AVS 30, FRIDGE GUARD, TV GUARD AND TV GUARD

#3
The AVS 30 serves the same purpose as a tv guard. As long as the incoming power is out or range (both voltage and current) it will stay on standby or off however you MUST have a fridge guard as it's operating principle is slightly different. A fridge requires a delay of 3-5 minutes in case of a power fluctuation to safeguard the compressor. SO YES, YOU CAN DO WITHOUT A TV GUARD IN THIS SET UP.
 
#5
Depends on the voltage you set the voltage switcher. Electronics and electricals are sensitive to voltage. current is a real time observation and not really a value of electrical power supply. So set the upper voltage values correctly in the switcher. our power supply is unstable so you will not get a very narrow range unless you want everything to be going off every now and then.
 
#10
okay another question the TV guards at sollatek it's 4,500 at naivas 3,500 then we have akina MK at 500 pale jumia are the jumia ones trustable?
hata hizo tv bracket za jumia ati 350 has anyone bought them.
 

Join Chatpanda, Fastest growing social media website in Kenya! Get verified easily, grow your following, and meet like-minded Kenyans

#12
I second this. Your TV needs a protector more than your fridge. AVS 30 is enough as long as its current limits are not exceeded. Essentially, whole-house protection is the key
I beg to differ, in Kenya a fridge guard is an essential part of protecting your fridge due to the unstable power supply from Kenya power. Replacing a compressor in a fridge is more expensive than buying a fridge guard.

@one-kigongi so far sollatek fridge guard is the best in the field though pia kuna zile umbuthe, lasima ukuwe mujanja
 

ilonMask

Village Elder
#13
than buying a fridge guard
The amount of voltage that can damage the motor component of a compressor cannot be prevented by a mere fridge guard. As indicated above, these "guards" have low margins of "protection" which make them useless in extreme cases that can ruin your items. If you're serious about over-voltage protection, a proper surge protector is critical (eg AVS30/100).
 
#14
The amount of voltage that can damage the motor component of a compressor cannot be prevented by a mere fridge guard. As indicated above, these "guards" have low margins of "protection" which make them useless in extreme cases that can ruin your items. If you're serious about over-voltage protection, a proper surge protector is critical (eg AVS30/100).
Let me school you a little on how a fridge compressor works. When you switch on your fridge there is refrigerant (gas) that circulates in the pipes to produce the cooling. The compressor acts as the heart to receive, compress and discharge the gas (same way as a water pump). At any given time there will be low and high pressure in the system. The fridge guard is preset in the factory with a 3-5 minutes delay before it connects power to the fridge. The sole purpose of the delay is to enable the gas pressures in the system to equalize before compressor starts again after a power outage.

If the pressure difference is big, the compressor motor will struggle to run and will draw alot of current (measured in amps) more that the motor winding rating which might lead to the windings melting (burning).

Back to your argument, what damages the compressor motor windings is the current and not voltage. Thats why you normally have a fuse to melt in case of over current.
 

ilonMask

Village Elder
#15
Let me school you a little on how a fridge compressor works. When you switch on your fridge there is refrigerant (gas) that circulates in the pipes to produce the cooling. The compressor acts as the heart to receive, compress and discharge the gas (same way as a water pump). At any given time there will be low and high pressure in the system. The fridge guard is preset in the factory with a 3-5 minutes delay before it connects power to the fridge. The sole purpose of the delay is to enable the gas pressures in the system to equalize before compressor starts again after a power outage.

If the pressure difference is big, the compressor motor will struggle to run and will draw alot of current (measured in amps) more that the motor winding rating which might lead to the windings melting (burning).

Back to your argument, what damages the compressor motor windings is the current and not voltage. Thats why you normally have a fuse to melt in case of over current.
Well, good schooling. Allow me to school you a bit too. Voltage is similar to pressure that allows current to "pass through" a specific conductor. High voltage, using ohms law (I=V/R), means that resistance is lowered, allowing current to "pour" into a conductor. Consequently, copper losses, known as I squared R, leads to the conductor element heating up and melting. In electric motors, the amount of voltage required to damage it is high, and cannot be prevented by typical surge protectors.

Back to your argument, compressors have evolved significantly in the recent past, they no longer need such time to "discharge" the refrigerant. Also, most manufacturers already have mechanisms in place to ensure pressure differences, with or without power, do not harm the system. What most people actually replace in damaged fridges is the control board, not the pump. The control board is an electronic device, which cannot be protected by common fridge "guards" that Kenyans purchase. So, to reiterate my point, the only way to protecting your fridge is by installing a surge protector for the whole house.
 
#16
Well, good schooling. Allow me to school you a bit too. Voltage is similar to pressure that allows current to "pass through" a specific conductor. High voltage, using ohms law (I=V/R), means that resistance is lowered, allowing current to "pour" into a conductor. Consequently, copper losses, known as I squared R, leads to the conductor element heating up and melting. In electric motors, the amount of voltage required to damage it is high, and cannot be prevented by typical surge protectors.

Back to your argument, compressors have evolved significantly in the recent past, they no longer need such time to "discharge" the refrigerant. Also, most manufacturers already have mechanisms in place to ensure pressure differences, with or without power, do not harm the system. What most people actually replace in damaged fridges is the control board, not the pump. The control board is an electronic device, which cannot be protected by common fridge "guards" that Kenyans purchase. So, to reiterate my point, the only way to protecting your fridge is by installing a surge protector for the whole house.
Respect Village Elder, that's some nice input there. Tuko pamoja kama butt cheeks - no homo
 

Join Chatpanda, Fastest growing social media website in Kenya! Get verified easily, grow your following, and meet like-minded Kenyans

#17
I choose to trust Kenya Power. I also choose to trust the circuit breaker kwa KPLC main board ile iko na fuse then MCB then meter. Inside the house i choose to trust the breakers on the power distribution board. I also choose to trust the power extension which indicates that it has surge protector as well as a fuse.

I believe you will be very unlucky to experience a power surge that ends up destroying your electronics. I know it happens but i believe it is very rare.
 
#19
This is a timely thread. I have had major power issues in my apartment twice, with a recent incidence last week, where suddenly my electronics and appliances refused to fully power up and more recently, some lights were dim and others went completely off. Even my gadgets were not charging properly. I only have a fridge guard, but the electrician advised that I should get one for the TV and washing machine as well.

Of course the electrician resolved my power issues, but I'm quite fearful that this problem is bound to reoccur because he (electrician) mentioned that there seems to be a problem with power supply to my apartment due to the frequent KPLC power outages and constant switches to the generator. I think I'm lucky that all my electronics and appliances are still working. I don't understand the in-depth of the whole electrical flow and power issues in my apartment, (since no other apartment has experienced this problem), but this thread reminds me that, I need to get to protect the entire apartment soon.
 

mentor

Village Elder
#20
Most electronics gets fried during a short power interruption, OFF-ON in the sec or millisecond range. TV guards gives you upto 180sec, before switching on again.
In some regions 220-240V operating range of most consumer electronics, comes in as 180 or 260v hence need for automatic voltage regulator. But your TV can still get barbacued by 240
 

Join Chatpanda, Fastest growing social media website in Kenya! Get verified easily, grow your following, and meet like-minded Kenyans

Top