3. You are testing a new 9V battery design at your company. You first connect a voltmeter directly to the battery and measure 8.96 V between the terminals. Then, you connect a 98.8 Ohm resistor between the terminals and measure the voltage across this external resistor. This time you measure 8.67 V. (a) Draw and label two circuit diagrams, one for each measurement. (You don't need to explicitly draw the voltmeter. But, if you wish to, you can indicate it by a circle with a "V" in the center. The voltmeter senses the voltage but no current flows through it, so electrically it acts as an open circuit.) (b) Calculate the battery voltage and the internal resistance of the battery (i.e., provide the two values that constitute the Thévenin model of this battery).
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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