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Author: h.gras
Type: Model
Downloaded: 215 times
Date: 2020-11-23

IEEE FD ZnO model

Description:
This device automatically adjusts the parameters of the frequency dependent ZnO model (see figure below) as described in IEEE Working Group 3.4.11 on Surge Arrester model.
This model may be used... see more for switching and lightning transient analyses only.
This model may not be used Temporary OverVoltage (TOV) and other low frequency analyses.

Tag(s): surge, arrester, ZnO, IEEE, frequency dependent, IEEE Working Group 3.4.11

Author: h.gras
Type: Example
Downloaded: 616 times
Date: 2016-10-11

Tutorial example on ZnO modelling

Description:
In this example, it is detailed step by step how to built a ZnO surge arrester model following the IEEE working group 3-4-11.
The model is built using different impulse test results.

Tag(s): ZnO, surge, arrester, IEEE, 3-4-11, impulse

Author: h.gras
Type: Example
Downloaded: 680 times
Date: 2015-06-16

Content of the webinar studies from A to Z on lightning strokes

Description:
Designs built or presented during the webinar of the series Studies from A to Z on Lightning stroke analysis.
Models built:
- Metal Oxide surge arrester (IEEE working group 3.4.11)
- To... see morewer model for fast-front transients.
- Footing resistance of towers (with ionization effect)
- air-gap leader (Area Criterion Model and equal area integration (Cigre))
- FD lines
- Substation equipment
- Parametric studies
- Corona

Tag(s): Lightning, stroke, fast-front transient, tower, arrester, cigre, line, substation, parametric, corona, air-gap, leader

Author: n.sene
Type: Publication
Date: 2015-04-02

Indirect Lightning Performance of a Real Distribution Network with focus on Transformer Protection

Description:
The paper applies the Monte Carlo procedure proposed by the Authors to evaluate the indirect lightning performance of a real medium-voltage distribution network, which includes feeders and laterals, p... see moreoles, secondary substations and surge protection devices. Such a procedure allows inferring the amplitude of lightning-induced voltages at any point and any phase of the network. The analysis presented in this paper aims at assessing the expected mean time between failures of each MV/LV transformer caused by indirect lightning strikes.
A heuristic technique has been specifically developed to reduce the computational effort despite the non-linear response of the network enhanced by the presence of surge arresters.

Authors: Alberto Borghetti, Fabio Napolitano, Carlo Alberto Nucci, Fabio Tossani, Gilnei J. G. Dos Santos, Donorvan R. Fagundes, Gustavo P. Lopes, Manuel L. B. Martinez

2014 International Conference on Lightning Protection (ICLP), Shanghai, China

Tag(s): induced voltages; distribution networks; Monte Car lo method; lightning protection; MTBF.

Author: n.sene
Type: Publication
Date: 2015-04-02

Selection of MV/LV Transformers to be Protected by Surge Arresters against Indirect Lightning Overvoltages

Description:
The papers addresses the problem of locating surge protective devices in a medium voltage distribution network by means of an accurate computer model for the calculation of lightning induced overvolta... see moreges and a Monte Carlo statistical procedure. The indirect lightning performance of small network cells of different configuration are evaluated and used as a benchmark for the validation of the surge arrester locations provided by a genetic algorithm procedure. The obtained results appear useful for the lightning protection design of networks
with complex topology.

Authors: Alberto Borghetti, Fabio Napolitano, Carlo Alberto Nucci, Fabio Tossani, Gilnei J. G. Dos Santos, Donorvan R. Fagundes, Gustavo P. Lopes, Manuel L. B. Martinez

2014 International Conference on Lightning Protection (ICLP), Shanghai, China

Tag(s): distribution network; surge arresters; lightning protection.