Technical paper

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Showing 1 - 20 of 131 results.
of 7
Document title Document type Document Date Add Download
Advent of fixed type Disconnecting Circuit Breakers in Medium Voltage secondary switchgear: a new arrangement of main circuit functions
NRJED315634EN
The purpose of this paper is to challenge some well-known arrangements of devices like racking trucks, disconnectors,circuit breakers and earthing switches. A new single line diagram will be...
Technical paper 08/07/2015 Add to my Documents
Matpost 2011-Benefits of the functional approach in Standardization activity
NRJED315649EN
Functionnal approach leads to a variety of technical solutions and opens the door to innovation. IEC, main international standardization frame for electrical switchgear, applies such approach based...
Technical paper 22/04/2015 Add to my Documents
CICED 2012-The role of standards as enabler of optimized MV Switchgear design
NRJED315648EN
Electrotechnical switchgear used for network operation has high stakes in term of safety and power availability. For this purpose, it is essential they rely on high level standards such as IEC,...
Technical paper 22/04/2015 Add to my Documents
Matpost 2011-LPCT Allows rationalization of the protection chain
NRJED315647EN
Traditionally the current measurement in the MV systems has been made with Current Transformers (CTs). The use of new technology called Low Power Current Transformer (LPCT) allows an evolution in...
Technical paper 22/04/2015 Add to my Documents
CICED 2014-Is overvoltage protection useful in MV distribution equipment?
NRJED315646EN
Relevancy of overvoltage protection on MV networks is discussed according to the network structure and the switching equipment installed. Over-voltages can be generated by natural phenomena like...
Technical paper 22/04/2015 Add to my Documents
CICED 2014-Time to reconsider VT's implementation for a better reliability
NRJED315645 EN
In the smart grid deployment, more and more voltage transformers (VTs) are used to provide voltage measurements, for example for power measurement. In traditional switchboards, VTs were identified...
Technical paper 22/04/2015 Add to my Documents
ISBN 2008-2. Compliance with insulation coordination
NRJED315642EN
The behaviour under lightning is simulated numerically for vacuum switch-disconnectors (standard deviation StD of 16%) and gas switch-disconnectors (StD of 5%) in a critical case of a MV/LV...
Technical paper 22/04/2015 Add to my Documents
CIGRE 2011 - Recovery and regeneration of SF6 at switchgear end of life is now a mastered
NRJED315644EN
Sulphur Hexafluoride (SF6) gas has been used since approximately 1960 in electrical equipment for energy transmission and distribution at rated voltages above 1000 V. It is recognized as an ideal...
Technical paper 22/04/2015 Add to my Documents
CICED 2008-Impact of Vacuum Switch-disconnectors
NRJED315641EN
Using vacuum technology in 100% of distribution switchgears will increase the number of vacuum interrupters in the network by a factor of 20. Here a statistical analysis is used to evaluate the...
Technical paper 22/04/2015 Add to my Documents
CICED 2008 - Capacitor Bank Switching with Vacuum Circuit Breakers
NRJED315643EN
After interruption of a capacitive current sometimes Non Sustained Disruptive Discharges (NSDD’s) are observed when using vacuum circuit breakers. According to network calculations, NSDD’s...
Technical paper 22/04/2015 Add to my Documents
PCIC 2015- Arc Flash vs arc resistant
NRJED315651EN
"Arc flash" and "arc resistant" terms became common in the industry when speaking about the possible consequences of an arcing fault on an electrical installation or within an electrical...
Technical paper 22/04/2015 Add to my Documents
CIRED 2013-Impact of medium voltage switchgear technology on operating modes in the network
NRJED315635EN
The metal enclosed switchgear suitable for installation in MV / LV public distribution substations or private customer substations are key elements to ensure continuity of service in electricity...
Technical paper 22/04/2015 Add to my Documents
Knowing status of an Earthing Switch in MV Switchgear, contact visibility or positive mechanical indication?
NRJED315637EN
Safety of personnel operating or maintaining MV switchgear is crucial. When work needs to be done on an electrical installation, the equipment must be earthed, since earthing is what ensures the...
Technical paper 22/04/2015 Add to my Documents
2SIS technology in MV Switchgear improves harsh environment and drastically reduces internal arc probability (CICED 2014-FP 0314)
NRJED315639EN
For efficient smartgrid deployment, availability of MV networks is of high importance. MV switchgear play a key role for this purpose and more often, harsh environment withstand is required, thus...
Technical paper 16/04/2015 Add to my Documents
OASys DNA and Control Room Management Compliance Statement
OASys-DNA-Compliance
This document describes how OASyS, specifically the current release – Columbia (and earlier releases using the Smart Client Architecture - ezXOS, XE and ADE) helps pipeline operators comply with...
Technical paper 14/04/2015 Add to my Documents
Technical paper 02/03/2015 Add to my Documents
Technical paper 23/03/2015 Add to my Documents
Time to reconsider VT's implementation for a better reliability
NRJED315645EN
In the smart grid deployment, more and more voltage transformers (VTs) are used to provide voltage measurements, for example for power measurement. In traditional switchboards, VTs were...
Technical paper 23/03/2015 Add to my Documents
Technical paper 23/03/2015 Add to my Documents
White Paper_Fast_Load_Shedding
White Paper_Fast_Load_Shedding
White Paper_Fast_Load_Shedding
Technical paper 09/03/2015 Add to my Documents