Tel :0755-83217400
13714001037
Fax :0755-83217838
E-mail:abcph@126.com
LEM is the world's leading manufacturer of power sensors, but also a leader in the field of power sensors.
LEM
As early as 1972, LEM company was established in Geneva, Switzerland, focusing on the development and production of the current sensor based on Hall effect and current sensors on the first streetcar for Switzerland. As the company grows, LEM Group, Switzerland Stock Exchange in 1986 and was awarded the 2nd prize at Geneva Industrial Merit.
Isolated from the original secondary current, voltage and power sensors
High-speed trains, urban transport systems and freight trains and other public transport modes will provide the ideal solution to enhance the flexibility of transport, while reducing pollution and easing traffic congestion. Drive and control to solve the problems of these energy systems, power electronics is critical. The railway industry in the emerging technology have made new requirements, such as the demand for energy measurement, monitoring and motorcycles on the track continued to improve infrastructure maintenance problems.
LEM products in the railway field Typical applications include:
* the core of urban transport system converter (metro - tram - trolley bus)
* monitoring of rail locomotives
* Metro Station
* inverters, converters, rectifiers
• The auxiliary power supply
* circuit breakers, transformers, DC path
* control and safety systems
Energy and Form
* heavy locomotives, diesel generators
* mine locomotive
The use of precision electrical isolation design of the sensor range, and reliable. Current measuring range from 0.1A to the 20000A, the voltage measurement range from 10V to 6400V. It is able to protect the signals to the control signal and vehicle detection systems and turnout.
LEM sensor electromagnetic compatibility certification by the CE, in line with EMC standards. The series of electrical parameters of the sensor and environmental constraints to standard EN50155, leakage and creepage distances to meet the standards EN50124-1 requirements under the insulation.