1. a) Design a combination circuit that has four LED’s and one resistor. Each LED will be in parallel and have its own switch. The circuit will have a resistor in series with the LED’s while they are connected in parallel. Each LED’s will drop 1.4vDC in parallel, with the same specifications. Make sure you size R1 (resistor R1) correctly using a VT of 9v. Each LED branch will have 20mA of current through it. Calculate all values including power at each component. b) Also, if the 9v battery had a rating of 2 watt-hours, how long would it last? If you wanted to make each LED 1/3 brighter than the other in parallel, how would you change the circuit to make that happen? Explain and show calculations. (Hint… you do not need transistor(s), but you can use them in your design).
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).
1.
a) Design a combination circuit that has four LED’s and one resistor. Each LED will be in parallel and have its own switch. The circuit will have a resistor in series with the LED’s while they are connected in parallel. Each LED’s will drop 1.4vDC in parallel, with the same specifications. Make sure you size R1 (resistor R1) correctly using a VT of 9v. Each LED branch will have 20mA of current through it. Calculate all values including power at each component.
b) Also, if the 9v battery had a rating of 2 watt-hours, how long would it last? If you wanted to make each LED 1/3 brighter than the other in parallel, how would you change the circuit to make that happen? Explain and show calculations. (Hint… you do not need transistor(s), but you can use them in your design).
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