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Oil control device and method for solid fire test of extra-high voltage alternating-current transformer

A UHV AC and test oil technology, which is applied in transformer testing, measuring devices, and lubrication indicator devices, etc., can solve the problems of high operating temperature of UHV AC transformers, difficulty in fire fighting, and high oil temperature

Active Publication Date: 2022-04-12
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the UHV AC transformer operates at a high temperature, making fire fighting difficult and taking a long time to extinguish the fire, resulting in high oil temperature in case of fire

Method used

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  • Oil control device and method for solid fire test of extra-high voltage alternating-current transformer
  • Oil control device and method for solid fire test of extra-high voltage alternating-current transformer
  • Oil control device and method for solid fire test of extra-high voltage alternating-current transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Such as Figure 5 As shown, an oil control device for a UHV AC transformer solid fire test, including a data acquisition and central control system and an oil storage tank test oil module connected to it, an oil module for the body change test, and an oil module for the adjustment and replacement test , Oil module for oil sump test, oil module for spilled oil storage tank test.

[0079] Such as Figure 5 As shown, the data acquisition and central control system includes a processor, a control loop connected to the processor, and a display; the processor, control loop, and display are all prior art. The oil module for the oil storage tank test, the oil module for the main body transformer test, the oil module for the adjustment and replacement test, and the oil module for the oil sump test are all connected to the control circuit.

[0080] The test oil module of the oil storage tank is used to control the direction of the test oil in the oil storage tank, such as figu...

Embodiment 2

[0107] The present invention also discloses a control method using the above-mentioned oil control device for the solid fire test of the UHV AC transformer, such as Image 6 shown, including the following steps:

[0108] S1: self-test

[0109] Perform self-inspection and other initialization work on all system equipment;

[0110] S2: oil injection

[0111] Open the oil delivery mechanism, the body variable oil injection mechanism, the adjustment and replacement oil injection mechanism, the oil sump oil injection mechanism, and the overflow oil storage tank oil injection mechanism according to the predetermined plan; specifically, open the body variable oil delivery valve 12, the adjustment and replacement oil delivery valve 13, Oil collection pit oil delivery valve 14, overflow oil storage tank oil delivery valve 15, main body variable oil injection valve 23, said adjustment and replacement variable oil injection valve 33, oil collection pit oil injection valve 43, overflow ...

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Abstract

The invention discloses an oil control device and method for an extra-high-voltage alternating-current transformer entity fire test. The oil control device comprises a data acquisition and central control system, an oil module for an oil storage tank test, an oil module for a body transformer test, an oil module for an adjustment and compensation transformer test, an oil module for an oil collection pit test and an oil module for an overflow oil storage tank test. The oil storage tank test oil module comprises an oil storage tank and an oil transportation mechanism. The oil outlet end of the oil transportation mechanism is provided with a body variable oil transportation end, an adjusting and supplementing variable oil transportation end, an oil collection pit oil transportation end and an overflow oil storage tank oil transportation end. The method comprises the steps of self-inspection, oil injection, cyclic heating, ignition, overflow fire formation, fire extinguishment, oil discharge and test termination. The device has the advantages that oil for testing can be managed and controlled in the whole process, the functions of oil injection and heating before testing, overflow in testing, oil discharge after testing and the like are achieved, and effective development of an extra-high-voltage alternating-current transformer entity fire test is guaranteed.

Description

technical field [0001] The invention relates to the field of fire safety of UHV AC stations, in particular to an oil control device and method for a UHV AC transformer entity fire test. Background technique [0002] In recent years, with the rapid development of my country's economy and the rapid growth of electricity consumption, a number of UHV AC power transmission and transformation projects have emerged. The UHV substation is the hub of the AC transmission system. The UHV transformer is one of the core equipment of the UHV substation. Its safe and stable operation is the basis for the normal operation of the UHV AC transmission system. The 1000kV UHV transformer is composed of two parts: the main transformer and the adjusting and supplementary transformer. The oil storage capacity of the main transformer is generally about 130t, and the oil storage capacity of the adjusting and supplementary transformer is generally about 50t. Its oil storage capacity far exceeds that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/62G01F23/00G01K13/00
Inventor 刘睿张佳庆谢佳黄伟民过羿黄玉彪苏文尚峰举彭明智李永熙吴永恒
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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