GE KOTEF 72.5 Instruction Manual

Combined instrument transformer

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INSTRUCTION MANUAL - MIITR102
COMBINED INSTRUMENT TRANSFORMER
KOTEF 72.5...245
© GE Grid Solutions

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Summary of Contents for GE KOTEF 72.5

  • Page 1 INSTRUCTION MANUAL - MIITR102 COMBINED INSTRUMENT TRANSFORMER KOTEF 72.5...245 © GE Grid Solutions...
  • Page 2 Instruction Manual GE Grid Solutions Av. Nossa Senhora da Piedade, 1021 37504-358, Itajubá - MG – Brasil 07/28/21 Owner revision Date Prepared Approved © GE Grid Solutions...
  • Page 3 The supplied insulator can be made of porcelain, therefore, sudden movements that can cause damage due to cracks shall be avoided. © GE Grid Solutions...
  • Page 4: Table Of Contents

    Secondary terminals/Neutral Terminal ........................11 6.5. Terminal marking ................................11 OIL LEVEL INDICATOR ................................11 INSPECTION BEFORE FIRST ENERGIZING ........................11 MAINTAINENCE AFTER ENERGIZING ..........................12 10. PROPER DISPOSAL OF TRANSFORMERS COMPONENTS AFTER LIFESPAN ............ 13 © GE Grid Solutions...
  • Page 5: General Drawing

    4. Primary terminals: aluminum or copper 5. CT Headhousing (current transformer part) 6. Porcelain or composite insulator 7. Terminal box of secondary windings and cover 8. VT Tank (voltage transformer part) 9. Fixation Base General Drawing of KOTEF © GE Grid Solutions...
  • Page 6: Design And Construction

    All secondary windings are enclosed in an aluminum box which protects them An oil level indicator is provided and is against high frequency disturbances scaled to show the oil level over the while acting as a low voltage shielding © GE Grid Solutions...
  • Page 7: Cast Aluminum Tank

    H2, N…). In case of damages, the customer inspector in charge of receipt shall notify 2.7. External metallic parts GE and the insurance representative. All The external metallic parts do not contact information is indicated on require maintenance and they are shipment insurance documents.
  • Page 8: Unpacking

    Follow the instructions shown in the following drawings for lifting the unit. All cables or slings shall be kept in vertical position during lifting. recommended to lift the transformer slowly. © GE Grid Solutions...
  • Page 9: Storage

    (secured from movement) using maintained. Confirm that cushions of synthetic foam slightly bellows free internal compressed by the top cover. A movement and in a vertical position. © GE Grid Solutions...
  • Page 10: Assembly In The Structure

    The current ratio of the CIT can be single It is only used for transport. It cannot be with only one single bar, double or triple used as tube guide. primary ratio. Double or triple primary ratio can be easily changed by the user © GE Grid Solutions...
  • Page 11: Secondary Terminals/Neutral Terminal

    Make sure that the neutral terminal are done according to the specified of the voltage transformer part (H2, standard. please refer to the set of N …) is connected to ground. Confirm drawing. all intended groundings. © GE Grid Solutions...
  • Page 12: Maintainence After Energizing

    Never complete oil volume without With an infrared imaging device, check if prior formal authorization of GE. the primary terminal connections are not overheating. Compare with other Important remark: CITs in the same circuit.
  • Page 13: Proper Disposal Of Transformers Components After Lifespan

    “Primary In case of doubts, please contact the Terminals” of this document; technical assistance support of GE: +55 4) Secondary terminal box: If necessary 35 3629 7042 or 7038 or 7000 clean inside the terminal box.
  • Page 14 Other materials Industrial landfill properly licensed The disposal of oil and components contaminated with oil directly into the soil or water is prohibited. For further information or clarifications, contact GE environment department: +55 35 36297112. © GE Grid Solutions...

This manual is also suitable for:

Kotef 245

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