Digiqub was founded in 2022 by a team that has managed mechanical, electrical and construction projects for many years, with the aim of supporting the digital transformation activities of industrial facilities and providing products and services.
Electric Motor Testing
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ELECTRIC MOTOR TESTING
1. Motor Current Signature Analysis (MCSA)
Motor Current Signature Analysis (MCSA) is a highly effective non-invasive method that captures the motor’s current waveform for in-depth diagnostics. By analyzing the frequency spectrum of the current signal, MCSA identifies mechanical and electrical issues such as broken rotor bars, eccentricity, misalignment, and bearing wear.
Example Use Case: In a manufacturing facility, an MCSA test reveals subtle rotor bar damage, allowing for proactive maintenance that prevents a costly breakdown.
Key Benefits:
- Detects early-stage mechanical and electrical faults.
- Reduces unscheduled downtime by providing early detection.
- Suitable for motors under variable loads and speeds.
2. Electrical Signature Analysis (ESA)
Electrical Signature Analysis (ESA) goes beyond current signatures by examining both voltage and current waveforms for a comprehensive electrical and mechanical health assessment of motors. This technology identifies issues like rotor and stator problems, insulation degradation, and electrical noise.
Finding a motor fault before it breaks can save your organization countless hours of downtime and thousands of dollars in savings, justifying itself immediately.
ESA Testing is suitable for the following motor builds and functions:
- AC/DC Motors
- VFD Applications
- Generators
- Traction Motors
- Machine Tool Motors
- Gearboxes
- Pumps and Fans
- Reliability Testing
- Commissioning Testing
- Troubleshooting
- Energy Evaluation
Example Use Case: ESA reveals early stator winding degradation in a generator, allowing for timely insulation repairs and avoiding unscheduled downtime.
Key Benefits:
- Detects both electrical and mechanical issues.
- Helps optimize maintenance intervals.
- Enables predictive maintenance strategies.
3. Motor Circuit Analysis (MCA)
Motor Circuit Analysis (MCA) is a specialized technique to test the motor’s windings and electrical circuits by measuring resistance, inductance, impedance, and capacitance. MCA identifies insulation breakdown, winding imbalances, and phase issues, ensuring electrical integrity.
MCA measures:
- Resistance
- Impedance
- Inductance
- Fi (phase angle)
- Dissipation Factor
- Insulation to Ground
- I/F (current frequency response)
- Test Value Static (TVS)
- Dynamic Stator and Rotor Signatures
Example Use Case: A routine MCA test reveals phase imbalance in a critical pump motor, allowing for adjustments that prevent severe overheating and operational failure.
Key Benefits:
- Non-invasive testing that prevents major motor failures.
- Detects phase imbalances and insulation failures
- Essential for extending motor lifespan.
4. Implementing Electrical Predictive Maintenance
This service focuses on empowering technicians to implement a structured electrical predictive maintenance program. During a three-day on-site coaching visit, we teach your team how to:
- Terminate motors effectively to minimize resistance.
- Set torque standards using torque drivers.
- Identify and correct crimping tool issues.
- Measure VSD/VFD emissions that cause bearing and insulation failures.
- Combine thermography with resistance testing to find hidden defects.
- Comply with regulatory requirements for scheduled maintenance.
Example Use Case: A three-day coaching session results in significant improvements in motor termination practices, leading to enhanced system reliability and compliance with regulatory standards.