Power Systems for Telecom

Power Systems for Telecommunication, Security and Control Applications

Telecommunications and security applications are typically located far from the reach of the grid lines. In other cases, the costs of infrastructure and other power alternatives are too high. Solar Power solar energy systems were developed to provide a reliable cost-effective source of energy for telecom and security systems for such remote locations

Solar cellular towers : Cost estimate of diesel savings

arrow VSAT
arrow IMAX
arrow Antennas
arrow Access points
arrow RF end points Security systems
arrow Electric fences Cellular repeaters

System Description

The systems are designed to provide either DC or AC voltages (telecom systems are be normally

12/24/48VDC). The systems provide sufficient energy for the specific application and store the energy in maintenance-free batteries. It will provide energy even on rainy days, depending on your specifications - up to 7 days without sun. The systems installation is simple with virtually no maintenance.

    System Components
arrow Photo-Voltaic Panels Charge Controller
arrow Deep Cycle Maintenances free Batteries
arrow Outdoors mounting structure and closet

System Options

Temperature compensated battery charging Data logging / Remote monitoring Technical Specifications

Solar Photo Voltaic (SPV) Module

Solar Photo Voltaic (SPV) module array to be of high efficiency made of crystalline silicon solar PV cells. The cells are hermetically sealed under toughened high transmission glass to produce highly reliable weather resistant modules.

Power output guarantee offered for the SPV module shall not be for less than 15 years in any of the climatic condition prevailing in India. For minimum stipulated life, the derating factor of 0.5% per year of SPV system/module rated power is permissible. The SPV module/system shall deliver at least 92.5% of its rated power in 15th year also.

Individual Solar module rating shall not be less than 125 Wp at STC (Higher ratings can be used) and shall meet following minimum requirement :

arrow Efficiency of cell ?c = 14%
arrow Efficiency of module ?m = 13%
arrow Fill factor shall be better than 70%.

The SPV modules shall satisfy the environmental test conditions as per IEC-68- 2-2 Test Bb, IEC-68-2-1 Test Ab, IEC-68-2-14, IEC-68-2-38, IS 9000 (PART16), Clause 16.0 of QM- 333, & IEC : 61215

Insolation- Main insolation at any panel kept at optimum tilt at place where the solar panel is to be used shall be 4.5 Kw hour per m2 per day.

Module Mounting Structure

Structure shall be designed in accordance with the latitude of the place of installation. The steel for the mounting structure shall be as per IS 2062: 1992 and withstands the wind speed of 200 KM/hour. The design/drawings of the mounting structure shall be supplied. The array structure shall be so designed that it will occupy minimum space without sacrificing the output of SPV panels. Structure shall have suitable anti theft measures to prevent easy removal of Solar Modules.

Array Junction Box

The junction box shall be made of FRP/Thermoplastic with IP65 protection. Metal oxide arrestors shall be provided inside the array junction boxes.

Battery Bank

The battery shall be of 2500 AH (1250 AHx2) 48V (24 cell)) VRLA GEL type (deep- cyclic), suitable for SPV application i.e. slow rate of charge and discharge.


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