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On-load tap-changer and on-line oil filter integrated machine and oil filtering method

A technology of on-load tapping and integrated machine, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as waste, and achieve the effects of avoiding waste, reducing the number of times of use, and prolonging the working life

Inactive Publication Date: 2012-06-20
NINGBO ELECTRIC POWER BUREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides an on-line oil filter integrated machine for on-load tap changers and an oil filter method, with the purpose of solving the problem of waste caused by frequent replacement of filter elements in existing integrated machines

Method used

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  • On-load tap-changer and on-line oil filter integrated machine and oil filtering method
  • On-load tap-changer and on-line oil filter integrated machine and oil filtering method
  • On-load tap-changer and on-line oil filter integrated machine and oil filtering method

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Embodiment Construction

[0028] The invention provides an on-load tap-changer on-line oil filtering method and an integrated machine. The on-line oil filtering is controlled according to the number of starts of the on-load tap-changer motor, which reduces the number of times the on-line oil filtering device is opened, thereby reducing the filter element The number of times of use extends the life of the filter element.

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] The invention discloses an online oi...

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Abstract

The invention relates to an on-load tap-changer and on-line oil filter integrated machine. The on-load tap-changer and on-line oil filter integrated machine comprises an on-load tap-changer and an on-line oil filter device arranged in a box body, wherein the on-line oil filter device comprises an oil pump motor, an oil pump, an oil suction pipe, a filter core, an oil outlet pipe and a counting control device; the oil pump motor is connected with a chassis trough a connecting device; the oil pump is connected with the oil pump motor; the oil suction pipe is connected with the oil pump and extends into the bottom of an insulating cylinder of the on-load tap-changer; the filter core is connected with the oil pump through a pipeline and is used for filtering insulating oil; the oil outlet pipe is connected with the filter core and is used for discharging the filtered insulating oil into the chassis; and the counting control device is connected with the oil pump motor and a switch motor of the on-load tap-changer and is used for acquiring the starting times of the switch motor and controlling starting of the oil pump motor when the starting frequency is equal to the preset value. The integrated machine can filter the insulating oil when the on-off switching frequency reaches the preset value, effectively reduces the filtering times on the premise of guaranteeing the filter effect and prolongs the service life of the filter core, so that the filter core is not exchanged frequently and waste is avoided.

Description

Technical field [0001] The invention relates to the field of automatic control, in particular to an on-line oil filtering integrated machine and an oil filtering method for an on-load tap changer. Background technique [0002] The on-load tap changer is the core component of the on-load regulating power transformer. It is a switching device that provides a constant voltage for the transformer when the load changes. Since the on-load tap changer switch is switched under load conditions, it contains an insulating cylinder, and insulating oil is installed in the insulating cylinder. The switch head is placed in the insulating oil to ensure the switching of the switch. safe operation. In addition, since free carbon and metal particles are easily generated during the switching process, the breakdown voltage of the insulating oil is reduced. Therefore, an online oil filter device needs to be installed inside the on-load tap-changer. This is the on-load tap-changer online filter. Oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D35/02H01F29/04H01F27/14
Inventor 江旭周仁才叶信彪贺贤华王瀚杰钱素静林华斌
Owner NINGBO ELECTRIC POWER BUREA
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