GLOBETEK represents world-class manufacturers of test and measurement systems in India. For the past 25 years, Globetek has consistently delivered on its promise of providing state-of-the-art solutions for test and measurement needs in India. Founded by Mr G.Venkatesh, an alumnus of the Indian Institute of Science, Globetek represents companies across USA, Europe and Japan.


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Traction Transducers: Application & Products

Traction transducers find excellent applications in public transport vehicles. The highly efficient units can save a lot of energy in the day-to-day applications. Globetek has partnered with LEM to distribute top of the line transducer devices in bulk. LEM transducers find an application in high-speed trains, wholesome city transit systems as well as various electric and coal powered automotive devices.

LEM devices help you make the most of energy that is imparted by the gasoline-powered vehicles. Their mechanical to electrical energy conversion efficiency puts them at the top of the energy-efficient transducer list. These devices are the first step towards a sustainable future powered by electricity. The devices can also be used to control as well as drive the electrical systems with high mechanical and electrical efficiencies. They are often used in conjunction with high-capacity invertors and converters to stabilize the current supplied to devices.

If you are looking for a mass-batch of LEM transducers in India, get in touch with us at Globetek today.

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Features of LEM Transducers

Some of the key features of the traction transducers by LEM include the following:

  • Effective isolation of the current and voltage components of the electrical power supply. The devices can isolate the current and voltage components instantaneously.
  • The traction transducer can handle and measure an excellent range of voltages all the way from 10 V to 6,400 V.
  • It can measure current in the range 0.1 A to 20000 A.
  • The device supports high modularity.
  • It supports non-contact as well as integrated bus bars chip for measurement of current.
  • You can mount the device with exceptional flexibility. The compact size and number of fixtures available with the device make it very easy for you to mount and dismount it from a vehicle.
  • The device support high-performance application with exceptional accuracy levels.
  • It has the shortest possible response time in the industry today that varies from nanoseconds to microseconds.


The rail industry is constantly evolving. Privatization of rail networks brought new requirements such as rail maintenance with the monitoring of points (switches) machines or signaling conditions. LEM can help to meet these standards thanks to new families of transducers. LEM provides the same control and protection signals for both on-board applications and wayside substations.

Main Applications for Trackside

To minimize train service interruptions due to equipment breakdown and to reduce lifecycle costs, it is key to do a preventive maintenance of crucial track equipment (points, crossing gates, signaling, rails…). Online monitoring helps to take the required preventive actions before abnormalities lead to failures.

For exemple, the current of the electric motor of a point machine can be measured by a transducerand monitored. Any variation from the normal current waveform indicates an early warming of equipment failure that will require preventive maintenance. A quick scheduled maintenance intervention will allow not to interrupt the rail traffic for a lot of costs saving.

Typical Applications for Trackside

  • Track objects monitoring
  • Tracks curcuits
  • Sub-stations (circuit breaker for transformers...)
  • Points machines
  • Crossing gates
  • Control and safety systems


Products for Trackside


Modes of public transport such as high-speed trains, city transit systems and freight trains provide the ideal solution to meet the increased demand for more mobility whilst helping to fight pollution and traffic congestion. Power electronics is essential for driving and controlling energy in these systems. For both electric or diesel trains, traction is provided by electric motors driven by inverters that rely on LEM transducers to measure, optimize and adjust the power sent to the motors, improving performance and reliability.

Main Applications for Traction


LEM transducers provide control and protection signals to power converters and inverters that regulate energy both to the electric motors (for propulsion) and to the auxiliaries (for air-conditioning, heating, lighting, electrical doors, ventilators, etc).

Voltage networks vary from one country to another. LEM transducers monitor them closely to ensure power electronics work accordingly.

Global systems for propulsion of mining trucks are similar to the ones used for diesel-electric railway locomotives. Current and voltage transducers enable inverter control which is essential for the efficient propulsion of trucks.

  • Main converter for urban transportation systems (metros - trams – trolleybuses),
  • Inverters, converters, rectifiers
  • Circuit breaker, for transformers, DC link
  • Rolling stock heavy traction, diesel electric
  • Auxiliary power units
  • Energy metering
  • Mining trucks


Products for Traction



Certificates and standards
Compliance with the highest industry standards

LEM products and processes comply with reference standards in the industry:

  • CE marking of LEM transducers in recognition of their electromagnetic compatibility
  • EN standards for traction-based applications:
  • EN 50155 for the electrical performances, environmental and safety constraints
  • EN 50121-3-2 for EMC
  • RoHS compliant
  • ISO TS 16949 certification of all production and development centers (Switzerland and China)
  • IRIS certification
  • Geneva Head Office since September 2007 (LEM Switzerland SA)
  • Beijing production sites since 2008 (LEM Electronics China Co. Ltd)
  • Sofia production site since 2016 (LEM Bulgaria EOOD)
Quality products and services: our priority

Based on our deep knowledge of applications and current measurement technologies, LEM develops both catalog and customized products which can be perfectly tailored to meet your needs in terms of performance, space requirement and cost.