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Archive: Category «Power Substation»

Power Substation

Switching Impulse Test of the Transformer

The switching impulse test is applied to confirm the withstand of the transformer’s insulation against excessive voltages occurring during switching. During the switching impulse voltage test, the insulation between windings… Read more

Oct 11, 2012 | By Edvard Csanyi

Switching Impulse Test of the Transformer
Power Substation

Designing of HV Power Substation and Layout

Introduction Earthing and Bonding Substation Earthing Calculation Methodology (Earthing Materials) Layout of Substation Different Layouts for Substations (single busbar, mesh, 1 1/2 cb) Principle of Substation Layouts (spatial separation, maintenance zones) Components of… Read more

Oct 01, 2012 | By sprabakar22

Designing of High Voltage Power Substation and Layout
Power Substation

Transformers Connected Directly to Generators

Power transformers connected directly to generators can experience excitation and short-circuit conditions beyond the requirements defined by ANSI/IEEE standards. Special design considerations may be necessary to ensure that a power transformer… Read more

Sep 01, 2012 | By Edvard Csanyi

Generator transformer
Energy and Power

Site Conditions Impact on Caterpillar Genset Ratings

An engine rating is primarily limited by structural and thermal limits. These limits include maximum cylinder pressure during combustion, turbocharger speed, exhaust gas temperature and in natural gas engines, fuel type. Where an… Read more

Aug 17, 2012 | By Edvard Csanyi

Site Conditions Impact on Genset Ratings - Caterpillar
Energy and Power

Bus Design In Aboveground Substations

Substations can be constructed partly or entirely within aboveground or belowground enclosures. However, cost is high and complexity is increased by fire-protection and heat-removal needs. The following discussion deals with… Read more

Jul 21, 2012 | By Edvard Csanyi

Gas insulated switchgear (GIS) - Siemens
Medium Voltage

Field Inspection of New Medium-Voltage Switchgear

Step Description of what you should do 1.1 Check switchgear assembly for alignment, levelness, and tightness of all bolting. 1.2 Check all equipment for the removal of blocking, supports, temporary… Read more

Jul 16, 2012 | By Edvard Csanyi

DNF7 40.5kV Medium-voltage switchgear field inspection (In Schneider Electric factory)
Power Substation

Typical noise levels in power substation

Equipment noise levels may be obtained from manufacturers, equipment tendering documents, or test results. The noise level of a substation power transformer is a function of the MVA and BIL… Read more

Jul 05, 2012 | By Edvard Csanyi

Typical noise levels in power substation
Low Voltage

Assemblies of switchgear and control panels (3)

Continued from 2nd part of article: Assemblies of switchgear and control panels (part 2) Now coverage of distribution panels and switchboards will be presented including molded case circuit breakers (MCCB), safety… Read more

Jun 30, 2012 | By Edvard Csanyi

Assemblies of switchgear and control panels (3)
Low Voltage

Assemblies of switchgear and control panels (2)

Continued from 1st part of article: Assemblies of switchgear and control panels (part 1) Other components that are needed for the proper operation of the switchgear or control panel but not necessarily… Read more

Jun 29, 2012 | By Edvard Csanyi

Assemblies of switchgear and control panels (2)
Low Voltage

Assemblies of switchgear and control panels

Switchgear and control panels are found in power generating stations, transformer stations, distribution substations, commercial and institutional buildings, industrial plants and factories, refineries, paper mills, metal smelters and any other… Read more

Jun 28, 2012 | By Edvard Csanyi

Assemblies of switchgear and control panels
Energy and Power

Substation Switching Schemes

This technical article is intended to provide description and comparison of single line options for a DESN substation. The goal is to provide an analytical comparison for all options so… Read more

Jun 26, 2012 | By Edvard Csanyi

Switching Scheme Of Substation
Energy and Power

Commissioning of Electrical Equipment

To verify system condition after has been energized with rated system (service) voltage for which it is designed. Also to ensure the protection, metering system for correct directionality. Multimeter Phase… Read more

Jun 25, 2012 | By Edvard Csanyi

Commissioning of Electrical Equipment (on photo OKKEN Low Voltage Switchgear - Schneider Electric)
Power Substation

Transformer Connection Star-Star

The windings of three phase transformers may be connected in by Y or Δ in the same manner as for three single phase transformer. Since the secondary’s may be connected either… Read more

May 23, 2012 | By jiguparmar

Dry type cast resin transformer


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