Again assume each channel of our power supply can provide 30 V and we want to run a 60 V hair dryer motor. So, we again put the two channels in series for double the voltage. But, if you try this with a non-isolated supply, bad things will happen. Don't do that. The following depicts a circuit where internally the supplies have a common ground (i.e., they are not isolated). Non-Isolated Power Supply Droop2 www 1mQ Channel2 30V 3.3A max Channel1 30V 3.3A max I 1 Droop1 I ww 1mQ Red 1 I I 1 Black Red Black JumperCable 26m0 15A max Motor 1200 Needs -60V (a) Show that the current through the jumper cable will greatly exceed its current rating (which, as shown in the schematic, is 15 A). If this happens for more than a very short time, it will melt. (b) Show that the current through Channell greatly exceeds its maximum current rating. If the short circuit protection circuitry doesnt activate quickly, you will fry your power supply. Hint: You can redraw the circuit in a manner similar to what we have seen in a couple of other instances where it appears parts of the circuit are mostly, but not completely, decoupled from each other.
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).
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
