Related Manuals for GE GEH-5304A
Summary of Contents for GE GEH-5304A
- Page 1 GEH-5304A GE Industrial Systems Instructions Direct Current Motors & Generators Type CD Frames 2512AT, 2513AT Frames 2812AT, 2813AT...
- Page 2 GEH-5304A These instructions do not purport to cover all of the details or variations in equipment nor to provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the General Electric Company.
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Page 3: Table Of Contents
Inspection After Starting ... 18 Bearings ... 18 Noise and Vibration... 19 Inspection After Short Time In Service ... 19 Maintenance... 19 Disassembly ... 20 Reassembly ... 20 Bearings... 21 Replacement of Bearings ... 21 Table of Contents GEH-5304A Page... - Page 4 Insulation Resistance Measurement... 26 Cleaning of Windings ... 27 Oily Dirt ... 28 Drying of Windings ... 29 Service Shop Cleaning... 29 Repair ... 29 Renewal Parts ... 30 Storage of Renewal Parts ... 30 Commutator Check Chart ... 32 GEH-5304A Page...
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Page 5: Introduction
Should further infor- mation be desired or should particular problems arise which are not covered sufficiently for the purchaser’s pur- poses, the matter should be referred to GE Industrial Systems. RECEIVING The equipment should be placed under adequate cover immediately upon receipt, as packing coverings are NOT suitable for out-of-doors or unprotected storage. -
Page 6: Handling
Motor generator set bases have lifting holes, to be used with spreader bars or hooks. Care must be taken in handling to avoid twisting bases. GEH-5304A... -
Page 7: Installation
Motors for Class I locations must have leads sealed at the frame exit and an explosion-proof conduit box. See Sections 501-4 and 501-5. Motors for Class II locations must have leads sealed at the frame exit and a dust-ignition-proof conduit box. See Sections 502-4 and 502-5. Table 1 Typical Weights** Motor (Less Accessories) Armature GEH-5304A... -
Page 8: Mounting
Use a dial indicator at hub faces and rotate both units together 90 , 180 , 270 and 360 or measure the gap at each position by inserting a feeler gage. The reading should not vary more than 0.002”. Correct any vertical misalignment by shimming between the base and the foundation. GEH-5304A... -
Page 9: Alignment Procedure-Flexible Couplings, Self-Supporting Bases
The standard NEMA shaft extension is designed for belted loads. Dimensions are provided on the standard dimension sheets. A sliding base is available as an accessory to facilitate belt adjustment. Bearing Life Bearing life for belted drives is determined by calculating the radial load at the end of the shaft. GEH-5304A... - Page 10 Matched belts run smoother and last longer. Longer belt life results if the belts and sheaves are kept clean and the belts are prevented from rubbing against the belt guards or other obstructions. , lbs Description GEH-5304A...
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Page 11: Special Load Considerations
Pinion Drives While Kinamatic plied under suitable conditions. In addition to a radial load, some gears produce thrust load on the bearing. Complete details of the proposed gearing should be referred to GE Industrial Systems in all cases. Thrust Loads Due to the mounting position or type of drive arrangement, a thrust load may be applied to the motor shaft. -
Page 12: Inspection Before Starting
Power Supply Identification section are in common use. For operation of motors from rectified power supplies other than those given in this section, refer to GE Industrial Systems. A motor may, under some conditions, be operated from a power supply different from that indicated on the nameplate. - Page 13 Less Than Speed Life Factor 2.15 1.83 Table 3 1150 1500 2000 1.55 1.29 1.10 CD2512AT and CD2513AT Curve CD2812AT and CD2813AT Curve GEH-5304A 2500 3000 4000 5000 Frame Sizes Description Shaft Shaft Bearing Diameter Material Standard Standard (1-5/8) Standard Ball...
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Page 14: Power Supply Identificaiton
60 hertz input and no series inductance added externally to the motor armature circuit. The input AC voltage to the rectifier shall be 230 volts for 180 volt DC rat- ings. Table 4 Power Supply Available GEH-5304A... -
Page 15: Connections
Three digits indicating nominal line-to-line AC voltage to the rectifier Two digits indicating input frequency in hertz One, two or three digits indicating the series inductance in millihenries (may be zero) to be added externally to the motor armature circuit inductance. GEH-5304A... -
Page 16: Speed Limit Device
T1, T2, T3, T4, etc. A1, A2 B1, B2, B3, B4, etc. BH1, BH2, BH3, BH4, etc. BS1, BS2, BS3, BS4, etc. H1, H2, H3, H4, etc. P1, P2, P3, P4, etc. R1, R2, R3, R4, etc. GEH-5304A 30 VDC Amps 1.5 Amps Winding... -
Page 17: Ventilation System
When lubricated threads are used, reduce torque to 65% of the value shown. The torque values shown, when applied to bolts with lubricated threads, can cause excessive bolt tension and possible bolt breakage. Figure 1 GEH-5304A... -
Page 18: Accessory Mounting
(Refer to Alignment and Bearing Maintenance sections.) Table 7 Hex Head (C1C5) Grade 5 Medium Carbon Steel (Without Lubricant) Lb-Ft 10-12 13-17 18-23 24-30 33-40 60-75 80-100 120-150 160-200 210-260 280-350 GEH-5304A... -
Page 19: Noise And Vibration
National Electrical Code and consistent with sound local practices. Replace covers and protective devices before operating. Table 8 Maximum Amplitude (in Inches) (Peak to Peak) 3000-4000 incl. .001 1500-2999 incl. .0015 1000-1499 incl. .002 999 and below .0025 GEH-5304A... -
Page 20: Disassembly
Set machine on a flat, true surface to align feet on both brackets. NOTE: If Step 6 is not performed, distortion or breakage of brackets may occur during bolt-down of the motor. Torque four (4) nuts on CE bracket. Reinstall brushholders and engage brush springs. Replace all covers. GEH-5304A... -
Page 21: Bearings
15000 1750 10000 3000 5000 Table 10 Drive End Standard Ball Oversize Ball Basic Basic Brg. No. AFBMA Brg. No. 45BC03X3 50BC03X3 GEH-5304A Roller Bearing 18000 7500 5000 2500 Oversize Roller Basic AFBMA Brg. No. AFBMA 50BC03X3 50RU03X3 55BC03X3 55RU03X3... -
Page 22: Brushes
This can result in commutator damage and/or the need for excessive maintenance. If the application requires operation under these conditions, GE Industrial Systems will be pleased to suggest a change in brush grade or other measures to minimize the problem. -
Page 23: Brush Installation
Continue seating until brush face is 85% seated. Again, the motor must be thoroughly blown out after brush seating, the same as with sanding. Avoid inhaling carbon and seater dust. GE Industrial Systems recommends using a dust mask during sanding, seating and blowing or vacuuming. -
Page 24: Commutator
These silicone substances must be avoided to ensure proper motor performance. Commutator Diameters (In Inches) Frame CD2512AT CD2513AT CD2812AT CD2813AT Figure 2 Brush Assembly Table 12 Start Min. Wear 5.30 5.02 0.140 5.96 5.66 0.150 GEH-5304A... -
Page 25: Mechanical
Reapply new sealant (use Titeseal T20-66, light weight, GE Part No. 905A999AC009) to these areas and wipe excess sealant with a clean rag slightly dampened with mineral spirits. Do not use silicone sealants. When accessories such as brakes and ta- chometers are disassembled, it will be necessary to reseal at the accessory mounting face. - Page 26 GEH-5304A ues.
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Page 27: Testing Methods
Experience and judgement can be gained by careful observation and comparing results of visual in- spections with insulation resistance measurement. GE Service Shops have personnel who can inspect equipment and point out potential trouble areas. Their services can help build experience and judge- ment for future visual inspections. -
Page 28: Cleaning Of Windings
It is important to realize that when blowing out a machine, dirt may settle in a previously cleaned area and it may be necessary to repeat the cleaning process to ensure that a thorough job is done. Table 13 Multiplying Factor to Obtain Insulation Resistance at 40 C (104 F) 10.00 5.50 3.10 1.70 1.00 0.55 0.31 0.17 GEH-5304A... -
Page 29: Oily Dirt
Stoddard solvent has good solvency, but is flammable and moderately toxic. Before using any solvent, consult the Material Safety Data Sheet. Steam cleaning is not recommended because, as with liquid solvents, conducting contaminants may be carried deep into inaccessible areas resulting in shorts and grounds. GEH-5304A... -
Page 30: Drying Of Windings
Repairs should be made only by qualified personnel using the materials and processes for which the motor was designed. To protect the warranty during the warranty period, all repairs must be made in a GE Service Shop or approved repair facility. Many repairs can be easily performed with only assembly operations, if GE replacement parts are available. -
Page 31: Renewal Parts
RENEWAL PARTS Using genuine GE renewal parts assures continued high performance and the full benefits of the long operating life designed into your GE motor. Downtime can be minimized by having a protective stock of parts available for replacement. (Refer to Table 14.) The permanently attached nameplate on your GE motor displays the model and serial number, providing all the information needed for ordering. - Page 32 Table 14 Recommended Spare Parts Number of Duplicate Motors in Service 5-10 GEH-5304A More 10-20 Than 20...
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Page 33: Commutator Check Chart
The box chart above indicates the importance of selecting the correct brush and having the right operating conditions for optimum brush life and commutator wear. For additional information or help with carbon brush application or commutation problems. Contact your nearest GE Sales Office or Distributor. - Page 34 GEH-5304A Figure 3 Application Information for CD2512AT – CD2813AT Frames...
- Page 35 GEH-5304A Figure 4 Blower Unit, Commutator End Mounted for Use With CD2512AT – CD2813AT Frames...
- Page 36 GEH-5304A Figure 5 Dimensions, Air Openings for CD2512AT – CD2813AT Frames...
- Page 37 50V/1000 RPM 897A590-032 100V/1000 RPM 897A590-024 AN-DC Tach AN-DC Tach 20V/1000 RPM 50V/1000 RPM 36A167714AAG01 36A167714ADG01 36A167714AAG01 36A167714ADG01 GEH-5304A Static Pressure Inches of Water Enclosed Separately Ventilated 4.85 5.64 PY Tach Kit BC Tach Kit Less Tach Less Tach 36A171269AAG01...
- Page 38 GEH-5304A Figure 6 Accessory Mounting CD2512AT – CD2813AT...
- Page 39 GEH-5304A Figure 7 Accessory Mounting CD2512AT – CD2813AT...
- Page 40 GEH-5304A...
- Page 41 GEH-5304A Type CD Frames 2512AT – 2813AT DC Motors & Generators Figure 8 Type CD Frames 2512AT – 2813AT...
- Page 42 Publication No. E-Mail Publication Issue / Revision Date Address Fair Poor Additional Comments Do not know Comment GEH-5304A GE Industrial Systems Attn: Industrial Engineering Technical Publications Editor 2000 Taylor Street Fort Wayne IN 46801-2205 Fax: 1-219-439-3881 (GE Internal DC: 8*380-3881)
- Page 43 GEH-5304A Detach and fax or mail to the address noted above.
- Page 44 ……………………………………………….…………………Fold here and close with staple or tape………………………………….…………………. …………………………………………………..………….………………..Fold here first………………………………………………………………. GE INDUSTRIAL SYSTEMS INDUSTRIAL ENGINEERING TECHNICAL PUBLICATIONS EDITOR 2000 TAYLOR STREET FORT WAYNE IN 46801-2205 USA GEH-5304A Place Stamp Here...
- Page 45 GEH-5304A Document Revision History Rev # Date Author ISAAC # Description 12/14/99 Conversion from PageMaker.