Functions
This chapter describes the individual functions of the SIPROTEC 4 device 7VK61. It shows the setting possibili-
ties for each function in maximum configuration. Guidelines for establishing setting values and, where
required, formulae are given.
Based on the following information, it can also be determined which of the provided functions should be
used.
2.1 General 26
2.2 Automatic reclosure function (optional) 44
2.3 Overcurrent protection (optional) 69
2.4 Synchronism and voltage check (optional) 83
2.5 Under and over-voltage protection (optional) 97
2.6 Circuit breaker failure protection (optional) 115
2.7 Monitoring Functions 131
2.8 Function Control and Circuit Breaker Test 149
2.9 Auxiliary Functions 161
2.10 Command Processing 169
2
SIPROTEC 4, 7VK61, Manual 25
C53000-G1176-C159-5, Edition 05.2018
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