The hottest Emerson unidrivesp can be used for min

2022-08-03
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Emerson unidrive SP can be used for mining and excavation

the kostolac large open pit coal mine located about 90 km southeast of Belgrade adopts the heavy-duty AC drive of Emerson C spring tester/spring tension tester/spring pressure tester t

after fierce competition, the local drive expert of Emerson CT, master inzenjering d.o.o. of Subotica, its long-term system partner and motor system manufacturer ATB sever, jointly won this prestigious contract. This is a government contract based on a complex scoring system including price, technical solutions, experience and local support. Petar mikovic, the project manager of ATB sever, commented that the close working relationship between us and Emerson CT and master engineering, as well as the experience of such programs and customer support, have jointly contributed to the signing of the contract due to the plastic machinery and other aspects

atb sever provides customers with a complete turnkey solution, including electronic control panel, software, motor, all electrical and field commissioning

the government-owned e-ko kostolac mine is the second largest open-pit coal mine in Serbia and directly supplies coal for nearby coal-fired power stations. This application drives and controls a large two-piece drive belt system to remove soil and rock above the coal seams

the unit provides four 315KW heavy-duty unidrive SP independent drives, each equipped with a PROFIBUS module that can communicate directly with the central PLC and ESA HMI panel. The compact size and the modular format easy to install and maintain are the key factors for selecting these same steps as 10 experimental drivers, which can be installed in the Limited clean electrical switch room on the transmission station

these four drives can operate in Emerson CT's unique open-loop RFC mode and control two roller drums, each with a 315 kW, 1490 RPM motor at one end. The control system monitors the load and adjusts the speed of the drive to ensure an even distribution of motor power

in case of fault, the system can operate three or even two motors. In most cases, the conveyor belt runs at full speed of 50Hz/4.5m/s, but in order to reduce energy consumption, the system automatically reduces the speed when the load is light

the excavator loads the soil into a 1.6m wide load conveyor system, which transports the load to the distribution conveyor. The two belts can be moved to the required position through the track system, with a total length of up to 2 km. The load during 24-hour daily operation is fairly uniform, and the system capacity varies between 3000 and 5000 tons/hour according to the characteristics of loaded soil and rock

unidrive SP independent control rooms offer prefabricated solutions in small space enclosures and at competitive prices. So far, customers believe that the product has been strongly verified on site. The product also provides industry-leading communication, feedback options, a variety of operation modes (including energy-saving four quadrant operation) and a high degree of programmability

petar mikovic added: the project is progressing very smoothly, and we have focused on the next important scheme

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