YH5WZ-51/134E

Description

Organic polymeric housed Zinc oxide arrester for AC transmission and transformation lines is a new type arrester specially designed for reducing the tripping rate of system caused by lightning fault, it is parallely connected on two sides of insulator (string) to limit the lightning over-voltage and improve lightning proof level of lines. Main installation mode is suspension type (suspend on the power transmission tower), also stake type installation is available.

The polymeric housed metal-oxide arresters (suspension type, stake type) for lines produced by our company are mainly applied to power transmission and transformation systems of AC 10~ 220kV, used to limit various over-voltage situations that may arise in power transmission and transformation circuits,guaranteeing safety running of power transmission and transformation lines.

Executive standards for production of the products are GB11032-2000(eqvIEC60099-4:1991) Metal oxide surge arresters without gaps for a. c.systems, JB/T8952-2005 Polymer-housed metal oxide surge arresters without gaps for a.c. systems, JB/T10497-2005 Polymeric housed metal oxide surge arresters with series gap for a.c. electric power transmission line,JB/T8459-2006Designation for surge arrester products.

Product Feature

1. It is made by moulding at a time from a model, good sealing performance, special structure, dampproof and explosion-proof;

2. Good heat dispersion, strong over-voltage absorption capacity;

3. Compact volume, light weight, flexible installation,crashworthy, high tensile strength, will not be damaged during transportation.

4. It is most suitable for transmission lines which has low lightning proof level and has high lightning tripping rate; hills and mountainous areas where are droughty and rainless; towers of high earthing resistance and cross-river towers of large span;occasions have high operating over-voltage and need to limit before entering into the transformer substation; seriously polluted areas.

Condition of use

1. Ambient temperature shall be within-40℃~+40℃;

2. Altitude shall not exceed 2000m (give clear indications when placing order for plateau areas)

3. Frequency of power supply is 48Hz~62Hz;

4. Max wind velocity shall not exceed 35m/s;

  5. Areas where the seismic intensity up to and including Ms7;

6. Swing of Lightning Arresters is permissible.We should consider the suspension mode and stake mode according to the tower shape.