
37-6 Power Electronics and Motor Drives
It can be seen from Figure 37.3 that the SVC consists of two major parts that eectively control the
injected (positive or negative) reactive power (Q). ey are the thyristor-switched capacitor (TSC) and the
TCR. Additionally, an integral part of an SVC may be a transformer if it is connected to a high-voltage
bus. e SVC can be connected directly to the medium-voltage bus without a transformer. Finally, an SVC
may, typically, contain a harmonic lter to ensure that there is no injection of unacceptably high harmon-
ics in the network resulting from switching operation of thyristors. e coordinated sw