CR-3 Tap Changer
Role of Tap Changers in Voltage Control
The on-load tap changer adjusts the regulator winding ratio, enabling voltage regulation without service interruption. By selecting different winding taps, it raises or lowers voltage in response to grid conditions, maintaining values within the range defined by the electronic controller. Motor-driven actuation ensures precise and automatic positioning based on system demand.
Applications in Single-Phase Voltage Regulators
- Power Distribution
Urban and rural feeders with voltage drop or load variation - Industrial Facilities
Operations requiring stable voltage control - Oil & Gas
Systems requiring high service continuity
Technical Differentiators and Operational Reliability
- Position synchronization between tap changer and TSEA electronic controllers via resistive measurement
- Mechanically robust design supporting consistent switching precision over extended operating cycles
- Compliance with IEC, IEEE, and ABNT standards, meeting defined mechanical, thermal, and dielectric requirements
- Engineering-led technical support throughout the asset lifecycle
- Designed for up to 1,000,000 operations before major overhaul
Regulatory Compliance and Integration
Technical Specifications
Type:
On-load rotary tap changer for single-phase voltage regulators, spring-driven mechanism with motor actuationCurrent Capacity:
Up to 668 AOperation:
On-loadOperation Time per Position:
4 secondsOperation Time (Neutral to Maximum Position):
64 secondsOperations Before First Contact Inspection:
150,000 operationsOperations Before Major Overhaul:
Up to 1,000,000 operationsStandards:
IEC 60076-21:2018
IEEE Std C57.15-2017
ABNT NBR 11809:1991Mounting:
Integrated into TSEA single-phase voltage regulators
Frequently
Asked Questions
What is the function of the TSEA CR-3 Tap Changer?
It enables on-load tap switching in single-phase voltage regulators, supporting uninterrupted voltage regulation.
What is the operation time per position?
4 seconds per tap position.
What is the current capacity of the CR-3 Tap Changer?
Up to 668 A, according to design and test parameters.
Does the CR-3 Tap Changer comply with applicable standards?
Yes. It is designed in accordance with IEC 60076-21, IEEE Std C57.15, and ABNT NBR 11809.
What is the expected service life?
Designed for up to 1,000,000 operations before major overhaul. Preventive maintenance intervals specified in the technical manual must be followed.
Is the CR-3 compatible with third-party electronic controllers?
Compatibility must be evaluated on a case-by-case basis. Technical consultation is recommended to ensure proper integration.
