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YADA YDRS1-45 Class 0.5s Three-Phase Flexible Rogowski Coil Current Transformer for Power Monitoring System

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Product Description 

The YADA YDRS1-45 Flexible Rogowski Coil Current Transformer is a high-accuracy three-phase CT designed for modern power monitoring, energy metering, and smart grid systems. With its flexible open-close design, it allows for quick installation without power interruption — ideal for retrofit and OEM integration.

 

 

 

Key Features

  • Flexible Rogowski Coil Design – Open/close structure enables easy installation around existing cables or busbars.

  • Wide Measurement Range – Measures up to 500A with consistent accuracy for industrial and commercial applications.

  • High Precision Class 0.5s – Ensures reliable current sensing performance for accurate metering and monitoring.

  • Non-Magnetic Core Structure – Eliminates magnetic saturation, offering superior linearity and frequency response.

  • Compact and Lightweight – Easy to integrate inside switchgear and energy management devices.

  • Durable & Safe Construction – Flame-retardant UL94 V-0 material with 3kVAC insulation withstand voltage.

  • Wide Temperature Range – Performs stably under harsh environments from -40°C to +70°C.

  • Plug-and-Play Installation – Simple cable fastening and anti-detachment structure improve efficiency and reliability.

Technical Specifications

Item Specification
Rated Primary Current 100A
Max Primary Current 500A
Transformation Ratio 500A/400mV
Accuracy Class 0.5s
Frequency 45Hz – 5kHz
Linearity ≤0.1%
Temperature Drift ≤0.5%
Operating Temperature -40℃ ~ +70℃
AC Withstand Voltage 3kVAC / 1min
Relative Humidity ≤80%RH
Altitude ≤4000m
Flame Retardant Rating UL94 V-0

 

Operating Conditions

● Rated Primary Current：100A;

●Maximum Primary Current：500A
● Rated Secondary Output:：80mV
●Transformation Ratio：500A/400mV；
●Rated Auxiliary Power Supply：DC5V;
●Operating Temperature：-40℃~70℃ ;

● Relative Humidity≤80% ;
●Altitude：≤4000m ;
● Rated Voltage：0.6kV ;
● Rated Frequency：50Hz ;
● Insulation Withstand Voltage: AC 3.0kV/min (secondary to ground.

Product Features

●Open/close structure design allows installation without power interruption;
● Coreless design, suitable for a wide range of primary currents;
● No high voltage risk caused by secondary circuit open in traditional current transformers;
● Without magnetic core, no magnetic saturation or ferromagnetic resonance occurs;
●Compact structure, lightweight, and small volume for the entire measuring device; ● Cable tie fastening design for easier and more convenient installation;
● Features anti-detachment perforation and tamper-proof sealing hole design, ensuring more reliable metering

Applications

  • Power quality analysis and energy management systems

  • Industrial automation and factory monitoring

  • Data center and smart building energy monitoring

  • Integration with multifunction meters and data loggers

  • Renewable energy and PV inverter monitoring

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