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Split-core current transformer for distribution transformer monitoring 2015

Split-core current transformer for distribution transformer monitoring 2015

The integration of revenue-grade CT operated smart meters at the consumer level has expanded significantly as a result of the implementation of the ‘smart grid’ strategy. This rapid expansion has raised the issue of controlling installation costs in existing infrastructure.

As a cost saving solution, J&D has introduced the JMS series of split-core, revenue-metering(billing) CTs which are easy to install and put into operation.

 

JMS Series

The JMS Series is ideal for retrofitting smart meters into existing installations and non-interruptible equipment.

JMS series features an innovative core material, enabling this product to be the first to offer high performance coupled with an attractive price. The core material used in the transformers is a new soft magnetic material with high permeability and cut core.

 

Advantages of JMS Series

  1. Easy and fast installation by one-touch split-core design.
  2. Built-in protection circuit for the user’s safety.
  3. The cut-core design minimizes air gaps.

Reference

KEPID AMSTECH, a smart meter company in South Korea, installed the JMS series for CT operated smart meter solution in Myanmar. The project was very successful, once again proving J&D’s high performance and quality technology.

 

JCP and JRFS Series

(Revenue-grade Rogowski coil and clamp on current probe)

The issue that the protable equipment market has to resolve is how to improve quality and accuracy of portable test equipment.

As a high quality solution, J&D has introduced the JCP and JRFS series of split-core, revenue-grade current probes which are very easy to install and put into operation with one-handed opening and closing – even when wearing gloves. They are ideal for portable test equipment and can be retrofitted into existing installations with non-interruptible equipment.

 

JCP Series

The JCP series feature an innovative core material, enabling this product to be the first to offer high performance coupled with an attractive price. The core material used in the transformers is a new Fe-Ni magnetic with highly permeable cut-cores, allowing the design of an accurate measurement of revenue-grade clamp on the current probe.

 

Advantages of JCP Series

  1. The cut-core allows very small air gaps.
  2. Innovate type of spring technology increases durability by 30%
  3. Outstanding linearity and very low phase angle error.

JRFS Series

The JRFS series feature an innovative air core design, enabling this technology again to be the first to offer high performance coupled with an attractive price. The air core design used in the Rogowski coil current sensor is a new type of precision winding with perfect shielding, allowing the accurate measurement at revenue-grade in a flexible current probe.

 

Advantages of JRFS Series

  1. Specialized winding technology for the high precision measurement.
  2. Less influence of external magnetic field through perfect shielding technology.
  3. Use Silicone material for the housing to endure high temperature(up to 130℃)
  4.  With its flexible design, the JRFS series can fit into tight spaces where rigid CTs will not fit.
  5. The optional holding device ensures the Rogowski coil is securely seated on busbars with a thickness of 10-15mm.

Reference

Recently, KEPCO(Korean Electric Power Company) installed the JCP and JRFS series for power quality test equipment and smart meter portable test equipment in South Korea. The product gained the confidence on the utility, once again proving J&D’s high performance and quality technology.

 

JAGUAR 2400 Series

A major issue for branch circuit power monitoring market is how to improve revenue-grade metering of power quality as well as provide a branch circuit power meter.

J&D, which is the provider of an industry leading, revenue-grade energy monitoring platform for high density power consumers, has announced the launch of the JAGUAR 2400 series. It is a 21-channel branch circuit power meter with a three-phase power quality meter.

Most of all, JAGUAR 2400 series is the world’s forst branch circuit power meter that combines power quality revenue-grade metering with power quality monitoring.

The JAGUAR 2400 series can accommodate TOU(Time of Use) tariffs, has a data logger, current leak detection and up to 63rd harmonics for the first time in the world. It improves upon the industry’s method of using a balanced three-phase power quality meter, combined with a 21-channel branch circuit power meter.

The new version also removes complexity from revenue-grade metering platforms, by enabling J&D’s customer to monitor all pieces of power equipment in a data center on one platform at prices equal to, or better price than, competitors.

 

Advantages of JAGUAR 2400 Series

  1. Revenue-grade power quality metering
  2. Individual harmonics: 2nd~63rd(voltage and current)
  3. Real-time and data logger capability
  4. Leakage current monitoring

Remote Split-core CT Accessory

Our revenue-grade meter requires revenue-grade split-core CTs. Pair it with our compact high precision split-core CT.

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