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Protection of Distribution Networks
What is the take-home?
All the fundamentals you need for transformer and feeder protection are packaged in this course..
The course covers the SR745 Transformer protection SR750/760 Feeder Management Relays.
Protection theory, relay field configuration, field testing and wiring id thoroughly covered. simulation software will activate protective elements, building setting files and field testing.
who should attend:
Plant electrical maintenance personnel who are responsible for the installation, maintenance, testing and repair of GE Multilin SR745 and SR750/760 relays.
Plant electrical engineers responsible for the design of distribution networks.
Recommended prerequisite: Electrical professional credentials
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Recommended duration: 3 days
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Suggested agenda
Day 1:
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SR750/760
Introduction to power generation and distribution
Grounding systems
Introduction to protective relaying
Introduction to protective relaying
Current transformer selection
Hardware overview
SR750/760 Specifications |
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Mechanical installation and wiring
EnerVista SR750/760 Setup Software
- Establishing communication to the relay
- Loading and saving settings files lab
Setpoints
- SR750/760 relay setup
- Logic inputs
- Output relays: trip circuit supervision
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Day 2:
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Protection and fault simulation lab
- Instantaneous Overcurrent
- Timed Overcurrent
- Voltage restraint
- Directional overcurrent
- Under/overvoltage
- Underfrequency
Control
- Setpoint groups
- Underfrequency
Monitoring
- Undervoltage
- Overvoltage
Actual data
- Event recorder and waveform capture
Control
- Setpoint groups
- Underfrequency
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SR745
Basic transformer theory of operation
Percent differential protection element
Instantaneous differential protection
Tap changers
SR745 Specifications
Hardware overview, options and ordering
Mechanical installation and wiring
Establishing communication to the relay with TM PC software
Loading and saving settings files
SR745 setup
- Logic inputs: contact and virtual
- Protective elements
- Outputs: virtual and contact
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Day 3:
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SR745
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Fault simulation investigation tools waveform capture
- Differential element
- Event recorder, trending and waveform capture
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Introduction to FlexLogic
- Gates: AND, NAND, OR, NOR, XOR, NOT
- Virtual inputs
- Contact outputs and virtual outputs
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The SR745 memory map and user memory map
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Data communication LANs
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