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Motor Summit 2014
Japan starts with mandatory motor
requirements
Takeshi Obata
The Japan Electrical manufacturer’s Association (JEMA)
(Hitachi Industrial Equipment Systems Co.,Ltd)
1
Overview
The Top runner scheme will be applied to industrial induction motors from
Fiscal Year 2015 in Japan, as one of the operation of The Energy Conservation
Law (hereinafter referred as “ECL”). The purpose of this law is efficient energy
use. This paper shows the obligation that Top runner motors should have their
estimated effect for energy saving.
Overview
1. The obligation of Top runner motor (for manufacturer and
importer)
2. The obligation of Energy Users based on the ECL
3. Next step
4. Conclusions
2
World situation
Time frame and IE class
2008
USA
Canada
2009
2010
2011
2012
2013
：IE3
：IE2
2014
2015
2016
2017
2018
’97～EPAct：EPAct（IE2）
EISA：’10/12～NEMA Premium
’95～EEAct：Energy Efficient
（IE3）
（IE2）
EEAct： ’11/1～Premium（IE3）
MEPS（Minimum Energy Performance Standards）
Australia
New Zealand ’06～EEF1（IE2＋α）
’11/6～IE2
EU27
’08/7～45kW over
Korea
China
Brazil
’10/1～15kW over
’10/7～0.75kW up to
’11/1～8P
IE3 or IE2＋INV drive
’15/1～7.5kW over
’17/1～0.75kW up to
’15/1～37kW～200kW
’16/1～15kW～37kW
’17/1～0.75～15kW
’11/7～GB2 class（IE2＋α）
’12/9～New GB3 class
（IE2）
’07/7～GB3 class
’09/12～IE2
Japan
’16/9～7.5kW over
’17/9～
0.75kW over
’17/1～IE3
’15/4～IE3 Top runner
Source：http://www.jema-net.or.jp/Japanese/pis/pdf/imotor1.pdf
3
1. The obligation of Top runner motor
（for manufacturer and importer）
Difference between MEPS and Top runner.
Target
Time Frame
2015.4.1
2016.4
Regulation
2017.4
Nominal efficiency
Tolelace
M
E
P
S
Efficiency
distribution of the
motor producted.
MOTOR
Every motor must meet regulation.
Products
cannnot be sold.
Average efficiency
2015.4.1
T
O
P
R
U
N
N
E
R
2016.4
2017.4
Regulated efficiency
Efficiency
distribution of the
motor producted
in category.
MOTOR
Manufacturer
&
MOTOR
Importer
Report to METI.
Average efficiency in Category
during one fiscal year.
Report to
METI.
Average efficiency
4
Regulated efficiency
The regulated efficiency of each category is defined on IE3 4 pole motor
efficiency.
The time average of the efficiency defined multiplier used for 2 pole and
6 pole motors.
60Hz
50Hz
from
to
Regulated
efficiency
［%］
1
0.75kW
≤ 0.925kW
85.5
14
0.75kW
82.5
27
37kW
93.9
2
> 0.925kW
≤ 1.85kW
86.5
15
1.1kW
84.1
28
45kW
94.2
3
> 1.85kW
≤ 4.6kW
89.5
16
1.5kW
85.3
29
55kW
94.6
4
> 4.6kW
≤ 9.25kW
91.7
17
2.2kW
86.7
30
75kW
95.0
5
> 9.25kW
≤ 13kW
92.4
18
3kW
87.7
31
90kW
95.2
6
> 13kW
≤ 16.75kW
93.0
19
4kW
88.6
32
110kW
95.4
7
> 16.75kW
≤ 26kW
93.6
20
5.5kW
89.6
33
132kW
95.6
8
> 26kW
≤ 33.5kW
94.1
21
7.5kW
90.4
34
160kW
95.8
9
> 33.5kW
≤ 41kW
94.5
22
11kW
91.4
35
200～375kW
96.0
10
> 41kW
≤ 50kW
95.0
23
15kW
92.1
11
> 50kW
≤ 100kW
95.4
24
18.5kW
92.6
36
Others
Defined
by eguation
12
> 100kW
≤ 130kW
95.8
25
22kW
93.0
13
> 130kW
≤ 375kW
96.2
26
30kW
93.6
Rated output power
Category
Category
Rated output
power
Regulated
efficiency
［%］
Category
Rated output
power
Regulated
efficiency
［%］
Regulated efficiency : IE3
5
Test method（1）
Test method is defined from JIS C 4034-2-1. (IEC 60034-2-1) Only one method
is allowed by ECL to determine efficiency equal to IEEE 112 method B.
(Low uncertain)
Calculating stray-load losses by a load test with torque measurement.
Indirect method
・Couple the motor to a load machine with a torque meter.
・Determination of losses and summing up total loss PT.
・Calculating indirectly efficiency, subtracting total loss PT from input.
Efficiency（%）＝（P1－PT）／P1×100
P1:Input power
Load losses
Additional-load
Constant losses
Caluculated from
Calculated from
Total losses ＰＴ＝ observed data at ＋ losses
＋ observed data at
Calculated from observed
rated load test.
data at load curve test.
no-load test.
6
Test method（2）
Load losses
・Sum of the excitation
winding losses.
・Calculated from
voltage, current,
resistance, and etc
prescribed by JIS, at
rated output after
reaching the condition
of the thermal
equilibrium.
3φ power
source
Variable
transformer
Motor
Constant losses
Additional-load
losses
・Sum of the iron losses,
friction losses and wind
age loss, and etc.
・Calculated form current,
resistance, and etc,
prescribed by JIS at noload and at several
reduced voltage points.
・Losses caused by
load current.
・Apply the load to the
machine at six load
points.
・Calculated form
voltage, current,
resistance, and etc,
prescribed by JIS at
the thermal
equilibrium.
3φ power
source
Measurement
instrument
Torque
meter
Load
Tachometer
Variable
transformer
Measurement
instrument
Motor
7
Technical standard system
JIS：Japanese Industrial Standard
IEC
IEC 60034-30:2008
Efficiency class
（IE code）
JIS for motor characteristics
JIS C 4034-30
Efficiency class
（IE code）
IEC 60034-1
Rotating machine
JIS C 4210:2001
Induction motor （IE1
revel）
0.2kW～37kW
IEC 60072-1
Frame size
IEC 60034-2-1
Deterring efficiency
JIS C 4034-2-1
Deterring efficiency
IEC 60034-9
Noise
JIS C 4213:2014
Top runner motor
（IE3）
0.75kW～375kW
JIS C 4212:2000
High efficiency induction motor
（IE2 revel）
0.2kW～160kW
IEC 60034-12
Starting
characteristics
IEC 60034-5
Protection
JIS for motor product
JIS C 4034-5
Protection
8
JIS C 4213：2014
Rated Output Power / Frame size
Rated output power / Frame size is shown just for reference.
Rated Output Power
（kW）
2P
0.2
0.4
0.75
1.5
2.2
―
3.7
5.5
7.5
―
11
15
―
4P
0.2
0.4
0.75
1.5
2.2
3.7
5.5
6P
―
―
0.4
0.75
1.5
2.2
3.7
7.5
―
5.5
―
11
7.5
Frame
No.
63M
71M
80M
90L
100L
112M
132S
132M
160M
Rated Output Power
（kW）
2P
18.5
―
22
―
30
―
37
45
―
55
―
4P
―
15
6P
―
11
Frame
No.
160L
180M
18.5
22
―
30
15
―
―
18.5
22
―
37
45
―
55
30
37
―
45
180L
200L
Rated Output Power
（kW）
2P
75
―
90
―
110
―
132
―
160
―
4P
―
75
―
90
―
110
―
132
―
160
6P
―
55
―
75
―
90
―
110
―
132
up to 375
Frame
No.
250S
250M
280S
280M
315S
Not
defined
225S
： Defined by JIS C 4210 ： 2010
： Defined by JIS C 4212 ： 2010
（existed from 1983）
（existed from 2000）
9
JIS C 4213：2014
Tolerance and efficiency distribution
Efficiency
Clarified in commentary
Efficiency distribution
A ： Perfect
Rated efficiency
Regulated efficiency
Tolerance
（IEC 60034-1）
B ： At least required by JIS C 4213
〔Every plots clear the tolerance〕
C ： Out of rule
D ： Out of rule
10
2. The obligation of Energy Users based on
the ECL
Energy users are requested to make reasonable efforts to reduce, energy consumption
intensity of their company as a whole or each factory etc. by 1% or more on an annual
average in medium- and long- term.
In addition, Major energy users specified by ECL are obliged to submit medium-to-long
term plans such as replacement to highly energy-efficient facilities. For preparation of
such plans, Government provides a guideline in which presenting practical names of such
highly energy-efficient facilities
Business operator （ex : Franchise
Manufacturing company
chain）
Head Quarter
Shop
Shop
Head Quarter
Factory
Sales office
2
4
1
3
Annual energy use（Crude oil equivalent）
８００㎘
＋ ８００
㎘
Annual energy use（Crude
oil equivalent）
Total １,９００㎘ ≧ １,５００㎘
Total １,８００㎘ ≧ １,５００㎘
６００㎘
＋ １,２００㎘ ＋
１００㎘
Specified Business Operators
２００㎘
＋
Specified Chain Business Operators
These designated energy management company must allocate from 1 to 4 specified
engineers depend on usage amount.
11
Business sectors and obligations
Change of designated Energy management factories （Industrial sector and commercial
sector）.
Number of factories
≒ 5 times.
Type2（Commercial sector）
3,647
Type1（Commercial sector）
2,082
Type2（Industrial sector） 3,853
Type1（Industrial sector） 5,063
Total
14,645
(Fiscal year)
Source：Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry 2011.
So many Users in Japan have medium-to-long term plan to reduce energy use,
and that is inspected and controlled by specified engineers.
12
Changes in Final Energy Consumption
ECL made good effect to reduce energy saving.
Energy / GDP Index 1979 ： 4.0 → 2011 ： 2.8
Energy
（1018J）
18
GDP
(Trillion Yen)
600
GDP
1973－2011FY
2.4 times
16
1.9 times
Transportation sector
ECL start
12
400
16.4%
8
9.2%
Growth
（1973 →2011FY）
500
14
10
GDP
Commercial sector
2.8
times
300
2.1
times
Residential sector
8.9%
2.4
times
200
6
4
0.9 times
Industrial sector
65.5%
100
2
0
73
75
80
85
90
95
00
05
0
11 （Fiscal year）
Source: Comprehensive Energy Statistics and Annual Report on National Account
Note: As the statistical method of Comprehensive Energy Statistics was revised, it should be noted that the
statistical method of the values in and after FY1990 is different from that of the values before FY1990.
13
Estimated
Energy-saving effect
Reference 1
There is potential of energy conservation 155 （hundred million kWh）=15.5 TWh in the case of IE3.
Annual consumption electric energy
Pump
＊
＊
＊
Energy saving effect
Standard
JIS C4212
IE3
Hundred
million kWh
Hundred
million kWh
Hundred
million kWh
CO2 effect-saving
JIS C4212
Hundred
million kWh
IE3
Effect
proportion
Hundred
million kWh
JIS C4212
Effect
proportion
IE3
Ten thousand-t.CO2
2,805
2,755
2,713
49.8
1.8%
92.0
3.3%
169
313
Compressor
778
778
778
0.0
0.0%
0.0
0.0%
0
0
Blower
885
865
851
19.7
2.2%
33.7
3.8%
67
115
Transporting machine
185
180
176
4.9
2.7%
8.9
4.8%
17
30
Power transmission
device
108
103
101
4.8
4.5%
7.3
6.7%
16
25
Metalworking machine
332
326
321
6.4
1.9%
11.6
3.5%
22
39
Textile machinery
26
25
24
1.0
4.0%
1.5
5.8%
3
5
Refrigerating machine
151
151
151
0.0
0.0%
0.0
0.0%
0
0
Refrigerating machine
application products
160
160
160
0.0
0.0%
0.0
0.0%
0
0
5,429
5,343
5,275
86.7
1.6%
155.0
2.9%
295
527
Total
・The CO2 exhaust unit requirement is calculated as target unit requirement 0.34kg-CO2/kWh for The Federation of Electric Power Companies from fiscal year 2008 to 2012.
・Source ： Energy conservation equipment introduction promotion guidance business in 2009 fiscal year. Investigation business report like the energy
consumption equipment realities etc. Institute of Applied Energy (JP), 2009
＊:Out of count because of top runner facilities．.
14
Next step and Conclusions
Next step
The rule for Top runner products have to be revised every 3 to 4 years, they
could improve efficiency or expand coverage. Top runner motor also will be
studied again after 2015.
Conclusions
The regulation of Top runner motor is on schedule to start April 1st 2015. It has a
potential to reduce 15.5 TWh/a electricity. It saves 5.3 Mton/a CO2 or more
greenhouse gas.
Japan makes a new commitment to reduce greenhouse gas by 3.8% from 2005
until 2020. The reduction amount would be 51 Mton-CO2. Top runner motor is an
excellent way to achieve this commitment.
15
Thank you for your attention!!
References
1. JIS C 4213(2014) Low-voltage three-phase squirrel-cage induction motors – Lowvoltage top runner motor
2. Takeshi Obata, The Japan Electrical Manufacturer’s Association(JEMA), Japan,
Japan’s new motor standards and top runner scheme. Motor summit 2012
3. Takeshi Obata, The Japan Electrical Manufacturer’s Association(JEMA), Japan,
Motor drive and Energy Conservation Activities in Japan, EEMODS’2011
4. Energy conservation equipment introduction promotion guidance business in 2009
fiscal year. Investigation business report like the energy consumption equipment
realities etc. Institute of Applied Energy (JP), 2009
16