Voltage spike suppressor

Details Voltage spike suppressor Voltage spike suppressor

1998-11-19

2000-07-11

Gaffin, Jeffrey

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

361 58, 361118, H02H 320

Patent

active

060882093

ABSTRACT:
A voltage spike suppressor for polyphase systems including those with alternatively connectable polyphase sources, the suppressor having a diode bridge network connected to couple overvoltage transients exceeding the nominal line voltage by more than twice the forward drop of a diode in the bridge network to a capacitor and resistor network. In four-wire systems, a center-tap in the capacitor and resistor network can be connected to the neutral lead in the power circuit. Metal Oxide Varistors may be used to clamp the center-tap voltage in the capacitor-resistor network. A diode clamp circuit may be used to limit common-mode voltage transient swings in the capacitor-resistor network and in the neutral terminal when present.

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