The Relay Shown below is a relay with two sets of switching contacts. The abbreviation N.C. stands for normally closed and means that the contacts are in a closed position as long as the coil is de-energized. Similarly, N.O. means normally open and the contact remains open as long as there is no current flowing through the coil. Finish the drawing by connecting all parts in such a manner that lamp A is burning all the time but turns off when the push button is depressed. Lamp B will turn on at the same time lamp A is extinguished. neti tion N.C. Obje N.O. A Indu B0
Protection System
A system that protects electrical systems from faults by isolating the problematic part from the remainder of the system, preventing power from being cut from healthy elements, improving system dependability and efficiency is the protection system. Protection devices are the equipment that are utilized to implement the protection system.
Predictive Maintenance System
Predictive maintenance technologies are designed to assist in determining the state of in-service equipment so that maintenance can be scheduled. Predictive maintenance is the application of information; proactive maintenance approaches examine the condition of equipment and anticipate when it should maintain. The purpose of predictive maintenance is to forecast when equipment will fail (depending on a variety of parameters), then prevent the failure through routine and corrective maintenance.Condition monitoring is the continual monitoring of machines during process conditions to maintain optimal machine use, which is necessary for predictive maintenance. There are three types of condition monitoring: online, periodic, and remote. Finally, remote condition monitoring allows the equipment observed from a small place and data supplied for analysis.
Preventive Maintenance System
To maintain the equipment and materials on a regular basis in order to maintain those running conditions and reduce unnecessary shutdowns due to unexpected equipment failure is called Preventive Maintenance (PM).
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