Inicio Remote Telecom Sites

BTS System: Proyecto Claro


Turnkey solutions: Power system for off-grid telecom sites.

Zigor places at the disposal of its customers the most complete offer of collaboration and participation, ranging from the initial project concept and its personalisation, to its after sales service in the field.

The system is capable of providing telecommunications equipment with power, autonomously and independently of the mains electricity. For this purpose, a photovoltaic solar power system has been provided with a high-capacity storage system based on gelified and sealed lead electrolyte batteries.

As a backup system, this system is capable of operating from an emergency generator that comes into operation in the case of a failure in the solar power and/or available energy in the accumulators. The power equipment is fitted with an auxiliary services system for radio services to supply the generators heating, cabin ventilation systems, and so...


Main and Auxiliary Panels
These elements operate with independent sources of current and their operation is a function of the solar radiation.

Panel concentrators
These are passive concentrating boards of the current from solar panels strings. From these boards, the current is sent to the main cabinet which houses the electronic regulators responsible for taking maximum power from the panels and providing the adequate transfer function for charging batteries with current. The main regulators of the power equipment and the auxiliary batteries have the same function.

Emergency Power Generator Management
The coordination of the power generator has been managed with an independent control. Control is carried out by monitoring battery voltage and the decision to start up the unit is made when a battery voltage value is detected.

Battery management
Batteries are connected continuously to the two main sources of current, which are the panels via the regulators and the unit via the rectifier group. The main LVD is installed between the power outputs and the accumulators and is responsible for preventing these from discharging below the minimum safety voltage level (adjustable value). The control of the LVD is independent and is equipped with a potential free contact for alarm. The LVD control has a hysteresis band to avoid on/off rebound due to the voltage increase when the typical consumption of the switch off cycle disappears.

Ventilation system
This is independent from the rest of the system and operates by taking power from the main cabinet converter. It switches on and turns off with its corresponding adjustable thermostats.
This topology allows the number of fans/thermostats to be replicated, and in this way the necessary redundancy secured and autonomous units are obtained. It is recommendable to tare the thermostats with a differential of one or two degrees between them. This allows a sequential start-up operation, avoiding surges and improving average consumption, so that when
partial ventilation is required, the complete consumption unit does not come into operation.

Emergency Generator Heating Unit
The unit heating system is supplied from the inverter. The emergency generator normally manages and decides when to start up.

Main Power Systems: Rectifiers

Auxiliary Battery Auxiliary Charger
This is a small power source that provides the auxiliary battery with power in order to allow it to recover while the emergency generator is in operation.

Input and Output Protections


Data sheet

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