489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL 7–1
489 Generator Management Relay
Chapter 7: Testing
Digital Energy
Multilin
Testi ng
7.1 Test Setup
7.1.1 Description
The purpose of this testing description is to demonstrate the procedures necessary to
perform a complete functional test of all the 489 hardware while also testing firmware/
hardware interaction in the process. Since the 489 is packaged in a drawout case, a demo
case (metal carry case in which the 489 may be mounted) may be useful for creating a
portable test set with a wiring harness for all of the inputs and outputs. Testing of the relay
during commissioning using a primary injection test set will ensure that CTs and wiring are
correct and complete.
The 489 tests are listed below. For the following tests refer to Secondary Current Injection
Testing on page 7–3:
1. Output Current Accuracy Test
2. Phase Voltage Input Accuracy Test
3. Ground, Neutral, and Differential Current Accuracy Test
4. Neutral Voltage (Fundamental) Accuracy Test
5. Negative Sequence Current Accuracy Test
6. RTD Accuracy Test
7. Digital Input and Trip Coil Supervision Accuracy Test
8. Analog Input and Outputs Test
9. Output Relay Test
10. Overload Curve Test
11. Power Measurement Test
12. Reactive Power Test
Courtesy of NationalSwitchgear.com
To Next Page
Loading...
Need help?
General