CR-3 Tap Changer
Role of Tap Changers in Voltage Control
The on-load tap changer is the key component responsible for adjusting the winding ratio of the voltage regulator, enabling output voltage regulation without service interruption. It operates by selecting different winding taps to raise or lower voltage according to network conditions, ensuring values remain within the range established by the electronic controller. The tap changer is motor-driven, moving the selector (moving contacts) to the position determined by the control system, providing automatic and precise response to voltage variations detected in the grid.
Applications in Single-Phase Voltage Regulators
- Power Distribution: urban and rural feeders with significant voltage drop and/or load variation.
- Industrial Facilities: processes requiring voltage stability.
- Oil & Gas: critical systems demanding high service continuity.
Technical Differentiators and Operational Reliability
- Position synchronization between tap changer and TSEA electronic controllers via resistive measurement.
- Mechanical robustness and reliable operation, maintaining switching precision even after long operating cycles.
- Compliance with IEC, IEEE, and ABNT standards, meeting mechanical, thermal, and dielectric requirements.
- Specialized technical support throughout the lifecycle.
- Extended operational life, with up to 1,000,000 operations before major overhaul.
Regulatory Compliance and Integration with TSEA Solutions
Technical Specifications
- Type:
On-load rotary tap changer for single-phase voltage regulators, spring-driven mechanism powered by electric motor - Current Capacity:
Up to 668A - Operation:
On-load, safe and precise - Operation Time per Position:
4 seconds - Operation Time from Neutral to Maximum Position:
64 seconds - Number of operations before first inspection of fixed and moving contacts:
150,000 operations. - Number of operations before major overhaul:
1,000,000 operations - Standards:
IEC 60076-21:2018 / IEEE Std C57.15-2017 / ABNT NBR 11809/91 - Mounting:
Integrated into TSEA voltage regulators
Frequently
Asked Questions
What is the function of the TSEA CR3 Tap Changer?
It enables on-load tap switching in single-phase voltage regulators, ensuring continuous and stable voltage control.
What is the operation time per position?
Each position operates in 4 seconds.
What is the current capacity of the CR3 Tap Changer?
It is designed to operate with currents up to 668A, according to design and testing criteria.
Does the CR3 Tap Changer comply with applicable standards?
Yes, it is designed in compliance with IEC, IEEE, and ABNT standards.
What is the service life of the CR3 Tap Changer?
It is designed for up to 1,000,000 operations before major overhaul. Preventive maintenance cycles outlined in the manual must be followed to ensure this lifespan.
Is the CR3 Tap Changer compatible with other electronic controllers?
Compatibility with third-party controllers must be evaluated case by case. TSEA recommends technical consultation to ensure proper integration.