Study on Rail Potential of Metro Traction Power Supply System
نویسندگان
چکیده
منابع مشابه
Controlling Rail Potential on Dc Supplied Rail Traction Systems
Most of the modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In ...
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15 صفحه اولEvaluation of Rail Potential Based on Power Distribution in DC Traction Power Systems
Running rails used as a return conductor and ungrounded scheme have been widely adopted in DC traction power systems. Due to the longitudinal resistance of running rails and insulation resistance of rail-to-ground, there will be a potential rise between running rails and the ground when return current flows through the running rails, which is known as rail potential. At present, abnormal rise o...
متن کاملControlling Rail Potential of DC Supplied Rail Traction Systems
Most modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well-known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In this pa...
متن کاملPower Quality Improvement in Traction Power Supply Networks
AC railway traction loads are usually huge single phase loads. As a result, a significant amount of Negative Sequence Current (NSC) is injected into utility grid. Moreover, harmonics and consumption ofreactive power are further power quality problems that the supply network is encountering. In this paper, acompensation strategy with the aid of Railway Power Conditioner (RPC) is proposed to over...
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ژورنال
عنوان ژورنال: DEStech Transactions on Engineering and Technology Research
سال: 2019
ISSN: 2475-885X
DOI: 10.12783/dtetr/aemce2019/29476