Results 81 to 90 of about 5,269 (164)

Logic controlled solid state switchgear

, 1973
Logic controlled solid state circuit breakers and power transfer switches have been designed and built to demonstrate their use for 270 V dc power systems. This switchgear provides remote operation, automatic current level, and operates several orders of
Buchanan, E., Waddington, D.
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Standardized and non-standardized aging tests for switchgear and switchgear-components under severe climatic conditions

, 2002
In this paper ageing tests focussed on indoor switchgear respective on their core components are described. These tests aim at simulating severe environmental stresses and are recommended to be performed for switchgear which has to operate in a harsh ...
Keim, Sabine, König, Dieter, Kluge, M., Eiselt, M.   +3 more
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Experimental Study of the Behaviour of Ring Main Unit-Type Panels in the Event of Internal Arcing in Different Compartments

Energies
If an R.M.U. (Ring Main Unit) cubicle is installed, operated and maintained in accordance with current standards and the manufacturer’s instructions, the likelihood of internal arcing is reduced, but should not be completely ignored.
Cristian-Eugeniu Sălceanu, Sorin Enache, Cătălin Dobrea, Daniela Iovan, Daniel Ocoleanu, Marcel Nicola, Ștefan Șeitan, Mihai Ionescu   +7 more
doaj   +1 more source

Optimum Methods of Thermal-Fluid Numerical Simulation for Switchgear

IEEE Access, 2019
Thermal-fluid coupled calculation is an effective way to simulate the temperature rise and heat dissipation process of switchgear. But there are still problems such as huge calculation and low accuracy need to be solved.
Jiangjun Ruan, Yongcong Wu, Peng Li, Mingyang Long, Yujia Gong   +4 more
doaj   +1 more source

THE EFFECT OF LIGHTNING ON HIGH VOLTAGE ELECTRICAL SUBSTATIONS’ LOW VOLTAGE SYSTEMS

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016
The article presents the results of studies of the effects of lightning on low voltage systems of high voltage electrical substations with outdoor switchgears of 110 kV.
M. I. Fursanov, P. V. Kriksin
doaj   +1 more source

Mining switchgear

, 2017
Naloga zajema predstavitev stikalnih naprav, uporabljenih v elektroenergetskem omrežju ter stikalnih naprav, uporabljenih v Premogovniku Velenje. V nadaljevanju so podane glavne specifične značilnosti stikalnih naprav, uporabljenih v Premogovniku Velenje.
Jakop, Aleš
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Electric power system switchgear

A room with a switchgear. In an electric power system, switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment.
Smith, W. D.
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Simulation of Internal Arcing in High Voltage Switchgear Based on Fluent

, 2011
Internal arcing faults in the high voltage switchgear may cause serious damage to the equipment and fatal injury to personnel. To simulation the fault arcs based on appropriate calculation methods can not only shorten the development period of arc ...
Wei Wang, Shun Yuan, Feng Li
core   +1 more source

Beryllium in Electrical Switchgear

, 2015
Beryllium is a naturally occurring element with many unique properties and a variety of uses. When combined with other elements, such as copper, specialized alloys may be made that are of particular value for certain applications.
Hokanson, Eric
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Design of a Low Voltage Switchgear Assembly

, 2015
low-voltage switchgear, dimensioning, protection, xSpider, E-confing ...
Halbich, Adam
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