March 23, 2022 8:00 am

Senior maintenance of the control and protection system in the three-phase reactor 230kv Crompton Greaves in Carrasco Substation Personnel from the Department of Substation Maintenance and the Regional Tropic of Ende Transmission S.A.Successfully concluded maintenance in the 230kV three-phase reactor Crompton Greaves from the Carrasco substation corresponding to the replacement and improvements of the system […]

Senior maintenance of the control and protection system in the three-phase reactor 230kv Crompton Greaves in Carrasco Substation

Personnel from the Department of Substation Maintenance and the Regional Tropic of Ende Transmission S.A.Successfully concluded maintenance in the 230kV three-phase reactor Crompton Greaves from the Carrasco substation corresponding to the replacement and improvements of the system of Ducted and renewal of control-protection circuits next to the respective final tests In coordination with the COT.

The technical characteristics of the equipment are the following:

  • Equipment: Three-phase power reactor
  • Brand : Crompton Greaves
  • Power : 12 MVAr
  • High voltage : 230 kV
  • Frequency : 50 Hz

ENDE Transmisión S.A. It has highly specialized personnel to perform the analysis, re-design and execution of renewal tasks and improvements in transformer components and power reactors installed in Bolivia and as it is natural, the work carried out there Transmission, satisfactorily meet ISO 14001: 2015, ISO 9001: 2015 and ISO certifications 45001: 2018.

The works in the reactor were scheduled based on the analysis of the state of the ducts and Control-protection circuits, which, due to the natural deterioration presented by the years of service and mainly due to the climatic characteristics of the area, it corresponds a Renewal and improvements in these.

The works were executed in four stages:

  1. Re-design of the ducteed system, quantification and supply of materials.
  2. Survey of all electrical circuits corresponding to current transformers and Electromechanical Protections (Relay Buchholz, Pressure Relief Valve, Level Indicator of oil, oil thermometers and windings, etc).
  3. Planning the unavailability of the equipment and execution of the tasks
  4. Final testing and equipment availability for your re-entry

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Development of the re-design of the control and protection circuit control system for the Quantification and detail of materials

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Development of the re-design of the control and protection circuit control system for the Quantification and detail of materials

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Preparation of wiring sheets

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Disassembly of the ducts and electrical circuits

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Disassembly of the ducts and electrical circuits

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Installation of new ducts and wiring electrical circuits

For the conclusion of the work, the functional tests of all electromechanical protections were carried out with the confirmation in the control room and COT of activation, the tests and measurements of the current transformers were proceeded to verify the appropriate conditionsof the electrical circuits.

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Final State of the reactor Crompton Greaves 12 MVAR of Substation Carrasco.