Products Description
RELIANCE VZ3000 UAZ3455/3475 Thyristor Power Unit in stock
RELIANCE VZ3000 UAZ3455/3475 is a thyristor power unit of VZ3000 series DC drive system. It undertakes AC-DC rectification work, converts three-phase alternating current into regulated direct current, and provides power source for the drive control system.

This power unit is equipped with built-in protection circuit and strong anti-overload capability. It needs to cooperate with the matching control board to realize speed regulation control of heavy-duty DC motors, and is a common spare part for old Reliance drive maintenance.


Data Parameters
1. Brand: Reliance Electric.
2. Model: VZ3000 UAZ3455/3475.
3. Product Type: Thyristor Power Unit.
4. Application: VZ3000 series DC drive system.
5. Feature: Three-phase AC rectification, high overload resistance.
6. Characteristic: Built-in overcurrent, overvoltage and short-circuit protection.
7. Communication: Match with VZ3000 series drive control boards.
8. Package: Power unit assembly with thyristor components.
9. Mounting: Cabinet installation for industrial drive equipment.
10. Operating Temperature: -20℃ ~ +60℃.
Core Functions
1. Convert three-phase AC power into adjustable DC power for drive system.
2. Provide stable DC power output for heavy-duty DC motor speed regulation.
3. Realize power protection such as overcurrent, overvoltage and short circuit.
4. Cooperate with control board to receive speed regulation instructions and adjust output.
5. Support long-time heavy load operation for industrial driving equipment.
Application Scenarios
1. Metallurgical rolling mill VZ3000 DC drive equipment spare replacement.
2. Paper making factory large DC motor drive control transformation project.
3. Mining heavy machinery high torque DC speed control system.
4. Plastic, rubber and wire drawing equipment old drive maintenance and spare parts.
5. Heavy industry VZ3000 series drive power unit spare inventory backup.
FAQ
1. Q: What is RELIANCE VZ3000 UAZ3455/3475?
A: It is a thyristor power unit for Reliance VZ3000 DC drive system.2. Q: Can it work alone without control board?
A: No, it must be used with the supporting VZ3000 drive control board.3. Q: What are common failure points?
A: Thyristor breakdown, aging of power terminals and fuse damage.