Catégorie : Technique

Why do we measure transformer winding resistance ?

Each transformer is included different accessories , such as iron core , windings , coil, insulation material , tap-changers etc. The transformer windings plays a importance role during the running .

This article will introduce the knowledge about the types , the significance of transformer winding and the transformer winding test

Cruise Batteries Maintenance

The marine battery is a crucial component of a ship’s power system and serves as a vital source of power. This artclie is to the knowladge about the cruise batteries maintenance .

Comment régénérer les batteries au plomb ?

La régénération des batteries est un processus de restauration ou de rajeunissement des performances et de la capacité d'une batterie rechargeable qui s'est dégradée ou dont l'efficacité a été réduite au fil du temps.

Erreurs courantes à éviter lors d'un test de décharge de la batterie

Bien que l'exécution d'un test de décharge de la batterie puisse sembler simple, certaines erreurs courantes peuvent entraîner des résultats inexacts et des risques potentiels pour la sécurité. Dans cet article, nous aborderons les meilleures pratiques pour effectuer un test de décharge de la batterie et les erreurs courantes à éviter.

What electrical transformers tests to conduct before installation

What electrical transformers tests to conduct before installation ?

Transformer dielectric test
Transformer winding resistance test
Transformer turn ratio test
Transformer insulation resistance test

Transformer capacitance & tan delta test
Transformer load loss (short circuit )and impedence test

Transformer temperature rise test

The open circuit solution of substation battery backup power system and the prevention measures

This article analyzes the main causes of open circuits in substation batteries and proposes preventative measures, including methods for detecting and preventing battery open-circuit faults

Qu'est-ce que le banc de charge de la batterie ?

Le banc de charge est un dispositif utilisé pour tester les performances et la capacité des batteries en les soumettant à une charge simulée, qui réalise une décharge constante à la valeur définie en régulant continuellement le courant de décharge.

What is the purpose of VLF testing?

The purpose of VLF testing is to detect any potential weaknesses or defects in the insulation of cables and equipment, which can cause electrical breakdowns and failures.

What is tan-delta test ?

Tan-delta test is also know as dielectric losss testing. Dielectric loss refers to the energy loss that occurs in a dielectric material (such as the insulation of a transformer) when an electric field is applied to it. The dielectric loss is caused by the electrical resistance of the material, which results in the conversion of electrical energy into heat.

Prioritizing Safety: The Critical Importance of Preventive Maintenance for Electrical Equipment

The maintenance of electrical equipment is a key point that cannot be ignored in the entire production work. It not only provides guarantee for the production of enterprises, but also vigorously promotes the development of electrical equipment in China. Therefore, for now, it is of great significance to study the preventive daily maintenance of electrical equipment.