Page 44 - kV-kA ABB_Broschure_Power_Semiconductors_2021_EN

44 PRODUCT CATALOG POWER SEMICONDUCTORS
BCTs
Bi-directionally controlled thyristors
Improved volume consumption and reduced part count for SVC, 4-quadrant DC-drive or soft starter equipment in the magnitude of 25 percent compared with equally rated PCT-solutions are possible with Hitachi ABB Power Grids’ BCTs – without jeopardizing reliability and performance.
Hitachi ABB Power Grids’ innovative bi-directionally controlled thyristor (BCT) features two mono- lithically integrated antiparallel thyristors in a single housing. The two thyristor halves are individually triggered and have a separation region enabling the design of high-voltage devices with the dynamic capability of discrete devices.
The BCT is designed, manufactured and tested using the same philosophy, technology and equipment as the well-established PCT (page 40), thus reaching the same levels of performance and reliability.
A table of replacement of PCTs by BCTs is given
in the BCT application note which can be found at www.hitachiabb-powergrids.com/semiconductors.