A domestic knowledge-based company has produced an electric motor control device that can be used to troubleshoot power lines and motors, which helps reduce energy wastage and costs.
An electric motor control device is the main tool for undertaking predictive repairs and preventing unwanted outages caused by errors in motors used in industrial electric drives, according to a member of the Board of Directors of Yekta Behineh Tavan Company (aka Yekta Behan).
“Electrical analysis, insulation test, thermal analysis and thermographic analysis are among monitoring methods that can prevent the failure of transmission lines,” Reza Mehri was also quoted as saying by the news portal of Vice-Presidency for Science and Technology.
Motor control devices are designed to be controlled in a manual, automatic, or remote manner. They can be used for starting or stopping a motor attached to a machine, apart from serving several other purposes such as condition monitoring. These controls are categorized according to the type of motor they are designed to operate.
Condition monitoring observes motor current and voltage signals, as well as thermography and mechanical vibrations.
Each of the common mechanical and electrical defects of electric motors and power lines has a specific effect on the measured waveforms and can be identified by analyzing the waveforms.
The electrical monitoring of electric motors records the current and voltage of the stator phases and analyzes its characteristics, making it possible to identify most of the common faults in electric motors and power lines.
By using the troubleshooting technique, it is possible to identify the defects in the rotor, stator, air gap and other mechanical parts and prevent further damage. For this purpose, the current and voltage behavior of the motor in different working conditions are recorded and data are analyzed.
By using troubleshooting, it is possible to identify broken or cracked rotor bars, check the condition of wound rotor motors and stator core, in addition to solving winding and insulation problems.
Noting that Yekta Behan has created 12 jobs directly, Mehri said the company has been able to meet the country’s needs and save foreign currency by preventing the import of foreign counterparts.
Domestic Calibrator Cost-Competitive
A domestic knowledge-based company has developed a calibrator that can compete with foreign counterparts in terms of both quality and price.
Calibration is the process of adjusting a device to meet the manufacturer’s specifications while conforming to international standards. Calibrators vary in form and function, depending on the devices and equipment they are designed to regulate.
According to a member of the Board of Directors of Behrad Sazan Parse Shiraz Company, the criteria measured by the high-quality domestic calibrator are traceable measurement standards.
“The purpose of calibration is to control the precision of the metrological parameters of testing and measuring devices and equipment,” Hossein Bostani was also quoted as saying by the Vice-Presidency for Science and Technology.
The most sophisticated industrial equipment will not be useful unless it is well calibrated. Through calibration, adjustments made to a piece of equipment ensure that it performs as expected and that it can be relied on to deliver predictable, accurate results that meet quality standards.
Usually, after some time, an equipment could develop an error in measurement. For its correct operation, its system must have the accuracy for conducting precise measurements.
Thermocouples, temperature and pressure indicators, flow and level transmitters and control valves are among other devices that should be calibrated.
The initial calibration of a testing and measuring device is carried out in the production process, which can include the grading of device, adjusting electrical circuits, such as setting digital indicators and ensuring the stability of the device. After some time, calibrators can be used to regulate the device periodically.
Bostani noted that the domestic calibrator helps reduce the cost of companies by half and prevents a significant foreign currency outflow by making imports unnecessary.
“If the necessary state support is extended in the field of export, this product could compete with foreign counterparts,” he said.
“About 20 jobs have been created in Parse Shiraz Behrad Sazan Company with the production of this calibrator, which can be increased when exports gain momentum.”
Ultrasonic Water Meter Cost-Effective
A knowledge-based company has designed a smart water meter with very high accuracy and additional features to replace mechanical meters.
“The ultrasonic smart water meter has higher accuracy than traditional mechanical meters,” Abolfazl Janfada, CEO of Be Saaz-e-Energy Company, said.
In a housing unit under construction, a water meter is installed on the inlet pipe and another on the outlet pipe so that the difference between incoming and outgoing water helps calculate the amount of hot water consumed.
The meter helps measure the consumption of water and thermal energy in different parts of the building to calculate the water and gas bills of each housing unit, as well as those of industrial units.
It measures fluid velocity, instantaneous and volumetric flow, direction of water movement, meter operation time and water temperature.
The lifespan of this meter is 2-3 times that of mechanical meters and due to its very small measurement error, it helps customers pay the real water bill.
With this product, the water flow can be turned off for a consumer who exceeds the consumption pattern, or refuses to pay the water bill. It has been marketed at a lower price, which can compete with similar European models.
The software and hardware of this product have been designed by the company’s specialized workforce.
