
High precision good linearity round hole current transformer (Marshall Series)

Good Linearity Hall Effect Current Transformer for Majuro Power Systems

TRKLS-80R Three-Phase Flexible Rogowski Coil 800A for Ebeye Industrial Monitoring

CR1A H00 Series 300A Transducer for Marshall Islands Renewable Energy Drives
The Republic of the Marshall Islands (RMI), particularly through its economic hubs in Majuro and Ebeye, is undergoing a significant transition toward energy resilience. With a heavy reliance on diesel generation and a rapid pivot toward solar PV integration, the need for High Linearity Precision Current Transformers has never been more critical.
Unlike standard industrial markets, the Marshall Islands' unique maritime climate requires electrical components that offer not just precision, but extreme durability against high salinity and humidity. Precision measurement in local desalination plants, port facilities, and micro-grid systems requires CTs with exceptional linearity to ensure revenue-grade metering and protection under varying load conditions.
Strategic Opportunity: As the RMI government pushes for 100% renewable energy by 2050, the demand for 0.1 class accuracy sensors for smart meters and solar inverters is projected to grow by 15% annually in the Pacific region.
Linearity Precision
Operating Range
Available Protection
Linearity refers to the transformer's ability to maintain a constant ratio between primary and secondary current across its entire operating range. For Marshall Islands' solar farms, where current fluctuations are high due to intermittent cloud cover, high linearity ensures that the control system receives accurate data, preventing harmonic distortion and equipment failure.
In precision applications, the phase angle error can lead to significant power calculation inaccuracies. Our CTs are engineered with advanced nanocrystalline and silicon steel cores that minimize phase shift to <0.1°, essential for PQ (Power Quality) analysis in Ebeye’s industrial zones.
Modern electronic meters often face DC components in the AC line. Our 80A DC Immune CTs utilize a unique core structure to prevent saturation, maintaining accuracy even when DC offsets are present, a common issue in inverter-heavy islanded grids.
Fujian Smrtr Technology Co., Ltd. (Zentar®) has been at the forefront of magnetic component innovation since 1993. For our partners in the Marshall Islands, we offer more than just products; we offer a robust supply chain built on E-E-A-T principles:
Our split-core current transformers and Rogowski coils are specifically designed for energy efficiency monitoring and automation, facilitating sub-metering cost allocation and peak load analysis in the RMI market.

Wire Wrapping

Precision Testing

Auto Winding

8-Axis Winding
🚢 Marine & Port Logistics: Monitoring power consumption of container cranes and dockside shore power in Majuro Port using High-Precision Split Core CTs for easy installation without interrupting service.
☀️ Solar PV & Battery Storage: Utilizing Hall Effect Current Transducers for real-time monitoring of DC-to-AC conversion efficiency in domestic and commercial solar arrays across the atolls.
💧 Desalination Plants: Ensuring motor protection and energy efficiency in high-pressure pump systems through the use of 4-20mA output current transformers for PLC integration.
Zentar® serves a global clientele, providing customized expertise in consulting, design, and manufacturing. For procurement officers in the Marshall Islands, we provide a seamless logistics path from our Xiamen facilities to Pacific ports.
Full traceability for every component supplied.
High-integrity joints for long-term vibration resistance.
Industrial-grade insulation against maritime corrosion.
A: Smart grids rely on bidirectional power flow. Only high-linearity transformers can accurately measure both consumption and feed-in tariff data without introducing errors during low-load periods, which are common in island microgrids.
A: Yes, our high-accuracy IP68 waterproof Rogowski coils are specifically designed for harsh environments. The flexible design also allows for installation in older, cramped electrical cabinets common in the islands.
A: With our ERP system introduced in 2008, we maintain short lead times. Typical production takes 2-3 weeks, with sea freight or air freight options available depending on the urgency of the project.
A: Absolutely. Our R&D team led by 20 senior engineers specializes in customized solutions. We can adjust ratios, hole sizes, and output signals (like 4-20mA or 0-5V) to meet local utility requirements.












Whether you are upgrading the Majuro power grid or installing new solar capacity in Ebeye, our High Linearity Precision Current Transformers provide the reliability and accuracy you need. Join the future of energy management with Zentar®.