Mute power capacitor

A power capacitor, mute technology, applied in the direction of capacitors, electrical components, etc., can solve the problems of increasing cost, increasing the volume and oil consumption of capacitors, and failing to achieve the effect of noise reduction panels, to enhance the insulation effect, strengthen the structural characteristics and functions. effect, the effect of improving the applicable range and the withstand voltage level

Inactive Publication Date: 2015-12-09
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this noise reduction board does not achieve the desired effect, and at the same time increases the volume and oil consumption of the capacitor, thereby increasing the cost

Method used

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  • Mute power capacitor
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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0021] Such as figure 1 As shown, a silent power capacitor of the present invention includes a shell 1, a core 3 and a core encapsulating film 2 arranged in the shell 1, an outlet terminal 5 fixed on the outside of the shell 1, and a core lead 4; the core 2 is externally coated The encapsulation film 2 ; Specifically, a layer of polyester fiber mesh skeleton layer 22 is arranged between two base films 21 made of cable paper, and plastic damping grease 23 is filled therein. When the sound wave emitted by the core of the power capacitor passes through the encapsulating film, the sound wave is rapidly attenuated in the plastic damping grease material, thereby greatly reducing the operating noise of the power capacitor. Since the plastic damping grease has a certain degree of fluidity, it is ea...

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Abstract

A mute power capacitor of the present invention comprises a shell, a core and a core encapsulating film which are arranged in the shell, outgoing line terminals fixed outside the shell, and core leading-out wires. The encapsulating film is wrapped on the exterior of the core and is composed of two layers of basement films, a netted skeleton layer clamped between the two layers of basement films and the plastic damping grease filled in the gaps between the two layers of basement films and the netted skeleton layer. By compositing the two layers of basement films and the plastic damping grease, a practical and convenient core external encapsulating structure is provided, so that the core can be fastened very well, a lead wire structure can be protected, the insulation between the core and the shell can be satisfied, and the structure characteristic and the effect of the mute power capacitor can be enhanced by the arrangement of the two layers of basement films, and the product technological process is simplified. By utilizing the plastic damping grease as the receptor, the operation noise of the power capacitor can be reduced effectively, thereby realizing a mute effect. Meanwhile, the damping grease is formed by compositing the special high-molecular materials of good electrical insulating property, so that the insulation effect is enhanced, and the suitable range and the voltage resistant grade of a product are improved.

Description

technical field [0001] The invention relates to the technical field of power capacitors, in particular to a silent power capacitor. Background technique [0002] With the development of the electric power industry, the application scale of power capacitors is getting larger and larger, especially in the complete sets of power capacitors used in large quantities in ultra-high voltage transmission systems, each capacitor set is often hundreds or even thousands of high-voltage power capacitors. Capacitors are combined in series and parallel, and this capacitor device plays an important role in improving the power factor and transmission capacity of the power system. [0003] However, a new problem that troubled everyone also appeared, which is noise. People usually think that power capacitors belong to static power equipment, and will not produce large noise during work. In fact, large power capacitors are in operation due to factors such as harmonics and strong electromotive ...

Claims

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Application Information

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IPC IPC(8): H01G2/10
Inventor 袁奥琪马平
Owner CHINA XD ELECTRIC CO LTD
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