With the rapid development of industrial and commercial photovoltaics, split-core current transformers have become an indispensable current acquisition device in photovoltaic systems due to their advantages such as convenient installation, no need for wiring removal, and suitability for retrofit projects. Their main applications include the following:

1. Round Split Core CT (5A Input, mA Output)

Main function: Converts standard 5A secondary current into a low-level mA signal for meters, data loggers, and energy management systems.
Typical applications:
• Current monitoring
• Energy monitoring system components

Features:
• Installation without opening the 5A secondary circuit
• Improved installation safety
• Reduced construction risk
• Ideal for retrofit projects

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2. Round Split Core CT (for Round Cables)

Main function: Primary current measurement.
Typical applications:
• Grid connection current monitoring
• Zero Export monitoring
• PV generation monitoring
• EMS energy management
• BESS current measurement

Features:
• Suitable for round power cables
• Clip-on installation without disconnecting cables
• Fast installation

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3. Square Split Core CT

Main function: Busbar current measurement.
Typical applications:
• PV low-voltage distribution cabinets
• Grid-tie cabinets
• Combiner cabinets
• Energy storage cabinets
• Busbar current monitoring

Features:
• Suitable for copper/aluminum busbars
• Supports high-current measurement
• Easy installation without removing the busbar
• Meets monitoring requirements of large distribution systems

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