Question Will a 1200VA voltage regulator be sufficient for my PC and peripherals ?

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lastwood79

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Apr 16, 2018
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hi everyone ,
im not electrician or expert on electrical so i want to make sure if im on safe side
i just bought APC 1200VA AVR (voltage regulator) but then i wondered whether the 1200VA is sufficient enough to handle (not overloading) all of my equipments?
I have tried to contact the APC support but it seems to be no reply from them

my equipment:
1. PC : - i5 4460 (processor)
- Palit Super Jetstream GTX 960
2GB (GPU )
-2x4GB DDR 3 RAM
-motherboard micro atx 1150
-1X 128GB SSD
-1X 1TB HDD WD BLUE
- PSU CoolerMaster MasterWatt
550 550W 80+ Bronze
-6X 120mm fans
- usb keyboard and mouse
- usb DAC AMP ifi zen DAC
according to outervision
load wattage : 344W
Recommend UPS rating :750VA
recommend PSU wattage : 394W

2. 2X Yamaha HS 5 Speaker specifications according to website for each speaker :
-output power 70W (LF :45W , HF : 25W)
-power consumtion 45W

3. Led Monitor Samsung 24Sr35 24inch (according to website 25watt)

thanks in advance
 

RealBeast

Titan
Moderator
hi everyone ,
im not electrician or expert on electrical so i want to make sure if im on safe side
i just bought APC 1200VA AVR (voltage regulator) but then i wondered whether the 1200VA is sufficient enough to handle (not overloading) all of my equipments?
I have tried to contact the APC support but it seems to be no reply from them

my equipment:
1. PC : - i5 4460 (processor)
- Palit Super Jetstream GTX 960
2GB (GPU )
-2x4GB DDR 3 RAM
-motherboard micro atx 1150
-1X 128GB SSD
-1X 1TB HDD WD BLUE
- PSU CoolerMaster MasterWatt
550 550W 80+ Bronze
-6X 120mm fans
- usb keyboard and mouse
- usb DAC AMP ifi zen DAC
according to outervision
load wattage : 344W
Recommend UPS rating :750VA
recommend PSU wattage : 394W

2. 2X Yamaha HS 5 Speaker specifications according to website for each speaker :
-output power 70W (LF :45W , HF : 25W)
-power consumtion 45W

3. Led Monitor Samsung 24Sr35 24inch (according to website 25watt)

thanks in advance
Yes, but I would recommend using the PowerChute software to set it on power down to save battery, i.e. at 5 minutes of power outage. I would not put the monitors or speakers on it though to have the maximum power available to run the computer to shutdown in case it has updates to do on shutdown or whatever, and they don't really need the UPS protection like the computer.
 
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1200VA should be enough considering the amount of real power consumed isn't half that. However, I would recommend buying something like a Kill-A-Watt to verify how much you need. Note that VA is not the same as watts . VA represents apparent power consumption.

Also I would leave a monitor plugged into the UPS in case you need to do things manually before you shut down the computer.
 
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Misgar

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Mar 2, 2023
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You describe your unit as an APC Voltage Regulator, which is not the same thing as a UPS, although most UPS include a Voltage Regulator. When the mains fails, a voltage regulator ceases to supply connected equipment immediately. People in countries with dodgy mains supplies often use Voltage Regulators to prevent low voltage "brown outs" or over-volt events from affecting sensitive equipment.

If your APC unit is indeed a UPS, install PowerChute Personal Edition v3.1 on your computer and connect a USB lead from the APC UPS to the PC.

Start PowerChute, locate the Monitor Status section and click Current Status.

On the system I'm using (AMD 5600X) PowerChute shows "Your battery backup is currently supplying 91 Watts of power. You can connect more equipment to your battery backup".

If I switch on another computer connected to the same APC UPS, the powerconsumption shown in PowerChute increases.

On a heavily loaded UPS, you may not get more than 5 minutes on battery backup after the mains fails. Disconnect non-essential equipment immediately and shut down the most power hungry equipment ASAP.
 

lastwood79

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Apr 16, 2018
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thanks guys for answers , sorry there was a misunderstanding in my question
the unit i just bought is just AVR unit (automatic voltage regulator) not UPS
https://www.apc.com/id/en/product/L...regulator-3-universal-outlets-230v-indonesia/
the AVR doesn't come with battery, i bought this because electricity in my house or my country is bit bad (unexpected dip and spike and voltage stay in 230v+ , not stable in 220v)

im wondering if 1200VA can sufficient for my monitor + speakers + PC
 
From your specs, I would say you are ok.
But, I think you might be better off with a 1200va UPS.
It will not only regulate the power, but it will let you ride through occasional drops in power or instances of low voltage.
A UPS might cost 2x what you bought
 
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Misgar

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As posted earlier, best bet is to buy a Kill-a-Watt or similar low cost meter and measure the power draw of all items combined. If you get close to the rating of the voltage regulator, consider disconnecting the speakers.
 

lastwood79

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Apr 16, 2018
26
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From your specs, I would say you are ok.
But, I think you might be better off with a 1200va UPS.
It will not only regulate the power, but it will let you ride through occasional drops in power or instances of low voltage.
A UPS might cost 2x what you bought
thanks , yes the UPS cost 2 times more from this AVR which im out of budget. if im not mistaken isnt AVR also provide same protection of low voltage ? the only difference is only without battery that i can't save my work during blackout?

As posted earlier, best bet is to buy a Kill-a-Watt or similar low cost meter and measure the power draw of all items combined. If you get close to the rating of the voltage regulator, consider disconnecting the speakers.
thanks , unfortunately right now im short of budget (broke 😔) probably doesn't want to purchase anything for a while
 

Misgar

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Yes, the whole point of an AVR is to "iron out" voltage droops or increases above "normal". I've just come back from a holiday where all the hotel room air conditioning units have a large AVR weighing 20kg on the floor, rated at 4kVA.

When the town mains supply drops from a nominal 220V down towards 100V, you can sometimes hear the motor in the AVR moving a slider round the Variac transformer inside, unless it's drowned out by the noise of the ACU.

I've measured mains voltages abroad as low as 55V AC and as high as 330V AC. In the latter case, all the light bulbs in my hotel bedroom exploded. These locations were not protected by an AVR.
 
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