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Harmonic filter maintenance device

A harmonic filter and maintenance device technology, applied to harmonic reduction devices, DC circuits to reduce harmonics/ripples, AC networks to reduce harmonics/ripples, etc., can solve problems such as prone to failure

Pending Publication Date: 2019-07-09
LIVESINE ELECTRIC SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing harmonic filter cabinets are usually equipped with cooling fans or fans, but they are prone to failure if they are turned on for a long time without stopping

Method used

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Experimental program
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Effect test

Embodiment

[0022] A harmonic filter maintenance device, including a filter installation cabinet 1, the installation cabinet 1 is equipped with a cooling fan 2 and a temperature sensor 3, the device also includes an electric sprayer 4, the electric sprayer 4 is equipped with insulating cooling liquid, and the nozzle is facing downwards Stretch into installation cabinet 1 top, the motor of cooling fan 2 is connected with speed detection mechanism 5, and speed detection mechanism 5 is a speed sensor, and speed sensor and temperature sensor 3 are connected with the switch of electric sprayer 4 by controller 6 respectively.

[0023] There are two cooling fans 2, which are respectively connected with the controller 6, one as the main fan and the other as the standby fan.

[0024] The installation cabinet 1 is a metal cabinet.

[0025] The motor of electric sprayer 4 is connected with solar panel, as auxiliary power supply.

[0026] The speed detection mechanism 5 is connected with a wireless ...

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Abstract

The invention relates to a harmonic filter maintenance device. The device comprises a filter installation cabinet (1), wherein cooling fans (2) and a temperature sensor (3) are installed in the installation cabinet (1). The device is characterized in that the device also comprises an electric sprayer (4), an insulated cooling liquid is contained in the electric sprayer (4), a nozzle downwards extends into the top of the installation cabinet (1), a motor of each cooling fan (2) is connected with a speed detection mechanism (5), and the speed detection mechanism (5) and the temperature sensor (3) are connected with a switch of the electric sprayer (4) through a controller (6). Compared with the prior art, according to the device, when the temperature in the filter installation cabinet exceeds early-warning temperature and the fan motors do not rotate, the electric sprayer can be automatically started to cool the interior of the cabinet, and therefore the function of fault emergency disposal is achieved.

Description

technical field [0001] The invention relates to an electric energy management device, in particular to a harmonic filter maintenance device. Background technique [0002] Power harmonics mainly come from three aspects: one is the harmonics generated by low power generation quality; the other is the harmonics generated by the power transmission and distribution system; the third is the harmonics generated by electrical equipment, of which the harmonics generated by electrical equipment are the most , mainly from equipment that uses arcs with strong nonlinear characteristics as the working medium and switching power supply equipment based on power electronic components, such as gas discharge lamps, AC arc welding machines, steelmaking electric arc furnaces, rectifiers, inverters, frequency conversion In recent decades, with the rapid development of power electronics technology, the proportion of a large number of power electronic alternating devices and various nonlinear loads...

Claims

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Application Information

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IPC IPC(8): H02J3/01H02J1/02H02B1/56
CPCH02B1/565H02J1/02H02J3/01Y02E40/40
Inventor 戴维舒观澜
Owner LIVESINE ELECTRIC SHANGHAI CO LTD
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