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Os tipos de chave seccionadora em subestações de alta e extra alta tensão​

A chave seccionadora proporciona o isolamento do equipamento de uma fonte de energia, abrindo e fechando circuitos por meio de operação manual ou automática para ...
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A importância de realizar ensaio de resistência ôhmica de enrolamentos

Teste verifica a integridade do enrolamento, identificando possíveis problemas, como curtos-circuitos ou conexões soltas, garantindo que a resistência esteja dentro das especificações do projeto.  ...
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The importance of Transmission Lines for the functioning of the National Interconnected System

Sistema Interligado Nacional (SIN) abrange mais de 98% da capacidade de geração de energia do país ...
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COTESA Engenharia saves R$ 7.6 million for transmitters in 2022

In this period, 115 objections were filed, and 77 were accepted.
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The advantages of preventive maintenance

Not having a preventive maintenance plan can lead to serious failures of important equipment for an electrical asset, generating losses and even punishments.
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Wind Farm celebrates energization

This stage is fundamental for the park's commercial operation, planned for this year, which will have a capacity of 480MW.
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Electric generating capacity increased by 8.2 GW by 2022

The result exceeded the target set for centralized generation for the year, which was 7,625 MW
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COTESA Engenharia completes 26 years of activity

We thank our partners for their trust and, especially, our employees who maintain the COTESA standard of quality in the provision of services in assets spread over 21 Brazilian states and the Federal District.
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