Siemens Surge Arresters
Definition of surge arresters
Surge arresters are used to protect high-voltage equipment in substations, such as transformers, circuit breakers, and bushings, against the effects of overvoltages caused by incoming surges. Such overvoltages can be caused by a direct or nearby lightning strike, an electromagnetic pulse, electrostatic discharge, or switching operations in the power supply system as well as in devices. Some overvoltages are very high in energy. The current from the surge is diverted through the arrester, in most cases to earth. Effective overvoltage protection requires different surge arrester types to be used according to the particular application.
Siemens Energy surge arresters for any requirement
Experience is most essential when it comes to reliability in medium- and high-voltage applications. Siemens Energy has been designing and manufacturing medium- and high-voltage surge arresters for standard and special applications since 1925. Continuous research and development, the wealth of Siemens Energy know-how, and comprehensive worldwide experience give Siemens Energy surge arresters a leading edge in overvoltage protection. Their uncompromising quality ensures a long service life and reliability in any application.
Siemens Energy surge arresters are an indispensable aid to insulation coordination in electrical power supply systems. Valuable equipment such as transformers, circuit breakers, generators, motors, capacitors, traction vehicles, and bushings, as well as complete switchgear, is optimally protected against lightning and switching over-voltages.
Siemens Energy surge arresters have been designed to meet the requirements of a wide range of common installation environments, from arctic cold to the heat of the desert and the dampness of tropical climates. They are available for any application from 3 kV up to 1,200 kV including special applications such as high-voltage direct current (HVDC) and FACTS systems as well as all kinds of compensation systems for electric power networks.
Product range:
3EL5 Surge arrester with silicone rubber housing and Cage Design
3EL1 Surge arrester with silicone rubber housing and Cage Design
3EL2 Surge arrester with silicone rubber housing and Cage Design
3EL3 Surge arrester with silicone rubber housing and Cage Design
3EP5 Surge arrester with porcelain housing
3EP4 Surge arrester with porcelain housing
3EP6 Surge arrester with porcelain housing
3EP3 Surge arrester with porcelain housing
3EQ1 Surge arrester with composite hollow core design
3EQ4 Surge arrester with composite hollow core design
3EQ3 Surge arrester with composite hollow core design