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EATON EDR-3000 Series Distribution Relays
Eaton EDR-3000 Series distribution relays perform multiple protection functions, self-diagnostics and reporting for transformers and distribution lines.
AWorking Mechanism
- Once a fault or abnormal condition is detected, the relay takes action to protect the system by opening circuit breakers or other protective devices.
- This isolates the faulted section of the network and restores power to the unaffected areas.
Features
- Eaton EDR-3000 Series distribution relays have zone selective interlocking that improves coordination and reduces tripping time.
- Their integral test functions reduce maintenance and troubleshooting time.
- They offer semi-flush mounting that goes in the wall partially for easy removal.
Frequently Asked Questions
How to test the protective functions of these EDR-3000 Series distribution relays?
The recommended method for testing the protective functions of these relays is through secondary injection testing. It involves injecting a simulated current or voltage into the relay to simulate a fault condition and testing the relay's response.
What is the difference between instantaneous and time-delayed relays?
Instantaneous relays operate immediately when a fault is detected, while time-delayed relays operate after a specified time delay.
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