Question: ?1. A customer had sophisticated electronic equipment that kept tripping out causing down time and loss of money. The customer contacted you for advice to

?1. A customer had sophisticated electronic equipment that kept "tripping out" causing down time and loss of money. The customer contacted you for advice to solve the problem. You installed a power quality recorder and recorded the pattern, as shown in Figure1 below. Determine the problem and propose a solution to the problem. ?

? ? 1.50 -15v American Packaging (VSD) Phase A-B Transition Voltage. (Event 8490) Apr ?

2). A hospital was having problems with equipment failure in the intensive care unit. They said most failures occurred after an outage. The equipment supplier blamed the failures on "Power Surges" coming from the local utility. Propose a suitable solution to this problem.?

3). An inverter with a 3 kHz switching frequency is connected to a 50 k? load. Design a passive filter to ensure that the Total Harmonic Distortion for current is low.?

1.50 -15v American Packaging (VSD) Phase A-B Transition Voltage. (Event 8490) Apr 21 1997 06:36:30.270 AMM 26 667 milliseconds/div Figure 1 Ac

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