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Oil-submerged pump control device

A technology for control devices and submersible pumps, applied in pump control, non-variable pumps, machines/engines, etc., can solve problems such as misoperation of gas relays, and achieve the effect of avoiding misoperation and eliminating risks

Inactive Publication Date: 2021-02-23
广西电网有限责任公司梧州供电局
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when four 220kV transformers are cooled by forced oil circulation, it is found that when more than two oil pumps are started at the same time, there is a risk of misoperation of the main body gas relay

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] specific, figure 1 It shows a schematic structural view of the submersible pump control device in the implementation of the present invention, the submersible pump control device includes: N control loops, each control loop in the N control loops is connected to a submersible pump, and the N control loops The loop is connected to the air-cooled box, and the N is a natural number greater than or equal to 2; N-1 delay control modules are arranged in the N cont...

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Abstract

The invention discloses an oil-submerged pump control device. The oil-submerged pump control device comprises N control loops, each control loop in the N control loops is connected with an oil-submerged pump, the N control loops are connected with an air cooling box, and N is a natural number larger than or equal to 2; and N-1 time delay control modules are arranged in the N control loops, each time delay control module comprises a time relay, and the time relays on the adjacent control loops in the N control loops are arranged according to a preset time interval. According to the oil-submerged pump control device, a time-delay function is added to the control loops of the oil-submerged pumps, the time-sharing starting is realized by utilizing the relays, and the synchronous starting of each oil-submerged pump of a main transformer is avoided, so that the existing risk is avoided.

Description

technical field [0001] The invention relates to the technical field of electric power control, in particular to a submersible oil pump control device. Background technique [0002] At present, when four 220kV transformers are cooled by forced oil circulation, it is found that when more than two oil pumps are started at the same time, there is a risk of misoperation of the main body gas relay. In order to eliminate risks and avoid misoperations, it is necessary to design and modify the control circuit of the submersible pump of the strong oil main transformer to avoid the risk of misoperation of the main gas relay. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a submersible pump control device, which adds a delay function to the control circuit of the submersible pump, uses a relay to realize time-sharing start, and avoids synchronous start of the submersible pumps of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00
CPCF04D15/00
Inventor 李波谭昌建黄卓著刘柳燕刘嘉露邓强
Owner 广西电网有限责任公司梧州供电局
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