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|a hrv
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| 100 |
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|9 38161
|a Papić, Joško
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| 245 |
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|a Izbor visokonaponskog udarnog generatora za ispitni laboratorij specijalnih transformatora :
|b specijalistički rad /
|c Joško Papić ; [mentor Ivo Uglešić]
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|a Zagreb :
|b J. Papić ; Fakultet elektrotehnike i računarstva,
|c 2016.
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|a v, 122 str. :
|b ilustr. u bojama ;
|c 30 cm +
|e CD
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|a Bibliografija str. 115-116.
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|a Ispitivanje udarnim naponima energetskih transformatora provodi se kako bi se utvrdilo mogu li ti transformatori izdržati prenapone u elektroenergetskom sustavu. S tom svrhom, međunarodna norma IEC 60076-3 propisuje ispitivanja udarnim naponima koja se kao rutinska, tipska ili specijalna provode na transformatorima u ispitnim laboratorijima. Stoga, ispitni laboratoriji moraju biti opremljeni udarnim generatorima i pripadajućom opremom kojom se mogu proizvesti i mjeriti zahtijevani udarni naponi prema navedenoj normi.
U Končar D&ST-u postoje dva udarna generatora kojima se prvenstveno ispituju srednji energetski transformatori, no u planu je i nabava novog udarnog generatora koji bi bio smješten u ispitnom laboratoriju specijalnih transformatora. Taj udarni generator bi se koristio ne samo za ispitivanje specijalnih, već i za ispitivanje distributivnih transformatora. Kako bi se olakšala nabava s tehničke strane, izrađen je model stvarnog udarnog generatora u računalnom programu ATP-EMTP kojime će se moći provjeriti mogućnosti novog udarnog generatora, ali i koji će, u budućnosti, olakšati ispitivanje udarnim naponima.
Ključne riječi
prenapon, atmosferski i sklopni udarni napon, visokonaponski udarni generator, naponsko djelilo, mjerni shunt, digitalni uređaj za analizu impulsa, računalni program ATP-EMTP
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|a High-voltage lightning and switching impulse testing of power transformers is performed in order to verify that transformers can withstand overvoltages in power system. For this purpose, international standard IEC 60076-3 defines impulse tests which are performed as routine, type and special tests on transformers in high-voltage test laboratories. Therefore, test laboratories have to be equipped with high-voltage impulse generators and auxiliary equipment which is capable of producing and measuring of impulse voltages.
In Končar D&ST there are, currently, two high-voltage impulse generators that are mainly used for testing of middle power transformers, but there is, also, a plan to purchase a new high-voltage impulse generator that will be situated in test laboratory of special transformers. This new impulse generator won't be used only for testing of special transformers, but also for testing of distribution transformers. In order to make acquiring of impulse generator from the technical view easier, model of real impulse generator has been made in computer program ATP-EMTP with which it will be possible to check capabilities of new impulse generator and that will also make impulse testing easier in the future.
Keywords
overvoltage, lightning and switching impulse voltage, high-voltage impulse generator, voltage divider, measuring shunt, digital impulse analysing system, computer program ATP-EMTP
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|4 ths
|9 9924
|a Uglešić, Ivo
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| 942 |
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|2 udc
|c S
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|c 47139
|d 47139
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