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Current transformer oil drain valve with control valve

A technology of current transformer and control valve, applied in the direction of transformer/inductor cooling, etc., to prevent oil leakage, reduce waste, and improve work efficiency

Active Publication Date: 2013-07-17
HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing current transformer oil drain valve, the present invention provides a current transformer oil drain valve with a control valve
The oil drain valve solves the technical problem of current transformer oil drain by installing a control valve on the connecting pipe and setting two sealing rings at the connecting end

Method used

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  • Current transformer oil drain valve with control valve
  • Current transformer oil drain valve with control valve
  • Current transformer oil drain valve with control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] As shown in the figure, a control valve 2 is installed at one end of the connecting pipe 1, and a top wire 3 is connected to the outer end of the control valve. A movable external connection 4 is arranged on the connecting pipe at the opposite end of the control valve and the top wire; The activity is connected 6, and the sealing ring 7 is sleeved on the connecting pipe of the activity. There are two sealing rings, which are set side by side on the connecting pipe.

[0018] Use of the invention

[0019] When in use, open the oil discharge port of the current transformer, screw the top screw into the oil discharge port, open the oil release valve, the oil will flow out through the connecting pipe, movable inner connection and connector, and when the amount of oil is reached, close the control valve, stop taking oil, and unload the top wire from the oil drain port of the current transformer to complete an oil taking operation.

[0020] The connection head can connect th...

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PUM

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Abstract

The invention provides a current transformer oil drain valve with a control valve. The control valve is arranged at one end of a connecting tube; the outer end of the control valve is connected with a top thread; a movable outer joint is arranged at one end, opposite to the top thread, of the control valve; a movable inner joint is arranged at one end of a connecting head; and two sealing rings are sleeved on a jointing tube of the movable inner joint in parallel. As the control valve is arranged on the connecting tube, the oil drain quantity of the oil drain valve can be controlled; and as the two sealing rings are sleeved on the jointing tube at the connecting end, total sealing can be realized and oil leakage can be prevented. The control valve is suitable to be arranged on a current transformer and applied to oil drain.

Description

technical field [0001] The invention provides a current transformer oil discharge valve provided with a control valve and used for current transformer oil discharge in the electrical field. Background technique [0002] The 220kv current transformer usually maintained, the model is LCB7-220W1, is an outdoor type, and the oil weight is 365kg. Due to seasonal changes, the temperature is high and the humidity is high in summer, which can easily cause the current transformer to be damp. Once the water content in the oil is greater than 10uL / L, oil treatment is necessary. [0003] There is no valve on the oil discharge part of the existing current transformer, it is not easy to grasp the oil discharge amount when the oil is discharged, and it is difficult to realize complete sealing of the connected single-channel sealing ring, so oil leakage is prone to occur. Affect the use effect. [0004] When the existing oil drain valve is installed, it is generally carried out under th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/14
Inventor 陈小平
Owner HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER