Measurement Cubicle, High H06; Features - ABB REX 521 Technical Reference Manual, Standard Configurations

REX 521
11.6.
11.6.1.
194
Protection Relay
Technical Reference Manual, Standard Configurations

Measurement cubicle, High H06

Features

This application example describes a measurement cubicle to a single busbar
including:
• overvoltage protection
• undervoltage protection
• residual voltage protection
• underfrequency protection with two stages
The network is either compensated or isolated. The residual voltage is measured
with a set of voltage transformers in an open-delta connection. Phase-to-phase
voltage measurements are established with voltage transformers.
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Application Example 13
REX 521 H06
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