Cybersecurity Zoning and Conduits for MV Switchgear Automation Networks
A risk-based substation zone-and-conduit design that contains cyber compromise while preserving deterministic protection and essential local control.
Learn Switchgear Editorial Team
Independent editorial team creating practical switchgear, protection, control and testing resources for electrical engineers.
Redundant SCADA Servers, Gateways and Communications: Failover Design and Testing
An end-to-end redundancy guide that proves failure-domain independence, safe command ownership, event continuity, failover and controlled failback.
Protocol Conversion and Data Mapping Without Losing Quality Information
A semantic mapping and fault-injection method that prevents values from appearing healthy after protocol conversion has lost quality, time or control meaning.
RTU and Gateway Selection for Multi-Vendor MV Switchgear Projects
A procurement and acceptance framework for multi-vendor RTUs and gateways covering IEC 61850, IEC 104, DNP3, Modbus, sizing and failover.
Sequence-of-Events Resolution and Time Synchronization for Fault Analysis
A rigorous guide separating timestamp resolution from physical-event accuracy and proving event order, time quality, holdover and fault-record correlation.
SCADA Permissives, Interlocks and Blocking: Where Logic Should Reside
A practical cause-and-effect method for placing MV switchgear logic where speed, safety, availability, failure containment and testability require it.
Local, Remote and Supervisory Control Authority: Safe Mode Selection
A practical authority-state design for MV switchgear that prevents competing commands and safely handles mode changes, stale data, failures and maintenance.
Select-Before-Operate Versus Direct Operate for MV Remote Control
A consequence-based guide to selecting and testing direct or select-before-operate control for breakers, disconnectors, earthing switches and automation.
Building a Complete SCADA Point List and Signal Database for MV Switchgear
A field-by-field design and QA method for an MV switchgear point database that traces physical sources through IEDs, gateways, HMI and control center.
IEC 61850 MMS Reporting for MV Switchgear Monitoring and Control
A complete practical guide to IEC 61850 MMS reporting and control, including report-control ownership, buffer recovery, event storms and end-to-end testing.