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Possible Relaying Schemes

Differential General Electric TTS Schweitzer 387 Distance General Electric - D60 Schweitzer 321. Overcurrent General Electric MDP Schweitzer 387 Directional General Electric ALPS Schweitzer 321. Possible Relaying Schemes. Caleb Emmes Thomas Carpenter Steve Stec Jason Sundquist

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Possible Relaying Schemes

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  1. Differential General Electric TTS Schweitzer 387 Distance General Electric - D60 Schweitzer 321 Overcurrent General Electric MDP Schweitzer 387 Directional General Electric ALPS Schweitzer 321 Possible Relaying Schemes

  2. Caleb Emmes Thomas Carpenter Steve Stec Jason Sundquist Tim Grunlund Kevin Vicklund Faculty Dr. Bruce Mork Consumers Energy John Zipp John Larson Rich Cottrell Design Team 15Team Members Advisors

  3. Project Definition • Design an economic and efficient relay protection scheme for a 345/138 kV 300/400/500 MVA transformer and surrounding transmission lines.

  4. Microprocessor Relays • There are several brands of relays which may be used to protect the power system. Microprocessor relays are designed to monitor several electrical inputs simultaneously and decide whether to send a “trip” signal to active breakers or reclosers.. • There are many microprocessor manufacturers... • Schweitzer • General Electric • ABB • Basler

  5. Voltage and Current Transformers • Used to breakdown voltages and currents that the relays are designed to operate with

  6. Transformer Relay Protection Sponsored By: Consumer’s Energy

  7. Computer (CAPE) Fault Simulation Using the computer to simulate faults within our system and using this data to apply our relay settings.

  8. Project Motivation Protection Against Overheating Low oil levels Sudden pressure changes Overcurrent Faults on the surrounding lines Transformer internal faults Low nitrogen pressure Transformer Specifications 300/400/500 MVA 345/138 kV - 13.8 kV tertiary Wye-primary and secondary Delta-tertiary

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