorski krai. Replacement of existent server equipment by more powerful and up-to-date facilities and modification of system architecture contributed to enhancement of reliability indexes of microprocessor centralization system.

          In December 2011, at Vostochny port – the town of Nakhodka, Primorski krai, the specialists of our enterprise completed the activities on design of electric drive system for hydro-station of reclaimer no.1 bucket wheel based on variable-frequency drive of “ABB” manufacture that was supposed to replace the existent direct start system. Such upgrading has contributed to increase in efficiency of main pumps of bucket wheel hydro-station and enhancement of dynamic performance of the machine, while excluding its overloads.

•  replacement of old drill pumps HBT-600 by drill pumps HBT-1000 kL of hydraulic unit power 950-1000 kW with adjustable-frequency electric drive;
•  replacement of electric equipment for pump block and circulation system machinery control by modern PLC-controlled hardware platform.    

•  automatic start (stop) of supercharging pumps by start (stop) of drill pumps;
•  automatic start (stop) of auxiliary systems of drill pump motors (lubrication, ventilation, heating) by start (stop) of drill pumps;
•  control of treatment unit machinery and tank block machinery.

• video frame of the condition of electric circuit assembly;
• video frame of flow chart of drill pump block along with display of the status of supercharging pumps, drill pumps, drill pump auxiliary machinery, readings and states of technological sensors;
• video frame of the state of automated control system;
• list of operational availability of machines;
•  archive of warnings and failures;
•  archive of operator actions.

          Within summer 2011 the specialists of “Automated systems and complexes” enterprise performed the works on commissioning of a forging plant of a 3000 ton-force press in shop 21 at OJSC “VSMPO-AVISMA Corporation”, the town of Verkhnyaya Salda. The forging plant includes a forging press itself and two manipulators of “Glama” manufacture (Germany).

•  The rate of penetration during press operation: 60-120 mm\sec  
•  Idling speeds of the press (lifting and lowering): 200-250mm\sec
•  Quantity of press strokes in “Forging” mode: 19-24 strokes
•  Quantity of strokes in “Smoothing” mode: 40-50 strokes
•  Sizing accuracy in all modes: +/- 1mm
•  Complete integration of manipulators’ system into process control system of the forging plant

          The specialists of “ASC” enterprise have finished the works on reconstruction of mill drives and replacement of control system of a sinking-sizing mill in tube-rolling shop No.1 at “Volzhski tube-rolling plant” (OJSC “VTZ”, the town of Volzhski).

• control of microprocessor drives of mill stands 1…12 via Profibus;
• generation of velocity signals for microprocessor drives of mill stands 1…12 according to the library of gaging speed indexes;  
• correction of velocity signals according to mill operator commands;
• the functions of programmable logic control of operating conditions (switch on/off, start/stop);
• process visualization at mill operator workstation;
• continuous diagnostics and visualization of current technical condition of electric equipment.

• reduction of peak power usage from overhead system by 5 times (120A instead of 600A), which ensures a significant energy loss reduction by energy transmission from substations to the car, and will ultimately enable to significantly ( by 2-3 times) reduce the number of substations;
• 100% usage of recuperative energy (electric energy, produced by motors under generator conditions during braking), which is stored in full in on-board accumulator and then used for acceleration;
• capability of autonomous run with dynamic performance meeting GOST requirements.

This innovative development opens up new opportunities in the field of development of urban electric transport and public transportations.

• speed ăegulator with two internal controllers: armature current controller and electric generator excitation current controller;
• emf regulator with internal motor excitation current controller.

• speed controller with two internal controllers: armature current controller and electric generator excitation current controller;
• motor excitation current controller with two reference settings for the first and the second speed.

• control of rolling speed ranges on the mill;
• control of coilers in reversing mode;
• maintenance of steady strip tension by rolling;
• automatic mill brake control – preliminary calculation of a number of coils on a coiler and mill brake control as a function of residual coils on an uncoiler.