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Intelligent distribution transformer

A technology for distribution transformers and intelligent power distribution, applied in transformers, variable transformers, inductors, etc., can solve the problems of reduced insulation strength of transformers, increased probability of accidents, and inaccessibility of operation, so as to achieve intrinsic safety, The effect of strong insulating ability and high accuracy

Active Publication Date: 2016-03-02
HUAIBEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
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AI Technical Summary

Problems solved by technology

[0002] Existing distribution transformers are generally installed in remote locations, and the transformer is a high-voltage electrified body, which cannot be monitored during operation
The body of the oil-immersed transformer is immersed in the insulating liquid. The main material of the insulation is the liquid insulating liquid. If the liquid level is insufficient or the temperature of the insulating liquid is too high, the insulation strength of the transformer will decrease, which will threaten the safety of the transformer operation and increase the probability of accident

Method used

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  • Intelligent distribution transformer

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] As shown in the drawings, the present invention includes a distribution transformer 1, an on-load capacity regulating tap changer 2, an intelligent liquid level temperature sensor 3, an on-line monitoring device 4 for voltage and current of a distribution transformer, an industrial computer 46, and the like.

[0014] The on-load capacity regulating tap changer 2 and the intelligent liquid level temperature sensor 3 are all installed on the case cover of the distribution transformer 1, and are respectively connected to the industrial computer 46;

[0015] The on-line monitoring distribution transformer voltage and current device 4 includes a power distribution cabinet 47, an all-fiber optic current transformer, an optical voltage transformer, and a merging unit 45; the all-fiber optic current transformer includes an all-fiber optic current transformer electrical u...

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Abstract

The invention discloses an intelligent distribution transformer, solving the problem that the current transformer state information cannot be transmitted. The intelligent distribution transformer is characterized in that: the box cover of the distribution transformer 1 is provided with an on-load capacity regulation and voltage regulation tap switch 2 and an intelligent liquid level temperature sensor 3; the on-load capacity regulation and voltage regulation tap switch is connected to a device for online monitoring current and voltage of the distribution transformer consisting of a power distribution box, a full optical fiber current mutual inductor, an optical voltage mutual inductor and a combined unit. The intelligent distribution transformer precisely measures current and voltage on the secondary side of the power distribution transformer, returns the feedback to the on-load capacity regulation and voltage regulation tap switch, enables the on-load capacity regulation and voltage regulation tap switch to perform switching between the big capacity and the small capacity according to the change in the load and determines that whether the operation state of the transformer is faulted according to the temperature and the liquid level signal, promptly gives the feedback to the industrial control system and realizes the intelligent regulation of voltage and capacity.

Description

technical field [0001] The invention relates to a distribution transformer, more specifically to an intelligent distribution transformer capable of automatically processing according to load changes. Background technique [0002] Existing distribution transformers are generally installed in remote locations, and the transformer is a high-voltage electrified body, which cannot be monitored during operation. The body of the oil-immersed transformer is immersed in the insulating liquid. The main material of the insulation is the liquid insulating liquid. If the liquid level is insufficient or the temperature of the insulating liquid is too high, the insulation strength of the transformer will decrease, which will threaten the safety of the transformer operation and increase the probability of an accident. Since the status information of the transformer cannot be transmitted, frequent inspections are required to ensure safe operation. Contents of the invention [0003] The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P13/00H01F29/04H01F27/40G01D21/02G01R31/12
CPCG01D21/02G01R31/1227H01F27/402H01F29/04H02P13/00
Inventor 李淮海冮春惠柴丛信白井峰丁明
Owner HUAIBEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
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