Elenos T25000, Руководство пользователя

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Hand Book T25000 -
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FIRST PHASE OF INSTALLATION
Before describing the operational phases of the installation procedure, an indication of the ambiental
requirements of the location where the equipment is to be installed will be given. In the room
designated for installation, a means of removing the hot air generated by all the equipment should be
fitted. If the T25000 is the largest source of heat of the entire system, and if the ambient temperature is
25 ° C, at least 2000m³ per hour should be removed. If the temperature is 45 ° C then at least 3000m³ per
hour should be evacuated. Clearly, it is necessary to provide an equal amount of fresh air from outside
which must be filtered appropriately to avoid ingress of insects, dust, smoke and organic material. The
equipment can function normally at ambient temperatures between -5 and 45°C with a relative
humidity of 95%, non-condensing at 45°C. The line supply should be three phase with a voltage of
208/240 volts for delta connection (without neutral) and 380/415 volts for star connection (with
neutral). The power required to supply the T25000 is at least 24 KVA, taking account of the power
factor produced by the powerful anode rectifier. An efficient earth system must be provided to cater
for loss of current that can involve the chassis of the unit and other equipment in contact. Particular
attention should be paid to the connection with the radiating system which is especially prone to
electrical atmospheric phenomena. Before the antenna cable is fed to any enclosed space, an electrical
conductor with a section of at least 150mm² must be connected from the external conductor of the
antenna cable to a low impedance earth point dedicated to the antenna structure. Given the very low
values of parasitic inductance of the connections to the T25000, the amount of electrical energy of
atmospheric origin can only be partially controlled, in terms of personal safety, by earth connections.
To maximise safety of personnel, it is very important that the equipment is installed in a room which is
only entered by personnel on a temporary basis for reasons of maintenance, repairs or short checks. If
the installation room is entered frequently by personnel for reasons other than occasional service
operations on the transmitter, it is imperative that a metal grid, connected to an efficient earth, is used
to enclose the equipment in order to isolate it from the personnel. Having taken account of the
precautions previously detailed, the installation phase may now proceed. Remove all packing pieces
from the equipment used for transport and take care not to mislay any items included. Remove the
anode supply transformer from its transport case, taking care not to damage its windings and
connection terminals. Open all the equipment's panels and check the integrity of electrical connections
and the mechanical components of the RF connections; if any damage has been incurred in transit,
contact ELENOS for information regarding the guarantee. Remove the fixing bracket of the anode
power supply inductor which is no longer required for transport and is now dangerous!
Locate the rectangular plastic PVC tablet, supplied with the equipment, within the unit and place the
anode transformer on top, in the place clearly intended. The transformer is not fixed with bolts inside
the unit to avoid extra currents flowing between its external parts and the base of the equipment in
which it is located. Should the installation be made in seismic zones, the transformer should be lashed
to the internal structure of the unit using cord made of insulating material. The external body of the