Siemens siprotec SJ62 User Manual page 26

Power Supply
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
The before-mentioned function elements and their voltage levels are supplied with
power by a power supplying unit (Vaux or PS). Voltage dips may occur if the voltage
supply system (substation battery) becomes short-circuited. Usually, they are bridged
by a capacitor (see also Technical Data).
1.1 Overall Operation
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