SERIES Energy Efficient TEFC Induction Motors

Transcription

1 SERIES Energy Efficient TEFC Induction Motors

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3 SERIES Induction Motors Crompton Greaves series belongs to a family of state-of-the-art energy efficient totally enclosed fan cooled (TEFC) 3 phase Induction motors with cage rotor construction. An almost flat efficiency curve is achieved by effectively utilizing materials (special grades of materials) while minimizing losses. In conjunction with thermally optimized frames, cooling fans are designed with low noise profiles. Higher efficiencies at part loads result in greater energy savings making it suitable for use when load variations exist. The components are optimized using finite element analysis of electromagnetic, structural, thermal and air flow, which ensures better stress distribution and high structural rigidity. Adequate steps have been taken in the electrical design process to make sure that the natural frequencies of stator teeth and core remain well away from the supply frequency. Appropriate selection of tolerances and fits in addition to good manufacturing processes facilitate high level of quality. The rotor and fans are separately balanced on precision balancing machine to very stringent grades. All these put together, result in extremely low vibration levels. Efficiency (%) Value For Money 580kW, 6600V, 2 Pole, 400 Frame Motor Efficiency Pattern Load (%) Salient Features Energy efficient fan cooled Induction motors (IM) Cast Iron / Fabricated Steel frame High efficiency levels even at part load Good power factor Low starting current Low noise levels Low vibration levels Solid deep rotor bars arranged in single cage construction Special double cage as per driven equipment requirement IP55 Degree of protection Class 'F' insulation with temperature rise limited to class B' Vacuum pressure impregnation (VPI) insulation system Axially ventilated rotor design Antifriction bearings Dynamically balanced rotors as per ISO:1940 Grade 2.5 Machined stator Ease of maintenance, with simplified component sub-assemblies Stringent quality checks Motors for all applications Enclosure SERIES :Totally Enclosed Fan Cooled (TEFC) - IC411 NG Series Output Chart Power Voltage Number of Poles Mounting : kW (up to 2000kW*) : V (up to 11000V*) :2-6 (up to 12 Pole*) :IM B3, IM B35, IM V1 Frame Size :IEC ( *) Standards Range includes * Available on request :IEC / IS:325 :Motors Suitable for Hazardous area, Ex e, Ex n and VFD Applications. * Hz Pole 60Hz

4 TEFC - 3 Phase Squirrel Cage Induction Motors Performance Data - 690V, 50Hz Item Code Description NG 315 S H L2 A NG Shaft Height Frame Length Mounting Energy Efficient TEFC IM 315 / 355 / 400 / 450 mm S (Small) / L (Large) H - Horizontal (B3) V - Vertical (V1) B - Foot Cum Flange (B35) Voltage Design Reference L2-690V, 50Hz M1-3300V, 50Hz M2-6600V, 50Hz A / B / C / D / E Pole 2 / 4 / 6 Torque Current Power Factor Efficiency Item Code Output Speed Tn Ts/ Tn Tmax/ Tn In Is/ In lo 100% 75% 50% 100% 75% 50% Rotor Weight kw HP rpm (N-m) (%) (%) (A) (%) (A) load load load load load load Inertia (kg) 2 (kgm ) SH L2A * SH L2B * SH L2C * Pole SH L2A * LH L2B * LH L2C * LH L2D * SH L2A * SH L2B * LH L2A * LH L2B * SH L2A * SH L2B * SH L2C * Pole SH L2A * LH L2B * LH L2C * LH L2D * SH L2A * LH L2B * LH L2A * LH L2B * LH L2C * Pole SH L2A * SH L2B * SH L2C * SH L2A * LH L2B * LH L2C * SH L2A * SH L2B * LH L2C * LH L2D * LH L2A * LH L2B * LH L2C * '*' marked figures are inclusive of IEC/IS tolerance. Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40 C. The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is delta connected. The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.

5 TEFC - 3 Phase Squirrel Cage Induction Motors Performance Data V, 50Hz Torque Current Power Factor Efficiency Item Code Output Speed Tn Ts/ Tn Tmax/ Tn In Is/ In lo 100% 75% 50% 100% 75% 50% Rotor Weight kw HP rpm (N-m) (%) (%) (A) (%) (A) load load load load load load Inertia (kg) 2 (kgm ) SH M1A * SH M1B * SH M1C * Pole 2 Pole SH M1A * LH M1B * LH M1C * LH M1D * LH M1A * LH M1B * LH M1C * LH M1D * LH M1A * LH M1B * LH M1C * SH M1A * SH M1B * SH M1C * SH M1A * LH M1B * LH M1C * LH M1D * SH M1A * SH M1B * LH M1C * LH M1D * LH M1E * LH M1A * LH M1B * LH M1C * LH M1D * LH M1E * SH M1A * SH M1B * SH M1A * LH M1B * LH M1C * LH M1D * Pole SH M1A * LH M1B * LH M1C * LH M1D * LH M1E * LH M1A * LH M1B * LH M1C * LH M1D * LH M1E * '*' marked figures are inclusive of IEC/IS tolerance. Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40 C. The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is star connected. The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.

6 TEFC - 3 Phase Squirrel Cage Induction Motors Performance Data V, 50Hz Torque Current Power Factor Efficiency Item Code Output Speed Tn Ts/ Tn Tmax/ Tn In Is/ In lo 100% 75% 50% 100% 75% 50% Rotor Weight kw HP rpm (N-m) (%) (%) (A) (%) (A) load load load load load load Inertia (kg) 2 (kgm ) SH M2A * SH M2B * SH M2C * Pole SH M2A * LH M2B * LH M2C * LH M2D * SH M2A * LH M2B * LH M2C * LH M2D * LH M2A * LH M2B * LH M2C * SH M2A * SH M2B * SH M2C * Pole SH M2A * SH M2B * LH M2C * LH M2D * LH M2E * SH M2A * SH M2B * LH M2C * LH M2D * LH M2E * LH M2A * LH M2B * LH M2C * Pole SH M2A * SH M2B * SH M2C * SH M2A * LH M2B * LH M2C * LH M2D * SH M2A * SH M2B * LH M2C * LH M2D * LH M2E * LH M2A * LH M2B * LH M2C * LH M2D * '*' marked figures are inclusive of IEC/IS tolerance. Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40 C. The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is star connected. The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.

7 SERIES IM-B3 Mounting 3300V / 6600V 690V FRAME POLE A B C D E H HD AD AE AE LD L S S L S L L All dimensions in mm SERIES IM-V1 Mounting FRAME M N P S D E T AD AE L All dimensions in mm

8 For more information: Visit us at: Ref. - CG / LRM - India / 2013 / NG Series Leaflet / R00 / July 13 Due to continuous product improvements and its incorporation, CG reserves the right to change the design, technical specifications and dimensions without prior notice.