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ABB RELION REX640 - Page 459

ABB RELION REX640
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Figure 257: Definition of the relay characteristic angle, RCA=+60 degrees in a solidly
earthed network
Example 3
The "Phase angle" mode is selected, isolated network (φRCA = -90 deg)
=>
Characteristic angle
= -90 deg
1MRS759142 F
Protection functions
REX640
Technical Manual
459

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