Application of Differential Protection to Long Power Cables - Cable modelling and charging current compensation methods

2014 ◽  
Author(s):  
A. Khanna
Keyword(s):  
Differential Protection ◽  
Power Cables ◽  
Current Compensation ◽  
Compensation Methods ◽  
Charging Current

Impacts on the utilization degree of canal water caused by agricultural water reallocation: a case study from China

Water Policy ◽  
2015 ◽  
Vol 17 (5) ◽  
pp. 815-830 ◽  
Author(s):  
Xiaoping Dai ◽  
Yuping Han ◽  
Xiaohong Zhang ◽  
Daoxi Li ◽  
Jing Chen
Keyword(s):  
Water Supply ◽  
Yellow River ◽  
Household Head ◽  
Water Transfer ◽  
Water Diversion ◽  
Agricultural Water ◽  
Canal Water ◽  
Current Compensation ◽  
Compensation Methods ◽  
Agricultural Water Supply

Our study area in the People's Victory Canal Irrigation District (PVCID), which is downstream of the Yellow River in China, has been undergoing agricultural water transfer to the city for municipal uses. Water supply condition data from PVCID are used to analyze the impacts of water reallocation on agricultural water supply quality, and field survey data in PVCID are used to examine the impacts of agricultural water supply quality on the utilization degree of canal water. Several issues on the current compensation methods are also discussed. Results show that the amount of irrigation water and the number of days for irrigation are affected by water reallocation, especially when the amount of water diversion significantly decreases. Regression results show that timeliness and adequacy of canal water are important factors affecting the utilization degree of canal water. Several factors reveal significant association with the utilization degree of canal water, such as the water price of canal water, water fee charge methods, soil texture of the largest cropland, precipitation, and age of farm household head. Current compensation methods can hardly compensate for the decrease in canal water reliability. Some recommendations are put forward to compensate for the adverse effects of agricultural water transfer.

Charging current compensation scheme for differential relay in UHV transmission system

1985 ◽  
Vol 105 (3) ◽  
pp. 36-43
Author(s):  
Chihiro Fukui ◽  
Atsumi Watanabe ◽  
Yoshihiro Sano ◽  
Yukinari Yamakoshi ◽  
Yoshifumi Okura ◽  
...  
Keyword(s):  
Transmission System ◽  
Compensation Scheme ◽  
Current Compensation ◽  
Charging Current

Charging current compensation in semiintegral electroanalysis

1975 ◽  
Vol 47 (4) ◽  
pp. 610-617 ◽  
Author(s):  
Steven C. Lamey ◽  
Roman D. Grypa ◽  
J. T. Maloy
Keyword(s):  
Current Compensation ◽  
Charging Current
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