Let there be light! backup power system in a country house.
What could be worse than turning out the lights in the winter? Any of suburban residents sooner or later faced with a situation where the light bulbs go out, well pump stops pumping water, and heating the battery cool down before our eyes. What to do in this case?
Most people would say: start the generator and connect it to the instruments and equipment in the house. Not so simple.
But what if in the house there were only women and the elderly, or you do not want to get up in the middle of the night - to go to the garage or utility room and start the generator?
Desperate situations do not happen! You will come to the aid of backup power system at home or in abbreviated form - PSA.
For right choice of a power system, you must understand how it differs from the autonomous power supply system (SAP).
Andrei-AA (Member FORUMHOUSE):
PSA is used in the case whereconnected hometo the main power grid. When disconnecting the main power backup system "picks up" major power consumers, such as a downhole pump, boiler, refrigerator, television and computer. SAP - this is the main power supply system for home, used in the absence of the main power supply.
Move to the backup system. according to Andrei-AAThere are 4 main types of PSA.
- If the network is disconnected for a short while, but in total per month for more than 10 hours, the best is the system consisting of inverter, battery charger and battery pack, rechargeable from the mains.
Inverter - a DC-DC converter from the battery to AC single phase 220V, which operates the equipment in the house.
- If the network is turned off at least 10 hours per month, the system is more advantageous from the power generator to the internal combustion engine (ICE) equipped with an automatic starting system.
- If the network is disconnected and often long, or when the voltage is too low, then the optimum is a system consisting of a generator, the battery pack, the charger and the inverter.
Built on a similar principle and an autonomous power supply system, but they are subject to the higher power requirements.
- If the required power can be limited 1-1.5 kW, then as a backup power supply system can be used with a car attached to it by the inverter.
Dwell the third embodiment. A user with the nickname galexy456 It offers a step by step plan to create a budget PSA system.
1. The electrical shield infest two cables from the back of the room. The first cable is required to apply electricity to the inverter. The second - to transmit electricity from the inverter into the house.
galexy456 (Member FORUMHOUSE):
I'm on the street mounted a small plate, which implements the scheme of automatic input of a reserve, or abbreviated ATS
2. In the utility room set inverter, batteries and commuting all devices.
Andrei-AA:
I recommend choosing an inverter with sinusoidal output voltage.
Inverters come in two main types - a sine output (the best option), and the so-called "modified sine wave". If the inverter produces "modified sine wave", some devices when connected to it can be damaged due to the high level of frequency harmonics in the power - 150Hz, 250Hz, 350Hz, etc.
In the event of a power failure, such a system works as follows. ATS independently and quickly - so that the devices do not have time to shut down, switches the power supply from the primary to backup.
Now all connected energy consumers continue to operate from the battery and the inverter. If electricity is not more than 5-6 hours, without waiting for a complete discharge of batteries (of their service life is greatly reduced), you must manually start the generator.
There are systems with automatic start generator set in a heated back room and is equipped with a forced exhaust system. The main drawback of the PSA - it is their high price.
galexy456:
After starting the generator inverter transforms the load to the instrument and simultaneously it begins to charge the batteries. Thus, the extended time of operation of the system and saves the service life of the generator, since it does not operate in continuous mode.
It must be remembered that the generator should be run after the exhaustion of the battery capacity by approximately 30-60%.
Any, even the most advanced and expensive backup system primarily trains save energy in the home, because this time directly from the PSA work depends.
Forum users are advised to:
- replace all the light bulbs in the house to energy saving;
- Lay a second, backup power supply line, to which, in the event of a power outage, you can connect the most necessary equipment in the home;
- how to warm the house, in order to reduce heating costs;
- when the backup power supply system does not use large appliances: iron, electric kettle, vacuum cleaner.
Andrei-AA:
Of course, the inclusion of a hair dryer, kettle and iron for 3-7 minutes much not discharge the battery, but the ironing, or work with a powerful power tool is best avoided.
To construct the PSA load in the house can be divided into three parts:
- Heating.
- Water-heating devices.
- Devices that require mandatory backup, namely:
- lighting;
- Heating circulating pump;
- the downhole pump and the pump station;
- a computer;
- fridge, TV, Internet.
Also, as a backup power supply system can be used and the vehicle. To do this:
- Purchase inverter with sinusoidal output at 12-220 in power up to 2 kW with overload current or power.
- Warm up vehicle engine.
- Switch off the engine.
- Connect the inverter directly to the battery terminals (not disconnecting it from the vehicle).
- Start the engine.
- Connect the load to the inverter.
- After disconnecting the load, leave the auto zavedonnym engine to recharge the battery.
Pragmatist(Member FORUMHOUSE):
The total load of the consumers in this case should not exceed 2 kW!
I always use the grid of his car as a source of electricity in the country. Maximum time in this mode of operation was 10 hours and worked with all the major power consumers in the home.
How to make your own backup power system? Learn about users forumhouse.ru can here and here. All information on the calculation of the autonomous power supply system is assembled in this blog. Automatic startup of the generator from "A to Z" is described in this topic.
And this THE VIDEO It describes how the inverter and the battery pack can increase the electric power in the house.
Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.
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