Plant Control
Control of a CHP package is largely automated and requires little regular input from site staff. Provided the systems connected to the unit continue to function correctly, the unit should be capable of continuous operation using its own control system.
The unit’s control panel will usually incorporate shutdown and start-up facilities that can be initiated manually, although the sequence of events in both instances will normally be pre-defined and carried out automatically. The panel will also contain some displays giving information on operating parameters such as water temperature, exhaust gas temperature, electrical voltage and frequency. The panel may also show meter readings relating to the quantities of fuel, heat and electricity used or produced by the package, as well as an indication of operating hours.
Under normal circumstances, there is no requirement for active control by site staff, and the unit will continue to operate without constant attention. In the event of conditions changing beyond defined limits, the control system will usually sound an alarm to attract attention. If the event is potentially harmful to the equipment, the unit will shut down automatically.
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