Technical Presentations

Access to EMTP user presentations, webinars, and slide deck presentations.

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31 presentations for overvoltage:


Lightning Performance Improvement of a 9 MW Photovoltaic Power Plant Connected to a 23 kV Distribution Network

Author(s): Luis Rodriguez
Type:Technical Presentation
Downloaded: 0
Date: 2023-04-01

Rating:
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Lightning Performance Improvement of a 9 MW Photovoltaic Power Plant Connected to a 23 kV Distribution Network


Abstract
Lightning is one of the main electric hazards a photovoltaic is subjected to. This is due to the large collection area of the plant itself and to the incoming electric lines connected to the plant. Th... see more

Tag(s): Lightning Photovoltaic, Overvoltage Protection, Step-Up Transformer, Simulation

Ferroresonance Phenomena for Voltage Transformer failure – Simulation & Analysis using EMTP and Mitigation Technique

Author(s): Neerajchandra Patel
Type:Technical Presentation
Downloaded: 8
Date: 2022-09-01

Rating:
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Ferroresonance Phenomena for Voltage Transformer failure – Simulation & Analysis using EMTP and Mitigation Technique


Abstract
Ferroresonance is an oscillating phenomenon between a non-linear inductance and a capacitor that can results in highly distorted over voltages and overcurrent. Ferroresonance phenomenon occurs when a ... see more

Tag(s): Ferroresonance, Transformers, Low-Frequency Transients, Overvoltage, Non-Linear Element

Insulation coordination study of 220 kV transmission line for reliability improvement against lightning-induced overvoltages

Author(s): Jegadeesh Kumar
Type:Technical Presentation
Downloaded: 12
Date: 2022-09-01

Rating:
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Insulation coordination study of 220 kV transmission line for reliability improvement against lightning-induced overvoltages


Abstract
This presentation shows a detailed insulation coordination verification using EMTP. It includes an accurate representation of transmission line components considering actual site data such as conducto... see more

Tag(s): Insulation Coordination, Lightning Strike, LIOV, Line Surge Arresters, Back-Flashover

LEMP and Ground Conductivity impact on the Direct Lightning Performance of a Medium-Voltage Line

Author(s): Fabio Tossani, Carlo Alberto Nucci
Type:Technical Presentation
Downloaded: 5
Date: 2022-09-01

Rating:
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LEMP and Ground Conductivity impact on the Direct Lightning Performance of a Medium-Voltage Line


Abstract
As part of this presentation, calculations of direct lightning overvoltages are analyzed in a medium-voltage line of such type, equipped with a multi-point grounded shield wire over lossy soil, taking... see more

Tag(s): Lightning Electromagnetic Pulse, Ground Conditivity, Shielding Failure, Back-Flashover, LIOV

Capacitor energization, power system conversion, and load flow studies in EMTP

Author(s): Sam Maleki
Type:PDF Presentation
Downloaded: 18
Date: 2022-07-21

Rating:
* 2 vote(s)

Capacitor energization, power system conversion, and load flow studies in EMTP


Abstract
The addition of capacitor banks to the system may result in the frequency shift of the resonance modes in the system. This change may result in undesired interaction of the system with other elements ... see more

Tag(s): capacitor switching, overvoltage, inrush current, PSS/E import tool, frequency scan, statistical analysis

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