Tag Archives: trabtech

Predictive Monitoring of Protective Devices for Continuous Protection and Availability of Signals

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Lightning strikes over city skyline

Lightning strikes over city skyline

Plant safety in the chemical and petrochemical industries must satisfy high demands – reliability and availability are crucial factors for continuous production processes. Signal interfaces are at far greater risk of surge voltages than power supply systems. This is a result of the numerous cables laid in parallel and the more sensitive input and output interfaces. Based on the risk potential and safety level required for the interface, a variety of surge protective devices are used. These are installed directly before the signal inputs to be protected. The circuits of these protective devices are adapted to the relevant signal types.

Have you thought of what would have happened in the event when any existing non-pluggable surge protective devices (SPDs) are overloaded without any sign of status indication? Continue reading

Powerful PV overvoltage protection

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The new VAL-MB product family from Phoenix Contact provides powerful and compact protective devices for photovoltaic applications with generator voltages of up to 1500 V DC. The protective devices are specially adapted to DC application requirements and certified by KEMA.

Longer inlet funnels and higher screw shafts provide additional protection against arcing. The product range includes protective devices for generator voltages of 600 V DC, 1000 V DC and 1500 V DC, as type-1/2 lightning current arresters, as well as pure type 2 surge protection devices. Variants are available with or without remote signaling contact. All protective devices have a short-circuit protection of 2000 A and can also be used in high-altitude plants up to 6000 meters in altitude.

Intelligent Surge Protection for Process Technology

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Phoenix Contact’s Plugtrab PT-IQ surge protection devices for MCR and process technology warn plant operators before protection of the plant is lost. To achieve this, each voltage-limiting component in the protective plugs is continuously monitored. If the performance limit has been reached as a result of frequent surge voltages, this is indicated by a yellow signal on the protective device and via remote signaling. At this time, the arresters are still functional and the plant is protected. However, replacing the component is recommended to prevent unnecessary servicing.

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Plugtrab PT-IQ Ex protective devices are available for intrinsically safe areas. These devices can be installed in Ex Zone 2. The intrinsically safe protective circuits can be routed up to Ex Zone 0.

Thanks to multi-level monitoring and signaling, the plant operator always knows the status of protective devices and therefore has an overview of surge voltage protection in the plant. This intelligent surge voltage protection is available with traditional screw connection technology as well as innovative push-in connection technology. A controller supplies up to 28 protection modules with voltage and allows for connection of a central remote monitoring system.

Preventive Maintenance with Lightning Current Monitoring

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The Lightning Monitoring System LM-S from Phoenix Contact provides information online about lightning strikes in plants and systems. As a consequence, service call planning can be optimized. This new system identifies and analyzes all of the important parameters of lightning surge currents based on the Faraday effect.

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Surge Voltage Protection for Field Equipment

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SURGETRAB surge voltage protection devices are for all commonly used standard signals that are installed directly to the field equipment. This type of installation saves time and money, and an additional connection box for accommodating surge voltage protection is no longer necessary.

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LINETRAB – Protects 4 signal wires on 6.2mm

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LINETRAB sets a new standard in the 6.2 mm class as the narrowest surge protection device for MCR technology. Now up to four signal paths can be protected at the same time. A comprehensive product range comprises suitable protective circuits for all binary, analog and intrinsically safe circuits.

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