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13 Results for the search " overvoltage":

Author: thpapad
Type: Document
Downloaded: 59 times
Date: 2017-11-03
Rating: * 0 vote(s)
0/10


INDUCED VOLTAGES AND CURRENTS: OVERVIEW AND EVALUATION OF SIMULATION MODELS AND METHODOLOGIES


Description:
In this paper induced voltages and currents caused by underground cables are calculated in cable sheaths and nearby metallic pipelines. The performance of several simulation methods and models are inv... see more

Tag(s): induced voltages
Author: h.gras
Type: Model
Downloaded: 26 times
Date: 2017-09-26
Rating: * 0 vote(s)
0/10


LVRT OVRT function


Description:
This device is an OVRT LVRT protection device.
The user enters the curves points.
It is assumed that the curve is horizontal between two points.

Tag(s): LVRT, OVRT, ride, through, FRT, undervoltage, overvoltage
Author: n.sene
Type: Publication
Downloaded: 266 times
Date: 2015-04-02
Rating: * 1 vote(s)
5/10


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 more

Tag(s): distribution network; surge arresters; lightning protection.
Author: n.sene
Type: Publication
Downloaded: 266 times
Date: 2015-04-02
Rating: * 0 vote(s)
0/10


Indirect-Lightning Performance of Overhead Distribution Networks With Complex Topology


Description:
The paper deals with the evaluation of the indirect-lightning performance of overhead distribution networks. The novelty of this contribution is that it takes into account the inherent complexity of d... see more

Tag(s): LIOV-EMTP, lightning-induced overvoltages, lightning performance, power quality, distribution systems, overhead power lines.
Author: n.sene
Type: Publication
Downloaded: 277 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


On the Mitigation Effect of Surge Arresters on the Lightning Performance of Overhead Distribution Lines


Description:
For the accurate statistical assessment of the lightning performance of distribution lines one needs to
take into account the presence of protection devices such as surge arresters and shielding ... see more

Tag(s): Lightning statistics, induced overvoltages, lightning performance of distribution lines, surge arresters, shielding wires groundings, Monte Carlo method.
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


AN ADVANCED INTERFACE BETWEEN THE LIOV CODE AND THE EMTP-RV


Description:
Accurate evaluation of the response of overhead distribution lines to lightning electromagnetic pulse (LEMP) represents an important aspects in insulation coordination of distribution network. The imp... see more

Tag(s): LIOV, EMTP-RV, LEMP
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 1 vote(s)
5/10


Correlation of lightning events and faults in distribution power networks


Description:
The paper deals with the analysis of the possible correlation between cloud-to-ground lightning discharges and relay operations inferred by using the experimental data obtained means of a measurement ... see more

Tag(s): Lightning protection, lightning-to-fault correlation, lightning location systems, lightning performance of distribution lines, induced overvoltages, a-periodic voltage transient measurement, EMTP.
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


Lightning-Induced Overvoltages Transferred Through Distribution Power Transformers


Description:
This paper deals with the calculation of lightning induced overvoltages on medium-voltage (MV) and low-voltage (LV) distribution networks taking into account the presence of MV–LV distribution trans... see more

Tag(s): Lightning, distribution transformers, overvolatges
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


Interaction Between Grounding Systems and Nearby Lightning for the Calculation of Overvoltages in Overhead Distribution Lines


Description:
The aim of the paper is to analyze overvoltages in overhead distribution lines induced by nearby lightning return stroke currents taking into account also the conductive coupling between the lightning... see more

Tag(s): lightning induced overvoltages, grounding systems, overhead distribution lines, lightning protection.
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


Protection Systems Against Lightning-Originated Overvoltages in Resonant Grounded Power Distribution Systems


Description:
A joint research project between AES Sul, the Federal University of Itajubá and the University of Bologna aims at defining the required protections against lightning-originated overvoltages in a reso... see more

Tag(s): Lightning protection, power distribution networks, induced overvoltages.
Author: n.sene
Type: Publication
Downloaded: 275 times
Date: 2015-04-01
Rating: * 0 vote(s)
0/10


Assessment of the Lightning Performance of Compact Overhead Distribution Lines


Description:
The assessment of the lightning performance of a compact configuration of MV overhead lines that is expected to be adopted in the near future by an electricity distribution company in a Brazilian regi... see more

Tag(s): Lightning protection, Overhead distribution lines, Induced overvoltages, Electromagnetic transients.
Author: AdminEMTP-RV
Type: Model
Downloaded: 155 times
Date: 2012-06-18
Rating: * 0 vote(s)
0/10


Ferro_hyst_Zno


Description:
Simple ferroresonance case. In this case the switching of a part of the network comprised of a cable connected to a no-load transformer is carried out. A pole of the breaker fails to open and an impor... see more

Tag(s): Protection
Author: AdminEMTP-RV
Type: Document
Downloaded: 233 times
Date: 2012-06-18
Rating: * 0 vote(s)
0/10


Presentation of an approach based on EMTP for the calculation of lightning induced overvoltages


Description:
Authors:
A. Xémard, P. Baraton, B. Bressac, N. Qako, J. Mahseredjian, G. Simard, J. Ribeiro, R. Tarafi, A. Zeddam.

Abstract:
LIPS (Lightning Impact on Power Systems) is a toolbo... see more

Tag(s):