Any type of current flow creates a proportional magnetic field, and DC current transducer products measure this generated field using Hall Effect technology. Hall Effect is defined as the generation of a magnetic field perpendicular to the current and a voltage difference across an electrical conductor transverse to an electrical current in the conductor. This article discusses how Hall Effect devices work, their limitations, and how they can be improved.
Understanding Hall Effect devices
A Hall Effect-based transducer, such as the one contained in a RōCoil TCA-5-HV-KIT, is generally composed of a signal conditioning circuitry, a core, and a Hall Effect device.
Are you looking for a split core current transformer with excellent performance? Aim Dynamics is introducing the eGauge Meter 3-Rope CT Kit 1% Accuracy, a power monitoring meter which measures electric power, and depending on how many registers you select, is capable of recording up to 30 years’ worth of data within its internal memory.
The eGauge is outfitted with a solid state memory, data logger, and a webserver with all three as part of a single device. It contains three voltage input channels which allows it to monitor single-phase systems and three-phase systems.
Flexible current transformer distributor Aim Dynamics is proud to announce that it now offers Power TakeOff Cellular Kit Monthly Services to help its customers monitor energy consumption more systematically.
Aim Dynamics has always strived to deliver great value to its consumers by supplying them with supreme quality materials to aid in the management of efficient energy consumption. One of the most recent additions to its array of power monitoring products is the Power TakeOff Cellular Kit + Service.
As a split core transformer, flexible transformer, and AC and DC current sensor distributor, Aim Dynamics is always excited to carry the latest power monitoring equipment on the market. That’s why the company is proud to announce the addition of the 5A Rope Kit with High Voltage Power Transformer – RōCoil TCA-5-HV-KIT to its product line which will allow users to take advantage of the broad current range and easy installation offered by the RoCoil Flex Probe CTs.
As a three-channel integrating transconductance amplifier (TCA), the RoCoil TCA-5 converts the 131mV/1000A electrical output signal from the RoCoil current sensor to a 5 amp AC current, thus emulating a traditional current sensing transformer. It is factory-calibrated to work with DENT RoCoil CTs (131mV/1000A).
Like any other device, current sensors and transformers must have at least one ground, namely in low-voltage circuits (below 1,000 volts). Although most systems are protected against sudden surges, it pays to add extra insurance to ensure the safety of the circuit, be it a solid-core, split-core, or Rogowski coil.
Grounding attaches a less-resistant conduit to the earth to provide as a return line for an excess charge, particularly one provided by lightning. Electricity follows the path of least resistance, so a ground connection can keep devices working and save lives. The earth is a poor conductor of electricity, after all, making it a suitable detour for excess voltage. Continue reading
Energy monitoring can lead to energy savings. This, in turn, can lead to benefits for the bottom line and the environment. Flexible current transformer suppliers like Aim Dynamics can provide you with the energy monitoring tools you need to track your electricity consumption. One of the company’s most revered products, the eGauge, can help you identify, plan, and execute energy-saving measures in a systematic way.
What is the eGauge?
The eGauge is a stand-alone product that can reduce the power usage of a commercial or residential property. It can be integrated with certain systems if you want to take your energy savings to the next level.
Solid and split-core current transformers and transducers work like a charm, but their rigidness may not work to the benefit of some circuits. Solid-core CTs are just as they appear—solid slabs that require shutting the power down to enable safe installation. Split-core CTs don’t require this step but can eat up a lot of space in the circuitry.
Fortunately, flexibility and versatility come in the form of a third type of CT: the Rogowski coil. Named after German physicist Walter Rogowski, the coil features the accuracy of a solid-core CT and the ease of installation of a split-core CT, yet works the same way as the two. Inside its colored tubes is a helical ring that responds to the conductor’s electromagnetic field. Continue reading