Electronics & Appliances Best Posts in Thread: Stay online in brownouts

Just thought I would share my solution for staying online even in brownouts.

Especially good for those needing internet connection for work.

So I have internet access through PLDT fiber.

When brownouts I was loosing connection.

I bought a UPS (Uninterrupted Power Supply) on Lazada. Chose the biggest I could find (3000VA) and have all my computer related devices including the modem connected to it.

Now when the power goes out I still have internet, TV,. Xbox and the whole lot.

Price and info:

https://s.lazada.com.ph/s.ZQii4


This was definitely worth it.

Not reccomended to run large fans or air-conditioning, small fans ok.

You can use LED bulbs and have light in brownouts also.

Enjoy

 

There are several usual places that are usually overlooked.
1. Rejoice hardware
2. Uymatio building supplies
3. Omega
4. Polaris, they are not always out of stock
5. Ace Hardware, smaller sizes
6. Citi Hardware.
7. Du Ex Sam

Most common problems with gasoline generators are not following the proper shutdown procedure. When allowing it to run after shutting off the gasoline valve and letting it die will prevent varnish from building up in the residual gasoline which gums up the jets.

On electric start diesel generators the two main areas of trouble are battery and oil pressure. When you turn the key on a electric fuel pump starts and if for some reason leave it on when the diesel is not running you will have a discharged battery the next time you need it.

Batteries most of the time don't require you to relieve much of the compression to get the generator to spin up so you can re-engage the compression to get the motor to fire and pickup the load. If the load is mainly motor or compressors like ACs, freezers or refrigerators which require tremendous startup currents stagger which ones are allowed to start first.

After getting a few of the load to start listen to the generator. If it starts to chug chug it is in an overload and quickly turn off that AC. The smoke from the exhaust will be black in that overload condition and cause the oil in the crankcase to sludge up blocking passages to the oil pressure switch which will shut the diesel down unless it has been bypassed. In the overloaded condition the voltage drops, possibly damaging electronic devices being used.

Been there done that...many times.

shakey aka John

 

I have a 12v battery, an inverter connected to the battery. It does all those things plus fans. it last about 2 hours. If I wanted to last longer I would buy another battery and hook that up to the other battery making it 400 ah. If I wanted to I could add some solar panels to the inverter via a solar charge controller

 

I did the same few years ago, but went with a smaller APC device (620VA, 3000 php currently on Lazada). I use it only for the fibr modem and possibly to charge my phone, lasts long enough for the usual short unannounced brownout.

A nice side effect of such device is that is also smoothes out the occasional hickups in the network that otherwise cause devices to reboot or worse. If you have a "real PC" running off any UPS it will protect it from these and at least give you a chance to save your stuff and do a controlled shutdown.

Obviously a diesel generator powering the whole house is hard to beat but not always an option (rented apartment...)

 

I got my "Best & Strong"at Rejoice 8 years ago and it is still working fine.

 

Strange I bought two from there but it was some time ago.

 

Had a look at the UPS, they have a small battery 12Ah. a computer and monitor normally uses 500 watts, so a guess would be 20 mins just for the PC.