Simo high voltage motor experiment report

Simo High Voltage Motor Experiment Report

Objective:

The objective of this experiment is to evaluate the performance and characteristics of a high voltage motor manufactured by Simo Electric, including its operational efficiency, load response, temperature behavior, and overall reliability under varying voltage conditions.

Equipment Used:

1. Simo High Voltage Motor

2. Variable Power Supply (0–400 V)

3. Digital Multimeter

4. Power Analyzer

5. Thermocouples

6. Tachometer

7. Load Bank (resistive or dynamic load)

8. Insulation Resistance Tester

9. Current and Voltage Probes

10. Data Acquisition System (for real-time performance monitoring)

Experimental Setup:

The experiment setup consisted of a high voltage motor connected to a variable power supply. The motor was driven under different voltage levels, ranging from 200 V to 400 V. A load bank was used to simulate various load conditions, and the motor was monitored for electrical and mechanical parameters such as voltage, current, speed, torque, temperature, and efficiency.

Procedure:

1. Initial Checks and Safety Precautions:

– Verify all equipment connections and insulation levels.

– Perform an insulation resistance test to ensure no electrical faults.

– Check the condition of the motor, including the bearings, wiring, and casing.

2. Startup Procedure:

– Set the power supply to 0 V and gradually increase the voltage while observing the current draw and any unusual behavior.

– Measure and record the voltage, current, and power at idle or no-load conditions.

3. Load Testing:

– Incrementally increase the load on the motor by adjusting the load bank.

– Record the motor’s voltage, current, and efficiency at various load levels (e.g., 25%, 50%, 75%, 100%).

– Monitor motor temperature at key intervals using the thermocouples to assess any overheating issues.

4. Performance Monitoring:

– Measure the speed and torque of the motor at different loads using a tachometer and a torque sensor.

– Monitor the power factor and efficiency of the motor under different operating conditions.

– Observe any changes in noise or vibration that could indicate mechanical issues.

5. Shutdown and Cooling:

– Once testing at various loads is complete, gradually reduce the load and power supply voltage to zero.

– Allow the motor to cool to ambient temperature and monitor any post-operation abnormalities.

Data Collection:

The following parameters were recorded throughout the experiment:

– Voltage (V)

– Current (A)

– Power (W)

– Speed (RPM)

– Torque (Nm)

– Motor Temperature (°C)

– Efficiency (%)

– Power Factor (PF)

– Insulation Resistance (MΩ)

Data from the power analyzer, multimeter, and thermocouples were logged into the data acquisition system for further analysis.

Results:

The data collected was analyzed to evaluate the motor’s performance across various voltage levels and loads. Key observations include:

1. Voltage and Current Relationship:

– As the voltage increased, the current drawn by the motor also increased in a linear fashion, with a significant rise under load conditions.

2. Efficiency:

– The motor exhibited peak efficiency at 75% load. At full load (100%), the efficiency dropped slightly, indicating some energy losses due to heat and friction.

3. Temperature Response:

– The motor’s temperature increased with the load, stabilizing after a few minutes of continuous operation. The highest temperature observed was within the recommended operational limits.

4. Power Factor:

– The motor maintained a power factor close to 1 at higher loads, indicating good load handling and minimal reactive power under normal operating conditions.

5. Torque and Speed:

– At no-load, the motor ran at near-rated speed (depending on the supply voltage), but torque output increased significantly under load, correlating with the applied power.

Conclusion:

The Simo high voltage motor performed within the expected parameters during the experiment. It demonstrated stable operation across varying voltage and load conditions, with acceptable levels of efficiency and temperature rise. The motor’s power factor and torque-speed characteristics were consistent with its design specifications, indicating robust performance for industrial applications requiring high voltage motors.

Recommendations:

1. Continuous monitoring of temperature and insulation resistance is recommended for long-term operation.

2. For applications near full load, consider additional cooling solutions to maintain motor efficiency and prevent overheating.Frequency inverters

3. Regular maintenance and checks on bearing conditions are necessary to avoid mechanical failures due to vibration or wear.

Further tests, such as long-duration endurance testing, could provide more insight into the motor’s long-term reliability under high voltage operation.