General:

Lightning arrester also named as surge arrester is a device used on electrical power systems to protect the insulation on the system from the damaging effect of lightning. Metal oxide arrester (MOA) have been used for power system protection since the mid 1970s. It has a high voltage terminal and a ground terminal. When a lightning surge or switching surge travels down the power system to the arrester, the current from the surge is diverted around the protected insulation in most cases to earth.

 

Standards:

Ø  IEC-60099-4 Metal-oxide surge arresters without gap for AC systems

Ø  GB 11032 Metal-oxide surge arresters without gap for AC systems

Ø  JB/T 7617 SF6 type Metal-oxide surge arresters without gap

 

Features:

Ø  Reliable sealing performance

Ø  Excellent ageing performance

Ø  Secure pressure relief capability

Ø  High mechanical strength

Ø   Continuous innovation and development
 

Supply scope:

Ø  35~1000kV porcelain housed gapless MOA

Ø  66~750kV GIS gapless MOA

Ø  6~750 polymeric gapless Moa

Ø  35~500 polymeric line type MOA with series gaps

Ø  Complete set of gapless MOA for DC transmission project

Ø  Gapless MOA for electrified railway

Ø  Discharge counters and monitors for MOA

 

 

Application: protection for electric equipments and power grid in Substation and transmission

Other products:

1.      Oil-immersed & dry type power transformers

2.      Distribution transformers,

3.      Furnace transformers,

4.      Rectifier transformers,

5.      Substations and other kind of special transformers;

6.      Generator sets;

7.      H.V & L.V switchgears,

8.      Gas insulated switchgear (GIS),

9.      Power cables

10.    Other auxiliary electrical equipments;

11.    Grid-connected PV systems,

12.     Stand alone PV systems and solar heating systems for different utilization in industry and commerce.

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