A CASE STUDY OF OVERVOLTAGE PROTECTION OF A MICROWAVE REPEATER STATION

Ever since inception, the electric power and communication systems are exposed to dangerous overvoltage surges starting from lightning to service frequency temporary overvoltage waves with disastrous consequences. The operation of electronic devices in this environment had led to a situation wherein they are severely affected. All sorts of electronic equipment are at risk: this calls for an effective protection against transient overvoltages. It includes adequate equipment protection, inherent capability of the equipment to withstand overvoltage surges, good installation and a sound earthing arrangement. This paper describes an incident involving the exposure of wireless equipment and the operating personnel to frequent lightning activities in a hilly place and the need of a good installation practice, bette r earthing and adequate protection against direct lightning strokes

Ever since inception, the electric power and communication systems are exposed to dangerous overvoltage surges starting from lightning to service frequency temporary overvoltage waves with disastrous consequences. The operation of electronic devices in this environment had led to a situation wherein they are severely affected. All sorts of electronic equipment are at risk: this calls for an effective protection against transient overvoltages. It includes adequate equipment protection, inherent capability of the equipment to withstand overvoltage surges, good installation and a sound earthing arrangement. This paper describes an incident involving the exposure of wireless equipment and the operating personnel to frequent lightning activities in a hilly place and the need of a good installation practice, bette r earthing and adequate protection against direct lightning strokes