Frequently Asked Questions
What are electronically commutated (EC) motors?
Electronically commutated (EC) motors are brushless DC motors where the direction of the electric current is switched using electronic controllers. As the switching of the current is technically known as “commutating”, brushless motors are also called “electronically commutated” motors. EC motors provide the advantages of brushed DC motors in terms of the ability to have variable speed control, but without the drawbacks of brushes. Without brushes to wear out, EC motors have design lives equal or longer than AC motors.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What other types of electric motors are used in the ventilation, refrigeration and appliance industries?
Wellington operates in the fractional and subfractional motor market for ventilation, refrigeration and appliances. Aside from EC motors, common types of motors are AC induction motors.
AC induction motors
These motors consist of a spinning part (the “rotor”) and a part that remains fixed (the “stator”). Different motor designs will have the permanent magnets in the rotor or the stator and hence windings to generate the induced magnetic field in the stator or the rotor respectively. Motor designs also vary in that the fixed stator can be either the interior or the exterior part. A traditional motor design usually has a fixed outside stator with permanent magnets and an internal spinning rotor with copper windings. The combined electromagnetic effect of the rotor and stator’s electrical circuits is what makes the rotor spin.
Common AC motors used to drive fans in ventilation and refrigeration applications include shaded pole motors and permanent split capacitor (PSC) motors.
Shaded pole motors
Shaded pole motors are sold in huge quantities in the ventilation and refrigeration industries and are the cheapest motor option to drive a fan. They are inefficient (typically 18% efficient) and, since a new motor is required for small differences in power output, customers often need to employ a large number of models to drive their applications. Because of their low efficiency levels, shaded pole motors run hot and produce large amounts of waste heat.
Permanent split capacitor (PSC) motors
PSC motors require an external capacitor to be connected to the motor circuit. PSC motors have efficiency range at full load of 50-60%, but in most cases operate at less than full load, which reduces the efficiency of the motor installed in an application to only 15-40%.
What are the advantages of EC motors?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by traditional induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and dramatically reduce the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
EC motors also have a wider operating range than traditional induction motors, which means that one EC motor can replace a number of induction motor models. In this way, the number of models required by a typical customer is significantly decreased, which decreases and simplifies inventory. This is the main reason why EC product lines usually include less motor models than their induction counterparts.
In terms of speed control and features, because the motor’s operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.
EC motors are also quieter than traditional inefficient motors, have longer design life and require less maintenance.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What about cost?
EC motors are more expensive than traditional inefficient motors used in the ventilation, refrigeration and appliance industries but, in recent years, due to a number of factors including soaring energy prices, and reduced cost of EC technology due to increased volumes, they have become a cost-effective alternative to shaded pole and PSC motors.
The huge energy savings provided by EC motors, mean equally large $ savings in operating costs, which in turn translate in payback periods as short as a few months, and motor life savings of hundreds of dollars in a typical application.
In our case, together with high energy savings, low use of raw material, low part count and simple electronics with only the necessary features, have allowed us to make our motor price very competitive on the ventilation, refrigeration and appliance markets.
What are some applications of EC motors?
EC motors are commonly used in computer disk drives and in high performance motion control products, such as machine tools.
In the ventilation and refrigeration industries, EC motors are found in commercial refrigerators and freezers, beverage merchandisers, vending machines, air conditioners, and many other air moving and refrigeration applications where energy saving, speed control, or low noise and vibrations are important.
How are EC motors “energy saving”?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by shaded pole or PSC induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and reduce dramatically the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
How are Wellington motors “sustainable”?
The huge energy savings provided by Wellington’s EC motors directly translate into large carbon emissions savings. In this way, switching to EC motors allows our customers to dramatically reduce the air pollution (CO2) generated by their applications.
Also, Wellington energy saving motors are designed using less raw materials than traditional inefficient motors and other electronically commutated motors. In particular, Wellington motors use 30% less copper and 80% less steel than traditional induction motors, a dramatic reduction in the motor components’ environmental impact.
Frequently Asked Questions
What are electronically commutated (EC) motors?
Electronically commutated (EC) motors are brushless DC motors where the direction of the electric current is switched using electronic controllers. As the switching of the current is technically known as “commutating”, brushless motors are also called “electronically commutated” motors. EC motors provide the advantages of brushed DC motors in terms of the ability to have variable speed control, but without the drawbacks of brushes. Without brushes to wear out, EC motors have design lives equal or longer than AC motors.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What other types of electric motors are used in the ventilation, refrigeration and appliance industries?
Wellington operates in the fractional and subfractional motor market for ventilation, refrigeration and appliances. Aside from EC motors, common types of motors are AC induction motors.
AC induction motors
These motors consist of a spinning part (the “rotor”) and a part that remains fixed (the “stator”). Different motor designs will have the permanent magnets in the rotor or the stator and hence windings to generate the induced magnetic field in the stator or the rotor respectively. Motor designs also vary in that the fixed stator can be either the interior or the exterior part. A traditional motor design usually has a fixed outside stator with permanent magnets and an internal spinning rotor with copper windings. The combined electromagnetic effect of the rotor and stator’s electrical circuits is what makes the rotor spin.
Common AC motors used to drive fans in ventilation and refrigeration applications include shaded pole motors and permanent split capacitor (PSC) motors.
Shaded pole motors
Shaded pole motors are sold in huge quantities in the ventilation and refrigeration industries and are the cheapest motor option to drive a fan. They are inefficient (typically 18% efficient) and, since a new motor is required for small differences in power output, customers often need to employ a large number of models to drive their applications. Because of their low efficiency levels, shaded pole motors run hot and produce large amounts of waste heat.
Permanent split capacitor (PSC) motors
PSC motors require an external capacitor to be connected to the motor circuit. PSC motors have efficiency range at full load of 50-60%, but in most cases operate at less than full load, which reduces the efficiency of the motor installed in an application to only 15-40%.
What are the advantages of EC motors?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by traditional induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and dramatically reduce the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
EC motors also have a wider operating range than traditional induction motors, which means that one EC motor can replace a number of induction motor models. In this way, the number of models required by a typical customer is significantly decreased, which decreases and simplifies inventory. This is the main reason why EC product lines usually include less motor models than their induction counterparts.
In terms of speed control and features, because the motor’s operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.
EC motors are also quieter than traditional inefficient motors, have longer design life and require less maintenance.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What about cost?
EC motors are more expensive than traditional inefficient motors used in the ventilation, refrigeration and appliance industries but, in recent years, due to a number of factors including soaring energy prices, and reduced cost of EC technology due to increased volumes, they have become a cost-effective alternative to shaded pole and PSC motors.
The huge energy savings provided by EC motors, mean equally large $ savings in operating costs, which in turn translate in payback periods as short as a few months, and motor life savings of hundreds of dollars in a typical application.
In our case, together with high energy savings, low use of raw material, low part count and simple electronics with only the necessary features, have allowed us to make our motor price very competitive on the ventilation, refrigeration and appliance markets.
What are some applications of EC motors?
EC motors are commonly used in computer disk drives and in high performance motion control products, such as machine tools.
In the ventilation and refrigeration industries, EC motors are found in commercial refrigerators and freezers, beverage merchandisers, vending machines, air conditioners, and many other air moving and refrigeration applications where energy saving, speed control, or low noise and vibrations are important.
How are EC motors “energy saving”?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by shaded pole or PSC induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and reduce dramatically the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
How are Wellington motors “sustainable”?
The huge energy savings provided by Wellington’s EC motors directly translate into large carbon emissions savings. In this way, switching to EC motors allows our customers to dramatically reduce the air pollution (CO2) generated by their applications.
Also, Wellington energy saving motors are designed using less raw materials than traditional inefficient motors and other electronically commutated motors. In particular, Wellington motors use 30% less copper and 80% less steel than traditional induction motors, a dramatic reduction in the motor components’ environmental impact.
Frequently Asked Questions
What are electronically commutated (EC) motors?
Electronically commutated (EC) motors are brushless DC motors where the direction of the electric current is switched using electronic controllers. As the switching of the current is technically known as “commutating”, brushless motors are also called “electronically commutated” motors. EC motors provide the advantages of brushed DC motors in terms of the ability to have variable speed control, but without the drawbacks of brushes. Without brushes to wear out, EC motors have design lives equal or longer than AC motors.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What other types of electric motors are used in the ventilation, refrigeration and appliance industries?
Wellington operates in the fractional and subfractional motor market for ventilation, refrigeration and appliances. Aside from EC motors, common types of motors are AC induction motors.
AC induction motors
These motors consist of a spinning part (the “rotor”) and a part that remains fixed (the “stator”). Different motor designs will have the permanent magnets in the rotor or the stator and hence windings to generate the induced magnetic field in the stator or the rotor respectively. Motor designs also vary in that the fixed stator can be either the interior or the exterior part. A traditional motor design usually has a fixed outside stator with permanent magnets and an internal spinning rotor with copper windings. The combined electromagnetic effect of the rotor and stator’s electrical circuits is what makes the rotor spin.
Common AC motors used to drive fans in ventilation and refrigeration applications include shaded pole motors and permanent split capacitor (PSC) motors.
Shaded pole motors
Shaded pole motors are sold in huge quantities in the ventilation and refrigeration industries and are the cheapest motor option to drive a fan. They are inefficient (typically 18% efficient) and, since a new motor is required for small differences in power output, customers often need to employ a large number of models to drive their applications. Because of their low efficiency levels, shaded pole motors run hot and produce large amounts of waste heat.
Permanent split capacitor (PSC) motors
PSC motors require an external capacitor to be connected to the motor circuit. PSC motors have efficiency range at full load of 50-60%, but in most cases operate at less than full load, which reduces the efficiency of the motor installed in an application to only 15-40%.
What are the advantages of EC motors?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by traditional induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and dramatically reduce the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
EC motors also have a wider operating range than traditional induction motors, which means that one EC motor can replace a number of induction motor models. In this way, the number of models required by a typical customer is significantly decreased, which decreases and simplifies inventory. This is the main reason why EC product lines usually include less motor models than their induction counterparts.
In terms of speed control and features, because the motor’s operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.
EC motors are also quieter than traditional inefficient motors, have longer design life and require less maintenance.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What about cost?
EC motors are more expensive than traditional inefficient motors used in the ventilation, refrigeration and appliance industries but, in recent years, due to a number of factors including soaring energy prices, and reduced cost of EC technology due to increased volumes, they have become a cost-effective alternative to shaded pole and PSC motors.
The huge energy savings provided by EC motors, mean equally large $ savings in operating costs, which in turn translate in payback periods as short as a few months, and motor life savings of hundreds of dollars in a typical application.
In our case, together with high energy savings, low use of raw material, low part count and simple electronics with only the necessary features, have allowed us to make our motor price very competitive on the ventilation, refrigeration and appliance markets.
What are some applications of EC motors?
EC motors are commonly used in computer disk drives and in high performance motion control products, such as machine tools.
In the ventilation and refrigeration industries, EC motors are found in commercial refrigerators and freezers, beverage merchandisers, vending machines, air conditioners, and many other air moving and refrigeration applications where energy saving, speed control, or low noise and vibrations are important.
How are EC motors “energy saving”?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by shaded pole or PSC induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and reduce dramatically the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
How are Wellington motors “sustainable”?
The huge energy savings provided by Wellington’s EC motors directly translate into large carbon emissions savings. In this way, switching to EC motors allows our customers to dramatically reduce the air pollution (CO2) generated by their applications.
Also, Wellington energy saving motors are designed using less raw materials than traditional inefficient motors and other electronically commutated motors. In particular, Wellington motors use 30% less copper and 80% less steel than traditional induction motors, a dramatic reduction in the motor components’ environmental impact.
Frequently Asked Questions
What are electronically commutated (EC) motors?
Electronically commutated (EC) motors are brushless DC motors where the direction of the electric current is switched using electronic controllers. As the switching of the current is technically known as “commutating”, brushless motors are also called “electronically commutated” motors. EC motors provide the advantages of brushed DC motors in terms of the ability to have variable speed control, but without the drawbacks of brushes. Without brushes to wear out, EC motors have design lives equal or longer than AC motors.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What other types of electric motors are used in the ventilation, refrigeration and appliance industries?
Wellington operates in the fractional and subfractional motor market for ventilation, refrigeration and appliances. Aside from EC motors, common types of motors are AC induction motors.
AC induction motors
These motors consist of a spinning part (the “rotor”) and a part that remains fixed (the “stator”). Different motor designs will have the permanent magnets in the rotor or the stator and hence windings to generate the induced magnetic field in the stator or the rotor respectively. Motor designs also vary in that the fixed stator can be either the interior or the exterior part. A traditional motor design usually has a fixed outside stator with permanent magnets and an internal spinning rotor with copper windings. The combined electromagnetic effect of the rotor and stator’s electrical circuits is what makes the rotor spin.
Common AC motors used to drive fans in ventilation and refrigeration applications include shaded pole motors and permanent split capacitor (PSC) motors.
Shaded pole motors
Shaded pole motors are sold in huge quantities in the ventilation and refrigeration industries and are the cheapest motor option to drive a fan. They are inefficient (typically 18% efficient) and, since a new motor is required for small differences in power output, customers often need to employ a large number of models to drive their applications. Because of their low efficiency levels, shaded pole motors run hot and produce large amounts of waste heat.
Permanent split capacitor (PSC) motors
PSC motors require an external capacitor to be connected to the motor circuit. PSC motors have efficiency range at full load of 50-60%, but in most cases operate at less than full load, which reduces the efficiency of the motor installed in an application to only 15-40%.
What are the advantages of EC motors?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by traditional induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and dramatically reduce the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
EC motors also have a wider operating range than traditional induction motors, which means that one EC motor can replace a number of induction motor models. In this way, the number of models required by a typical customer is significantly decreased, which decreases and simplifies inventory. This is the main reason why EC product lines usually include less motor models than their induction counterparts.
In terms of speed control and features, because the motor’s operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.
EC motors are also quieter than traditional inefficient motors, have longer design life and require less maintenance.
Wellington EC motors can be operated directly from AC mains supply, or from DC.
What about cost?
EC motors are more expensive than traditional inefficient motors used in the ventilation, refrigeration and appliance industries but, in recent years, due to a number of factors including soaring energy prices, and reduced cost of EC technology due to increased volumes, they have become a cost-effective alternative to shaded pole and PSC motors.
The huge energy savings provided by EC motors, mean equally large $ savings in operating costs, which in turn translate in payback periods as short as a few months, and motor life savings of hundreds of dollars in a typical application.
In our case, together with high energy savings, low use of raw material, low part count and simple electronics with only the necessary features, have allowed us to make our motor price very competitive on the ventilation, refrigeration and appliance markets.
What are some applications of EC motors?
EC motors are commonly used in computer disk drives and in high performance motion control products, such as machine tools.
In the ventilation and refrigeration industries, EC motors are found in commercial refrigerators and freezers, beverage merchandisers, vending machines, air conditioners, and many other air moving and refrigeration applications where energy saving, speed control, or low noise and vibrations are important.
How are EC motors “energy saving”?
EC motors are very high efficiency (65% to 80%) electric motors and maintain a high efficiency level at part speed. This means that in most cases they use from less than one third to one half of the electricity used by shaded pole or PSC induction motors used in the ventilation and refrigeration industries, which in turn translates into lower operating costs and short payback periods.
EC motors’ high efficiency also means that the motors run “cool”, and reduce dramatically the amount of waste heat produced. High efficiency at the motor level also typically translates in reduced operation at the compressor level, which allows further energy savings.
How are Wellington motors “sustainable”?
The huge energy savings provided by Wellington’s EC motors directly translate into large carbon emissions savings. In this way, switching to EC motors allows our customers to dramatically reduce the air pollution (CO2) generated by their applications.
Also, Wellington energy saving motors are designed using less raw materials than traditional inefficient motors and other electronically commutated motors. In particular, Wellington motors use 30% less copper and 80% less steel than traditional induction motors, a dramatic reduction in the motor components’ environmental impact.
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