Problem 4: The circuit below is a common configuration that can be used to determine the value of a resistor, Rx. This is usually achieved by prescribing values for the R1 and R2 resistors, and then using an adjustable resistor (i.e., a “potentiometer") for R3. When the resistors are properly balanced, one could connect a resistor across the bridge at the points indicated by arrows and no current would flow across the resistor. Complete parts A - I. R₁ V₂ R₂ M Rx R3 Part A: Using the passive sign convention, make reference marks on the circuit (current directions and polarity symbols). Where needed, assign circuit variables to the elements. Indicate nodes (A,B,C, ...) and a ground that you would use for nodal analysis. Indicate meshes that you would use for mesh analysis. Part B: Suppose you want to determine the voltages across R3 and Rx very quickly. Briefly explain how this can be done by inspection (i.e., without formal analyses like nodal or mesh) by exploiting the circuit structure and indicate which features allow you to do this. (i.e., the solution by inspection, not a system of equations) Part C: Using your method, write down the voltages across R3 and Rx in terms of the circuit resistances and the battery voltage.
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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