Automation in 24 kV (MV) overhead line network

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Automation in 24 kV (MV) overhead line network

• This means
• increased supply quality and reduced costs for
  the customers,
• reduced compensation costs for the utilities.
• Why focus on MV overhead line network?

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Investments and reliability of electricity supply
system
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Example of MV-network configuration
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Interruption times with and without automation
Cost savings for automation will depend on the
CENS-rates and customergroups. (CENS- Cost of
Energy not Supplied)
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The Automation-system should

• Save costs
• Be independent of communication
• Be a simple product with few variants
• Use standard industrial components
• with long life
• Take care of radial
• and meshed network

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Example of system - SiMAGIK
Substation-busbar
SIMATIC S7-200
Circuit-breaker
IEC-60870-5-101
Discon-nector
MASTER
SLAVE
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Automation in MV overhead line network

• Conclusion
• Considerably reduced interruption times during
  permanent faults
• Systems are on the marked (e.g SiMAGIK since
  1987) and have a lot of references
• Profitable investment
• CENS has increased the interest and reduced the
  pay back time.