F-68

Keywords

Y2device

Z4

electricity

E29electrical machinery

Toshiba Industrial Products and Systems Corporation

Premium Gold MotorFeatures.

The Premium Gold Motor has been developed by further advancing high-efficiency technology inherited from Japan's first induction motor in 1895. It realizes a high efficiency while maintaining the compatibility of mounting dimensions.
This model is compatible with the "Top Runner Standards" by which the regulation began in 2015 andhas achieved the efficiency level of IE3 (Premium Efficiency) under both of the domestic power
supplies of 200 V-50 Hz and 200/220 V-60 Hz.
("Premium Gold Motor" is a trademark of Toshiba Industrial Products and Systems Corporation.)

Basic Concept or Summary

The samemountingdimension

The sameframenumberThe same mounting dimensions asa conventional induction motor

Stator core [Iron loss]

Stator winding[Primary copper loss]

High-grade electromagnetic
steel sheet
Low flux density

High-density winding
Optimized slot shape

Bearing [Mechanical loss]
Suppression of heating value
Use of low-loss grease

Rotor conductor[Secondary copper loss]
Optimized slot shape

External fan for cooling[Mechanical loss]
Optimized shapeCavity/slot leakage flux [Stray load loss]
Reduced rotor outer-diameter eddy-current loss

Structure of Premium Gold MotorEffects or Remarks
The loss has been reduced by 30 % to 40 % in comparison with induction motors.
The Premium Gold Motor has achieved an energy consumption efficiency that exceeds by far the Top
Runner Standards value.
Comparison of energy consumption efficiency(difference from the standard value)

Loss ratio of Premium Gold Motor assuming theloss of a conventional Toshiba induction motor as
100 (Comparison between Toshiba products)

Loss comparison (50 Hz)

Efficiency value (%)

Energy consumption efficiencyof Premium Gold Motor

Top RunnerStandards target

4P - 200 V - 50 Hz
Output (kW)Output (kW)Comparison of Top Runner Standards value andPremium Gold Motor efficiency

Loss ratio of Premium Gold Motor assuming the loss of a conventional
Toshiba induction motor as 100 (Comparison between Toshiba products)

Example of energy saving effect (when a conventional induction motor was replaced with Premium Gold Motor): Induction motor
Electric energy (MWh per year)

Electric charge (10,000 yen per year)

3.1 MWhreduced!

If the motor
output is
3.7 kW: Premium Gold Motor
CO2 emission (tons per year)

50,000 yen
saved!

630,000
yen

580,000
yen

1.7 tons
reduced!

21.8
ton

20.1
ton1) The electric energy was calculated assuming continuous operation for 24 hours per day and 365
days per year (commercial power).
2) The running cost was calculated with an electric rate of 16 yen per kWh.
3) The CO2 emission coefficient was calculated at 0.554 kg CO2/kWh.
4) 4P-200 V-50 Hz5) 100 % load operation (not considering the motive power increase due to rotation speed differences)
Installation in Practice or Schedule
Domestic
Ratios of main clients
Pump
25 %
Blower fan
16 %Power transmission device 11 %Metalworking machine tool 11 %Transporting machine
11 %Compressor
10 %Other16 %Overseas

Contact:

Parts cleaning plants, etc.

Toshiba Industrial Products and Systems Corporation
URL: http://www.toshiba-tips.co.jp/contact/F-68