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Distribution Automation (DA) Distribution Automation (DA) &&

Distribution Management System Distribution Management System (DMS)(DMS)

InitiativesInitiatives

Review Panel Presentation

January 31, 2014

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Monitor and control equipmentinside 15 substations:

Control Breakers Control Transformers Monitor equipment status (breaker opened

or closed) Measure electrical values (line loading) Monitor equipment condition (oil temperature)

Existing AutomationExisting Automation

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Future Distribution Future Distribution Automation (DA)Automation (DA)Control, monitor and automate equipment outside substations on the distribution system:

Improve System Reliability Reduce outage duration Reduce outage frequency

Improve Operational Efficiency

Improve Safety

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What is DA?What is DA? Field systems that:

Monitor equipment Remotely control devices Automatically detect and isolate faults Automatically restore electric service to customers

Software platform for: Demand response Energy delivery optimization Support Electric Vehicles and Solar Technologies Other applications

DA systems will be integrated with DMS to further optimize systems operations

What is DMS?What is DMS?

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Substation with Two FeedersSubstation with Two Feeders

Feeder 1

Feeder 2

Substation

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Existing: Feeder Fault without DAExisting: Feeder Fault without DA

Feeder 1

Feeder 2

Substation

• Breaker at the substation clears the fault

• All customers on the feeder lose power

• Crews need to patrol the entire length of the feeder to locate the fault

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Future: Feeder Fault with DA – Future: Feeder Fault with DA – Fault IsolationFault Isolation

Feeder 1

Feeder 2

Substation

• Breaker at the substation clears the fault

• DA locates the fault and isolates the faulted segment of the feeder

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Future: Feeder Fault with DA – Future: Feeder Fault with DA – Service RestorationService Restoration

Feeder 1

Feeder 2

Substation

• DA reconfigures feeders, closes the breaker and restores power to all unfaulted segments

• Crews can be dispatched directly to the faulted segment

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Implementation PlanImplementation Plan DA initiatives:

Implement 10 distribution systems by 2019 Install switches and communication

equipment Pilot test 2014/2015 Project cost - $6.5M

DMS Initiatives: Complete upgrading EMS in 2017 DMS software implementation in 2019/2020 Integrate with DA systems Estimated project cost - $12M