Post on 29-May-2018
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Power Generation 1
Kodierung
24.01.2006
Mapna 22DTOperator Trainingon Static Excitation Equipment
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 2
Basics of Static Excitation Equipment
Why do we need excitation systems?
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 3
Basics of Static Excitation Equipment
Some historic steps towards synchronous generators
1832 Construction of the first electrical generatorby Hyppolite Pixii utilising the induction principle withsteel magnets
Supply of arc lamps
Supply of galvano-technical systems
No transportation of electrical energy atthat time
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 4
Basics of Static Excitation Equipment
Some historic steps towards synchronous generators
1867 Presentation of the first self-excited electrical machine by Werner von Siemens at the
Paris World Exhibition
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 5
Basics of Static Excitation Equipment
Some historic steps towards synchronous generators
~ 1880 Construction of the first centralized power units in Europe for the supply ofelectrical lamps
1885 Commissioning ofthe first German powerstation in Berlin (supply ofconsumers within area of
800 m around it)
1887 Construction of the first 3 phasegenerator by A. Haselwander
1891 First 3 phase power transmission frompower station Lauffen to the Electro-technical
Exhibition in Frankfurt / M. (175 km)
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 6
Basics of Static Excitation Equipment
Some historic steps towards synchronous generators
20th century: Further improvement of power generation and distribution
1982 Commissioning of the worlds biggest single shaft turbo-set of the NPP Isar2(Landshut, Germany)
Isar2, rated data of the generator:n = 1500 min-1S = 1640 MVAU = 27 kVI = 35 kA
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 7
Basics of Static Excitation Equipment
For the induction of a 3 phase voltage in asynchronous machine .
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 8
Basics of Static Excitation Equipment
For the induction of a 3 phase voltage in asynchronous machine a rotating direct magnetic fieldis required
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 9
Basics of Static Excitation Equipment
Rectifiers are used to make D.C. for the rotor field.Early rectifiers were mercury vapour rectifiers.
Input: 3AC / 220 Volt / 75 Amp. / 50 HzOutput: DC 100/140 Volt / 150 AmpereOutput: DC 140/165 Volt / 65 Ampere
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 10
Basics of Static Excitation Equipment
Circuit diagram of a mercury vapour rectifier:
3 phase AC input
DC output
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 11
Basics of Static Excitation Equipment
Modern excitation systems are designed
as brushless excitation
systems
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 12
Basics of Static Excitation Equipment
or
as static excitation systems
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Operator Training on Static Excitation Equipment24.01.2006 Power Generation 13
Basics of Static Excitation Equipment
Questions for design:Rating of
excitation
transformer
Rating ofexcitationequipment
Parameters andfeatures of controller