Medium Voltage Motors

Introduction:An explosive atmosphere is one where a mixture with air under atmospheric conditions of flammable substances in the form of gas, vapour or mist, exists in such proportion that it may explode due to excessive temperature, arcs or sparks. Flameproof motors were once manufactured with an enclosure constructed in such a manner that any explosion inside is not capable of igniting an explosive atmosphere outside the enclosure and the surface temperature is safe enough not to ignite the outside explosive atmosphere.Features:The winding insulations system is class F in accordance with IEC 85.All rotors are dynamically balanced with half key to ensure normal class of vibration level as per IEC®* 60034-14. Motors can be wound for any voltage from up to 6.6KV and for 50 Hz frequency with preferred voltage of 415V, 690V, 3300V, 6600V.Motors are suitable for operation ±10% voltage variation and ±5% frequency variation with permissible combined variation of 10%.Noise level for KF series flameproof motors conforms to the requirement of IEC 60034-9.All standard motors are suitable for withstanding mechanical over speed of 120 % for 2 Minutes.Specification:Frame: IEC 280 to IEC 450Power Rating: upto 750 kWVoltage: 3.3KV / 6.6KVFrequency: 50Hz +- 5%Pole: 2 to 8Application:Mining, Oil & Gas, Compressor Drive, Blower

Introduction:High Voltage TEFC Flowpak motors are part of an integrated range of induction machines, manufactured in a modern production facility.Flowpak is a range of totally enclosed fan-cooled cage induction motors available horizontally or vertically mounted for supply voltages up to 6.6 kV, outputs up to 800 kW. Flowpak range has a frame size with shaft center heights 280, 315, 355, 400, 450 & 500 mm. Standard designs cover 2 to 10 pole speeds, and all sizes of speeds are available with grease lubricated bearings.Features:High efficiency - upto 96% Low noise level (MSPL) - upto 85 dB (A) at 1 mt. distance with silence arrangements.Low starting current - upto 550% for 4 Pole.High torque - 80% Voltage Starting on load "square low" drives.High flexibility – a detailed study of market requirements.Low Cost - Internationally Competitive.Specifications:Frame: IEC 280 to IEC 560 Power Rating: upto 1.5 MW Voltage: 3.3KV / 6.6KV / 11KV Frequency: 50Hz +- 5% Pole: 2 to 14  Applications: Pump, Compressor Drive, Fan, blower, Conveyor & dredging application.

Introduction:Introducing the TEEPAK TETV Motors High Voltage Induction Motors – robustly constructed with steel frames, these motors ensure durability and reliability. They feature a uniform internal cooling circuit for efficient heat dissipation, allowing them to perform consistently even in demanding conditions. Smaller ratings benefit from axial cooling, while larger ratings utilize both radial and axial ventilation for optimal cooling. The motors adhere to basic mounting dimensions as per industry standards, making installation easy and seamless. TEEPAK TETV Motors are designed to enhance productivity and meet the highest industry standards. Trust in their exceptional construction, uniform cooling circuit, and versatile ventilation options to elevate your industrial operations.Features:Class ‘F’ insulation system, both Resin rich & Resin poor (VPI) varieties available.Rotors are dynamically balanced.Rotor bars are brazed with end rings by One Shot Brazing process.Environmentally friendly motors to meet all DrivesFault tested Phase Segregated Terminal box.RTD, BTD, Dial type Temperature indicator available.Separate Terminal Box available for Neutral point, RTD, and BTD termination purpose.Provision for Magnetic Slot Wedge to improve Efficiency, Power Factor and improve Electromagnetic noise.Provision for special Epoxy paint system.Specifications:Frame: IEC 400 TO IEC 1000 Power Rating: upto 4 MW Voltage: 3.3KV / 6.6KV Frequency: 50Hz +- 5% Pole: 2 to 14 Degree of Protection: IP 55Ambient: 45 °CApplications: Pump, Compressor Drive, Fan, Blowers, Conveyor, paper plant, Crushers, Mills etc.

Introduction:RW/CW SPDP Low voltage slipring induction motors are designed for heavy duty use with a driven machine imposing overloads and severe mechanical shocks and vibrations. Because of optimum utilization of materials, with improved ventilation techniques the motors are 10 – 15% lighter in weight and yet more rugged because of their inherent special construction. Because of the high Pull-Out Torque and inherent thermal margin kept for high slip operation (with suitable external resistance), these motors are ideally suited for rerolling mills and cane cutter/cane crusher/cane leveler/cane fiberize applications pertaining to sugar industries. Features:Design for Heavy duty application.Accommodate severe mechanical shocks & vibration. Improved ventilation technique. High Pullout Torque. Suitable for demanding applications.Inherent thermal margin leads to High Performance.Compliance with IEC Class IV duty.Easy access to brush gear sliprings.Specifications:RW Frame Sizes: RW89 to RW 168 CW Frame Sizes: IEC 450 TO IEC 710 Power Rating: 90kW to 2000 kW Power Supply: AC 3 Phase , 415V+/- 10%, 50 Hz +/- 5%;Pole: 6 to 12 Protection: IP21, IP23 (IS 4691) Insulation Class: Class F with temperature rise limited to class B Ambient Temperature: 45°CApplications:Rolling mills and cane cutter/cane crusher/cane leveler/cane fiberizer applications.

Introduction:One of India’s most modern motor factories, incorporating extensive CAD facilities with over 50 years of experience in the design and application of induction motors, enables Marathon to offer the benefits of proven solutions.Features:Marathon has over 2500 MW installed world-wide.Highest available efficiency - rapid payback.High power factor - low power cost.Resivac VPI insulation system for total winding reliability.Highest quality - lowest maintenance costs.Low Noise Level - better performance than IS:12065.Low vibration level - conforms to IS:12075.Compliance with National and International Standards.Variable speed drive compatibility.Slipring version available.Specifications:Frame: IEC 315 to IEC 710 Power Rating: upto 5 MW Voltage: 3.3KV / 6.6KV / 11KV Frequency: 50Hz +- 5% Pole: 2 to 14 Air-cooled CACA IC 0161, Water-cooled CACW IC 8A1W7Applications: Air Compressor in power plant/ steel plant, Fan & blower motors, Conveyor motors, paper plant, crushers motors

Introduction:With over 50 years of engineering expertise and one of India’s most advanced motor manufacturing setups, Marathon Electric presents the UNIPAK II CACA (TEAAC) High Voltage AC Induction Motors — tailored for heavy-duty industrial applications and performance that stands the test of time. Features:Power Range: Up to 4000 kWRobust Design Life: Designed for 20 years at 1000 starts/yearBuilt for Demanding Applications: Low vibration (IS:12075), low noise (IS:12065)Global Compliance: Meets IEC 34 & other international standardsHigh Efficiency & Power Factor: Lower energy cost, quicker ROIMaintenance-Friendly: Factory-set air gaps, low maintenance bearingsIP55 Protection: Superior safety in harsh environmentsVariable Speed Compatible Specifications:Voltage: Up to 11kV | 50/60HzCooling Type: CACA (IC 0161), CACW (IC 8A1W7), IC01 (open ventilated)Mounting: Horizontal Foot / VerticalFrame Size: 315 mm to 710 mm shaft center heightInsulation Class: F Class with RESIVAC VPI systemBearings: Rolling/Plain | Minimum 40,000 hours bearing life (L10h)Speed Options: All poles from 2 to 14, VSD compatibleShaft Options: Parallel, tapered, or double-ended as per requirementStandard Compliance:IS:325, IS/IEC 60034, IS:4691, IS:8223International equivalents: VDE (Germany), CEI (Italy), NEN (Netherlands), etc. Applications:Cement & Steel PlantsOil & GasPower Generation (Captive Plants)HVAC & Large Ventilation SystemsMarine & OffshoreCrushers, Fans, Blowers, Mills & Compressors