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US 2001/0055186 A1Published application
Zero threshold surge suppressor
AssigneeSquare D Company
InventorsRudy Christian Thomas Wodrich, Tommy Szechin Mok
Life of this patent
Estimating the term…
Abstract
The present invention provides diode bridge and a parallel type, capacitor based, phase to phase surge suppressor. The suppressor acts to suppress transient energy as soon as the spike exceeds the prevailing peak of the ac waveform. The system dissipates the spike by drawing current through the system impedance between the suppressor sand the source of the surge.
Claims17
A surge suppressor to suppress transient energy to a load from an ac power supply, comprising:
- (a) a diode bridge electrically coupled to the ac power supply for supplying electrical power to the load;
- (b) a plurality of capacitor units in a bank electrically coupled to said diode bridge to clamp the transient energy;
- and
- (c) a control unit to safely energize the suppressor and monitor operational status of the suppressor.
1 more element
A surge suppressor to suppress transient energy to a load from an ac power supply, comprising:
- (a) a diode bridge electrically coupled to the ac power supply for supplying electrical power to the load;
- (b) a plurality of capacitor units in a bank electrically coupled to said diode bridge to clamp the transient energy;
- (c) a control unit to safely energize the suppressor and monitor operational status of the suppressor;
- and
- (d) a precharge unit electrically coupled to said plurality of capacitor units for limiting an inrush current into said plurality of capacitor units upon initialization of the surge suppressor.
2 more elements
Dependencies are inferred from the claim text.