Static exciters

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solution consists fully static excitation sys tem which comprises an excitation power transformer power converter controls protections static circuit breaker excitation systems connected to generator terminals startup excitation from plant dc batteries all generators are subjected to standard program tests

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maintain generator voltage constant during no load operation station servicing large generators need fastresponse excitation system capable adapting the airgap flux rapidly to load conditions static excitation units are particularly suited to the purpose material acceptance manufacturing the following

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windings direct cooled rotor windings hydrogen is used as coolant fluid stator core is direct cooled hydrogen frequency speed power rated voltage power range hz rpm factor kv mva 9632 protection degree 9632 excitation 9632 hydrogen pressure thermal insulation class terminal location installation im1105 im

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meet prime mover requirements air cooled turbogenerators general characteristics im7305 im7315 im7316 ic 9 a1 w7 ic 8 a1 w7 bl j rvv ip 54 iec 600345 static standard brushless as special application f thermally loaded only to class b above 3 3 below connection to the bus duct the foundation the lower

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suspension this makes these generators particularly suited to vari able load operation frequent starting stopping the rotor body is single heattreated forging high strength high magnetic permeability the coupling flanges each end to the turbine to the exciter slip ring shaft respectively are integral parts

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both fully static standard brushless excitation arrangements are available the fully static excitation system comprises an excitation power transformer power converter controls protections static circuit breaker the brushless excitation system comprises an ac main exciter rotating rectifier brushless

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all the generators are custom built type it finds application various industries like steel cement fertilizer chemical sugar textile float glass etc also captive power plants using diesel engines steam turbines gas turbines hydro turbines etc the generators offered are selfexcited selfregulating brushless static

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cylindrical rotor constructions the rotor core consists sheet steel stampings hydraulically pressed keyed shrunk the shaft b b automatic voltage regulator the electronic automatic voltage regulator is static compact panelmounting unit to control the excitation an exciter which turn provides the field current

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type cooling overload duration frame size efficiency rated pf insulation class type insulation type coupling type bearing lubrication type excitation type ct 1 mva to 70 mva 400 to 15000 volts 50 hz to 200 hz 2 to 30 pole 08 to 1 12 to 32 times 045 to 12 20 to 50 upto 4000 meter horizontal vertical

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maquetacion 1 tablemain trrow tdcell divblock divparagraph font0 font 1000pt arial sansserif font1 font 1800pt arial sansserif brushless exciter the brush less excitation system comprises rotating armature threephase ac generator sixelement diode bridge mounted the main generator shaft usually

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due to the use lowloss stamping materials optimum windage friction losses effective cooling circuit to attain these values different computer aided analysis are carried out sustained short circuit current jl ii the generators its excitation systems are designed to supply sustained shortcircuit current

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of the stator winding cooling water is effected by an ion filter. Excitation system BRUSH combined cooled turbogenerators are fitted either with a static excitation system or a shaft-mounted a.c. exciter with a static thyristor excitation system. In the static excitation system, power is taken

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rev/min for 50Hz operation 3600 rev/min for 60Hz operation Excitation: Static or shaft-mounted a.c. exciter Drive: Single end Output range: 250 to 1,100MVA - also capable of synchronous Cooling: Closed hydrogen and water circuits, water cooled Experience compensator operation. BRUSH combined cooled

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, with either brushless or static excitation systems. It offers easy connection to any analogue or digital AVR that has the capability to accept a bipolar DC signal from a PSS. It is also possible to transfer the bias signal of the PSS to an AVR via a CAN-bus interface. The user friendly, password protected