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Premium High Efficiency Motor優質高效電機
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| - A high efficiency type was newly added to the Korean Standard (KSC4202) for 3-phase induction motor of 50HP or below in 1992. | |
| - Scope of the standard was expanded to a capacity of 200kW or below, in 1997 | |
| - NEMA, CANADA Hydro, and JEMA of Japan specify the high efficiency value per capacity of high efficiency motors. | |
| - In America, high efficiency is stipulated by a regulation, The Energy Policy Act (EPACT) | |
| Optimum design of core and windings and use of premium materials can reduce loss by 20-30%, saving power consumption and power facilities. | |
| Adopts class F insulation and applies the service factor 1.15 to secure the margin for temperature increases, thereby increasing the life of windings, and thus, the motor as well | |
| This product is of an energy conservation type generating little loss. Therefore, product costs are high, but operation costs are low. This means that the high initial cost can be compensated for in a short period of time, saving more money as time passes. | |
| The shape and structure of an external fan were changed to reduce loss as a result of wind. This reduces the noise by 3-8dB compared to a standard motor, due to decreased turbulence and electromagnetic noise. | |
| Most of the capacity types and dimensions are consistent with those of standard motors, and this ensures compatibility of traditional motors, supporting IEC and NEMA frames. | |
| - Area requiring high availability and continuous operation | |
| - Area requiring quiet operation (low vibration and noise) | |
| - Area where peak load is applied (for air-conditioning in summer) | |
| - Area which has a small power source capacity and extension of facility is restricted | |
| Initial costs of a high efficiency motor is higher than a standard product by 30-50%, but the great power efficiency can retrieve the increased investment in a short period of time via energy conservation, and one can obtain a higher gain from the investment as operation time passes. | |
| - One must check the input, load, current and voltage of each motor during routine inspection of a facility for use as the basic data to adopt a high efficiency unit. | |
| - To maximize investments, it is recommended to adopt a high efficiency unit for the facility whose annual operation time exceeds 5,000 hours. | |
| - When the amount of fluid is controlled by a valve or damper of a fluid machine, it is necessary to review the variable-speed control before adopting a high efficiency motor. | |
