Siemens Manuals

The document introduces a surge arrester called 3EL2, which provides superior protection and is lightweight with strong performance.

The 3EK7 medium voltage silicone insulated surge arresters from Siemens are designed to provide superior protection against power surges for the equipment in electrical distribution systems with operating voltages of up to 72.5 kV. The product is highly resistant to all kinds of environmental pollution, has excellent performance in dealing with earth faults and short circuits, and is made of lightweight and durable silicone rubber material.

This document describes the features and characteristics of 3EP porcelain housed surge arresters, including their reliability and application range in medium and high voltage systems. The products offer excellent overvoltage protection and can be used in various environmental conditions.

3EQ composite housed surge arresters save money and space, gaining reliability. With 3EQ used as a support, fewer post insulators are required for installation, thus saving both money and space.

This document describes Siemens' 3ES series surge arresters, which are suitable for high voltage systems up to 800 kV. These arresters are metal-enclosed and SF6-insulated, providing long service life and high reliability. They are particularly suitable for protecting gas-insulated switchgear and transformers.

This file is the specification of Siemens' 3ES series surge arrester, which introduces the features of this series of surge arresters, including excellent pollution layer characteristics, high mechanical stability, extremely reliable pressure relief behavior, etc. This series of surge arresters are suitable for various applications and have economic, practical, stable continuous running, excellent protection level and loading capacity.

The document introduces the complete range of Siemens surge arresters for railway applications. Detailed information about the outstanding 3EB and 3EC product lines can be found here.

3AE-SION vacuum circuit breaker is the latest generation of products developed and produced by Siemens in combination with 30 years of vacuum product design and operation experience and for the Chinese power market. It integrates the latest German technology and represents the latest development direction of vacuum switches. The circuit breaker adopts large creepage insulation design and is equipped with the latest developed large creepage vacuum arc chamber, which is more suitable for the technical standards and full insulation operating conditions of China's power system.

SION vacuum circuit-breaker is a new medium voltage vacuum circuit-breaker product launched by Siemens. It has the advantages of compact size, multi-function and flexibility, and can be widely used in various medium voltage distribution systems.

Siemens 3AH vacuum circuit breaker is an excellent vacuum circuit breaker with stable insulation performance, constant contact resistance, high breaking capacity and so on. Under normal conditions, 3AH vacuum circuit breaker is maintenance-free within 10000 operations.

LZZBJ9-10A4(C2)G,GIS12-t,LZZB8-10D7,4MA72RZI-10 parameter table(5A), this product has a rated primary current of 50A, a rated voltage of 7.2-24kV, and optional secondary currents of 5A, 10A, 15A, 20A, 25A, and 30A. The rated short circuit current is 25kA/1s or 45kA/2s, and the total core factor does not exceed the maximum coil number.