Fluxgate current measurement provides enhanced accuracy and stability
Key points:
- Measure DC and AC residual currents from 30mA to 2Arms at up to 100kHz
- Compliant with new norm IEC62020-1 saving time and periodic checks
- Best-in-class stability and accuracy
Taastrup, Denmark, February 2021…Danisense, the leader in high-accuracy current sense transducers for demanding applications, has launched its highly versatile series RCMH070IB+ Residual Current Monitor (RCM). Suitable for monitoring the residual currents in electrical power systems without the need for fast system shutdown, the Type B/B+ RCM can measure DC and AC residual currents from 30mA to 2Arms at frequencies of up to 100kHz, suiting it to a wide range of industrial applications, loads and generation sources. Significantly, the new RCM is complaint with the updated norm IEC62020-1. This means that it can used for remote monitoring without the need to perform periodic onsite checks.
Featuring a 70mm primary cable / busbar aperture and user-selectable settings for frequency range, integration time and rated residual operating current, the RCMH070IB+ RCM product also features an analogue 4-20mA output. This represents the real-time True RMS (TRMS) value of the measured residual current for interfacing to, for example, a PLC. Additionally a free potential relay output (NO / NC) with user-selectable rated residual current limit can be used to provide a warning or even system shutdown if the TRMS residual current measurement exceeds the preset value. An LED provides a visual indication of the status of the relay output. Built-in test and external test controls are provided for regular testing of the RCM. The RCMH070IB+ requires only a single 24Vdc power supply.
Comments Loic Moreau, VP marketing at Danisense: “These new RCMs use our Fluxgate current measurement technology with fixed excitation frequency to provide enhanced accuracy and stability. Applications include condition-based monitoring of insulation health; high voltage insulation testing; mission-critical installations in data centres and medical facilities; DC power systems and high frequency loads.”
More details of the Danisense range of RCMH070IB+ RCMs are available at: www.danisense.com/products/residual-current-monitoring
DANISENSE: Precision – Innovation
By combining complex magnetic performance with advanced electronics Danisense provides efficient and precise solutions that match the requirements of worldwide customers in demanding industries. Danisense was founded in 2012 and today is based in Denmark and Japan. The company’s founders and key employees are highly-experienced and possess specialized knowledge about high precision current transducers, enabling Danisense to create solutions that enable its customers to quickly and easy measure AC and DC currents with accuracies down to 1ppm. Its products are of the highest quality and have an extremely flat frequency response and outstanding DC stability.
