Incoming Feeder, Medium M01; Features - ABB REX 521 Technical Reference Manual, Standard Configurations

Protection relay
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REX 521
10.2.
10.2.1.
150
Protection Relay
Technical Reference Manual, Standard Configurations

Incoming feeder, Medium M01

Features

This application example describes an incoming feeder to a single busbar including:
• overcurrent protection
• residual voltage protection
The network is either compensated earthed or isolated. The three-phase current
measurement is established with current transformers and the residual voltage is
measured with a set of voltage transformers in an open-delta connection.
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MCS
3I >
50/51
TCS
U >
59N (67N)
0
CBCM
0
CBFP
62
3I~harm
3I
U
0
Application Example 6
REX 521 M01
1MRS 751802-MUM
000
I
R

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