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How to Choose Split Core Current Transformer for LV Panels?

News | company news | Jun 26,2026

A practical guide for engineers to select the right Split Core Current Transformer, panel builders, engineering, procurement and construction (EPC) companies, and energy management experts.

Egypt’s electricity infrastructure is developing rapidly.

Thanks to Egypt’s Vision 2030 program, increased industrial investment, renewable energy development, and smart city initiatives, the country has become one of the fastest-growing electricity markets in North Africa. New factories, commercial buildings, photovoltaic power plants, logistics centers, hospitals, and data centers are creating unprecedented demand for reliable energy metering and energy management solutions.

For electrical engineers, modern power distribution projects are no longer limited to simply delivering electricity. Modern systems must also provide accurate monitoring, energy efficiency analysis, predictive maintenance, and digital integration.

Growing demand has made this component an increasingly important element in virtually all modern low-voltage switchgear:

Split core current transformer

Unlike conventional solid-core current transformers, split-core current transformers can be installed around existing conductors without cutting cables or busbars. This simple design significantly reduces installation time, minimizes production downtime, and reduces labor costs—advantages that are especially valuable in modernization projects where shutting down electrical systems is costly or even impossible.

Whether you are designing a new low-voltage distribution panel, upgrading an industrial production line, installing an energy management system (EMS), or integrating smart meters into an existing facility, selecting the right split-type current transformer is critical to ensuring long-term metering accuracy and operational reliability.

This guide explains how Egyptian engineers select split current transformers for various applications, compares available product options, and provides practical lessons learned from typical industrial and commercial projects.

Split core CT DP HEYI current transformer

Why is Egypt becoming one of the most promising markets in Africa for split-core power converters?

Over the past decade, Egypt has invested billions of dollars in upgrading its electricity infrastructure.

A number of national development initiatives, including the Egypt Vision 2030 program, the creation of a new administrative capital, large-scale renewable energy projects, industrial expansion zones, and the electrification of transport, have accelerated the growth in demand for modern energy monitoring technologies.

Nowadays, electricians install current transformers not only for protection purposes.

However, measuring electricity consumption has become an integral part of the following processes:

  • Energy management systems (EMS)
  • Building Management Systems (BMS)
  • Smart meters
  • network quality analysis
  • Industrial automation
  • SCADA systems
  • solar energy monitoring
  • data center infrastructure
  • Predictive maintenance

For system integrators and control cabinet manufacturers, accurate current measurement is now directly linked to energy efficiency, reduced operating costs, and regulatory compliance.

With the accelerated digital transformation of the Egyptian industrial sector, split-core current transformers are increasingly being used in modernization projects, replacing traditional solid-core current transformers.

Technical challenge: to modernize existing electrical systems without interrupting production.

One of the biggest challenges for Egyptian engineers is that many industrial plants were built more than 15 years ago.

Factories producing cement, steel, chemicals, food, textiles and building materials operate around the clock.

Production stoppages due to changes in electrical equipment are extremely costly.

For example:

The average manufacturing facility can lose thousands of dollars for every hour of production line downtime.

When engineers need to install the following components:

  • Additional electricity meters
  • energy monitoring devices
  • Smart sensors
  • building management systems
  • Predictive maintenance equipment

They often find that using conventional current transformers requires cutting existing cables or removing busbars.

This leads to unnecessary downtime.

Split core current transformers solve this problem.

Since the magnetic core can be opened, the transformer is simply attached around the existing conductor.

Do not cut any cables.

The tires cannot be removed.

Complex wiring modifications are not required.

This results in faster installation, lower labor costs and a significant reduction in operational risks.

In renovation projects, this installation method is one of the main reasons why engineers choose split-core current transformers.

Current Transformer DP Split

Why are more and more Egyptian engineers choosing split-core power converters?

Although split-core power converters have been around for many years, their adoption in Egypt has accelerated significantly due to a number of industrial trends.

 

1.Growing demand for energy efficiency.

The cost of electricity continues to impact the industry’s operating costs.

Factories are investing in energy management systems to monitor energy consumption at the utility level.

Split core current transformers provide a simple way to add measurement points without changing the existing electrical infrastructure.

 

2.Increase in the number of reconstruction projects.

Unlike new construction, retrofit projects require engineers to work with existing distribution equipment.

Removing cables from live electrical panels is a time-consuming and often impractical operation.

Split-core current transformers allow current measurements to be integrated in minutes rather than hours.

 

3.Development of solar energy

Egypt has become one of the main markets for renewable energy in Africa.

Commercial rooftop PV systems and large solar power plants require continuous monitoring of energy consumption to:

  • Inverter output
  • Combination boxes
  • Measuring Network Exports
  • Performance analysis

Split-core transformers simplify such installations by allowing the integration of additional monitoring devices without changing existing wiring.

 

4.Smart buildings and smart infrastructure

The following elements are increasingly used in modern commercial buildings:

  • Smart meters
  • building management systems
  • monitoring of heating, ventilation and air conditioning systems
  • Lighting control
  • Energy analysis

Current transformers are installed in distribution boxes to collect data on electrical activity in real time.

The split core design significantly simplifies installation both during construction and during subsequent expansion.

Installation of Current Transformers in Switchgear

Where are split core power converters used in Egypt?

Although initially developed for industrial services, split current transformers are now used in virtually every sector of the Egyptian economy.

industrial production

Cement, steel, chemical, fertilizer, textile, and food processing plants use split-core current transformers to monitor motors, production lines, compressors, pumps, and power distribution systems.

commercial building

Office buildings, shopping malls, hospitals, universities and hotels use split-core power transformers to record electricity consumption on individual meters, bill tenants and optimize energy consumption.

solar energy systems

Solar engineering, procurement, and construction (EPC) companies are installing split-type current transformers in distribution boxes, inverter cabinets, and monitoring panels to improve operational transparency.

wastewater treatment plants

Municipal water pumping stations use power converters to monitor pump motor performance and optimize energy consumption.

data processing centers

Modern data centers require continuous electrical circuit monitoring, uninterruptible power supply (UPS) monitoring, and power usage effectiveness (PUE) analysis.

Split-core current transformers provide reliable measurements and allow for future system expansion.

Compay:HEYI Electrical Co., Ltd.
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com             
Tel: 86-13968747975

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