16
CURRENT AND VOLTAGE INSTRUMENT TRANSFORMERS
INSTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE
Appendix 3
Damping ferroresonance for voltage transformer type range TJ
Technical background
ated with the excitation of one or more saturable inductors
The saturable inductor is usually present in the form of an in
earthed network is one of the most common ferroresonance
There is an additional factor that can in some cases reduce
or totally eliminate the risk for ferroresonance and it is
Recommendation
age factor if the requirements for the secondary winding are
Voltage of residual
winding
Value of Rdamp Power Dissipation
Ω
Ω
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