Acquiring References - ABB REG670 Commissioning Manual

Section 7
Calibrating injection based 100% stator earth fault protection
7.5
82
Check feedbacks in the Calibration result field to make sure that all tests
have been passed.
12.1. If a failure is indicated during one or more check(s), follow the
instructions/tips provided by the ICT in the Calibration result field.
12.2. If these tips do not solve the issue, then contact ABB Support.
GUID-D024D8B7-45F3-42D1-AAA3-488A2996267B V1 EN-US
Figure 22: ICT calibration tab 4
13. Before proceeding any further make sure that you have removed the short-
circuit that was applied during calibration step 3.
14. To finish the calibration process, select the Submit to Parameter setting
button.
15. In Parameter setting, write the newly acquired parameters to IED.

Acquiring references

To detect different operation conditions of the generator and select proper
impedance reference requires logic outside the injection function. Therefore
changing/switching impedance reference is not described here but in a separate
application note 1MRG005030 Application example for injection based 100%
Stator EF and Sensitive Rotor EF protection.
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
1MRK 502 073-UEN A
IEC11000048-2-en.vsd
GUID-AC1645F9-9B48-4F6A-9D81-BDCB7382533E v2
Commissioning manual