Trifásica Elétrica

Technical blog

A reference in medium voltage, protection and energy efficiency.

How SPDA works, its importance, and when to install it
Aterramento

How SPDA works, its importance, and when to install it

SPDA protects people and buildings from lightning. See how it works and when it is mandatory.

17/12/2024
Signaling and colors in electrical control panels: the guide
Painéis e Relés

Signaling and colors in electrical control panels: the guide

Colors in panels are not aesthetic: they communicate status and risk. See the standard and why it matters.

27/11/2024
Complete guide on medium voltage substation
Cubículos Blindados

Complete guide on medium voltage substation

The substation transforms and distributes energy safely. Discover its components and how each one protects the installation.

25/10/2024
Energy efficiency in the industrial sector: strategies and benefits
Painéis e Relés

Energy efficiency in the industrial sector: strategies and benefits

Reducing the energy bill without losing production is possible. See industrial efficiency strategies.

24/07/2024
Miniature circuit breaker, molded case and air circuit breaker: where to use each
Disjuntores

Miniature circuit breaker, molded case and air circuit breaker: where to use each

The choice of low voltage circuit breaker depends on the current and application. See the difference between the three types.

28/06/2024
Transformers and their importance for energy efficiency
Transformadores

Transformers and their importance for energy efficiency

An efficient transformer reduces losses and the energy bill. Understand the losses and how to choose.

28/05/2024
PPE for electricians: how to use and maintain correctly
Equipamentos de Segurança

PPE for electricians: how to use and maintain correctly

PPE only protects if used and maintained correctly. See the essential care for electricians.

26/04/2024
Polymeric and heat-shrink terminations: what they are for and when to use them
Terminações

Polymeric and heat-shrink terminations: what they are for and when to use them

The termination restores the electric field control at the end of the cable. See the technologies and when to use each one.

27/03/2024
Dry-type and oil-filled transformers: differences and when to use each
Transformadores

Dry-type and oil-filled transformers: differences and when to use each

The choice between dry-type and oil-filled transformers impacts safety, cost, and installation location. See the differences.

26/02/2024
What are the components of a photovoltaic system
Cabo Solar

What are the components of a photovoltaic system

A solar system is more than just panels. See all the components and the function of each one.

31/01/2024
SPDA installation and maintenance: what you need to know
Aterramento

SPDA installation and maintenance: what you need to know

An SPDA only protects if well installed and maintained. See the precautions and inspection frequency.

21/12/2023
How to size cables for electrical grounding
Aterramento

How to size cables for electrical grounding

The correct grounding cable ensures protection and the operation of the protections. See how to size it according to the standard.

28/11/2023
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