Currentoniot Current Monitor
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1 Piece (MOQ)
Residual Current Monitor
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As a well admired provider of Residual Current Monitor, we bring you a huge variety of unrivaled quality. Our team of experts uses only first-class raw materials to ensure that our product matches to the highest quality grades. It is the perfect solution for commercial application in both earthed and also non-earthed systems. The remarkable features like optimum performance and longer service life make it an interesting proposition. Additional InformationUnscheduled downtimes of machines and plants mean a considerable cost factor. By early detection of insulation faults DOLD insulation monitors help to prevent failures of electrical equipment and thus ensure a better operating reliability and plant safety. They are used both in earthed and also non-earthed systems, but differ in their function principle. In earthed systems (TN systems) DOLD residual current monitors detect fault current with the principle of differential-current measurement and are mainly used to avoid cost-intensive downtimes and to prevent the risk of fire which is latent in the case of slowly evolving insulation faults. In non-earthed systems (IT systems), the insulation resistance to earth of the system to be monitored is measured. Such systems are secured by insulation monitors the use of them in IT systems is required by law by the norm “Safety of Machinery” DIN EN 60204-1 or DIN VDE 0100-410. Thanks to deliberately kept simple functionality of DOLD’s insulation monitors customers benefit from a considerable cost advantage combined with the high quality standard accustomed from DOLD. Advantages At a glance: Save space thanks to compact design Cost-effective and easy-to-use by kept simple functionality Flexible by extended application range of our insulation monitors for systems up to 500V AC and 1000 Hz, i.e. also application for 400V three-phase systems Monitor DC systems up to 280V without auxiliary voltage Improve efficiency: avoid unscheduled downtimes and data losses Improve operational reliability and safety: monitor also at standstill, no interruption of operation in the case of single-phase-to-earth fault Better fire safety: detect slowly evolving insulation faults, minimize accidental arcs as frequent fire cause, split and separately monitor systems in fire- and explosion-prone areas Improve workplace safety: no malfunctions of machinery and systems due to earth faults Save time during maintenance and repair: reduce cost by early detection of insulation faults and well-aimed repair. Technology All conductors of the feeder to be protected (apart from the protective conductor) are guided through a current transformer. In a faultless system, the sum of all currents is zero. No voltage is induced in the current transformer. If fault current flows via earth, the current difference will cause a current in the current transformer. This is evaluated by electronics. Applications Differential-current and insulation monitors are used for early detection of insulation faults in applications where unscheduled downtimes of machinery would have serious consequences. They are used in earthed systems for reasons of efficiency and protection against fire and accidents, but they are required by law in non-earthed systems for the same reasons according to DIN VDE 0100-410 and DIN EN 60204-1. Applications include: Wood working industry: fire prevention Chemical industry: prevent the interruption of chemical production processes Automotive: prevent downtime of entire production lines if one partial area fails Food industry: prevent consequential losses, e.g. failure of a cooling plant Medical: prevent the failure of live-saving facilities Data processing: prevent data loss in computer centers, data processing equipment and systems. Moreover, insulation monitors are used to monitor cut off consumers, which are only needed in certain situations, but must then function without problems, flue gas extraction systems in case of a fire, for example.
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GIC’s state-of-the-art Current Monitoring Relays protect your mechanical apparatus from overloading and other conditions that might cause impairment. SUPPLY MONITORING SERIES CMR - CURRENT CONTROL Protection against Overload, Phase Loss, Phase Reverse and Phase Unbalance faults Wide range of sensing current : 1A - 45A Models for 1 Phase and 3 Phase systems Auto / Manual Reset selection Fail - safe protection Inverse time model with underload, locked rotor protection and selectable trip class Definite time model with underload and selectable start and trip time
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