Intelligent motor control centre
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On: 31 Okt, 2018
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Serial communication network equipment is used to couple all the microprocessor based units. Figure 7.5 shows the basic arrangement of a typical system. The number of switchboards and motor control centres can be increased to cater for a large pla...
Serial communication network equipment is used to couple all the microprocessor based units. Figure 7.5 shows the basic arrangement of a typical system. The number of switchboards and motor control centres can be increased to cater for a large plant. A typical IMCS should include at least the following components:
- Each outgoing motor or plain feeder unit requires a MCU or a FCU.
- Each incoming interconnector and busbar circuit breaker also requires a FCU.
- A CCU should be provided for either, a complete switchboards, or all switchboards located in a switchroom. A dual redundant system may be chosen so as to raise the system reliability and availability.
- Interfacing equipment and software to communicate with a DCS and a SCADA system, if they exist.
- A local area network (LAN) to couple all the units within the IMCS, which should not be a shared system such as the DCS.
- Various sources of uninterruptible power will be required, if the plant is spread over a large site. These wil provide the essensial power to the IMCS processing units when other less reliable power supplies interupt of fail.
- Protection circuits and devices to render the system immune from electromagnetic interference.
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