BENDER est un leader mondial de la sécurité électrique. Les nouveaux appareils LINETRAXX® avec SensorPRO associent la meilleure technique de mesure haute définition à une communication ouverte dans un espace des plus restreints. Ils offrent de nouvelles fonctionnalités et conviennent entre autres choses à des applications industrielles, à l'automatisation des bâtiments et aux centres de calcul.
Les nouveaux appareils LINETRAXX® avec SensorPRO disposent de l'interface ouverte RS-485 avec protocole Modbus RTU et assurent des mesures à granularité fine jusqu'à 100 kHz. Par ailleurs, ils permettent d'économiser de la place dans l'armoire électrique et sont faciles à installer.
Les appareils LINETRAXX®, conçus de façon modulaire avec SensorPRO, se composent d'un module transformateur de courant et de modules enfichables en fonction des besoins. Les appareils compacts à un canal, sensibles à tous les courants, LINETRAXX® sont particulièrement adaptés à une utilisation dans un circuit terminal.
Qu'il s'agisse des exigences actuelles de la DGUV règlement 3 ou de celles de normes à venir - grâce à l'interface ouverte et aux modules électroniques enfichables, les appareils LINETRAXX® avec SensorPRO sont d’ores et déjà préparés à la maintenance prédictive et aux exigences futures de l'Industrie 4.0.
Against the background of key topics such as Industry 4.0 and the Internet of Things (IoT), Bender is increasingly confronted with the requirements of modern applications. As a result, highly flexible solutions that cover a wide performance range are now usually required. Furthermore, there is an increasing demand in the markets for smart sensors that can be easily and quickly integrated into existing installations and systems.
An essential requirement for the products is therefore the ability to communicate – if possible via universal interfaces and protocols. To generate added value such as preventive maintenance and high availability from measurement data, the sensors must be able to transfer all values and states to higher-level monitoring solutions in which they are evaluated and interpreted/further processed. Additionally, data granularity is also gaining in importance, so that a large number of sensors that are as small and simple as possible are being frequently used in modern plants.
Market-driven solutions for modern applications
The requirements being placed on industrial systems and installations in terms of high availability are constantly increasing. This means that it is also becoming increasingly important to equip existing applications with monitoring technology so that downtimes can be reduced, for example by assisting with preventive maintenance. Options include installing residual current monitoring systems (RCMS), which also contributes to a reduction of the disconnection times required for insulation tests in line with DGUV (German Social Accident Insurance) Regulation 3.
The AC/DC sensitive CTBS25 (type B) measuring current transformers convert system leakage and fault currents into an evaluable measurement signal. The devices are suitable for detecting fault currents with smooth DC components. The measuring current transformers can be used in DC, AC, and 3(N)AC systems. The measurement signal is evaluated using devices of the RCMS460/490 or EDS440 series, to which the measuring current transformers are connected.
The AC/DC sensitive MRCDB300 device series is used as additional protection (protection against indirect contact) in earthed systems (TN and TT systems) in which AC or DC fault currents may occur.
Part of these systems are particularly loads containing six-pulse rectifiers or one-way rectifiers with smoothing, such as converters, battery chargers, construction site equipment with frequency-controlled drives. When the response value IΔn2 (alarm) is reached, the output relays K1 and K2 switch.
By using an MRCDB300 module and a switching element with isolating properties, the device combination fulfils the requirements of IEC 60947-2 Annex M for an MRCD protective device.
The application is specifically intended for protection goals such as protection of persons, fire protection and plant protection. The switching element must not exceed a switch-off time of 20 ms.
The residual current monitoring modules each consist of the MRCDB300 evaluation electronics and a CTBC20(P)…210(P) series measuring current transformer core. To assemble a complete module, both the electronics and a measuring current transformer core are required; if ordered separately, these two components must then be plugged together and calibrated during commissioning.
The CTBC20P…210P series measuring current transformers feature an integrated magnetic shield and are suitable for applications with high load currents or inrush currents.
The CTUB100 series measuring current transformers are combinations of CTBC… measuring current transformer cores and CTUB10… electronic modules, which convert AC and DC currents into an evaluable measurement signal. The measurement signals can be evaluated using devices of the RCMA420/423 or RCMS460/490 series. The measuring current transformers are connected to the respective devices via a 2- or 6-core cable. They can be used in DC, AC, and 3(N)AC systems.
The CTUB101-CTBCxx measuring current transformers are intended for connection to devices of the RCMA420/423 series and are supplied directly from the evaluator with the supply voltage DC ±12 V via the 6-core cable.
The CTUB102-CTBCxx measuring current transformers are intended for connection to RCMS460/490. If the CTUB102-CTBCxx measuring current transformers are connected to an RCMS460/490 system, a DC 24 V power supply unit is required for the measuring current transformers, which is available as an accessory.
The measuring current transformer cores of the CTBC20P…210P series feature an integrated magnetic shield and are suitable for applications with high load currents or inrush currents.
Le module de surveillance de courant différentiel résiduel sensible tous courants est destiné à détecter des courants de fuite et de défaut dans des réseaux électriques mis à la terre jusqu'à 300 V et dans les charges connectées jusqu'à des courants nominaux de 32 A. Le module est conçu pour être installé dans des dispositifs de distribution tels que des PDU (unités de distribution d'alimentation), des coffrets de dérivation ou des prise multipleset est alimenté par 12…24 V DC.
Le RCMB131-01 est conçu pour être installé dans des PDU et des coffrets de dérivation. Le module peut communiquer avec un maître par le biais d'une interface RS-485 via Modbus RTU.
Le RCMB131-02 est conçu pour être installé dans des PDU et des coffrets de dérivation. Le module délivre la valeur rms du courant différentiel résiduel par le biais d'une sortie MLI qui est sortie et évaluée par un circuit de niveau supérieur.
Le RCMB132-01 est conçu pour être installé dans des PDU et des coffrets de dérivation. Le module peut communiquer avec un maître par le biais d'une interface RS-485 via Modbus RTU. Il est possible de connecter plusieurs appareils en daisy chain. A cette fin, le RCMB132-01 dispose de deux fiches de raccordement identiques pour RS-485 (alimentation en tension inclue).
Les produits de la série RCMB13x sont livrés dans des emballages collectifs et sont réconfigurés. Cela les rend particulièrement adaptés à l'intégration en série dans les systèmes de distribution d'énergie, les machines ou autres par les fabricants respectifs (OEM).
The residual current monitoring modules of the RCMB300 series are intended for measuring AC and DC fault currents in earthed systems (TN and TT systems). The modules are able to measure residual currents up to IΔ = 20 A in a frequency range of DC…100 kHz.
Two separately adjustable response values allow a distinction to be made between prewarning and alarm. When the response value IΔn2 (alarm) is reached, the output relays K1 and K2 switch.
The modules feature an RS-485 interface with Modbus RTU which can be used to transfer measured values and alarm values. Setting parameters is also possible via this interface.
The residual current monitoring modules each consist of the RCMB301 evaluation electronics and a CTBC20(P)…210(P) series measuring current transformer core. To assemble a complete module, both the electronics and a measuring current transformer core are required; if ordered separately, these two components must then be plugged together and calibrated during commissioning.
The measuring current transformer cores of the CTBC20P…210P series feature an integrated magnetic shield and are suitable for applications with high load currents or inrush currents.
