The substation type arrester is used to protect AC electrical equipments of power plant and transformer substation from being damaged by atmosphere over-voltage and operation over-voltage.

Construction:

The metal oxide resistor column, together with the accompanying supporting construction comprises the active part of the arrester. The column consists of individual metal oxide resistors stacked on top of each other.

Technical  Parameter:

Characteristics:

1. Non-tracking and low erosion rates in polluted an non-polluted environments, long term weather ability,
2. resistance to thermal ageing,
3. UV resistance,
4. chemical resistance.
5. Tough, tear and impact resistance.

Normal service conditions:

1.The ambient air temperature is no higher than +40 degree. no lower than -40 degree.

2.The altitude above sea level does not exceed 2000m

3.Power frequency 48Hz~62Hz

4.Maximum wind speed does not exceed 35m/s

5.The earthquake intensity does not exceed 7 degrees

6.The voltage that long-time exerted shouldn't exceed its Max MCOV

more pictures:

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