Firing and explosion prevention high voltage capacitor

Abstract

The invention discloses a firing and explosion prevention high voltage capacitor, comprising a metal enclosed shell (6) and a shell cover component (2) with two exterior connection terminals (1); the shell (6) is internally provided with a set of capacitor cores connected in parallel and series; the two connection ends (8) of the capacitor core set are respectively connected with the two exterior connection terminals (1) by lead wires (4); the shell (6) is filled with steeping fluid (9) which is 330 methyl silicone oil; and the middle part of the shell (6) is provided with an annular groove (5) arranged in circumferential direction along the shell (6). With the above structure adopted, as the steeping fluid in the capacitor is 330 methyl silicone oil, the flaming-free property ensures that the capacitor can not fire or explode when the electric quantity is too large or the capacitor leaks; meanwhile the capacitor can be bound on other parts by the annular groove to avoid falling off during use.

Description

technical field [0001] The invention relates to a power capacitor, in particular to an explosion-proof and flame-proof high-voltage capacitor suitable for oil field drilling platforms. Background technique [0002] Power capacitors are important components in systems for power transmission and distribution. High-voltage AC power capacitors with metallized film polypropylene media are used in oil drilling platforms. Due to the need for long-term continuous operations at sea, the operating environment conditions Very nasty. In the prior art, the shell insulation of capacitors is composed of paper film and oil gap. But this capacitor has the following disadvantages: [0003] ①Because the use environment of this kind of capacitor is below 1500 meters underground, the strictness requirements are very high, so once the capacitor is used improperly and the internal power of the capacitor is too high, it will explode and burn in the energized state, thus cause safety accidents. ...

AI Technical Summary

Problems solved by technology

[0003] ①Because the use environment of this kind of capacitor is below 1500 meters underground, the strictness requirements are very high, so once the capacitor is used improperly and the internal power of the capacitor is too high, it will explode and burn in the energized state, thus cause safety accidents

[0004] ②Because the capacitor is installed on the drill bit of the oil field drilling machine, there is no fixed structure on the capacitor, so it is easy to fall off the drill bit

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