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US 9,958,492 B2Granted
Partial discharge signal detection using resistive attenuation
AssigneeAktiebolaget Skf
InventorsAdam Bierman, Michael Hon
Life of this patent
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Abstract
The disclosure herein relates to a partial discharge detection board comprising a high voltage resistor divider. The high voltage resistor divider can reduce a voltage peak of an impulse surge generated by a surge board. The high voltage resistor divider can also include a high side with a first resistance and a low side with a second resistance.
Claims10
A system comprising:
- a host unit;
- a surge board;
- a partial discharge detection board comprising an operational amplifier and a high voltage resistor divider configured to reduce a voltage peak of an impulse surge generated by the surge board,
- wherein the partial discharge detector board is directly integrated with the surge board in the host unit enabling the host unit to analyze and compare the impulse surge and a reflective waveform generated by the impulse surge,
- the high voltage resistor divider comprising:
- a high side comprising a first resistance,
- wherein the high side is connected to a line connection that receives from the host unit the reflective waveform;
- and
- a low side comprising a second resistance, wherein the low side connects the high side and the operational amplifier,
- wherein the second resistance comprises a low value gain resistor connected to a ground,
- and wherein the first resistance comprises 200 k Ohm of resistance.
8 more elements
Dependencies are inferred from the claim text.