Method of lowering impact induction potential of large volume autotransformer

An autotransformer, induced potential technology, applied in the direction of transformers, variable transformers, fixed transformers, etc., can solve the problems of increased cost, increased transformer volume, and no use, and achieves low cost, strong shock wave absorption, and safety. reliable results

Active Publication Date: 2005-03-30
TBEA SHENYANG TRANSFORMER GRP CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0002] Currently commercially available autotransformers, in order to reduce or weaken the destructive effect of lightning shock waves on the autotransformer, the method of shielding the working coil is usually used in the transformer to improve t...
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Abstract

The disclosed method prevents hazard such as breakdown, short circuit and fire ignition caused by lightning surge on electrical product. In the method, capacitance in use for absorbing electric potential of shock wave in capacity 9000-12000PF and impulse withstand voltage 475KV-525KV is connected to excitation winding of controlling change of magnetic flux in parallel. Advantages are: high capacity of absorbing electric potential of shock wave, on the safe side and beneficial to raise quality of product.

Application Domain

Transformers/inductances coils/windings/connectionsVariable inductances +4

Technology Topic

Shock waveMagnetic flux +9

Image

  • Method of lowering impact induction potential of large volume autotransformer

Examples

  • Experimental program(1)

Example Embodiment

[0008] Autotransformer capacity

PUM

PropertyMeasurementUnit
Capacitance9000.0 ~ 12000.0PF

Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

  • Good lightning protection effect

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