Our surge arresters for medium-voltage applications offer reliable overvoltage protection for medium-voltage distribution networks and components for applications up to 72.5 kV. We offer a wide range of product families for all types of requirements.

medium-voltage surge arresters up to duty cycle voltages of 1.200 kV – for standard and specialized applications. Our permanent research and development and the concerted know-how in our factories give our surge arresters a leading edge in overvoltage protection.

Hitachi Energy surge arresters are made of metal-oxide (MO) resistors without spark gaps directly molded in silicone housing, in grey color, and designed and tested according to IEC 60099-4 and IEC 62848-1. Surge protection for a wide range of applications. AC / DC Railway networks; MV AIS & GIS switchgear; Transformers; Cable system protection

Eaton’s Cooper Power series distribution arresters provide superior overvoltage protection for any electric distribution system. They have set the standard for design and manufacturing of polymeric distribution-class arresters up to 36 kV.

Eaton combines metal (zinc) oxide varistor technology in a pre molded rubber elbow to provide overvoltage system protection in an insulated, fully shielded, sub mers ible, deadfront device with its Cooper PowerTM series metal oxide varistor elbow (M.O.V.E.) surge arrester.

MV Surge Arrester upto 45kV for substation protection from lightening and switching over voltages. In past 15 years, almost all high-voltage networks used MO arresters.

Oct 29, 2015 · Surge arresters, also known as lightning arresters, are an accessory often ordered on medium voltage transformers and reactors. They are typically connected between line terminals of a winding and ground. They provide a degree of protection to the insulation from high voltage surges. They are available for winding voltage ratings 2.4 kV and above.

Ensto VARISIL™ HE surge arresters are intended for the overvoltage protection of equipment installed on Distribution networks such as power transformers and any switching devices. They can be fitted with various accessories and connecting terminals. They comply with all …

Siemens surge arresters are an indispensable aid for insula-tion coordination in electrical power supply systems. Valu-able equipment such as transformers, circuit breakers, generators, motors, capacitors, traction vehicles and bush-ings, as well as complete switchgear, is optimally protected against lightning and switching overvoltages.

Applications include protection of medium voltage networks and equipment from switching and lightning surge related over-voltages in areas with relatively high iso-keraunic levels.