Digital Substation
Overview
In digital substations, which enable real-time data exchange of voltage, current, and status information among IEDs via SV and GOOSE protocols, there is a growing trend of substations into process and station levels. Interface IEDs, such as SCUs and MUs, traditionally responsible for managing binary and analog data with primary equipment, are now installed directly in the yard. This shift offers multiple benefits, including reduced cabling, lower civil infrastructure costs, simplified installation, and improved safety, especially when using fiber optic technology.
SIFANG digital substation solution provides flexible data acquisition methods—via hardwire, GOOSE, or SV—and supports diverse time synchronization techniques, including SNTP, IRIG-B, and IEEE1588. The solution also includes a comprehensive range of protection relays, BCUs, network analyzer and NDMEs.
Features
Support Different Architecture
- Full digital-full network
- Full digital-SV point to point connection
- Half digital-copper wiring for analog values
- Half digital-integrated station and process bus
Smooth Migration
- Measures to ensure seamless migration from conventional to digital substations, shorten outage duration, and lower digital transformation costs
Smart Mergin Unit
- High Capacity: 32 analog channels, 86 BIs, 55 BOs
- Precision Sync: IEEE1588 or IRIG-B time synchronization
- Standards Compliance: IEC61850-9-2 (SV), IEC61850-8-1 (GOOSE)
Benefits
Cost Saving
Simplify hardwiring to significantly reduce the expense of cables.
Space Saving
Decrease the substation footprint with a more compact control room design.
Engineering Efficiency
Reduce engineering work and associated costs with simplified secondary circuits.
Operation Efficiency
Simplified secondary circuits make it possible to improve operational efficiency.
Operation Safety Enhancement
Enhance workforce safety by replacing most of the copper wirings with fiber-optic cables.
Smart Operation Capability
Increase situational awareness to enhance overall system reliability.
