Current transformers (LV)

Current transformers (nN) - key elements of electrical installations

Low-voltage current transformers are an indispensable element of modern power systems.   At Onninen, we understand their importance perfectly. Our experience shows that the right selection of these devices is crucial. It affects the accuracy of measurements and the safety of the entire installation. That is why our offer includes a wide selection of LV current transformers from renowned manufacturers.

Current transformers play an important role in measurement and protection systems. They enable the measurement of high current. They do this by proportionally reducing it to a safe value for meters. In practice, this means that they protect sensitive measuring devices from damage. At the same time, they provide accurate readings even under heavy loads.

Types of current transformers (LV) available at Onninen

In our offer you will find various types of nN current transformers. Each of them has its unique application and characteristics. Here are the most important types:

• Split-core current transformers
• Current transformers for fuse switches
• Current transformers for busbar systems
• Three-phase current transformers
• Toroidal transformers
• Summation transformers
• Single-phase current transformers

Open-core current transformers are very popular among our customers.   Their design allows for easy installation without having to disconnect the circuit. This is particularly useful in existing installations. It allows for quick modernization without long-term power outages.

In turn, current transformers for fuse switch disconnectors are used in compact switchboards. They are an ideal solution when installation space is limited. Our practice shows that they are often chosen in projects for the modernization of older buildings.

How to choose the right current transformer (nN)?

Selecting the right nN current transformer requires taking into account many factors. Key parameters include:

• Rated primary and secondary current
• Accuracy class
• Rated power
• Rated insulation voltage
• Installation type (indoor/outdoor)

At Onninen we offer professional advice when selecting LV current transformers.   Our experience shows that the right choice is crucial for the efficiency and safety of the installation. We often encounter situations when a customer needs a transformer with unusual parameters. In such cases, we can offer tailor-made solutions.

We recently worked on a project for a large logistics center. It required the use of high-accuracy current transformers. The aim was to precisely monitor energy consumption in different areas of the facility. We selected 0.2S class transformers that met the client's requirements. Thanks to this, the company was able to optimize its processes and significantly reduce energy costs.

Reliable brands of current transformers (LV) in the Onninen offer

Our range includes products from leading manufacturers. We offer nN current transformers from brands such as F&F, Hager, Smone, Eaton and Eti. Each of these companies has a well-established position on the market. They guarantee high quality and reliability of their products.

We pay special attention to innovative solutions in the field of LV current transformers.   An example would be transformers with digital communication. They enable remote readings and integration with energy management systems. This solution works great in modern, intelligent buildings.

In everyday practice, we see a growing interest in toroidal transformers. Their compact design allows for installation in places with limited space. At the same time, they provide high measurement accuracy. They are often chosen for the modernization of older electrical installations.

Summation transformers are another product category worth highlighting. They are used in systems where it is necessary to measure the total current from several circuits. In practice, we encounter their use in large industrial facilities. They allow for effective management of energy distribution in extensive installations.

It is worth emphasizing that LV current transformers are not only an element of measuring systems.   They also play a key role in security systems. They enable quick detection of overloads or short circuits in the installation. This translates directly into increased user safety and protection of valuable equipment.

At Onninen, we focus on comprehensive solutions. That is why, in addition to the transformers themselves, we also offer mounting accessories and auxiliary elements. This allows our customers to complete the entire measuring system with us. This saves time and eliminates problems with component compatibility.

Our experience shows that the right selection of nN current transformers is an investment in the future. High-quality devices ensure long-term, failure-free operation. This translates into lower operating costs and greater reliability of the entire electrical installation.

We invite you to contact our specialists. We will help you select the optimal LV current transformers for your project.   Our experts are ready to answer all questions and advise the best solutions. Thanks to many years of experience in the industry, we can guarantee professional support at every stage of implementation.