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O Recognizing Power Problems
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AC power alternating current amperes appears battery bonding building cable called capacitor cause chapter charge chassis circuit common-mode noise components computer power conductor current flow current will flow damage device diagram discussion disk electrical power electronic energy equipment ferro filter ground loop ground wire half cycle high-frequency IEEE inductive reactance inductor input inrush inverter isolation transformer lightning load look low-impedance path manufacturers milliseconds neutral and ground neutral-to-ground noise frequencies noise impulse normal normal-mode noise ohms on-line outage output peak personal computers potential power conditioner power line power problems power source power system power-line conditioner primary protection rectifier sags secondary windings shield shown in Fig shows sine wave single-point ground square wave surge protectors surge suppressor switching power supply tap switchers term three-phase transient unit UPSs utility power varistors voltage drop voltage regulation volts watts waveform waveshape zener diode