The function of a lightning arrester is to protect electrical equipment and its electrical network from excessive electrical voltage. This component is a crucial accessory to increase the reliability and resistance of power plants. Powerindo supplies three series of lightning arresters with different resistance parameters, namely: 

• HY10W2 – 21 (21kV)
• HY10W2 – 21 (24kV)
• HY10W2 – 21 (27kV)