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INTEGRATED POWER SUPPLIES AI power Quality (For Communication Services)

The power supply of telephone plants and FM/TV relay stations has always entailed numerous problems and specific needs which are difficult to meet,
With INTEGRATED POWER SUPPLIES, it ensures the following:
To assure the safety of operators working on the plants, according to the law;
To assure continuity of operation to the plants;
To build a compact distribution system for all loads usually present in relay stations;
To limit the costs of installation and management;
To allow a cheap and effective technical assistance.

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Description

CONTINUITY OF OPERATION
The continuity of operation required by an automatic repeater, oft en installed in practically inaccessible sites, must satisfy a variety of requirements, ranging from the prevalently technical to the economic, limiting the need for intervention on the equipment.
The first problem to arise, and probably also the most difficult to tackle, is that of protection against atmospheric discharges, practically omnipresent in repeaters on account of the sites they have to be installed in. Due to the coupling of electromagnetic fields and the conduction in cables, the effect of lightning spreads for several kilometres from the impact point.
On the other hand, other forms of protection, for example those against overloads and short circuits, are subject only to suitable dimensioning.
The use of earth leakage trips for protection against direct contacts must be ruled out as even the overcurrents of feeble intensity caused by factors such as merely even inductance can result in untimely opening of the circuit. The importance of the economic aspect lies not only in the costs of making and maintaining the equipment, but also in the question of audience return. In fact, failure to guarantee the customer full operation of the equipment constitutes an interruption of the service and, accordingly, a cost.

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