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Q. Burner Management - Discrete Controls for steam generators?
The burner management system shall control the generator operation during pre-purge, light off, normal operation, post purge and shutdown, for normal and emergency conditions.
The system shall automatically control all sequences and shall monitor all safety limit devices to provide a safe shutdown.
The burner management logic will be programmed into a stand-alone BMS or PLC by the Vendor. It will be rack mounted inside the local panel.
Note that 480 V or 600 V motor circuit protectors (depending on the project), contactors, control transformers, thermistor relays, and time delay may be provided by WorleyParsons in the Central Plant Motor Control Centre for the combustion air fan.
Backup Purge Backup purge gas can also be used to protect the under side of the weld and its adjacent base metal surfaces from oxidation on the time of welding . Uniformity
Third Gear Position: When gear M3 on the main shaft is in mesh with gear C3 on the counter shaft then this is known as third gear position. The fixed gear M3 rotates with mai
Diamond Crossing: Two tracks crossing one another is known as a diamond crossing. The component of a Diamond Crossing are indicated in Figure. Figure: Diamond Cross
1. Produce the SW parts for the lugs, connector and tubes. Produce an assembly to FIT at the designated points. 2. Create your own, individual, blank, customised drawing te
RESISTANCE WELDING The types are as follows: Resistance Spot Welding Resistance Seam Welding Projection Welding Flash Butt Welding Flash Butt Welding Stit
what are the functions of a lubricating system
Nitrides, Silicides and Sulfides Nitrides contain very high melting point but initiate to oxidize at low temperature. They have poor resistance also to chemicals. Boron nitrid
Q. Design Transfer Facilities in plant? Transfer facilities (e.g. pumps, piping, and conveyers) must be arranged so that no leaks can escape the confines of the bund / dike, an
W rite down the different assumptions in simple theory of bending. The assumptions which are made in theory of simple bending are stated below:
Determine the Excavation of soil Excavation of soil in open well foundations is done by dredging with grab buckets or similar equipment. The volume of excavated soil always e
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