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Products and innovations

Solutions for smart grid applications

Solutions for smart grid applications
Innovation

J&D is a market leader in current and voltage sensors. Built with its advanced AI and IoT technology, J&D is launching products such as the Outdoor Waterproof Rogowski Coil CT, the Split-Core Power Metering CT, an Advanced Power Quality Meter, a Branch Circuit Power Meter and a Wireless Distribution Transformer Monitoring System.

The brand new PQ-CT Series, which consists of the JPS Series Split-Core CT and the JRFS-RM Series Rogowski coil CT, can be used for power quality monitoring and highly accurate revenue grade metering for both AC and DC current. J&D's new products are the best solution for smart grid applications such as MV / LV substations, power quality meters, energy meters, branch circuit meters, PV monitoring, motor quality diagnostics, Traction and data center and more.

Product range

Flexible Rogowski coil Current Sensors

Flexible Rogowski coil Current Sensors

J&D Rogowski coil CT is made with high accurate coil winding technology on air core which shows precise quality from low current to high current and provides optimizing solution. It improves both conductor positioning error and influence by external magnetic field. As split clip flexible outfit, it can be easily installed even at limited space without cutting power lines. Main applications are power distribution monitoring, high current measuring, sub metering and etc.

The new model, the JRFS-RM series is an exciting addition to our existing product line-up, providing our customers with an easy-to-install alternative to the conventional High current Revenue-Grade (rigid) Split-core CT. The JRFS-RM series offers a wide range of rated current from 500A to 10,000A with four inner diameters sizes including 120mm / 190mm / 300mm / 500mm.

The dual air coil achieves the revenue grade accuracy while maintaining the desirable feature of ultra-easy and fast installation. Due to the flexible nature of the JRFS-RM Rogowski coil, it is perfect for large bus bars and irregular-shaped conductor bundles. In addition, its small profile and light weight allow it to be used on conductors in tight spaces where rigid CTs simply will not fit.

The JRFS-RM series supports the secondary output values of 333mVac as standard, and 100mV / 250mV as option. Additionally, it performs 0.2S and 0.5S Class of accuracy as Revenue-grade, complying with IEC61869-2, ANSI C57.13 standards. The applications are Renewable Energy Power Monitoring, Electrical Vehicle Charging Stations, Distribution Circuit Metering, Power Quality Metering, LV/MV Substations, etc.
JRFS-RM series with the built-in integrator version, also will be launched for the simple and fast installation.

Product range

The JPS series revenue-grade, split-core current transformers

The JPS series revenue-grade, split-core current transformers

The JPS series revenue-grade, split-core current transformers offer the high accuracy and low phase shift, and the easy two-handed opening and closing, with a safe output values of 100, 250, 333, 500, 1000mVac of voltage output and 50, 80, 100mA, 1A, 5Aac of current output.

The JPS series fulfill the standards, IEEE C57.13 Class 0.3 & 0. 6 accuracy and IEC 61869 Class 0.2S & 0.5S accuracy. Designed specifically for Revenue grade energy and power quality meters, the JPS series is available in four window opening sizes of 10mm / 20mm / 33mm / 52mm, with the current measurements 5A to 1,600A. All models are available in standard and revenue-grade accuracies and offer a wide range of reading from 1% to 120% of primary rated current, wider than other standard current transformers.

The JPS series revenue-grade split core CTs are optimized for Renewable energy power monitoring, Distribution circuit metering, and Power quality metering. They have a hinged opening mechanism for easy installation. With using hall e¬ffect sensor technology, the other version of the JPS series for measuring DC current will be also launched in addition to AC current.

Product range

Hall Effect Sensors

Hall Effect Sensors

1) Closed Loop Hall Effect Technology
Applying our Closed-Loop Hall Effect Technology iSAST HCS, JP and JPC series induces a magnetic flux as the load current (Ip) passes through the magnetic core. This magnetic flux induces a proportional voltage in the Hall Element sensor. The amplified voltage then transfers to the secondary current (Is). This secondary current increases proportionally to the primary current. This secondary current (Is) develops a voltage (Vm) into the output on a load resistor (Rm). This technology offers an optimized solution for highly accurate current monitoring when our customers require stable temperatures and fast response time.

2) Open Loop Hall Effect Technology
Applying our Open Loop Hall Effect Technology iSAST HCS, JHAO series creates primary magnetic flux from the input current (Ip) as it goes through the magnetic core. This magnetic flux couples a proportional voltage into the Hall Element to develop an amplified voltage (Vm) and offers an optimized solution for accurate current monitoring.

Product range

Power Quality Meter JAGUAR 6300 series

Power Quality Meter JAGUAR 6300 series

JAGUAR 6300 series is the high precision Power Quality meter, which is compatible with J&D JPS series and JRFS-RM series CTs. It can measure the various electrical parameters such as Sag/Swell, THD (Total Harmonics Distortion), Crest Factor, and K Factor. Additionally, the JAGUAR 6300 offers Data Logging and Wave Capturing feature making it an excellent tool to perform accuracy analysis and diagnosis for energy management and power measurements.

JAGUAR 6300 series is the Power Quality meter complying with IEC61000-4-30 as Class S which is for power quality standards, and it also complies with IEC61557-12 which is a standard for performance measuring and monitoring devices. JAGUAR 6300 series communicates over Ethernet and it forms as Ringing Communication so that it could measure the data in real-time. Optionally, JAGUAR 6300 can use other communication modules beyond Modbus RTU Protocol.

JAGUAR 6300 series is a perfect solution for Switchgear Panel Monitoring and Energy Managing for Factory, Plant, and Building.

Product range

Branch Circuit Power Meter Multi-GEM12

Branch Circuit Power Meter Multi-GEM12

Multi-GEM 12 is installed in electric distribution and local panels for supplying power to their production line. It measure the voltage and current, and calculate the power in real-time. You can monitor and manage the energy of equipment. It can help to operate efficiently and to reduce the energy consumption.

This equipment is capable of accurate analysis and diagnosis for various problems of energy management and power plants. Multi-GEM 12 is able to measure and monitor multi electric power loads. it supports Max 12 single phases or 4 3P4W feeders power monitoring

Product range

Branch Circuit Power Meter Multi-GEM18

Branch Circuit Power Meter Multi-GEM18

Multi Green Energy Meter 18 (Multi-GEM) offers reliable and accurate energy monitoring & management in realtime at electric multiple feeding points. Multi-GEM automatically provides metering, demand, energy readings and loggings over multi-feeding points.

It enables to monitor 18 feeders for 1P2W, 8 feeders for 3P3W, 6 feeders for 3P4W or any combination of Single and Three phase circuits.
This useful flexibility makes Multi-GEM to be effective over IDC (Internet Data Center), Office buildings, Shopping mall and the other industries.
Current detection of Multi-GEM is operated via external current transformers (CTs).

Each CT measures and log the current and energy with the voltage input consumed by each of the branch circuits at the electric feeding points. This flexibility allows simple restructuring for electric circuit group without wiring changes.

Product range

Branch circuit power meter EasyModular Multi-GEM

Branch circuit power meter EasyModular Multi-GEM

EasyModular Multi-GEM is installed in electric distribution and local panels for supplying power to their production line. It measures the voltage and current, and calculates the power in real-time. You can monitor and manage the energy of equipment. It can help to operate efficiently and to reduce the energy consumption.

The multi power meter(EasyModular Multi-GEM) is able to measure and monitor electric power loads. it supports max 54 single phases or 26ch 3P3W or 18ch 3P4W feeders power monitoring.

Product range

Split-core Current Transformer

Split-core Current Transformer

Miniature Split-core CT is suitable for primary range from 5 to 2,400A AC with mA, 0.1A, 1A, 5A, 333mV AC and 0-5V, 0-10V DC secondary.

It improves both intrinsic errors in low current and errors occurred by external vibration and shock with strong durability and minimum tolerance on cutting cross section of core. Main applications are sub-metering, power meter, PLC (Programmable Logic Controller), energy automation, etc.

Product range

Clamp-on AC/DC Current Probe

Clamp-on AC/DC Current Probe

Clamp on portable CT is suitable for primary ranges from 5 to 1,000A AC with mA, 0.1 A,1 A, 5A, 333mV AC a nd 0-5V, 0-10V DC secondary.

It improves both existing errors in low current and error occurred by external vibration and shock with strong durability and minimum tolerance on cutting cross section of core.

Main applications are power analyzer, portable power meter tester and portable smart meter tester, etc.

Product range

Split-core AC/DC Current Transducer

Split-core AC/DC Current Transducer

Applying laminated core split technology and open loop technology iSAST OPEN HCS, JSXXH, JM21NH, JHAO-SD, JPSXXH series is designed for strong durability.

It improves not only existing errors at the low current but also errors occurred by external vibration and shock to minimize tolerance on cutting cross section of core.

As a simple one touch split structure, it offers best solution for security and fast installation on high frequency monitoring device without cutting power line. Rated current is DC 3A-8000A. Main applications are inverter monitoring, DC smart meter, PV energy saving and etc.

Company profile

J&D is a market leader in current and voltage sensors.  Built with its advanced AI and IoT technology, J&D is launching products such as the Outdoor Waterproof Rogowski Coil CT, the Split-Core Power Metering CT, an Advanced Power Quality Meter, a Branch Circuit Power Meter and a Wireless Welding Monitoring System.

The brand new PQ-CT Series, which consists of the JPS Series Split-Core CT and the JRFS-RM Series Rogowski coil CT, can be used for power quality monitoring and highly accurate revenue grade metering for both AC and DC current.  J&D's new products are the best solution for smart grid applications such as MV / LV substations, power quality meters, energy meters, branch circuit meters, PV monitoring, motor quality diagnostics, Traction , data center and Welding.