High-current transformers
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High-current transformers Indoor AKA ALG JK-GCT AKQ (7.2 –36) k

AKA current transformer Type AKA current transformers are usually used in encased ducts, so-called isolated phase bus ducts (IBPs). The CT’s transform high currents up to 50,000 A into standardised, equivalent values for meters, measuring equipment and protection devices. Power stations use IPB ducts between the generator on the one side and the generator transformer and its station-service feeders on the other. AKA current transformers are designed to be installed in these systems. The current transformer is fixed in place inside the casing. The distance between the transformer's internal...

Standard Highest operating voltage Power frequency withstand voltage Primary rated current Rated dynamic current [Idyn] Thermal short-time current rating [lth] Secondary rated current Accuracy classes Max. number of cores Type AKA Max. transformer height

ALG/JK-GCT current transformer Type ALG/JK-GCT current transformers are used for installation on high-current ducts for generators. They transform high currents up to 50,000  into standA ardised, equivalent values for counters, measuring equipment and protection devices. The high currents and short phase distances that generators experience place extreme demands on transformers in terms of temperature and interfering fields. Compensating windings are fitted to achieve the necessary accuracy, with the transformers also being designed to withstand very high temperatures. The ALG transformer...

ALG/JK-GCT current transformer ALG Type Generator-Stromwandler © PFIFFNER Messwandler AG - ISO 16016 beachten Highest operating voltage Power frequency withstand voltage JK-GCT DIN / IEC / IEEE Erstellt / Prepared : Änderungen Das Urheberrecht an diesen Zeichnungen und allen Beilagen die dem Empfänger persönlich anvertraut sind, verbleibt jederzeit bei der Firma PFIFFNER Messwandler AG. Ohne eine schriftliche Genehmigung dieser Firma dürfen sie nicht kopiert und vervielfältigt, auch niemals dritten Personen mitgeteilt oder zugänglich gemacht werden! Primary rated current Rated dynamic...

AKQ current transformer (7.2 –36) kV Type AKQ current transformers are usually used in installations featuring open busbar systems. They transform high currents up to 15,000  into standardised, A equivalent values for meters, measuring equipment and protection devices. Type AKQ current transformers are available for five different voltage levels: 7.2 kV, 12  17.5  24  and 36  Six differkV, kV, kV kV. ent hole diameters – i.e. six different construction sizes – are possible for each voltage level. The active parts are cast in epoxy resin. Depending on the requirements, up to five mutually...

Standard Highest operating voltage Power frequency withstand voltage Lightning surge withstand voltage Primary rated current Secondary rated current Thermal short-time current rating [lth] Rated dynamic current [Idyn] Accuracy classes Max. number of cores Type AKQ Transformer size Internal diameter Sparking distance

Global presence PFIFFNER Messwandler AG 5042 Hirschthal Switzerland PFIFFNER Technologie AG 5042 Hirschthal Switzerland PFIFFNER Systems AG 4303 Kaiseraugst Switzerland PFIFFNER Deutschland GmbH 25524 Itzehoe Germany PFIFFNER Transformatör A.S. 06750 Akyurt /Ankara Turkey PFIFFNER do Brasil Ltda 88307-740 Itajaí Brazil MGC Moser-Glaser AG 4303 Kaiseraugst Switzerland ALPHA Elektrotechnik AG 2560 Nidau Switzerland This document has been drawn up with the utmost care. We cannot, however, guarantee that it is entirely complete, correct or up to date. © Copyright PFIFFNER, subject to change...