Spanish to English Tech/Engineering Electronics / Elect Eng

Hello, I am translating a stock and non-stock inventory of all the products sold or used at a resort in Mexico. One of the entries says:

"Condensador enfriado agua 7 vueltas"

I was able to find that the first part almost certainly refers to "Water Cooled Capacitors." However, I could not find anything pertaining to this device in relation to the usual translations of the word "vuelta" (i.e. turn, rotation, revolution, etc.). Could this be a misuse of the word as synonym for "volt" or "voltio"? I look forward to any and all help on this matter. Thanks!