Simulation transformer gas relay device and sample gas preparation and acquisition method thereof
A technology of gas relays and analog transformers, which is applied in the direction of instruments, teaching models, educational appliances, etc., can solve the problems of slow gas generation, lack of conditions for operation training, and failure to meet the needs of technicians for operation training, so as to achieve safe operation and use Low cost, accurate and controllable gas production
Inactive Publication Date: 2016-05-25
STATE GRID SHANDONG ELECTRIC POWER +4
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Problems solved by technology
[0011] (2) Latent fault: The theoretical value of free gas in the relay is approximately equal to the measured value of dissolved gas in oil, and the concentration of dissolved gas is slightly higher than the theoretical value, indicating that the equipment has a problem of slow gas generation.
Therefore, the actual equipment does not have the conditions for operation training, cannot meet the operation training needs of technicians, and cannot simulate various fault states
Method used
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[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0045] A device for calibrating an online chromatograph for transformer oil, comprising:
[0046] The regulating oil tank 30 is provided with an emptying valve 29 and an oil inlet valve 32, capable of storing transformer oil, located at the upper end of the main oil tank 13, and communicated with the main oil tank 13;
[0047] The main oil tank 13 has a constant pressure oil discharge device inside, which is used to prepare and preserve transformer oil samples. The main oil tank 13 communicates with the regulating oil tank 30, and the oil volume change is stored and supplemented by the regulating oil tank 30 when the oil temperature changes;
[0048] The auxiliary oil tank 3 communicates with the main oil tank 13, with a circulation pump 6 and a vacuum pump 1 on the outside, and an atomization system inside to purify the recycled oil and remov...
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Abstract
The invention relates to a simulation transformer gas relay device and a sample gas preparation and acquisition method thereof. According to the method, through mutual cooperation of a main oil tank, an adjustment oil tank, a secondary oil tank and a transformer gas relay device, large-capacity standard transformer oil samples with random characteristic gas concentrations can be accurately prepared, online verification on oil chromatography in matching with a power transformer is convenient, components and contents of various types of characteristic gases in the oil are accurately controlled, and long-time constant-value preservation under the normal temperature can be realized. The prepared transformer oil can be outputted in a continuous and constant-pressure mode, use cost is low, operation is safe, and the method is rapid and convenient, the transformer oil employs a purifying and cycle use mode, and economical performance and environmental protection are realized.
Description
technical field [0001] The invention relates to a device for simulating a transformer gas relay, and also relates to a method for using the device to prepare gas samples in transformer gas relays under various transformer faults. Background technique [0002] During the operation of oil-filled electrical equipment such as transformers, different fault states will produce different characteristic gases (mainly including CH 4 、C 2 h 6 、C 2 h 4 、C 2 h 2 , CO, CO 2 、H 2 Wait). The gas production rate of all faults is closely related to the energy release of the fault. For faults with low energy and slow gas release (such as low-temperature hot spot or partial discharge), most of the generated gas is dissolved in oil, and the whole is basically in a balanced state; for faults caused by large energy (such as iron core overheating) Gas generation is rapid, and bubbles may form when the rate of gas generation is greater than the rate of dissolution. During the rising of t...
Claims
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Login to View More IPC IPC(8): G09B23/18
CPCG09B23/182G09B23/188
Inventor 李勇李艳萍王贵明于艺崔斌张维勇韩孟良
Owner STATE GRID SHANDONG ELECTRIC POWER