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Capacitor protection device and its signal alarm control circuit

A capacitor protection and signal alarm technology, which is applied in emergency protection devices, capacitors, circuits, etc., can solve the problems of untimely detection and difficult detection of fuse blown, and achieve sensitive and reliable sound alarm, power factor and line loss management. Enhanced effect

Active Publication Date: 2018-08-21
国网河南登封市供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a capacitor protection device. The present invention effectively solves the technical problem that the existing capacitor fuse blown is not easy to be found or not found in time

Method used

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  • Capacitor protection device and its signal alarm control circuit
  • Capacitor protection device and its signal alarm control circuit
  • Capacitor protection device and its signal alarm control circuit

Examples

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Embodiment Construction

[0026] Such as image 3 As shown, a capacitor protection device according to the present invention includes a capacitor 1, a capacitor-specific fuse 2, a base 3 for connecting the fuse 2 and the capacitor 1, and the fuse 2 includes A movable fuse tube 21, a fixed fuse tube 22 and a tension spring 23 for connecting the movable fuse tube 21 and the base 3 are characterized in that: the capacitor protection device also includes a The travel switch 6 at the grounding bolt 4, the force contact 7 of the travel switch 6 is replaced by an extended insulating rod, and the top of the force contact 7 is slightly higher than the limit piece on the fuse base 25 and located on the fusing track of the active fuse tube 21.

[0027] The length of the force contact 7 is 15-17 cm, and the diameter is 0.7-0.9 cm.

[0028] The force contact 7 is a solid insulating material.

[0029] The force contact 7 is made of polyethylene epoxy resin.

[0030] A signal alarm control circuit containing the ...

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PUM

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Abstract

The invention discloses a capacitor protection device, including a capacitor, a special fuse for the capacitor, and a pedestal used for connecting the fuse and the capacitor. The fuse includes a movable fusion tube, a fixed fusion tube and a tension spring used for connecting the movable fusion tube and the pedestal, the capacitor protection device also includes a travel switch arranged in the position of a grounding bolt of the capacitor, a stressed contact of the travel switch is replaced by a lengthened insulating rod, and the top of the stressed contact is slightly higher than a limiting piece on a fuse base and is located on a fusing movement track of the movable fusion tube. The invention also discloses a signal alarm control loop. The capacitor protection device and the signal alarm control loop thereof are sensitive and reliable in signal indication and sound alarm, and successfully solve the problem that fusing of a capacitor fuse wire is not easy to discover or is not discovered in time.

Description

technical field [0001] The invention relates to a capacitor protection device and a signal alarm control circuit thereof, in particular to a special injection fuse fuse blown alarm device for high-voltage parallel capacitors. Background technique [0002] In order to reduce the reactive power transmitted in the power grid, reduce the loss of active power, and improve the voltage quality, power supply companies generally install parallel compensation capacitor banks in substations. Each capacitor bank is equipped with multiple capacitors, and each capacitor is usually equipped with a spray-type fuse. [0003] Such as figure 1 As shown, the common capacitor protection device includes a protected capacitor 1 , a fuse 2 , and a base 3 for connecting the capacitor 1 and the fuse 2 . The fuse includes an active fuse tube 21, a fixed fuse tube 22, a tension spring 23 for connecting the movable fuse tube and the base, a high-voltage fuse 24 in the fuse tube and a The limit piece ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G2/16H01H85/30
CPCH01G2/16H01H85/30
Inventor 刘信超申洪兴陈海林
Owner 国网河南登封市供电公司
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