Cooling verification method and device of power transformer cooling equipment

Abstract

The embodiment of the invention discloses a cooling verification method of power transformer cooling equipment. The method comprises the following steps: establishing a temperature database of each part of a transformer without cooling equipment; then manufacturing a cooling fin model which is scaled down in an equal proportion; connecting to an oil cooling cycle; carrying out preheating through aheating device; finely adjusting the temperature of an oil cooling liquid by using a temperature fine adjustment device according to the temperature database; installing the heat dissipation equipment which is scaled down in the equal proportion; starting the heat dissipation equipment to detect the temperature change of a cooling fin; comparing acquired temperature change data with cooling simulation data; and completing cooling verification, wherein the cooling equipment includes a heat dissipation pipe, an oil outlet pipe, a heating box used for heating the oil cooling liquid, a pressure pump used for enabling the oil cooling liquid to flow circularly and an oil inlet pipe which are connected together in sequence. During usage, a fine adjustment assembly is utilized to control a temperature difference among the plurality of cooling fins in actual use so that simulation is more vivid.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a cooling verification method and verification device for power transformer cooling equipment. Background technique [0002] A transformer is a static electrical device that converts AC power of one voltage into AC power of another voltage with the same frequency through the application of electromagnetic induction. The main components are primary coil, secondary coil and iron core. [0003] There are many kinds of current transformers, which can be divided into dry-type transformers and oil-immersed transformers according to the cooling method. For oil-immersed transformers, oil can be used as the cooling medium to achieve rapid cooling of the transformer during operation, but In the actual practical process, depending on the external environment, sometimes it is necessary to install a radiator on the oil-cooled heat sink to stabilize the temperature of the transformer with...

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Problems solved by technology

[0004] Since the transformers are operated at high voltage, it is inconvenient to directly detect the cooling effect of the cooling equipment when designing the cooling equipment. It can only be calculated theoretically through simulation software, which will easily lead to certain problems when designing the cooling equipment. defect problem

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