GE OTEF-72 Instruction Manual
GE OTEF-72 Instruction Manual

GE OTEF-72 Instruction Manual

Inductive voltage tranformer

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Instruction Manual
INSTRUCTION MANUAL NUMBER MIITR101
INDUCTIVE VOLTAGE TRANFORMER
OTEF-72 / OTEF-123 / OTEF-145 / OTEF-245
© GE Grid Solutions

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Summary of Contents for GE OTEF-72

  • Page 1 Instruction Manual INSTRUCTION MANUAL NUMBER MIITR101 INDUCTIVE VOLTAGE TRANFORMER OTEF-72 / OTEF-123 / OTEF-145 / OTEF-245 © GE Grid Solutions...
  • Page 2 Instruction Manual GE Grid Solutions Av. Nossa Senhora da Piedade, 1021 37504-358 Itajubá - MG – Brazil 30/10/2017 24/11/2013 TCRP Owner revision Date Prepared Approved © GE Grid Solutions...
  • Page 3 Any irregularities should be recorded on the transport delivery note a formal communication sent to the responsible person immediately. The supplied insulator can be made of porcelain, avoid sudden movements that could cause damage due to cracks for example. © GE Grid Solutions...
  • Page 4: Table Of Contents

    BELLOWS BLOCKING SYSTEM FOR TRANSPORTATION ..............10 OIL LEVEL INDICATOR........................ 11 INSPECTION BEFORE FIRST ENERGIZING ..................11 MAINTAINENCE AFTER ENERGIZING ................... 12 TESTS AT SITE ........................12 FINAL DISPOSAL OF THE TRANSFORMER PARTS AFTER LIFETIME ..........12 © GE Grid Solutions...
  • Page 5: General Drawing

    1- High voltage terminal 2- Insulation system (paper impregnated with oil) 3- Secondary terminal box 4- Oil level indicator 5- Metallic bellow 6- Insulator: porcelain or composite 7 – Aluminum tank 8- Feet with hole for anchoring © GE Grid Solutions...
  • Page 6: Transport, Reception, Unpacking And Storage

    In case of damages, the customer inspector in charge of receipt shall notify GE and the insurance representative. All contact information shall be indicated on shipment insurance documents. This declaration...
  • Page 7: Unpacking

    VT packed in horizontal position: 1) Remove upper cover. 2) Remove the four screws at the equipment feet. 3) Remove the smaller extremities. 4) Remove the larger extremities 5) Remove the green nylon slings pieces © GE Grid Solutions...
  • Page 8 (nylon belts reinforced) avoid blows vibrations. Handle with care © GE Grid Solutions...
  • Page 9: Storage

    Use proper connectors to guarantee a contact surfaces with sandpaper 150 grain to good connection. Tightening torque is eliminate the oxidation layer. Scrub the indicated in the drawing of the contact surfaces with a metallic brush secondary terminal box. © GE Grid Solutions...
  • Page 10: Terminal Marking

    Will be at the original position. •Remove the four M6 screws that fix the top cover to the bellows flange. Example of grounding terminal •Remove the top cover, with care, keeping a vertical movement. Do with care in order do © GE Grid Solutions...
  • Page 11: Oil Level Indicator

    The VT are routine tested in the factory and put into service unless there is a formal do not require repeated electric test. Look release from GE. In case of doubts, to contact for Project routine test reports for more the technical assistance support of GE for details.
  • Page 12: Maintainence After Energizing

    If posible GE suggests disconnecting the VT and to perform the following examination: •Insulator: Depending on the pollution level it is necessary to clean the porcelain.
  • Page 13 Other materials Industrial landfill, properly licensed by the state’s responsible agency disposal 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:

Otef-123Otef-145Otef-245

Table of Contents