Rogowski Coil – Jiangsu Province,Jiangyin Yucheng Electric Co., Ltd.

Product Center Overview

Technical Solutions Across 4 Key Industries

Roche Coil Transformer (flexible Opening Transformer) – CTLS

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A ~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Roche Coil Transformer (flexible Opening Transformer) – CTLS2

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A ~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: + 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Roche Coil Transformer (flexible Opening Transformer) – CTLS4

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 10A ~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: + 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Roche Coil Transformer (flexible Opening Transformer) – CTLS3

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 10A ~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: + 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Roche Coil Transformer (flexible Opening Transformer) – CTLSX

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A ~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: + 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Roche Coil Transformer (flexible Opening Transformer) – CTLS1

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A ~ 300kA
Rated secondary output with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 10omV/kA, 50mV/kV
Accuracy: 1%
Rated auxiliary power supply: 12V, 24V, 5V D.C or 220V A.C
Rated power consumption: s 10W, working frequency 1hz-1mhz

Busbar Puncture Roche Coil Transformer – CTLSF

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A~ 300kA
Rated secondary output: with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%

Clamp Type Rogowski Coil Current Transformer – LSPD3

Maximum withstand voltage: 0.66kv (customized for special requirements)
Rated primary current: 0A ~ 300kA
Rated secondary output with integral: 4V, 1A (A.C) or 4~20mA(D.C.); No integral: 100mV/kA, 50mV/kV
Accuracy: 1%

Flexible Roche Coil – LSPD2

The most accurate coil on the market, class 0.5 (IEC 61869-10)
Low positioning error
Small influence of external electric field
Low sensitivity 22.5mV /kA, 50mv/KA, 100MV/KA, for indoor applications
Electrostatic shielding, including better common mode suppression integrator
Protection level IP67/IP65
Sensor aperture size can be customized

Flexible Roche Coil – LSPD1

The most accurate coil on the market, class 0.5 (IEC 61869-10)
Low positioning error
Small influence of external electric field
Low sensitivity 22.5mV /kA, 50mv/KA, 100MV/KA, for indoor applications
Electrostatic shielding, including better common mode suppression integrator
Protection level IP67/IP65
Sensor aperture size can be customized

Single-Phase 5A Rogowski Coil Integrator

The YC05-1 can be used with any model or size of Rogowski coils fromYUCHENG
Customizable measured current range available upon customer request
Output value: 0~ 5A AC
Wide bandwidth measurement: 30Hz to 2kHz
The YC05-1 with Rogowski coils offers a flexible solution for measurement, power monitoring, and integration with energy meters, overcoming limitations of conventional CTs

Customization Process Guide

From Concept to Mass Production

Requirement Analysis & Solution Design

We go beyond order-taking by analyzing your application (PV, storage, EV charging) to define key parameters—turns ratio, accuracy, linearity, and dimensions—while optimizing integrator matching and anti-interference design for Rogowski coils.

Rapid Product Prototyping

Once the plan is confirmed, we initiate rapid prototyping. Utilizing our modular core inventory and flexible winding processes, we produce functional samples within 15-20 days, allowing you to proceed with circuit testing and validation ASAP.

Rigorous Testing & Validation

Samples undergo strict functional and environmental testing, including ratio and phase error calibration, as well as withstand voltage, temperature rise, and EMC tests to meet IEC 61869 and application requirements.

Scalable Mass Production

After approval, we move to mass production using automated winding and epoxy casting lines, ensuring consistent magnetic performance and insulation reliability, with monthly capacity over 500,000 units.

Final QC & Global Delivery

We perform AQL sampling or 100% inspection before shipment to ensure zero defects in appearance and performance. Familiar with export packaging standards, we provide shock-proof and moisture-proof packing for on-time global delivery.

Trusted Quality, Proven Performance

Committed to Deliver Reliable Sensing Solutions

Get in Touch

Contact our team anytime for product inquiries, technical support, or project consultation. We are ready to assist you with responsive service and professional guidance.

+86-18762621059

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