Installation electric power

Contact with the flywheel tales place first with one disc then the other, one disc driving the punch down, the other raising it. The friction press is a high-output machine (up to 30 cycles/min) and, given the installed electrical power, features an excellent energy-productivity ratio. 

Installed electrical power by the land was from 21,332 kW in 2013, distributed as shown in the chart below (Figs. 10 and 11). 

Power Supplies and Controls. Induction heating furnace loads rarely can be connected directiy to the user s electric power distribution system. If the load is to operate at the supply frequency, a transformer is used to provide the proper load voltage as weU as isolation from the supply system. Adjustment of the load voltage can be achieved by means of a tapped transformer or by use of a solid-state switch. The low power factor of an induction load can be corrected by installing a capacitor bank in the primary or secondary circuit. 

Induction heating equipment installations can require significant investment in electric power components as well as the work handling equipment made necessary by the process. These costs can be offset by savings in plant space, reduction in metal loss, precise control of product temperature, and reduced in-process inventory. A typical continuous induction heating line consumes about 360 kW h/t heating carbon steel bars to 1230°C. 

Industrial use of cogeneration leads to small, dispersed electric-power-generation installations—an alternative to complete reliance on large central power plants. Because of the relatively snort distances over which thermal energy can be transported, process-heat generation is characteristically an on-site process, with or without cogeneration. 

Eollowing initial installation in 1971, the Phase 1 expansion turbines have proven extremely reliable. The redesign effort of Phase 2 in 1992 incorporated improved aerodynamics and changed inlet guide vane profiles in the expansion turbines. This redesign yielded an additional. 40 to. 50 Bcf of gas per year without any increase in recompression horsepower. This translates to an increase in propane and butane production of an additional 3,600 to 4,500 bbl of liquid without an increase in electrical power consumption. 

San Diego Gas Electric s expander is installed in parallel to a major city gate station. This type of system could be installed on a pressure reducing station supplying natural gas to an electric power plant. Large regulator stations serving industrial customers are another possible application. 

Temperature Measurement shift. Measurement not representative of process. Indicator reading varies second to second. Ambient temperature change. Fast changing process temperature. Electrical power wires near thermocouple extension wires. Increase immersion length. Insulate surface. Use quick response or low thermal time constant device. Use shielded, twisted pair thermocouple extension wire, and/or install in conduit. 

The design eost will be a function of the incinerator cost plus installation which is normally in the range of 4 to7%. This cost should be doubled to include engineering services during project construction. It should be noted that with the electric furnace, the power needed to start up results in a large connected load. In areas of the country where there are high demand charges for electric power, this system can be economically impractical. 

In the ease of an offshore facility, electrical power is generally ge ated on site by engine- or turbine-driven generator sets using natural or diesel as fuel. Most installations are designed to handle the total e tri. 1 even if one generator is out of service. To minimize the siz st quipment, some facilities have a system to automatically f... 

Diesels, gas turbines and steam turbines are the more commonly used prime movers for the generation of electrical power. Additionally, the steam turbine can be employed in combination with either the diesel or gas turbine for combined cycle operation. The following describes the basic operation of each of these prime movers in relation to its associated power-generating scheme and reviews the more significant factors affecting performance and efficiency. Further information on the actual plant and installation is given later in Section 15.6. 

The simple back-pressure turbine provides maximum economy with the simplest installation. An ideal backpressure turbogenerator set relies on the process steam requirements to match the power demand. However, this ideal is seldom realized in practice. In most installations the power and heat demands will fluctuate widely, with a fall in electrical demand when steam flow, for instance, rises. 

---