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  • Users: elinBG
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  1. elinBG

    Adjacent pole, skip pole and consequent pole

    Hello, I am still trying to get some official information about the winding of the compressor mentioned in this thread: http://www.eng-tips.com/viewthread.cfm?qid=359153 When reading several books, I noticed three strange type of connection diagrams: Adjacent pole Skip pole Consequent pole...
  2. elinBG

    Part-winding connection

    Hello, How is called this connection I found it on an semi-hermetic compressor it is used for "part-winding start". How does it work? Any information on it will be great www.eldvigateli.com
  3. elinBG

    Unfamiliar Bearings T7014CTSULP3 (manuf. RHP)

    Hello, At our repair shop we just received an water cooled italian motor for repair, it is used for stone cutting. Motor Nameplate - Motor nameplate Our bearing suppliers here in Bulgaria doesn't sound confident in knowing what exactly are these bearings. At the DriveEnd there is set of 2...
  4. elinBG

    Unfamiliar Bearings T7014CTSULP3 (manuf. RHP)

    Hello, At our repair shop we just received an water cooled italian motor for repair, it is used for stone cutting. Motor Nameplate - Motor nameplate Our bearing suppliers here in Bulgaria doesn't sound confident in knowing what exactly are these bearings. At the DriveEnd there is set of 2...
  5. elinBG

    Spiral Welding shaft repair?

    Hello, In several websites for electric motor and pump repairs I found a shaft repair method called spiral welding technique http://www.eriks.co.uk/Spiral-Welding/700 http://www.pumpgroup.co.uk/repairs/engineering/spiral-weld-process/ If anybody knows something regarding this method, please...
  6. elinBG

    DC motor rotor failure

    What is the cause of this failure? Thank you! www.eldvigateli.com
  7. elinBG

    Induction hot plate as a cheaper solution for bearing mounting

    Hello, Do you think that induction hot plate ( http://www.ebay.com/bhp/induction-hotplate ) can be used as a tool for heating the bearings instead of the expensive SKF tools ( http://www.skf.com/binary/12-35761/tih100m_datasheet_e.pdf )? If yes please tell me your pros and cons! Next question...
  8. elinBG

    Are Xylem/Flygt the best?

    Hello, In our repair shop we do repairs of a lot of FLYGT pumps,I belive that your answer will be "yes", but actually I am looking for an alternative of FLYGT. Quality pumps that can replace them at good price. The problem is that FLYGT have only one distributor in my country and the prices we...
  9. elinBG

    Old AEG catalogue

    Hello, I am looking for some dimensions of old AEG, 6kV motors 1. AEG type AR450L 6/8 KB. (1972) 280kW/8p. 2. AEG type AR560 4/8 3PH. (1972) 630kW/8p I wonder if somebody have catalogues from old AEG motors and can help me? Thank you in advance!
  10. elinBG

    Shaft and housing fits and tolerances

    Hello, Can somebody help me understanding the letters (j5,k5,J6 and etc) for recommended fits of bearings? http://www.skf.com/binary/68-3734/017_0212_tcm_12-3734.jpg - This are the standard fits http://www.skf.com/skf/productcatalogue/jsp/viewers/tableViewer.jsp?tableName=1_0_t26 - These are...
  11. elinBG

    Electric motor winding stripping/cutting

    Hello, Do you think this tool can be used for cutting of the electric motor winding before removal? http://www.youtube.com/watch?v=_RUylSDCZoo I tried with air-chisel but I dont like it. Regards
  12. elinBG

    87Hz Delta Motor

    Hello! Last week in our workshop came a motor with a "strange" nameplate (attached you will find a photo of it). I will be glad if someone wants to discuss this "technique"
  13. elinBG

    Encoder replacement of brushless servomotor

    Hello, In our repair shop a customer brought SIEMENS brushless servomotor with permanent magnet rotor. They disassembled the whole motor, but only the brake seemed to had a problem, we rewind it and since then the system works again, but now the motor is heating, 90 degrees Celsius frame...
  14. elinBG

    Space-heater and impregnation

    Hello, We are going to put a space-heater in the winding, but we are arguing about when it should be placed on the motor winding. I think it should be placed over the winding after the impregnation of the repaired motor. Because if it is impregnated together with the winding it will heat the...
  15. elinBG

    Does the slip-ring induction motor has a bigger NO-LOAD CURRENT, than the squirrel cage?

    title?

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