| Abstract |
Static VAr Compensators (SVC) have been successfully used for many years to improve the operation of high-voltage transmission networks under severe conditions. The main applications are fast voltage control and damping of power oscillations to allow enhanced
power transfer thus making better use of the power system. Fast implementation of the Jember
SVC (Indonesia) was required to ensure safe system operation within shortest time. To achieve the short lead time of only 12 months a novel SVC design was needed. The novel SVC design is based on containerization to the largest extend possible. The thyristor valves, their cooling equipment, the SVC controls and protection as well as AC and DC distribution are included in the container. Using out-door valves in an SVC application required careful
design. The special ambient conditions of the tropical site had to be taken into account. The containerized design allows for prefabrication, pre-installation and pre-commissioning of the SVC system at the manufacturer's workshop and reducing installation and commissioning time at site. This technique opens the road for transportable SVCs which may be easily and economically relocatable. This feature offers a new flexibility for rapidly growing countries with increasing power demands or in countries with suddenly changing system operation
philosophy. In the past it frequently used to be necessary to install an extra SVC. With the new container-type design of SVC this, in many, instances, is no longer necessary. |
