 
 <prompt> Wetin dey produce hydrogen for power transformers? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```From all the fault gases wey dey form for power transformers, hydrogen na di most common and e dey generate under most fault conditions; so, if hydrogen dey form, e be early indication say serious problem dey for di transformer life cycle.``` 