- Catalogs
- Dalian Dalmo Electric Motor Co. Ltd
- D1C and D1A series electric motor
D1C and D1A series electric motor
D1C and D1A series electric motor
The document outlines the specifications and standards compliance for DALMO electric motors, specifically the D1A and D1C series. These motors are engineered for challenging environments such as mining, petrochemical, marine, or tropical conditions, ensuring durability with proper maintenance.
Materials and Construction
D1A motors feature aluminum stator frames and terminal boxes with cast iron endshields, while D1C motors are constructed entirely from cast iron. Both series are designed for high efficiency and minimal temperature rise, promoting a long service life.
Standards Compliance
The motors adhere to international standards including IEC, AS, and BS, addressing cooling methods, mounting arrangements, duty ratings, and service conditions. They also comply with European "CE" marking requirements.
Protection and Mounting
All DALMO motors are protected to IP55, with options for higher ratings. They offer various mounting configurations such as B3, B5, and B14, providing installation flexibility.
Performance and Efficiency
The motors are available in various power ratings and configurations, with performance data for both 2-pole and 4-pole motors. They feature high starting torques and low starting currents due to a double cage rotor design.
Bearings and Noise Levels
High-quality bearings from SKF or NSK are used, with options for special arrangements. Noise levels are maintained within standard limits, generally below 80 dB(A) for small motors and 85 dB(A) for larger ones.
Additional Features
Optional features include force ventilation systems, rainhoods, labyrinth seals, RTDs, thermostats, and anticondensation heaters. Customizations such as non-standard flanges, shaft extensions, and rotor designs are available.
Performance Data
The document provides detailed performance data for various motor models, specifying parameters like rated output, speed, current, efficiency, power factor, torque, and noise levels.
The document details specifications for various electric motor frames, including bearing types, dimensions, and recommended greases. It lists frame numbers with corresponding bearing codes, dimensions (d, D, B), and operational parameters like speed limits and regreasing intervals.
Procedures
1. Recommended greases vary by frame size: SKF LGMT 2 for frames 71-132 and LS3 or Shell Alvania R3 for frames 160-355.
2. Vertical motors require greasing at half the interval of horizontal motors.
3. "Sealed for life" bearings should be replaced rather than regreased, although shield removal and repacking is possible but not recommended.
4. Regreasing intervals should be reduced if operating temperatures exceed 70°C.
Standards and Recommendations
The document stresses the importance of using the correct grease and maintaining appropriate regreasing intervals for optimal motor performance. It also advises caution with high operating temperatures and sealed bearings.
Data Summary
The document includes tables detailing bearing and oil seal data for various motor frames, specifying dimensions and types for both DE (Drive End) and NDE (Non-Drive End) bearings. It also provides oil seal dimensions for different frame sizes.
Notes
The document concludes with a disclaimer that DALMO reserves the right to change performance data and dimensions without notice, indicating that the information is for reference only.
Catalog excerpts
D1C and D1A series electric motor ALUNINUM ELECTRIC MOTORS
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STANDARDS COMPLIANCE DALMO motors are designed and manufactured f t d to t meett the th mostt arduous d service conditions, such as mining, petrochemical, marine or tropical environments. The motors are made from high quality materials and workmanship. With proper maintenance these motors will operate for 15 years or more, even in the toughest conditions. di i INTERNATIONAL STANDARDS interantional Electrotechnical Commission-IEC 34 and IEC 72. Australian Standards-As 1359. British Standards-Bs 5000 and BS 4999. The requirements for European "CE" marking. INTRODUCTION AND LIST OF PARTS AS 1359-0.BS...
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STANDARDS COMPLIANCE DEGREES OF PROTECTION First Numeral Second Numeral Protection against contact and ingress of foreign bodies. Protection against hazardous "live"parts and moving mechanical parts Protection against water 5.Ingress off ddust is i not totally prevented, but dust shall not interfere with the satisfactory operation of equipment. A probe of 1 1mm di diameters t shall h ll nott penetrate the enclosure. 55.Water W projected j d in i jets j against the enclosure from any direction will have no harmfull effects 6.Water projected in power jets shall have no harmful effects Dust pprotected...
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STANDARDS COMPLIANCE MOUNTING ARRANGEMENTS FOOT MTG HORIZ ELECTRIC MOTORS
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GENERAL SPECIFICATIONS CONNECTION DIAGRAMS Three Phase motors with cage rotor Star connection Connection to star-delta starter Delta connection Multi-speed motors in Dahlander connection(Tapped ti (T d Winding). Wi di ) Multi-speed motors with 2 separate t Wi Windings. di High speed High speed ELECTRIC MOTORS
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GENERAL SPECIFICATIONS D1C motors cast iron stator endshields and terminal boxes. D1A motors have aluminium stator frames, terminal boxes and cast iron endshields. D1A motors have bolt on feet which can be located so that the terminal box can be on top or on either side. IP55 as a minimum-higher ratings are available on request. Care must be taken when mounting motors in a non standard mounting position to maintain the IP rating of the motor. Cooling to ICO141 up to 355 frames. All motors are available in B3(IM1001), B3/5 (IM2001), and V1 (IM3011) configuration. All standard motors up to 280...
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GENERAL SPECIFICATIONS Special bearing arrangements can be accommodated d t d suchh as fitting fitti angular l contact, t t or 4 point contact QJ bearings, for thrust loads. All bearings are protected from the external environment with oil seals on the drive and on the drive and non drive end. Labyrinth seals can be fitted as an option for external protection of bearings for 160 frames and above. Standard noise levels, (sound pressure at 1 metre), are well within the requirements of most standards, and are generally below 80 dB (A) for small motors and 85 dB (A) for large motors. All standard...
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Unless otherwise stated, D1A and D1C data are the same. INL=No Load Current TST=Locked Rotor Torque IFL=Full Load Current IST=Locked Rotor Current TM=Maximum Torque TFL=Full Load Torque ELECTRIC MOTORS
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PERFORMANCE DATA 4 POLE-1500 RPM SYNCHRONOUS SPEED 50 Hz MOTOR TYPE D1A632-4 FULL LOAD TST TPU TORQUE TFL TFL N.m 1.25 2.2 2 Unless otherwise stated, D1A and D1C data are the same. INL=No Load Current IFL=Full Load Current IST=Locked Current S oc ed Rotor oto Cu e t TST=Locked Rotor Torque TPU=Pull Up Torque TM=Maximum a u Torque o que TFL=Full Load Torque ELECTRIC MOTORS
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PERFORMANCE DATA 6 POLE-1000 RPM SYNCHRONOUS SPEED 50 Hz MOTOR TYPE FULL FULL RATED LOAD INL IFL IFL IFL IST EFFICIENCY POWER FACTOR LOAD TST OUTPUT SPEED 400V 380V 400V 415V IFL 100%FL 75%FL 50%FL 100%FL 75%FL 50%FL TORQUE TFL kW r/min A A A A N.m Unless otherwise stated, D1A and D1C data are the same. INL=No Load Current TST=Locked Rotor Torque IFL=Full Load Current IST=Locked Rotor Current TM=Maximum Torque TFL=Full Load Torque ELECTRIC MOTORS
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Unless otherwise stated, stated D1A and D1C data are the same. same INL=No Load Current TST=Locked Rotor Torque IFL=Full Load Current TPU=Pull Up Torque IST=Locked Rotor Current TM=Maximum Torque TFL=Full Load Torque ELECTRIC MOTORS
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ELECTRIC MOTORS
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ELECTRIC MOTORS
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ELECTRIC MOTORS
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DIMENSIONS Frame
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BEARING SIZES AND REGREASING INFORMATION Standard: "SEALED FOR LIFE" DOUBLE SHIELDED ZZ BEARINGS. MOTOR CLEARANCE OR C3 NOT REGREASABLE BEGREASABLE OPEN BEARINGS C3 WITHOUT AUTOMATIC GREASE RELIEF IEC FRAME SIZE BEARING DRIVE END (D.E.) QUANTITY OF GREASE IN BEARING CHAMBER IF OPEN BEARINGS ARE FITTED GRAMS REGREASING PERIOD HOURS FOR OPERATING TEMPERATURE UP TO 70 C NOTES: 1 Recommended greases - Frames 71-132 SKF LGMT 2 Frames 160 - 355 LS3 or Shell Alvania R3 2 Vertical motors should be greased at half the time specified above for horizontal motors. 3 It is recommended that "Sealed for life"...
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BEARING & OIL SEAL DATA BEARING DATA DALMO reserves the right to make changes to the performance data and dimensions in this brochure without notice. Th
Open the catalog to page 17All Dalian Dalmo Electric Motor Co. Ltd catalogs and technical brochures
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