Intelligent transformer

A technology of smart transformers and transformers, applied in the fields of transformer/inductor cooling, electrical component structure association, electrical components, etc., can solve problems such as damage to power grid equipment, uncertainty of load grid fault use, and impact on user power quality. Achieving the effect of low cost

Inactive Publication Date: 2011-02-16
GUANGZHOU DIKO ELECTRONICS TECH
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Problems solved by technology

[0002] Due to the complexity of the load, the failure of the grid itself, and the uncertainty of the use of the power grid, the grid fluctuates greatly
The flu

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Embodiment Construction

[0044] In the following, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0045] Such as figure 1 In the smart transformer of the present invention, the transformer is an oil-invaded transformer 1, equipped with a master station 2, a circuit breaker 3, and an intelligent terminal controller 4 with interactive and control functions. The master station 2 communicates with the circuit breaker 3 and the intelligent terminal controller 4 through the RS485 interface, which constitutes the intelligentization of the transformer. At the same time, it also sets up devices with detection and execution functions:

[0046] 1. The transformer group 5 connected to the intelligent terminal controller 4 detects the A, B, C three-phase and N-phase currents in the three-phase four-wire grid, and the intelligent terminal controller 4 is real-time based on the signal fed back from the transformer group 5 Monitor the operating status of t...

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Abstract

The invention discloses an intelligent transformer, belongs to the field of power grid transformers, and relates to the intelligent transformer. The intelligent transformer comprises an oil immersed transformer (1), a master station (2), a circuit breaker (3) and an intelligent terminal controller (4), wherein the master station (2) is connected with the circuit breaker (3) and the intelligent terminal controller (4) through a communication interface respectively; and the intelligent terminal controller (4) is connected with a mutual inductor group (5) for detecting the three-phase four-wire state of a power grid, a temperature sensor (8) for detecting an oil temperature of the transformer, a pressure sensor (9) for detecting an oil-gas pressure of the transformer, an electronic tap-changer (6) and a reactive compensation system (7) for adjusting the efficiency of the power grid and stabilizing a voltage, and a safety valve (10) for emergency processing. The master station (2) monitors and controls various indicators of the operation of the transformer through the circuit breaker (3) and the intelligent terminal controller (4) according to the detection information of the intelligent terminal controller (4), so as to make the power grid safe and stable. The intelligent transformer has high performance, high reliability and low cost.

Description

Technical field [0001] The invention belongs to the field of power grid transformers and relates to an intelligent transformer. Background technique [0002] The power grid has great volatility due to the complexity of the load, the failure of the grid itself, and the uncertainty of use. The fluctuation of the power grid not only affects the quality of power consumption of users, but also easily damages the equipment of the power grid itself. Therefore, in order to reduce the fluctuation of the power grid and its impact, many substations have adopted smart transformers. Smart transformers can not only detect various indicators of the power grid, such as three-phase phase voltage, three-phase phase current, zero sequence voltage, zero sequence current, frequency, harmonic content, active power, reactive power, power factor, active energy, and no Parameters such as power and energy can also detect its own conditions, such as transformer oil temperature, oil pressure, etc. At the ...

Claims

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Application Information

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IPC IPC(8): H01F27/40H02J13/00H01F27/14
Inventor 虞晓骏谢松华罗春耕周亚波朱帅华陈鹏艾丽萍
Owner GUANGZHOU DIKO ELECTRONICS TECH
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