Trafag Sensors and Monitoring

Description

Trafag Sensors is one of the world’s leading suppliers of high-quality sensors and monitoring devices for pressure, temperature and SF6 gas density. In addition to a wide range of standardised, configurable products, Trafag also develops tailored solutions for OEM customers. Trafag’s pressure transmitters, pressure switches, temperature transmitters and thermostats are used in shipbuilding, hydraulics, the railway industry, large engines, zones at risk of explosions (EX), water treatment systems, test benches, and more. The SF6 gas density sensors and SF6 gas density monitors are used for high- and medium voltage switchgears.

About Trafag Sensors and Monitoring

Trafag was founded in 1942 and is based in Switzerland. The company has an extensive distribution and service network in over 40 countries worldwide. This enables the company to provide individualised, competent customer support and guarantees fast service. High-performance development and production departments not only guarantee the fast and reliable delivery of our high-quality and high-precision products, but also ensure that customisations can be implemented in no time at all.

Our passion is to develop and produce the most reliable sensing solutions that empower our customers to run safe and sustainable systems. In multidisciplinary teams we achieve our goal of providing our customers an excellent service and high quality products – for markets like transport (such as railway, large engines, marine vessels), for sustainable industries (like hydrogen and wind power applications) – and just recently also for electric drives. We are the worldwide market leader in the development and production of sensors for gas density monitoring in power grids.

Thanks to our well-coordinated global sales team, we are close at hand – wherever you as our customers need us. With our professional competence and our creativity, we have already mastered many of our customers’ sensor challenges.

Application and solution-oriented

The direct availability of these resources enables Trafag to be extremely flexible in the areas of development and production as well as in its perception and implementation of customer requirements. Thanks to modular engineering, Trafag is able to efficiently adapt its standard products to the specific needs of customers and to develop special OEM solutions.

Market-oriented and always within reach

Trafag maintains an active presence in over 40 countries. A great number of customers in wide-ranging industrial sectors such as mechanical engineering, hydraulics, engine manufacturing, shipbuilding, railway technology or high-voltage technology appreciate the cooperation offered by our technically competent customer advisory service.

Adaptable and efficient

The ability to produce and manufacture its strategically important components in-house means that Trafag can both mass-produce and manufacture on a small scale at short notice. Rigorous quality management in accordance with ISO 9001, state of the art production facilities under clean room conditions and stringently monitored production processes ensure that Trafag meets the highest quality demands.

Trafag Sensors and Monitoring Industries

Railway

The manufacturers of units and systems for the railway industry trust in the quality of Trafag products. Their ideas and wishes are always a challenge for Trafag and stimulate the company regularly to develop new, innovative products.

Trafag’s products are used in railway technology, for example:

• Air-conditioning systems (Pressure monitoring for cooling compressors, room temperature monitoring)
• Brake systems (Pneumatic and hydraulic brake systems, emergency brake systems)
• Propulsion (Monitoring of pressure and temperature in water or oil circuits of motors, gearboxes and in cooling circuits of current converters)
• Lubrication systems (Pressure monitoring for automatic lubrication systems)
• Control and safety systems (Overload control, door-closing systems, fire extinguishing systems)
• Pantographs (Pneumatically actuated pantographs)
• Diagnostic systems (Mobile units for testing pressures on rail cars, hydraulic monitoring systems on railway switches)
• Maintenance systems (Sanding systems, track tamping machines, rail milling machines for reprofiling the rail head)

Large engines

Manufacturers of large combustion engines for mobile and stationary applications trust in the quality and reliability of Trafag products. Robustness and long term stability are essential for the smooth operation of engines for locomotives, ships, pumps in the oil and gas industry or for gen-sets.

Trafag products are used for monitoring of pressure and temperature of

• fuel
• cooling
• lubrication
• air intake
• common rail
• crank case
• combustion pressure
• starter air pressure

Shipbuilding

Thanks to many years of experience in this market, Trafag products are perfectly adapted to the special needs on the high seas and have gained acceptance through their reliability and robustness – even after decades of use.

Shipbuilding – Pressure and temperature monitoring solutions

Since more than 50 years, Trafag has been a trusted partner in the maritime industry for pressure and temperature monitoring instruments. We meet the continuously rising expectations of the shipbuilding industry in respect of safety and reliability of our products through constant innovation and close partnerships with industry leaders. Ship docking times are short and spare parts are needed quickly. Worldwide Trafag branch offices and distributors ensure that instruments can be delivered to any port in minimal time.

Trafag’s products are used in shipbuilding, for example:

• Engines (Monitoring of pressure and temperature of lubricants, fuel, intake air, turbo charge, cooling water or common rail injection)
• Hydraulics (Hydraulics on deck cranes, cylinders or line pressure)
• Pumps (Monitoring of pump pressure of various media also for explosive areas)
• Filling level (Level monitoring in ballast tanks or water ingress control systems)
• Ballast water (Pressure monitoring in physical and chemical treatment units)
• Gears (Pressure and temperature monitoring of lubricant)
• Compressors (Monitoring of inlet and outlet pressures prior to and after compression)
• Separators (Preparation of fuel oils and treatment of bilge water)
• Steering (Pressure monitoring of hydraulic oil)

Hydraulics

Trafag pressure transmitters are used in applications from heavy construction and agricultural equipment to high accuracy test benches. They are proven for long term stability in extremely harsh environments from the dusty heat of deserts to the icy cold of sub-arctic forests. The reliable pressure transmitters with great long-term stability are highly prized for stationary hydraulics as well, for they avoid costly production interruptions.

Trafag’s products are used in hydraulics, for example:

• Agricultural and forestry machines (Tractors, harvesting machines, transport machines)
• Renewable energies (Rotor control in wind power plants, solar tracking for photovoltaic systems)
• Construction machines (Excavators, mobile cranes, concrete pumps and mixers)
• Communal and special vehicles (Garbage collection, heavy transporters, firefighting vehicles)
• Machine and plant construction (Injection moulding machines, forming presses, stretch-blow machines)
• Test and inspection installations (Chassis test benches, material inspection systems, inspection of hydraulic components)
• Hydraulic components and subsystems (Valve block systems, power packs, tank monitoring)

Test and measurement

On-road tests for passenger cars, carried out in extremely harsh environments from the dusty heat of deserts to the icy cold of sub-arctic forests, are often also putting the measurement equipment to its limits. Whereas failure of vehicle sensors is expected to a certain degree, the testing equipment must not fail at all – an undetected signal drift could put the entire test cycle results into question. Therefore, only the most robust and reliable sensors should be used for test and measurement instrumentation.

Unparalleled reliability and quality

Trafag test and measurement pressure transmitters are based on sensors and mechanical design concepts which have been proving their robustness and reliability under extreme conditions in mobile hydraulics applications over decades. A thin film on steel sensor technology geared towards maximum longterm stability, advanced production processes and highest quality standards provide the basis for Trafag’s pressure measurement instruments – built to last where others fail.

Trafag’s products are used in testing and measurement technology, for example:

• Engine dynamometer
• Brake test stands
• Under hood on road tests of engine parameters
• Mobile power train test equipment
• On board pneumatic and hydraulic brake testing
• Test benches for hydraulic components such as valves, power packs and cylinders
• Monitoring of cooling systems for stationary and mobile lifetime and endurance testing

Hazardous areas

We continuously meet the rising expectations in respect of safety and reliability of our products. These products provide reliable functionality in various hazardous zones with ATEX and in many cases also IECEx certification.

Ex-Product lines for pressure and temperature control

Trafag offers a wide range of EX-, ATEX- and IECEx approved products for pressure and temperature monitoring. These products provide reliable functionality in various hazardous zones, with a guaranteed safety operation. In addition to both CE and ATEX-conformance, Trafag products are also extremely fail-safe.

Pressure transmitters

Trafag‘s mechanical pressure switches offer high vibration resistance and switchpoint accuracy in combination with an extraordinary rugged design for years of maintenance-free operation in rough conditions. Different sensors based on bellow, membrane and piston principle cover a wide range of pressure ranges, media and load cycle profiles.

Pressure switches

Trafag‘s mechanical pressure switches offer high vibration resistance and switchpoint accuracy in combination with an extraordinary rugged design for years of maintenance-free operation in rough conditions. Different sensors based on bellow, membrane and piston principle cover a wide range of pressure ranges, media and load cycle profiles.

Thermostats

For 70 years Trafag thermostats have proven their robustness in order to withstand the most adverse environmental conditions. Industry usage ranges from air conditioning applications to engine and ship manufacturing and even to offshore oil and gas platform production. The appeal of Trafag thermostats lies in their high switching point precision even after decades of operation under harsh conditions without maintenance.

Gas Density

Sulphur hexafluoride (SF6) is used in gas insulated switchgear because of its outstanding insulation and spark extinguishing (arc-quenching) properties. It thus makes it possible to set-up complex and safe ­power distribution systems even in large cities. The insulation strength depends basically on the gas density.

The safety of the facility is guaranteed when the correct level of gas density is maintained within the enclosed systems. The tightness of the installation has to be checked and controlled constantly as a leakage would result in a decrease in the insulation properties. Because SF6 is a strong greenhouse gas, strict regulations regarding the SF6 consumption have to be met by the switchgear operators in an increasing number of countries. These regulations stipulate a permanent monitoring of gas leakage which is done with gas density monitors or gas sensors.

Challenges and impacts for maximum safety and accuracy

Most current conduction parts of high voltage switchgear, circuit breakers and transmission lines are mounted in pressure compartments filled with efficient insulation gases. Sulphur

hexafluoride SF6 gas is commonly used. Alternative insulation-gas mixtures, that are less harmful to the climate, steadily grow in market share. The insulation strengths of these gases depend basically on the gas density. As the dielectric strength capability of gas-insulated systems is obtained by the gas density, these compartments are filled to several hundred kPa pressure to prevent internal arcing and short circuits even over short distances.

Typical applications for SF6 and alternative insulating gas monitoring

• Gas-insulated switchgear (GIS) and switching stations
• Circuit breakers (generator, live and dead tank)
• Gas insulated transmission lines (GIL)
• Gas insulated transformers (GIT)

The Products of Trafag Sensors and Monitoring

Sensors for pressure, temperature and gas density is what Trafag stands for. Decades of experience and our clear focus allow us to constantly improve quality and performance of our products and processes. And you get instruments which are built to last where others fail, with a long-term accuracy and robustness you can rely on.

Pressure Transmitter

Trafag pressure transmitters are used for electronically measuring and evaluating pressure. Over the decades they have proven themselves in a multitude of demanding applications in harsh environments. They are available in many different designs to suit pressure and electrical connections, measuring procedures, electrical output signals and certifications (CE, EX, rail and ship). Superior technology and precise manufacturing ensure that the transmitters work perfectly. This is especially important in applications where high requirements are placed on long-term stability, vibration resistance, electromagnetic compatibility, shock resistance or temperature insensitivity.

Electronic Pressure Switches

he robust electronic pressure switches from Trafag monitor the pressure behavior of liquid and gaseous media, e.g. in plant construction and mechanical engineering, hydraulic systems, process engineering, rail vehicles, shipbuilding or in water treatment. The superior technology and precise production guarantee a faultless functioning even where vibration resistance, electromagnetic compatibility, shock resistance or temperature insensitivity are a prerequisite. Compared to mechanical pressure switches, the electronic version can be used where a power supply is available and the advantages of the electronic pressure switch are utilizable.

Thanks to a lack of wear, the switching point accuracy remains constant and precise over the entire service life, even with a very high number of switching cycles. Thanks to various functions, such as the large hysteresis setting range (switching difference), the selectable delay time, and other options, e.g. of the window function, is the application area very diverse. Because of other features, e.g. the pressure display and the manual adjustment of the parameters, the electronic pressure switches bring high flexibility to the work.

Electromechanical Pressure Switches

Trafag’s electromechanical pressure switches provide high vibration resistance and switch point precision in combination with an extremely robust and durable design. Trafag’s electromechanical pressure switches that can be operated for decades without requiring maintenance, even under harsh conditions. Various designs with bellows, membrane and piston sensors cover a wide variety of pressure ranges, media and load profiles for many different applications.

Thermostats

For 70 years, Trafag thermostats have proven their robustness in the most adverse environmental conditions. The appeal of Trafag thermostats lies in their high switching point precision even after decades of operation under harsh conditions without maintenance. Various sensor and casing designs cover a wide range of temperatures and possible applications. and many products :

• Temperature Transmitters
• Temperature gauges

Gas density

Trafag stands for precise, reliable and maintenance-free instruments developed for the monitoring of SF6 and other gases in the field of high- and medium-voltage switchgear. Trafag gas monitoring devices measure the gas density directly, i.e. SF6 Gas Density Monitors, with the unique gas density reference principle or the patented quartz tuning fork technology, i.e. SF6 Gas Density Sensors, or by combining both principles, i.e. SF6 Hybrid Gas Density Monitors. They thus offer the most reliable solution on the market by directly measuring the SF6 gas density. Trafag guarantees outstanding accuracy and operation in the widest temperature range on the market. 

Source : www.trafag.com

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