Brush Rigging Inspections

Not Sure if You Have a Problem with Your Brush Excitation System?

Not sure what to look for?

Have one of our experienced team members come on-site and do a full inspection of your brush rigging while the unit is running.

All online inspections include:

Vibration Analysis

Determines the health of the collector ring/commutator and how ‘out-of-round’ the collector ring is in Mils Displacement, Peak-to-Peak

Visual Stroboscope Inspection

We will look for visual evidence of collector ring damage that often traces back to brush holder problems or environmental problems.

Brush Amperage

This allows us to get an idea if any brushes are making poor contact with the ring or if selective action is occurring.

As well as…

Brush & Holder Evaluation

We will look for evidence of carbon deposits, brush binding, spring problems or other common issues that OEM Brush Holders can present.

Photos & Job Report

All inspections are followed up with a detailed job report and photo evidence of our findings as well as next-step recommendations.

Get a Quote

Have one of our experienced team members come on-site and do a full inspection of your brush rigging while the unit is running.

Request a Quote

What is Brush Rigging Inspection?

Brush rigging inspections are preventive maintenance services focused on evaluating the health and performance of generator excitation system components. These inspections help identify wear, contamination, alignment problems, and electrical issues that can negatively impact generator reliability and operational efficiency.

Cutsforth performs detailed evaluations of brush holders, collector rings, spring pressure systems, insulation, and related hardware to identify developing problems before they lead to costly failures. With decades of experience supporting rotating electrical equipment, Cutsforth helps facilities improve reliability and extend equipment lifespan through comprehensive inspection services.

Key inspection areas include:

Brush holder alignment and condition
Collector ring surface evaluation
Brush wear analysis
Spring pressure verification
Insulation integrity checks
Hardware security and vibration assessment
Electrical tracking and arcing indicators

Benefits of Brush Rigging Inspections

Routine brush rigging inspections help facilities reduce operational risk by identifying mechanical and electrical issues early. Detecting problems such as uneven brush wear, improper alignment, and collector ring damage before failure occurs helps prevent forced outages and costly emergency repairs.

These inspections also improve long-term maintenance planning and equipment reliability. Properly maintained brush rigging systems support stable current transfer, reduce component wear, and help extend the life of excitation system components while lowering overall maintenance costs.

Benefits of brush rigging inspections include:

Reduced risk of unplanned outages
Improved generator reliability
Lower long-term maintenance costs
Extended brush and collector ring lifespan
Improved excitation system stability
Better outage and maintenance planning
Reduced equipment wear and damage
Support for predictive maintenance strategies

FAQ

How often should brush rigging systems be inspected?

Inspection intervals depend on operating conditions, equipment age, and maintenance practices. Many facilities inspect systems during planned outages or annual maintenance schedules.

What problems can inspections identify?

Brush rigging inspections can identify uneven brush wear, improper spring pressure, contamination, collector ring damage, insulation degradation, and vibration-related issues.

Why is proper brush alignment important?

Proper alignment improves current transfer and reduces uneven wear. Misalignment can contribute to overheating, excessive wear, and excitation system instability.

Does Cutsforth provide maintenance recommendations?

Yes. Cutsforth provides detailed findings and recommendations to help facilities address reliability concerns and improve maintenance planning.

Why Companies Choose Cutsforth for Brush Rigging Inspections

Cutsforth has more than 30 years of experience supporting generator reliability and excitation system maintenance. Our expertise in brush holder technology and rotating equipment allows us to provide inspections that go beyond basic visual evaluations.

Companies choose Cutsforth because we combine field-proven maintenance experience with advanced diagnostic capabilities and predictive maintenance expertise. Our inspection services help facilities improve uptime, reduce operational costs, and support long-term equipment reliability strategies.

Reasons companies choose Cutsforth include:

More than three decades of generator expertise
Specialized knowledge of excitation systems
Advanced diagnostic and inspection capabilities
Detailed reporting and actionable recommendations
Integration with predictive maintenance programs
Trusted support for utility and industrial applications
Proven reliability solutions used worldwide

Contact Cutsforth today to schedule a Brush Rigging Inspection and learn how our generator maintenance expertise can help improve equipment reliability, reduce downtime, and extend the life of your critical rotating assets.