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Power Inverter, Choosing the right Capacity in Nigeria – View Prices

Power Inverter, Choosing the right Capacity in Nigeria – View Prices below

Nigeria Inverter  and Solar Prices at the bottom

Some basics

There many types, sizes, brands, and models of inverters. Choosing which one is best from such a long list can be a chore. There is no “best” inverter for all purposes – what might be great for an ambulance would not be suited for an RV.

Power output is usually the main factor, but there are many others.
But there are many factors that go into selecting the best inverter (and options) for your application, especially when you get into the higher power ranges (800 watts or more).
Lets get through some basics

Watts – Are basically just a measure of how much power a device uses when turned on, or can supply. If a something uses 100 watts, that is simply the voltage times the amps. If it draws 10 amps at 12 volts, or 1 amp at 120 volts, it is still 120 watts.
Watt-hour (or kilowatt hour, kWh) is simply how many watts times how many hours that is used for. This is what most people mean when they say “watts per day”. If a light uses 100 watts, and it is on for 9 hours, that is 900 watt-hours. If a microwave uses 1500 watts, and runs for 10 minutes, that is 1/6th of an hour x 1500, or 250 WH. When you buy power from your friendly utility (look at your last bill), they sell it to you at so much per kWh. A kWh is a “kilowatt hour”, or 1000 watts for one hour (or 1 watt for 1000 hours).
Amp- is a measure of electrical current at the moment. (Amps do not come in “amps per hour” or “amps per day” either). Amps are important because it determines what wire size you need, especially on the DC (low voltage) side of an inverter. All wire has resistance, and amps flowing through a wire makes heat. If your wire is too small for the amps, you get hot wires. You can also get voltage drops in the wire if it is too small. This is not usually a good thing. An amp is defined as 1 Coulomb per second.
Amp-hours (usually abbreviated as AH) are what most people mean when they say “amps per hour” etc. Amps x time = AH. AH are very important, as it is the main measure of battery capacity. Since most inverters run from batteries, the AH capacity determines how long you can run.

Peak Versus Typical

An inverter needs to supply two needs – Peak, or surge power, and the typical or usual power.
o Surge is the maximum power that the inverter can supply, usually for only a short time – a few seconds up to 15 minutes or so. Some appliances, particularly those with electric motors, need a much higher startup surge than they do when running. Pumps are the most common example – another common one is refrigerators (compressors).

o Typical is what the inverter has to supply on a steady basis. This is the continuous rating. This is usually much lower than the surge. For example, this would be what a refrigerator pulls after the first few seconds it takes for the motor to start up, or what it takes to run the microwave – or what all loads combined will total up to.
• Average power would usually be much less than typical or surge, and is not usually a factor in choosing an inverter. If you run a pump for 20 minutes and a small TV for 20 minutes during a one hour period, the average might be only 300 watts, even though the pump requires 2000. Average power is only useful in estimating battery capacity needed. Inverters must be sized for the maximum peak load, and for the typical continuous load.

Power Ratings of inverters

Inverters come in size ratings all the way from 50 watts up to 50,000 watts, although units larger than 11,000 watts are very seldom used in household or other PV systems. The first thing you have to know about your inverter is what will be the maximum surge, and for how long

Surge: All inverters have a continuous rating and a surge rating. The surge rating is usually specified at so many watts for so many seconds. This means that the inverter will handle an overload of that many watts for a short period of time. This surge capacity will vary considerably between inverters, and different types of inverters, and even within the same brand. It may range from as little as 20% to as much s 300%. Generally, a 3 to 15 second surge rating is enough to cover 99% of all appliances – the motor in a pump may actually surge for only 1/2 second or so.

o General Rules: The inverters with the lowest surge ratings are the high speed electronic switching type (the most common). These are typically from 25% to 50% maximum overload. Surge ratings on these can range up to 300% for short periods. While high frequency switching allows a much smaller and lighter unit, due to the much smaller transformers used it also reduces the surge or peak capacity.

Pros and Cons: Although the high frequency switching type don’t have the surge capacity of the transformer based, they do have some definite advantages. They are much lighter, usually quite a bit smaller, and (especially in the lower power ranges) they are much cheaper. However, if you are going to run something like a submersible well pump, you will need either very high surge capacity or you will need to oversize the inverter above it’s typical usage, so that even at maximum surge the inverter will not exceed it’s surge rating.

There are 3 major types of inverters

Sine Wave
A sine wave is what you get from your local utility company and (usually) from a generator. This is because it is generated by rotating AC machinery and sine waves are a natural product of rotating AC machinery. The major advantage of a sine wave inverter is that all of the equipment which is sold on the market is designed for a sine wave. This guarantees that the equipment will work to its full specifications. Some appliances, such as motors and microwave ovens will only produce full output with sine wave power. A few appliances, such as bread makers, light dimmers, and some battery chargers require a sine wave to work at all. Sine wave inverters are always more expensive – from 2 to 3 times as much.

o Modified Sine Wave
A modified sine wave inverter will work fine with most equipment, although the efficiency or power will be reduced with some. Motors, such as refrigerator motor, pumps, fans etc will use more power from the inverter due to lower efficiency. Most motors will use about 20% more power. This is because a fair percentage of a modified sine wave is higher frequencies – that is, not 60 Hz – so the motors cannot use it. Some fluorescent lights will not operate quite as bright, and some may buzz or make annoying humming noises. Appliances with electronic timers and/or digital clocks will often not operate correctly. Many appliances get their timing from the line power – basically, they take the 60 Hz (cycles per second) and divide it down to 1 per second or whatever is needed. Because the modified sine wave is noisier and rougher than a pure sine wave, clocks and timers may run faster or not work at all. They also have some parts of the wave that are not 60 Hz, which can make clocks run fast. Items such as bread makers and light dimmers may not work at all – in many cases appliances that use electronic temperature controls will not control

The most common is on such things as variable speed drills will only have two speeds – on and off.

• Square Wave
Very few but the cheapest inverters are square wave. A square wave inverter will run simple things like tools with universal motors without a problem, but not much else. Square wave inverters are seldom seen any more.

A power inverter converts 12 volt DC power to standard household 110-120 volt AC power, which allows you to run AC electrical equipment off your car or marine battery for mobile applications, emergencies or simple convenience.

Choosing the Right Inverter Size

One of the most important factor that you must know before buying an inverter is your “Power requirement”. In simple words- what all electrical appliances (like fan, tube lights, television, CFL etc.) you want to run at the time of power failure. The power requirement is addition of the power consumed by various electrical equipments.

Suppose you want 3 Fans, 3 Tube lights, 1 CFL & 1 television to operate at the time of power failure. Below is the power consumed by these items:
1 Fan – 70 Watts
1 tube light – 60 watts
1 CFL – 25 watts
1 Television – 120 watts
Therefore your total power requirement is ( 3*70 +3*60 + 25 + 120) = 535 watts
Find the VA rating of the inverter you need
It stands for the Volt ampere rating. It is the voltage and current supplied by the inverter to the equipments. If an inverter operates with 100% efficiency, then the power requirement of the electrical items and power supplied by inverter is same. But we all know that 100% or ideal conditions don’t exist in real. Most inverters have the efficiency range from 60 % to 80%. This efficiency is also called power factor of an inverter and is simply the ratio of power required by the appliances to power supplied by an inverter. Power factor of most inverters ranges from 0.6 to 0.8.
Hence Power supplied (or VA rating of inverter) = Power requirement ( power consumed by equipments in watts) / Power factor( efficiency).

Second example
Many home appliances and power tools have their wattage rating indicated on the product itself. Wattage rating can also be calculated by using this formula:
Volts (120) x Amps = Watts
To determine if several appliances can be operated at the same time, simply add up their wattage ratings to see if the total falls within the specifications of the power inverter.

Appliance Est.- Watts
Cell Phone  – 24
CD Player-  40
VCR –  50
Satellite Dish  – 75
Printer –  75
Laptop –  60-90
iPod –  120
PS2/XBox –  125
25″ TV –  175
CPAP  – 200
Jig Saw  – 350
Computer & Monitor  – 400
Blender – 400
Refrigerator – 500
1/2″ Drill  – 700
Vacuum Cleaner – 750
Coffee Maker – 800
Iron –  1000
Sub Pump  – 1000
Space Heater – 1000
40″ Fan  – 1100
Toaster –  1200
Circular Saw –  1250
Microwave  – 1250

Battery Basics

Battery is the backbone of an inverter system. The performance and life of an inverter largely depend upon the battery quality. The next big question is “how much back up will an inverter provide?” or for “how many hours it can run all of your equipments?”. This is what is called the battery capacity. It is the battery capacity that decides the back up hours. It is expressed in Ah (Ampere Hours).

In the market batteries with capacity of 100 Ah,150 Ah, 180 Ah etc. are readily available. So how to decide which one do you need? To find this out lets do a reverse calculation. Consider that you need a battery that provides back up for 3 hours.
Battery capacity = Power requirement (in watts) * Back up hours ( in hrs) / Battery Voltage (in volts)
Battery Capacity = (535 * 3) / 12 = 133 Ah
** Value of Battery voltage is taken 12V
Therefore a battery with a capacity of 130 Ah will work for you.
So if you want to run 3 fans, 3 tube lights , 1 CFL and 1 TV for 3 hours during power failure you would need 800VA inverter and 130 Ah battery.
By understanding this simple calculation you not only save yourself from the misleading information shared by inverter dealers but also help yourself in taking correct decision.

 

– Batteries should be in good condition. Old or weak batteries should be replaced before connecting them to an inverter.
– Automotive batteries are not suited to repeated long discharge and recharge cycles. They will have to be replaced more often than a deep cycle battery.
-Deep cycle batteries are a better choice as a power source for an inverter. They are designed to be repeatedly drained and recharged. It is also a good idea to have more than one battery supplying power to an inverter.
–  The amp hour rating of a battery is the most important measure when choosing a battery for power inverter use. T his indicates how many amps a battery can deliver for a specified period (usually 20 hours), showing how long it will run before needing to be connected to a battery charger.
-To prolong battery life, you should not use more than 50% of the battery’s rated capacity before recharging.
– Reserve capacity indicates how many minutes a battery can deliver a certain amount of current (25 amps for most batteries) at 60-75° F. Batteries will discharge much quicker at lower temperatures.
Safety Tips

– Always use a power inverter that is rated high enough for the device(s) you are running and avoid adapters that would allow more outlets than the unit is designed to accommodate.
-When using your power inverter continuously inside a vehicle that is not running, the engine should be started at least once an hour for 10-15 minutes to keep the battery from discharging. Do not start a vehicle in a closed garage, as the carbon monoxide in the exhaust is fatal.
-Power inverters work best with a battery that is in good condition and fully charged. A weak battery will be drained easily if demands are too high. This could leave you stranded so be sure to check the battery’s condition before using a power inverter in a stationary vehicle.
-If the power inverter is being used while the vehicle is running as in the case of a road trip, there should be no problem with the extra draw, assuming the battery and alternator are in good condition.
– Make sure your vehicle’s wiring harness can handle the current before plugging in an inverter to your cigarette lighter. You may need to hardwire the inverter directly to the battery to safely use it.
• Make sure the inverter is properly ventilated. Even a small inverter generates heat. Check to see if there is an internal fan with any inverter over 100 Watts. Place the inverter in a well-ventilated area when in use.
• Check the owner’s manual for the proper wire size for battery cables when connecting the inverter to the battery. Most manufacturers recommend 4 to 10 feet of cable length, depending on the inverter. Avoid aluminum wire because it has higher resistance to current flow than copper wire.
• Working with car batteries can be dangerous and can result in serious injury, and improper use of a power inverter can lead to electrocution or battery failure, so for your own safety be sure to read and follow any and all safety precautions that are listed in your power inverter owner’s manual.

Running Watts vs. Surge Watts

device  –    running watts starting      –  (surge) watts
Electrical Water Heater (40 gal.)  – 4000 –  0
Hot Plate   — 2500   — 0
Electric Stove – each element 1500-2500    –0
Window Air Conditioner   – 12000 BTU 1200  —–1800
Microwave – varies– 625    —800
Well Water Pump –1000  —1000
Sump Pump —-800    — 1200
Refrigerator Freezer —-800  —1200
Deep Freezer —500  —500
Furnace Blower –800  —1300
Computer— 800—- 0
Television —500 —– 0
Stereo — 400 — 0
DVD Player —100 —- 0
Box Fan  — 300   —- 600
Clock Radio —300  —0
Light Bulb  —75  —-0
Radial Arm Saw—- 2000  —2000
Circular Saw —1500 — 1500
Miter Saw —  1200 —  1200
Reciprocating Saw —   960 —  1040
Electric Drill —   600 —  900
Air Compressor (1 HP)–  1500  — 3000
Garage Door Opener  — 480  — 600
Security System —  180 —  0

 

Contact us if  you interested in the inverters below

 

AC inverter sale nigeria

AC inverter sale nigeria

inverter power nigeria

inverter power nigeria

 

nigeria power inverter

nigeria power inverter

 

some inverters below

 

Here are key product features of the 7.5kva msvalue inverter with IGBT Technology:

DSP based PWM technology using IGBT.
Fuzzy Logic Charging algorithm suitable for all type of batteries.
Constant voltage and frequency.
User friendly display and operation.
Auto self test.
Smart short circuit protection.
Runs very heavy loads.
In built TDR point for compressor based applications.
It uses Digital Signal processing (DSP)
Inbuilt Automatic voltage regulator
Inbuilt Anti surge
Digital charge technology for faster charging and longer battery life
Intelligent Thermal Management for longer life and higher reliability
High frequency based design for instantaneous sine wave control
Regulated battery charging from 150V to 280V
Audio alarm on: battery low pre-alarm, overload & short circuit trip
additional module with the inverter

Module 1: remote access to the inverter using a mobile phone

Module 2: remote access to the inverter using a remote control

Price list:

5kva : 3800000

Battery (8): 85000 * 8 = 680000

Total: 1,060,000.

Here are key product features of the 7.5kva/96volts msvalue inverter with MOSFET Technology:

DSP based PWM technology using MOSFET.
Fuzzy Logic Charging algorithm suitable for all type of batteries.
Constant voltage and frequency.
User friendly display and operation.
Auto self test.
Smart short circuit protection.
It uses Digital Signal processing (DSP)
Inbuilt Automatic voltage regulator
Inbuilt Anti surge
Digital charge technology for faster charging and longer battery life
Intelligent Thermal Management for longer life and higher reliability
High frequency based design for instantaneous sine wave control
Regulated battery charging from 150V to 280V
Audio alarm on: battery low pre-alarm, overload & short circuit trip

 

NIGERIA INVERTER and SOLAR  PRICES

AVG LOAD CAPACITY

2 AC (2HP)
1 AC (1HP)
5 LAPTOPS
4 FANS
4 TV SET
2 PRINTERS
20 BULBS

PRICE PER BATERY (200AMPHOUR)
N 110,000.00

NUM OF BATERIES
8
TOTAL BATERY PRICE
N 880,000.00

INVERTER PRICE
N 340,000.00

TOTAL
N 1,220,000.00


AVG LOAD CAPACITY

2 AC (1HP)
1 FREEZER
1 PRINTER
3 FANS
4 LAPTOPS
40 LIGHT BULBS
3 TV SETS
1 PUMPING MACHINE (1HP)

PRICE PER BATERY (200AMPHOUR)
N 110,000.00

NUM OF BATERIES
6
TOTAL BATERY PRICE
N 660,000.00

INVERTER PRICE
N 340,000.00

TOTAL
N 1,000,000.00


AVG LOAD CAPACITY

2 AC
1 Fridge
1 PRINTER
4 LAPTOPS
40 LIGHT BULBS
3 TV SETS
1 PUMPING MACHINE(1HP)

PRICE PER BATERY (200AMPHOUR)
N 110,000.00

NUM OF BATERIES
6
TOTAL BATERY PRICE
N 660,000.00

INVERTER PRICE
N 280,000.00

TOTAL
N 940,000.00


Nigeria Solar Prices

NUMBER/S OF PANEL
1

PRICE OF SOLAR PANEL/S
N 40,000.00
TOTAL PANEL PRICE
40000

SOLAR CONTROLLER PRICE
N 10,000.00

INSTALLATION

N 10,000.00

TOTAL
N 60,000.00


NUMBER/S OF PANEL
2

PRICE OF SOLAR PANEL/S
N 40,000.00
TOTAL PANEL PRICE
N80,000

SOLAR CONTROLLER PRICE
N 15,000.00

INSTALLATION

N 10,000.00

TOTAL
N 105,000.00

 

For full list share your email

Email: info@greenaira.com

Skype: nigeriagreenaira
Speak to us on Live Chat on website

 

Supplier
Please ring manaufacturer
MS Value
08085512654

 

 

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Posted by: | October 1, 2016

Posted on: 2016 October 1
nigeria-electric-power-holding-lagos

Nigeria Electric Power from 4000 to 100000 mega watts

Nigeria Electric Power from 4000 to 100000 mega watts

Presently, Nigeria electric Capacity stands at 4,000 mega watts for  a population of about 150 Million.

Contrast it to South Africa, generates 40,000 mega watts with population of just 50 million and Brazil has 100,000 mega watts with a population of 192 million

Nigeria lags significantly behind in access, quality and availability of public electricity supply. This threatens the actualisation of the socio-economic goals of alleviating poverty, jobs and wealth creation.

Nigeria needs to be generating  100,000 mega watts for Nigeria population to enjoy a stable electricity.

 

NIGERIA POWER STATIONS AND CAPACITY (some stations not operational or partially operational)

AES Barge (IPP) –  capacity 270MW

Aba Power Station – capacity 140MW

Afam IV-V Power Station – capacity – 726MW

Afam VI Power Station (IPP) –  capacity 624MW

Alaoji Power Station – capacity 1074MW

Calabar Power Station (NIPP) -capacity 561MW

Egbema Power Station (NIPP) -capacity 338MW

Egbin Thermal Power Station – capacity 1320 MW

Geregu I Power Station- capacity 414MW

Geregu II Power Station (NIPP) – capacity 434 MW

Ibom Power Station (IPP) – capacity 190 MW

Ihovbor Power Station (NIPP) – capacity 450MW

Okpai Power Station (IPP) – capacity 480 MW

Olorunsogo Power Station  – capacity 336MW

Olorunsogo II Power Station (NIPP) – capacity 675MW

Omoku Power Station (IPP) – capacity 150MW

Omoku II Power Station (NIPP) – capacity 225MW

Omotosho I Power Station (FGN-Privatized) – capacity 336MW

Omotosho II Power Station (NIPP) – capacity 450MW

Sapele Power Station-Privatized – capacity 1020 MW

Sapele Power Station (NIPP) – capacity 450 MW

Transcorp Ughelli Power Station (privatised) known also as Delta power station. – capacity 900MW

Kainji Power – capacity  800 MW

Jebba Power Station   – capacity   540 MW
Shiroro Power Station – capacity  600 MW

Zamfara Power Station – capacity  100MW

 

SOLUTION

The Nigeria govt needs to privatise the different sector of electricity generation and distribution. This should be in the hands of technocrats with expertise in the energy sector not politicians.

Though  privatisaton  of some part of the energy sector  2013 is still yet to yield increase  in the power sector.

Electric generation

Transmission

Distribution

Maintenance/Improvement

Protection from Sabotage

 

ELECTRIC POWER GENERATION

The govt have to build more power plant.  They have to build  New dams, new turbines, new wind mills, new coals etc

 

TRANSMISSION and DISTRIBUTION

Without the Transmission and distribution lines upgrade, all mega watts generated will be wasted and redundant. At the moment the infrastructure is dilapidated.

Transmission is currently a major challenge. The Transmission Company of Nigeria (TCN) remains a government entity, despite it being managed by Canadian company, Manitoba Hydro International.

TCN continues to operate obsolete transmission equipment and  held back by bureaucratic processes.

 

METERING CUSTOMERS

All customers should be meter.  With electricity passing through  houses or companies, it can be set up as “pay-per watts”…recharge card system. It is very important people pay their electric bills  for the govt  to generate enough funds to maintain and improve the infrastructure.

MAINTENANCE

Presently most of the power plants in Nigeria have broken down or partially operational due to lack of  maintenance.

This is very critical to maintain a steady electric to homes and business. Investing billions in new power plants is important, but maintaining them   is also very critical

 

PROTECTION FROM SABOTAGE

Protecting the energy infrastructure  from vandalism is critical.

 

COST  OF FUNDING THE ELECTRIC INFRASTRUCTURE.  

Billions  have been  squandered by several government, that is why despite been the Giant economy in Africa.

Nigeria generate less power compared  to Ghana, South Africa, Egypt etc.

It requires Billions of naira  to build power plants, upgrade transmission/distribution lines etc

Professor Igwe Onuoha of Niger Delta Power Holding Company has said it will take the nation trillion of naira.  Pointing out one million dollars will give you one megawatt,  meaning 100 megawatts will cost 100 million dollars.

 

 

Different types of electric generating  sources

 

Fossil-fuel based generation: Fossil-fuel based power generation is the single largest source of electricity generation in Africa. However, fossil fuels are the most expensive means for generating electricity, and this could be exacerbated by high fuel prices. In a number of countries, emergency energy solutions, which constitute a large part of installed capacity, also rely mostly on fossil-fuel energy.

Exploiting renewable energy sources: Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tides and geothermal heat—which are renewable (naturally replenished). Renewable energy technologies range from solar power, wind power, hydroelectricity/micro hydro, biomass and biofuels for transportation

 

Thermal power station

Coal, oil, gas and nuclear fuels can be used to heat water and convert it into steam at high temperatures and pressures. This is done in boilers or reactors. The very hot steam, at temperatures of between 500 C and 535 C, is released and turns a large turbine, connected to the rotating magnet and electricity is generated. In this way the energy in the fuel has been converted into electricity. Apart from thermal power station, there are other method by which electricity can be generated. Some are listed below

Wind power

The force of wind, used for centuries for pumping water and grinding corn, is the most promising  renewable energy source for making electricity and uses wind turbine. A wind turbine is a device that converts the wind’s kinetic energy into electrical power. Wind turbines are manufactured in a wide range of vertical and horizontal axis types.
Hydro-power generating plant

In mountainous countries, hydro electricity is an important source. These hydro-generating plants are also referred to as peaking power stations. These are the conventional hydro and the pumped storage systems. In the conventional system, water is stored behind a dam wall. The water can be released to drive huge turbines, which are connected to generators for power generation. The power station is normally situated close to the dam wall.

The other system utilizes pumped storage plant. This is the only practical way at present of storing “electricity” on a large scale. The idea is simply to use surplus electricity -for example, at night or week-ends when we are using less electricity (off-peak periods) – to pump water to a mountain top reservoir. This water can also be used as a supplement for other water schemes.

 In an event of a shortage of supply of electricity from other power generating stations, the top reservoir can be emptied very quickly back down through the turbine to regenerate electricity. In other words, the motor, which was driving a pump, becomes a generator driven by a turbine.

Power generation from these plants is limited as they rely on the water level of the dams or rivers which in turn is affected by the rainfall in its catchment area.

 Geothermal power

Geothermal power stations are similar to other steam turbine thermal power stations – heat from a fuel source (in geothermal’s case, the earth’s core) is used to heat water or another working fluid. The working fluid is then used to turn a turbine of a generator, thereby producing electricity.

 Solar power

Solar energy is captured, concentrated and stored by green plants to create fuels, but there are possibilities for harnessing it directly to make electricity.

The success of solar cells, which convert sunlight directly into electricity, has encouraged the idea of solar energy as a clean and free source of electricity. Solar cells provide the electricity needs for most satellites in orbit around the Earth.

On the Earth’s surface, our power requirements are more substantial and the atmosphere reduces the intensity of the sun. Very large areas of solar panels are required to produce useful amounts of electricity. The investment cost, although falling, is still very high. But solar cells are finding many applications in sunny countries in powering warning beacons, microwave Repeaters, water pumping and weather stations etc. A limited domestic use is also possible. Eskom and other energy providers work together in supplying an energy source to its customers, i.e. gas for cooking and electricity through solar systems for lights, radio and TV.

Tidal power

Tidal power, also called tidal energy, is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity. Although not yet widely used, tidal power has potential for future electricity generation. Tides are more predictable than wind energy and solar power. Tide is created by the gravitational effect of the sun and the moon on the earth causing cyclical movement of the seas.

Wave power

Wavepower is developing commercially viable technology that uses ocean waves as a source of energy to generate electricity.

Wave power is the transport of energy by wind waves, and the capture of that energy to do useful work – for example, electricity generation, water desalination, or the pumping of water (into reservoirs). A machine able to exploit wave power is generally known as a wave energy converter

Generators

A power station generator is a powerful electromagnet a coil energised by direct current to produce a magnetic field. This is mounted on the central rotating shaft, and is called the rotor. Around the rotor is a series of coils called the stator in which the electrical voltage is generated by the rotating magnetic field. Both rotor and stator may weigh several hundred tons.

 The rotor, connected to a turbine, turns at 3000 revolutions per minute – 50 cycles per second -to produce alternating current with a frequency of 50 hertz (cycles per second). Modern generators (in thermal power plants) typically produce 500- 600 megawatts of power – enough to light 5 -6 million lOO-watt bulbs. Other power generating plants as mentioned, can produce between I KW -250 MW of electrical energy, e.g. wind, tidal, wave etc.

 How electricity gets to your home When you next switch on the electric light or the television, stop to think for a moment of all the work which has been done to generate (make) electricity and to get it to your home.

 Power stations are linked by transmission lines and towers called pylons. Transmission is a word from the verb “to transmit” which means to send from one place to another. Transmission lines send the electricity through thick aluminium and copper wires. The network of transmission lines is called the National Grid.

 In order for the electricity to be transmitted safely and efficiently, it must be at a high voltage (pressure) and a low current. This is because if the current is too high, the cable would heat up too much and even melt and if the voltage were too low, hardly any energy would be carried. Remember that we need the pressure volts to enable us to transmit electricity over vast distances. The generators in the power stations produce electricity at 20000 volts. This voltage is raised or transformed before it is sent out at 132000, 275000, 400000 or even 765000 volts onto the transmission grid. These very high voltages are necessary to push the required flow of electricity through the wires and keep costs down.

 The electricity is transformed down to 11 000 volts for local distribution and then further reduced according to the need – for example, 240 (220) volts for domestic use. The electricity entering your home at 240 volts has had an eventful journey. From the initial high voltage transmission grid to a lower voltage distribution network. Travelling over ground and (probably) underground for great many kilometers, it has been transformed many times on the way.

 You’ve probably seen some of the equipment, which performs these operations in your local area. They are known as substations, which can be found in many sizes – small transformers mounted on wooden poles, larger transformers sitting behind high fences and huge arrays of strangely shaped devices on sites occupying several hectares.

 Transformers

A transformer is basically a very simple device. The alternating current is led through primary coil of wire, which produces an alternating magnetic field in the ring-shaped core of soft iron. This in turn creates a voltage in a secondary coil, from which the output current can be drawn. If the secondary coil has more turns than the primary, the output voltage is higher than the input voltage. This is a step-up transformer.   A step-down transformer has more turns in the primary coil than in the secondary coil to reduce the voltage.

 

Bio Waiste

Many African countries are doing agriculture, if one would ask ‘What do we with the Agricultural waste?” Bio-energy has a huge potential in Africa, proper planning needs to be taken for this to happen.

 

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Posted by: | September 21, 2016

Posted on: 2016 September 21
nigeria transformer sale lagos

50 Kva 3 Phase Transformer for sale...

  • Business name: ED Scob Suites
  • Category: Home Electronic/Appliance
  • Location: ,nigeria
  • Posted Date: April 26, 2017

50 Kva 3 Phase Transformer for sale in Lagos Nigeria   Item  is in...

3kva-santakups-16207

Nigeria Power Inverter Sale

  • Business name: Aderemi
  • Category: Home Electronic/Appliance
  • Location: Ibadan ,Oyo
  • Posted Date: December 14, 2016

Nigeria Power Inverter Sale 3KVA Santak UPS Name: Uninterruptible Pow...

solar-street-light--15992

Nigeria Solar street light Sale Ins...

  • Business name: Marychris Royal Concept Ltd
  • Category: Home Electronic/Appliance
  • Location: Lagos ,All Nigeria
  • Posted Date: December 7, 2016

We sale and install quality solar street light in all part of Nigeria.we al...

5kva-inverter--16004

Nigeria 5kva inverter Sale

  • Business name: Marychris Royal Concept Ltd
  • Category: Home Electronic/Appliance
  • Location: Ojo ,Lagos
  • Posted Date: November 30, 2016

Nigeria 5kva inverter Sale We sale and install quality inverter with one...

power-inverter-sale-uyo-akwa-ibom-nigeria

POWER inverter for a duplex 1 year ...

  • Business name: GLOBAL ANCREST LTD
  • Category: Home Electronic/Appliance
  • Location: Akwa-Ibom ,Akwa lbom
  • Posted Date: June 24, 2016

Power your home and Business Today. 10kva premium inverter, deployed for...

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