Sp Powergrid Case Study

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Efforts and Strategies SP PowerGrid, a member of Singapore Power Group, manages Singapore’s electricity transmission and distribution networks. The highly efficient and reliable electricity supplied to residential, commercial and industrial customers is achieved due to its strategic use of cutting-edge technology, which contains state-of-the-art installed equipment and condition monitoring system, as well as its quality investment and processes in staff expertise and network infrastructure. • Condition and Power Quality Monitoring System SP PowerGrid has put tremendous effort in the condition and quality monitoring which equipped system capabilities to detect and dislodge the incipient faults within the electricity network. And those network…show more content…
Power distribution will remain uninterrupted when a power cable within a closed loop is faulty. Data acquisition and remote control would be performing as per normal. This has greatly reduced the number of power interruptions to our customers, thus improving network performance and reliability. A technological showcase, Distribution Control Centre (DCC) is equipped with state-of-the-art Supervisory Control and Data Acquisition (SCADA) facilities which serves a vital role in ensuring reliable and quality power through the monitoring and control of the 22kV and part of the 6.6kV distribution network in Singapore. • 400kV Transmission Network To meet future power supply expansion and constant demand, a major network, 400kV transmission network is being built up. It enhances fault-handling capabilities, provides economic transmission of electricity, and better quality supply to customers. With the installation of 400kV network, 230kV network would be partitioned into the East, South, West, North and Central Blocks. This could effectively minimize the frequency and degree of voltage dips.…show more content…
Voltage dip is a sudden reduction of the supply voltage to a value between 1% and 90% of the declared voltage. The duration of voltage dip is ranging from 10 milliseconds to 1 minute. The system dip performance is expressed in terms of an index called the System Average RMS Frequency Index, or SARFI in short. SARFIX is the number of dips per year a customer on the average would have experienced, with voltage is less than X percent of the nominal voltage. Singapore 22kV distribution systems is of SARFI90 = 8.5, in contrast, USA has a figure of 49.7 and 34.6 for cable systems in

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