Special Equipment Testing

Rotating Machines (Motors & Generators)Testing

Specialized Testing Services:

1. Insulation Resistance and Polarization Index (PI) Testing:

   • Evaluates the insulation condition of windings and components.

   • Detects moisture ingress, contamination, or aging of insulation materials.

2. Tan Delta / Power Factor Testing:

   • Measures dissipation factor (tan δ) to assess insulation health.

   • Identifies insulation deterioration, moisture, or other defects.

3. Partial Discharge Testing:

   • Detects localized insulation defects and corona activity in windings.

   • Enables early detection of potential failure points.

4. Winding Resistance Measurement:

   • Measures resistance across motor or generator windings.

   • Detects loose connections, shorted turns, or uneven winding conditions.

5. Surge Comparison Testing:

   • Identifies turn-to-turn, phase-to-phase, and winding-to-ground faults.

   • Detects mechanical damage, winding deformation, and insulation weaknesses.

Benefits of Specialized Testing:

• Early identification of insulation and winding issues prevents unexpected failures

• Supports predictive maintenance and condition-based monitoring programs

• Enhances reliability, efficiency, and operational safety of motors and generators

• Reduces downtime and maintenance costs while extending asset life

Rotating machines, including motors and generators, are critical assets in power generation and industrial operations. Ensuring their insulation integrity, winding condition, and overall electrical performance is essential to avoid unplanned downtime and costly failures. Specialized testing services provide detailed diagnostics to detect insulation degradation, partial discharges, and winding issues, supporting preventive maintenance, commissioning, and condition-based monitoring.