Results 1 to 10 of about 219 (96)
Anti-override trip monitoring system of coal mine power supply
Gong-kuang zidonghua, 2018 Main causes of override trip accident of coal mine power supply system were analyzed, which included short circuit, leakage, voltage fluctuation, switch operation rejection, etc. Both advantages and disadvantages of existing anti-override trip methods of
ZHANG Wenrui
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Analysis of anti-override trip program for underground power supply system
Gong-kuang zidonghua, 2015 Anti-override trip program for multi-level short line power supply system and its protective action principle were introduced combined transform instance of anti-override trip system of Juji Coal Mine. The program first uses fiber differential protection
LUAN Yongchun, CHEN Kunpeng
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Meikuang AnquanThe research on leakage and anti-tripping technology of coal mine power supply system is carried out, involving two parts: high voltage power supply system and low voltage power supply system.
Jianwen ZHAO, Fuyang ZENG, Yuyang ZHAO
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An Anti-Override Trip System Based on Principle of Zone Protectio
Gong-kuang zidonghua, 2012 The paper introduced an anti-override trip system based on principle of zone protection, described basic idea and working process of zone protection technology and generating and control logic of blocking signal in details, and analyzed an example of ...
ZHAO Fu-yu
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Protection technology of coal mine power based on GOOSE network with information sharing
Gong-kuang zidonghua, 2015 For problems of override trip in short-circuit fault and fault line selection in single-phase earth fault of coal mine power system, a protection technology of coal mine power based on GOOSE network with information sharing was proposed.
YAO Fuqiang, BAI Meng, ZOU Wenbing
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Gong-kuang zidonghua, 2018 Status of microcomputer protection device for mine-used high-voltage explosion-proof switch was introduced from aspects of hardware structure and basic functions.
LU Donggui, RONG Xiang, ZENG Ke
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New technologies and new equipments of coal mine monitoring
Gong-kuang zidonghua, 2015 The paper analyzed the national coal production，the total number of accidents, the death rate per million tons and the changes of serious accidents. On average per year, the coal production had increased by 194 million tons, the number of accidents had ...
SUN Jiping
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Charlotte Pommer: Resistance fighter and female pioneer of German anatomy
Anatomical Sciences Education, EarlyView.Abstract This article examines the biography and unique case of Charlotte Pommer (1914–2004), the only anatomist documented to have left the field during the Nazi period after encountering the regime's victims on the dissection table. While she is known for her resistance activities, newly presented documentation reveals her role as the provisional ...
Tim S. Goldmann
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Journal of Pediatric Gastroenterology and Nutrition, EarlyView.Abstract Infectious diseases remain a leading cause of morbidity and mortality among pediatric transplant recipients, despite significant advances in transplantation management. Vaccination is the most effective strategy to prevent infections; however, its efficacy is hindered in solid organ transplant (SOT) and hematopoietic stem cell transplant (HSCT)
Valeria Casotti +35 more
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History, EarlyView.Abstract Participants in Russia's 1825 Decembrist uprising against the Tsarist regime were, quite literally, a case study in French cultural influence upon Russia. This is particularly true as it relates to Russia's emotional cultures. Although this has not, traditionally, been the primary focus of historical analysis of this event (in Soviet or ...
ADAM COKER
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