Phase-Shifting Transformer (PST)
TSEA Phase-Shifting Transformers are designed for active power flow control in transmission systems.
The Phase-Shifting Transformer (PST) enables controlled adjustment of the phase angle between voltages, allowing operators to direct active power flow across transmission corridors.
Engineered in-house and configured on a project-specific basis, each unit is defined according to short-circuit levels, operating conditions, and system constraints.
Role in Power Flow Control
The PST supports:
- Controlled redirection of active power flow
- Reduction of line overloading
- Increased transmission capacity without immediate infrastructure expansion
- Greater operational flexibility in regional and cross-border interconnections
Its application contributes to system stability and optimized utilization of existing transmission networks, particularly in complex grid topologies.
Operating Principle
The transformer operates by modifying the phase angle between voltages, creating an angular difference that directly influences active power flow.
By adjusting this phase shift, operators can redistribute load between parallel lines and interconnected corridors, supporting technical network management.
Technical Differentiators
- Project-specific engineering aligned with system requirements
- In-house design and technical validation
- Compliance with IEC, IEEE, ABNT, and applicable regulatory standards
- Engineering-led technical support from specification through operation
