Woodward BUM60-12/24-54-B-001

Woodward BUM60-12/24-54-B-001

Product Introduction
The BUM60-12/24-54-B-001 is a specialized brushless exciter module engineered to provide reliable and efficient excitation power for synchronous machines. This unit serves as the primary power source for the generator’s magnetic field, ensuring stable grid synchronization and voltage control under varying load conditions.

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Description

Woodward BUM60-12/24-54-B-001

Technical Specifications

  • Product Series: BUM60 Brushless Excitation System.
  • Output Capacity: Scaled for mid-to-large frame synchronous generators.
  • Control Interface: Compatible with Woodward MicroNet and 505 series digital controllers.
  • Input Power: Derived from generator terminals or permanent magnet generator (PMG).

Functional Features

  • High Efficiency: Optimized magnetic circuit design minimizes excitation power losses.
  • Dynamic Stability: Enhances the transient stability of the power system during grid disturbances.
  • Field Flashing: Integrated residual voltage boosting for reliable initial generator startup.
  • Modular Design: Simplifies replacement and maintenance procedures.

Application Scenarios
Ideal for prime power generation, peak shaving plants, and industrial manufacturing facilities requiring continuous and stable electrical power.

Performance Parameters

  • Ceiling Voltage: High ceiling voltage capability for rapid field forcing during faults.
  • Thermal Capacity: Designed to withstand prolonged over-excitation currents without degradation.
  • Regulation Bandwidth: Wide bandwidth for excellent dynamic performance.

Material Composition
Features high-permeability magnetic cores, vacuum-pressure-impregnated (VPI) windings, and premium-grade rotating rectifier diodes.

Structural Characteristics

  • Enclosure: IP23 or IP54 protection rating depending on application.
  • Terminal Box: Separate, sealed terminal box for exciter stator connections.
  • Cooling Airflow: Designed to integrate seamlessly with the main generator’s cooling system.

Working Principle
Operating on the principle of electromagnetic induction, the stationary field winding creates a flux that cuts the rotating armature conductors. The generated AC power is rectified by a three-phase rotating bridge rectifier, supplying pure DC to the main generator field without any sliding electrical contacts.

Installation Requirements

  • Follow strict torque specifications for all mechanical and electrical connections.
  • Perform insulation resistance (Megger) testing on all windings before energizing.
  • Ensure proper phasing of the exciter stator connections.

Usage Precautions

  • Protect the rotating rectifiers from voltage transients using appropriate snubber circuits.
  • Keep the exciter air intake filters clean to prevent overheating.
  • Do not exceed the continuous field current rating.

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