LEM completed its range of transducers dedicated to leakage current measurement
LEM introduces the DVC 1000-P model for insulated nominal voltage measurements in traction and industrial applications. This device measures a nominal voltage of 1000 VRMS and incorporates isolating amplifier technology. Despite achieving very high levels of isolation with a safety insulation voltage of 4,2 kV, the DVC 1000-P transducer is really compact, measuring only 37 x 43 x 23,5 mm and can be mounted on printed board for a total volume of only 37,4 cm3.
Typical sensors for the same nominal measurement using galvanic insulation are bulky whereas DVC 1000-P offers significant savings in terms of space. It also offers high levels of accuracy and temperature stability.
LEM developed the DVC 1000-P to be fully compliant with the International Railway Industry Standards (IRIS). The features set of the DVC 1000-P voltage transducer also makes it an excellent fit for a broad range of small-to-medium voltage measurements in industrial markets. It also utilizes materials that comply with all relevant fire and smoke requirements that are mandatory in railway applications.
LATEST issue 3/2020
The thermal characteristic of the protected object is crucial; for example the electric cable, the wiring harness or the semiconductor switch in the connected control unit. Instead of safety fuses or electro-magnetically triggered mechanical contacts, electronic fuses contain semiconductor switches along with their control logic including protective and diagnostic functions