Preliminary study of the evaporative cooling cast resin transformers

Niu, Wenhao; Li, Ning; Xu, Zhengyang; Jin, Chengxiang; Zhang, Bai; Zhong, Haifeng; Zhang, Guoqiang

doi:10.1109/ciced.2012.6508688

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…In the decades of research progress, the durability and aging resistance of fluorocarbon coolant have also been tested and a lot of engineering practice experience and technical reserves have been accumulated, which provides a solid foundation for the application of evaporative cooling technology in transformer. The evaporative cooling transformer has also been made a subject of preliminary application attempt in the early stage [8,9]. At present, the research and development of conventional evaporative cooling transformer is relatively backward because of the high cost of coolant.…”

Section: Introductionmentioning

confidence: 99%

Application of Evaporative Cooling Technology in Transformer for Mine Tunnels

Hualin

Xiong

Liu³

et al. 2021

Processes

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The traditional dry-type mine transformer has some disadvantages, such as incomplete fire prevention, large volume, high loss and not enough environmental protection. Based on evaporative cooling technology, this paper proposes a scheme of mine transformer using fluorocarbon as coolant which can truly realize the incombustible transformer scheme and meet the strict environmental requirements. The transformer adopts three-dimensional wound core structure to reduce the loss and improve the anti-short-circuit ability. The volume of transformer is greatly reduced due to the efficient heat dissipation ability of evaporative cooling technology. The scheme of plate fin heat exchanger is more suitable for the ventilation condition of the mine. The filling technology is used to reduce the amount of expensive coolant. Through the life cycle cost analysis, evaporative cooling transformer has better economic benefits than traditional mine transformer, but also has better safety benefits. A prototype is manufactured and tested, and the results show that the prototype meets the requirements of IEC standard temperature rise limit and achieves the expected requirements.

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Section: Introductionmentioning

confidence: 99%

Application of Evaporative Cooling Technology in Transformer for Mine Tunnels

Hualin

Xiong

Liu³

et al. 2021

Processes

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Preliminary study of a relay transmitted cooling system with heat pipes and LHP system in large capacity gas insulated transformers

Niu

Zhang

Zhong

2014

2014 17th International Conference on Electrical Machines and Systems (ICEMS)

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The growing rated capacity of gas insulated transformers (GIT) are confined by the limitation of cooling capability. Hence a new thermal relay transmitted cooling system was applied in GIT and presented in this paper. The whole cooling system consists of conventional heat pipes and loop heat pipe (LHP): Dozens of non-metallic conventional heat pipes are distributed in the windings, absorbing heat and transmitting it to the LHP cooling system which is attached to the upper part of the conventional heat pipes. Then the LHP system brings heat out of the transformer and dissipates it to circumstance by boiling and condensing circulation of the fluorocarbon liquid in the LHP system. This relay transmitted cooling system is selfcirculated, needing no additional blowers or fans installed in transformers. An experimental model is designed, fabricated and tested, and the testing results demonstrated that it could improve the cooling capability of GIT greatly, and has the feasibility to develop GIT of larger capacity.

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Preliminary study of the evaporative cooling cast resin transformers

Cited by 2 publications

References 1 publication

Application of Evaporative Cooling Technology in Transformer for Mine Tunnels

Application of Evaporative Cooling Technology in Transformer for Mine Tunnels

Preliminary study of a relay transmitted cooling system with heat pipes and LHP system in large capacity gas insulated transformers

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