Solar Lighting - Exporter, Importer, Manufacturer, Service Provider, Distributor, Supplier, Trading Company, Chennai, India

Home Page

Company Profile

Showroom

Electronic Ballast LED Lighting Solar Lighting Copper Ballast CFL Fittings & L Grace Patti Fittings PVC Fittings Street Light Garden & Gate Light Mirolta Industrial Fittings Soft Light & Para Square Mirror Optic Fittings Bulk Head Fittings

OHMSTRONICS LIGHTING SOLUTIONS

Solar Lighting

To inquire, Select Product/s & Click on

Product Code : 03

[Select]

Product Specification

OHMS SOLAR LIGHT SPECIFICATION

DEFINITION
A stand alone so photovoltaic street lighting system comprises a compact fluorescent lamp, lead acid battery, PV module(s) control electronics, inter-connecting wires / cables, Module mounting hardware, Battery box, Operation, instruction and maintenance manual.
DUTY CYCLE
The system should be designed to automatically switch ON at dusk. operate through out the night and automatically switch OFF at the dawn. under average daily insolation of 5 kwh/sq.m. on a horizontal surface
LAMP
1. The lamp will be of compact fluorescent (CFL) type, either 4 - Pin or 2 Pin type, with a rating of 11W. For the 4 - Pin type CFL. adequate pre-heating circuit must be provided.
2. The light output from the lamp should be around 900 +5% lumens Also please see (iii) of V given below.
3. The lamp should be housed in a weather proof assembly suitable for outdoor use, with a reflector on its back. While fixing the assembly, the lamp should be held in a base up configuration.
BATTERY
1. Flooded electrolyte type positive tubular plate. low maintenance lead acid battery
2. The battery will have a minimum rating of 12V 75 Ah (at C/10) discharge rate.
3. 75 % of the rated capacity of the battery should be between fully charged & load cut off conditions.
CELECTRON
1. The inverter should be of quasi sine wave/sine wave type. with frequency in the range o 20 - 35 KHz. Half-wave operation is not acceptable.
2. The total electronic efficiency should be at least 80 %
3. No blackening or reduction in the lumen output by more than 10% should be observed after 1000 ON/OFF cycles (two minutes ON followed by four minutes OFF is one cycle)
4. The idle current consumption should not be more than 10 mA
5. Electronics should operate at 12 V and should have temperature compensation for proper charging of the battery through out the year.
6. Necessary lengths of wires/cables and fuses should be provided.
7. The PV module will be used to sense the ambient light level for switching ON and OFF the lamp
PV MODULE (S)
1. The PV module(s) shall contain crystalline silicon solar cells
2. The power output of the module(s) under STC should be a minimum of 74 W Either two module; of minimum 37 W output each or one module of 74 W output should be used
3. The operating voltage corresponding to the power output mentioned above should be 16.4 V.
4. The open circuit voltage of the PV modules under STC should be at least 21.0 Volts
5. The terminal box on the module should have a provision for opening for replacing the cable if required
6. A strip containing the following details should be laminated inside the module so as to be clearly visible from the front side.
  a) Name of the Manufacturer or distinctive Logo
  b) Model or type No
  c) Serial No
ELECTRONIC PROTECTIONS
1. Adequate protection is to be incorporated under no -load conditions e.g when the lamp is removed and the system is switched ON.
2. The system should have protection against battery overcharge and deep discharge conditions.
3. Fuses should be provided to protect against short circuit conditions.
4. A blocking diode should be provided as part of the electronics, to prevent reverse flow of current through the PV module(s), in case such a diode is not provided with the solar module (s)
5. Full protection against open circuit accidental short circuit and reverse polarity should e provided
MECHANICAL HARDWARE
1. A metallic frame structure (with corrosion resistance paint) to be fixed on the pole to hold the SPV module(s) The frame structure should have provision to adjust its angle of inclination to the horizontal between 0 and 45, so that the module(s) can be oriented at the specified tilt angle
2. The pole should be made of mild steel pipe with a height of 4 metres above the ground level, after grouting and final installation. The pole should have the provision to hold the we proof lamp housing It should be painted with a corrosion resistant paint.
3. A vented, acid proof and corrosion resistant painted metallic box for outdoor use should be provided for housing the battery.
OTHER FEATURES

I. The system should be provided with 2 LED indicators a green light to indicate charging in progress and a red LED to indicate deep discharge condition of the battery. The green LED should glow only when the battery is actually being charged

II. There will be a Name Plate on the system which will give
a) Name of the Manufacturer or Distinctive Logo
b) Serial Number

III. Components and parts used in the solar street lighting systems should conform to the latest BIS specifications, wherever such specifications are available and applicable.

IV. The PV module(s) will be warranted for a minimum period of 10 years from the date of supply and the street lighting system (including the battery ) will be warranted for a period of two years from the date of supply
The Warranty Card to be supplied with the system must contain the details of the system supplied. The manufacturers can also provided additional information about the system and conditions of warranty as necessary.

V. An Operation Instruction and Maintenance Manual, in English and the local language should be provided with the solar street lighting system
The following minimum details must be provided in the Manual

About Photovoltaics
About solar street lighting system - its components and expected performance
About PV module
About CFL
About battery.
Clear instructions about erection of pole and mounting of PV module and lamp housing assembly on the pole.
About electronics.
About charging and significance of indicators
DO's and DON'T's,
Clear instructions on regular maintenance and trouble shooting of the solar street lighting system.
Name and address of the contact person in case of non-functionality of the solar street lighting system

SOLAR STREET LIGHT

This system is designed for outdoor application in un-electrified remote rural areas. This system is an ideal application for campus and village street lighting. The system is provided with battery storage backup sufficient to operate the light for 10-11 hours daily. The system is provided with automatic ON/OFF time switch for dusk to down operation and overcharge / deep discharge prevention cut-off with LED indicators.

The solar street light system comprise of

74 Wp Solar PV Module
12 V, 75 Ah Tubular plate battery with battery box
Charge Controller cum inverter (20-35 kHz)
11 Watt CFL Lamp with fixtures
4 metre mildsteel lamp post above ground level with weather proof paint and mounting hardware.

The SPV modules are reported to have a service life of 15-20 years. Tubular Batteries provided with the solar street lighting system require lower maintenance; have longer life and give better performance as compared to pasted plate batteries used earlier.

The systems electronic provide for over-charge and over-discharge cut-off essential for preventing battery and luminaries damages.

Renewable Energy?

Most renewable energy comes either directly or indirectly from the sun. Sunlight, or solar energy, can be used directly for heating and lighting homes and other buildings, for generating electricity, and a variety of commercial and industrial uses.

In Modern world, energy holds the key to develop & energy consumption is linked with economic progress. Generally higher income or output of a nation is closely related with higher level of energy consumption. However, energy is one element of the infrastructure, required for production & the daily needs of the masses, which can not be imported on any scale for a country like India's population & size. So self-reliance &Higher degree of self-sufficiency is urgently called for.

The largest consumer of energy in our nation is the household sector. Accounting for 50%of total energy consumption in rural areas & most of this is delivered from non-commercial sources like firewood, animal plant & agricultural waste etc. Bulk of the new & Renewable sources of energy are sun wind power, biomass, waste utilization etc. The integrated for tacking the problems of energy & improving the quality of life in the rural areas.

Energy problem of the rural areas can be tackled by utilization of renewable sources of energy such as Solar, wind & Bio-energy. For evolving an appropriate strategy for energy

In the rural areas, It is essential to have assessment of existing availability of energy resources and also to make some projections for future availability.

ENERGY SCENARIO IN INDIA

India as per capita consumption of commercial energy at 208kg oil replacement units is only one eight of the world average. The energy intensity of growth on the other hand is

Extremely high while energy efficiency remains low with one unit input of energy. India

Produces only half of what is produced in developed countries. Further, for one- % growth

In GNP, the country requires 2.02% energy growth.

The country has achieved a 170kwh per capita per year energy consumption. But in reality 75-80% of this goes to 20% capital in our villages. And 60% of this is used for cooking alone. Rural electrification programs have neither, energy reached to any

Significant section of the rural population nor has it slowed the pace of deforestation

Coal, gas & oil are the major fuels to be consumed in the power plants but as a matter Of facts these fuels are exhaustive & therefore, anxiety over the supply position of fosses fuels has largely been faded. These fuels are considered to provide energy to a rapidly expanding world population not beyond the middle of the next century. Below table presents the position of energy resources in not beyond the middle of the next century.

Street light

Solar street lighting system can be used during night for street lighting. It is an independent stand alone lighting system and has automatic switch on and off during dusk to dawn operation. This arrangement can be made use of in the roads of town, villages, check post, vegetable market, regulating market, coffer estate, bus stands, forest watch tower, forest timber yard etc.

Features