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High Performance Motors

Motors for Textile Industry

Industrial Motors

	Energy Efficient Motors		High Performance Motors
	Savings using High Performance motor		Most Suitable for Textile Industry
	Indian Standard (IS 12615 : 2004) For Energy Efficient Motors		IEEMA Standard – Performance Characteristics

Energy Efficient Motors

Generally, the term energy efficient motor refers to maximizing the product of efficiency and power factor of a motor.
i.e. Max (efficiency X power factor)

High Performance Motors

This class of Energy Efficient motors has higher efficiency and higher performance values (speed, torque).
>> Motors with least energy consumption
>> Higher speed (rpm)

Most Suitable for Textile Industry

High Performance motors are most suited to Textile Industry where motors are required not only to consume less energy but also, at the same time, give increased production.
Hence, High Performance motors have twin advantage:
>> Savings in power cost
>> More production*

Indian Standard (IS 12615 : 2004) For Energy Efficient Motors

Rated Output(kW)

Speed at rated output (Min) (rpm)

Full Load Current

Nominal Efficiency

(Present)

For
eff2

For
eff1

Breakaway Torque (as a percentage of full load torque) (Min)(%)

1440

89.4

91.8

160

18.5

1440

90.0

92.2

160

1440

90.5

92.6

160

1450

91.4

93.2

160

1450

92.0

93.6

160

IEEMA Standard for Energy Efficient Motors

This standard is prepared with “energy conservation” as the major requirement. It follows the philosophy of categorizing motor efficiencies at three levels – i.e.
  >> Low efficiency – (eff 3)
  >> Improved efficiency – (eff 2)
  >> High efficiency – (eff 1)

To conform to this standards and eligible to be considered as energy efficient, the motors shall meet the minimum norms of eff 2.
H
High performance motors should have efficiency conforming to eff 1.

IEEMA Standard – Performance Characteristics

Rated Output(kW)

Full Load Speed (Min) (rpm)

Full Load current (Max) (A)

Efficiency (equal to or above)

(Present)

For
eff2

For
eff1

Breakaway Torque in terms of full load torque (Min) (%)

1440

43.0

90.5

92.6

160

1450

56.0

91.4

93.2

160

1450

69.0

92.0

93.6

160

1460

84.0

92.5

93.9

160

1460

99.0

93.0

94.2

160

Savings using High Performance motor

Load	Motor type (40kw)	Effy (%)	Input Power (kW)	Unit in Lakhs/year (kWhr)	Annual Saving (Rs)
100%	EE	92.70	43.15	3.668	32,500
100%	Hi-Per	94.70	42.24	3.590	32,500
75%	EE	92.63	32.38	2.752	18,921
75%	Hi-Per	94.18	31.85	2.707	18,921
50%	EE	91.60	21.83	1.856	12,495
50%	Hi-Per	93.10	21.48	1.826	12,495

Assumptions:

Power cost is assumed to be Rs 4.2 per unit
Motor utilization is assumed to be : 8500 hours per annum

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