Fault Current Distribution and Pole Earth Potential Rise (EPR) Under Substation Fault
-
M. Nnassereddine
,
J. Rizk
Abstract
New high-voltage (HV) substations are fed by transmission lines. The position of these lines necessitates earthing design to ensure safety compliance of the system. Conductive structures such as steel or concrete poles are widely used in HV transmission mains. The earth potential rise (EPR) generated by a fault at the substation could result in an unsafe condition. This article discusses EPR based on substation fault. The pole EPR assessment under substation fault is assessed with and without mutual impedance consideration. Split factor determination with and without the mutual impedance of the line is also discussed. Furthermore, a simplified formula to compute the pole grid current under substation fault is included. Also, it includes the introduction of the n factor which determines the number of poles that required earthing assessments under substation fault. A case study is shown.
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©2013 by Walter de Gruyter Berlin / Boston
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Articles in the same Issue
- Masthead
- Masthead
- Research Article
- A Solid-State Fault Current Limiting Device for VSC-HVDC Systems
- Type-1 and Type-2 Fuzzy Logic and Sliding-Mode Based Speed Control of Direct Torque and Flux Control Induction Motor Drives – A Comparative Study
- Impact Assessment of V2G on the Power Loss of Unbalanced Radial Distribution Network
- Optimal Operation Method of Smart House by Controllable Loads based on Smart Grid Topology
- Modelling Framework and the Quantitative Analysis of Distributed Energy Resources in Future Distribution Networks
- Anti-islanding Protection of Distributed Generation Using Rate of Change of Impedance
- Impact of V2G on Distribution Feeder: A Power Loss Reduction Approach
- Voltage THD Improvement for an Outer Rotor Permanent Magnet Synchronous Machine
- Fault Location Methods for Ungrounded Distribution Systems Using Local Measurements
- Decoupled Control Strategy of Grid Interactive Inverter System with Optimal LCL Filter Design
- PSS with SVC Damping Controllers Coordinated Design and Real-Time Implementation in Multi-Machine Power System Using Advanced Adaptive PSO
- Fault Current Distribution and Pole Earth Potential Rise (EPR) Under Substation Fault
- Review
- A Statistical Survey of the UK Residential Sector Electrical Loads
