In STEP 6 you added D2 and R4 to the circuit, parallel to B1. Which answer best describes the effect of that change? O D2 lights up continually, regardless of whether the switch is open or closed, because the connection bypasses B1, which is still controlled by the transistor and switch. O Since the added path is parallel to B1, the two paths divide the current that originally flowed only through B1. The total current through the transistor remains unchanged. O The buzzer, LED, and transistor all together in the circuit use more current than the PSB can deliver. This reduces the current to each, so additional resistors are not required. O The parallel connection decreases the total resistance in the circuit. This increases the total current through the circuit, all of which must pass through the collector and emitter of the transistor, because the transistor controls the flow of current through both paths.
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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