Principle and acceptance of electrical interlocking of double bus GIS equipment
Electrical interlocking forms the most basic interlocking relationship within and between compartments through secondary cables and auxiliary contacts,which is one of the important contents of acceptance before the operation of newly-built,reconstructed and expanded substations.Taking the 220 kV double bus connection GIS equipment of a substation as an example,combined with the acceptance experience,analyzes the basic principles and acceptance methods of the electrical interlocking circuits of the line,the high-voltage side of the main transformer,the voltage transformer,the bus coupler and other intervals,providing reference for the substation operation and maintenance personnel to accept the electrical interlocking logic and find faults.
double busGIS equipmentelectrical interlockingsubstation operation and maintenance
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