Related Manuals for GE KOTEF-72
Summary of Contents for GE KOTEF-72
- Page 1 INSTRUCTION MANUAL - 19401 72.5kV COMBINED TRANSFORMER TYPE KOTEF-72 © GE Grid Solutions...
- Page 2 Instruction Manual GE Grid Solutions Av. Nossa Senhora da Piedade, 1021 37504-358 Itajubá - MG – Brasil 22/03/2022 24/11/2013 TCRP Owner revision Date Prepared Approved © GE Grid Solutions...
- Page 3 The supplied insulator can be made of porcelain, therefore, sudden movements that could cause damage due to cracks shall be avoided. © GE Grid Solutions...
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Page 4: Table Of Contents
6.5. Secondary terminals ....................... 10 6.6. 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
2. Oil Level Indicator (metallic bellows) 3. Lifting eyes (4x) 4. Primary terminals: aluminum or tinned copper alloy 5. Cast aluminum tanks (upper-CT and bottom-VT) 6. Insulator: Porcelain or Composite 7. Secondary terminal box General Drawing of KOTEF72 © GE Grid Solutions... -
Page 6: Design And Construction
Secondary turns are evenly wound around the circumference of the ring-shaped cores. Changing ratio is available by means of taps on the secondary or primary side. © GE Grid Solutions... -
Page 7: Cast Aluminum Tanks
See pictures to proceed: shipment documents. receipt control, mainly porcelain insulators and the secondary terminal box, shall be done in the presence of the forwarding agent, if possible. The remarks regarding the condition of the © GE Grid Solutions... -
Page 8: Storage
(using a marker, chalk or pencil); 2) Remove the screws that fix the top cover; 3) Remove the bellows blocking device and the protection film; 4) Confirm by visual check that the © GE Grid Solutions... -
Page 9: Assembly In The Structure
150 grain in order to eliminate the oxidation layer. Scrub the contact surfaces with a metallic brush (diameter of the thread 0.3mm) and impregnate with grease of the type “PENETROX” or equivalent. All the © GE Grid Solutions... -
Page 10: Connections
This changing ratio is made by means of reconnection bars located in the top tank, closer to primary terminals. See set of drawing to know how the reconnection bars need to be © GE Grid Solutions... -
Page 11: Terminal Marking
In case of oil level indicator is in either the bellows are positioned within the of the red areas, the transformer must green strip area. be removed from operation and GE informed immediately. It is not necessary to remove oil samples for analysis. The Combined... -
Page 12: Maintainence After Energizing
With an infrared imaging device, check if the primary terminal Never complete oil volume without connections are not overheating. prior formal authorization of GE. Compare with other KOTEF72 from the same circuit. Important remark: During... -
Page 13: Proper Disposal Of Transformers Components After Lifespan
For further information or clarifications, acquired in the tests abovementioned. contact GE environment department: +55 35 36297112. In case of doubts, please contact the technical assistance support of GE: +55 35 3629 7042 or 7038 or 7000 © GE Grid Solutions...