Interlocking for 380kV GIS Substation: Insights Into CB and Isolator Test and Service Positions
This guide aims to serve as a practical resource for engineers, technicians, and professionals working in substation operations.
Image for illustration purposes.
Interlocking systems are critical to the safe and efficient operation of high-voltage substations,
ensuring proper sequencing of equipment operations and preventing dangerous scenarios such
as simultaneous energization or grounding- This technical article delves into the intricacies of
the 380kV interlocking diagram for Dia C02, specifically Wthin the context of the one-and-a-half
breaker scheme.
The article explores key aspects ot the interlocking system, starting with an overview of the
scheme layout and the role of supporting equipment like busbar earth switches. It provides
detailed insights into circuit breaker and isolator configurations, their operations, and associated
interlocking logic.
A special emphasis is placed on the standard operating practices, maintenance safety
protocols, and the critical role interlocking plays in ensuring system reliability and personnel
safety.
Source: Electrical Engineering Portal
#380kV Interlocking Systems#Circuit Breaker QOI#Electrical Substation Maintenance#high voltage engineering#Isolator Interlocking Operations#Power System Safety#Pre-commissioning Procedures#Service Position vs Test Position#SF6 Gas Pressure Interlocks#Substation operations