Do not disconnect UPS voltage installation Voltage drop "Lightning protector"? Page 4 - Suppliers and Enclosures - HWzone Forums
adplus-dvertising
Skip to content
  • Create an account
  • About Us

    Hello Guest!

     
    Please note - in order to participate in our community, comment and open new discussions, you must join as a registered member.

    Our members enjoy many advantages, including the ability to participate in discussions, enjoy raffles and promotions for members of the site, and receive our weekly content directly by email.

    Do not like being harassed by email? You can register for the site but do not submit your registration to the weekly email updates.

Do not disconnect UPS voltage installation Voltage drop "Lightning protector"?


cxzvcxv

Recommended Posts

  • תגובות 170
  • Opens on
  • Last comment
Who are you buying from the 4 minutes?

At the moment it can change when I know the exact number of protectors Overall I will again compare prices between the other stores and find the best price but now at Isfar (yes importer of And Sony PlayStation)

Question: If my phase is on the left side, what is the procedure for transferring it to my right?

And I want to buy one shield of 4 thin.

Want to give me details about where the purchase is made and when?

I do not understand this but I'm sure that 11010010110 Cannon knew how to answer that ..

No problem :) The more people there are, the better price we will get (as soon as I know the exact number of how many shields I will be able to say)

I am going there to buy because I live in the Sharon area and it's on the way to errands so I prefer to go take my shields instead of paying for a shipment .. But if you live far away and you can not get to Herzliya then there is no Problem with shipping also ... The shipping section costs 40 NIS .. (shipping costs 40 even if you order 1 and also if you order 10) ...

Link to content
Share on other sites

"Protections on the main waves" on the house (a small lightning bolt in the electric panel):

The main shield and the smaller shield that plugs into the socket provide a gradient surge protection (the main absorbs more and leaves less to the secondary), this is already some level of protection (the shield in the socket alone is meaningless in surge protection,

He's still not going to stop all the surges (and maybe not even the majority)

I have no shred of information on manufacturers / quality / etc of these defenders. If in places such as America (if an electricity system is inferior to ours in certain things) they install such houses here and there, here nobody knows them at all (in domestic use). If the shield is built in a problematic way (or installed in a problematic electrical system ... and in many homes, especially old ones, it is problematic), it can be a fire hazard or explode when burned

If the shield is burned, it can continue to jump the switch when trying to lift it, meaning that there is no electricity at home until the burnt shield is removed from the board (which is a matter of whether the board, not removing the shield from the socket)

Would you recommend such? - Emotionally I am somewhere between "Think about it ..." and "Just waste money / paranoia." I do not have enough to say anything else

What is:

If there are known electrical problems in the house (electrifying, small falls or small ups and downs in the brightness of the light sometimes and it seems that the problem does not come from the outside, switches are just "jumps") .... This is the opportunity for the electrician to check what happens

If the electrician opens the board, etc., hear what he has to say about other things he finds, if he finds: burnt / heated connections, detached lands, and sometimes things can be found (made by some previous electrician) that surpass any imagination ... ...

If the phase on the left:

Short answer: Turn the wires in the socket to the right order

A long answer: It is a sign of unprofessional work, and the reverse threads may only be from a small one who did wrong there. Check the area where someone connected this socket (eg another socket from which it splits) and make sure that all the wires are connected to the right places, tight screws, and that there is nothing there that just looks wrong.

Phase ~: brown / red, right hole

0: Black / Blue, Left Hole

Earth ⏚: yellow-green / white, lower hole

Consider whether in the specific place you want a shield, and how long the delay is: If he jumps "just" you will sooner or later throw him out .....

Link to content
Share on other sites

Okay, thank you very much for the answers.

As for the time spent, I understand that the difference between the 4 and the 10 X is actually the protection of the power only. In 10 seconds, the internal parts of the computer are guaranteed to drop / jump because they can cool down at this time. Compared to the supplier, who requires at least one minute to recover. hearing:

10 sec = internal components guaranteed, but danger to provide.

4 min = components + secure provider.

did I understand correctly?

And another question, based on your knowledge / experience - how common is the electricity systems in Israel decrease / increase in household electricity voltage beyond levels that the defender continues to operate in them, so that he will disconnect the products that work through him / as you mentioned that he will jump "just"?

Link to content
Share on other sites

The internal hardware does not need time Some. The components that need cooling time are all in the carrier

Doubt has large capacitors. When connected to electricity at the moment of connection, they are charged immediately, with the shock of a high current (eg, the spark that is connected to a computer or laptop plug). The capacitors and bridge at the input (which converts the AC to DC) are not built to withstand such a current shock. They want to prevent them from receiving such a blow. A few blows like this one after the other can destroy them

Add a component that limits the initial blow, but does not interfere with the work of the power after it is already plugged in. The component is NTC - anti-temperature dependent. When it is cold it has high resistance and lowers the current that passes. As a result of the initial shock (weakened, but still significant), it gets hot and resistance decreases. As long as the supplier is working the NTC is hot, if the resistance is close to 0 and therefore not found there and does not affect the continuation of the work of the supplier

If the current limit that NTC gives, the power is unobstructed by the initial shock of cold power (and can be turned on and off each day by a power strip breaker, etc.). The problem is whether disconnectors and connectors provide the voltage quickly - the second time when the voltage reaches the NTC is still hot, does not affect the current and therefore the other components absorb the maximum blow. It may not happen, but when the power jumps it can also disappear and come back several times in a few seconds - and it can be too much

The suspension of the shield should allow time for cooling of the components. Preferably the NTC, so that once the shield reconnect the voltage is already cold and prevents the blow. It takes something like a minute to cool a large NTC. If not, then at least the "few drops of voltage in a few seconds" will instead turn off 10 seconds in a row and one run (and one shot). This gives the shield of 10 seconds

Now, sometimes a voltage drop (for example, shortened by someone flying and hitting electric wires at the end) lasts longer than 10 seconds, and then the 10 shield of seconds will suffice to reconnect the voltage after each fall. The shield of 4 minutes is not, so with it it will still be a single long shutdown and not a few shutters and infections

Long-term extinguishing has another advantage: once the voltage falls or when it returns, it can be accompanied by a shock. The shielding ability of the defender is low, but if at that moment the defender was in a detached position (suspended), the break is complete and he will not pass the blow. A long-stay shield actually leaves the computer connected only in the first fall (which can not be prevented) and not in all subsequent falls if they occur at increments of more than 10 seconds

On the other hand, 4 minutes after a small voltage drop can be annoying ... and if that bothers too much you just take out the shield and work without - then it was unnecessary from the beginning .....

4 delay for full minutes is required for things like refrigerators, etc. - where you have to wait for the pressure of the gas to drop before the compressor restarts. Operating the compressor when the gas under high pressure can cause it not to start, but stand in place and warm. It has a defense that is supposed to jump in this case, but sometimes compressors are still hurt by these situations despite the defense

Power ups and downs (for a few seconds or more - and when you see that the light is rising or falling significantly) are not supposed to happen in the norm, these are malfunction situations where we want the shield to disconnect. And, on the other hand, they can be a sign of a big problem in the system

What I said about him is small falls (you see that the light falls for a fraction of a second - mostly in incandescent light). These can also be a sign of the problem (a tight connection that heats up somewhere - a wire in the electrical panel, a main cable of the building, an electrical plug that is not screwed to the end, etc. - and therefore a test is needed), but sometimes these are simply the effects of an electrical system that is not built for the load that stands On it are old houses with a thin main cable, and each time someone lights the air conditioner, the voltage drops to a fraction of a second and returns. If the shield is too sensitive it can react to these small falls - disconnect to 10 seconds or 4 minutes, although without the shield, nothing would happen to the computer.

Link to content
Share on other sites

Okay, thanks again for the detailed explanation.

There is only one thing I have not understood so far, and I would be happy if you could solve it for me.

From the way I understood things, in any case there is no danger of damage to the rest of the computer in the changes in voltage, but only to provide.

So what other components of the computer may be affected?

And what can be done against it?

Link to content
Share on other sites

In short -> the 4 minute delay will be better for the computer. This is what things look like.

If the supplier is burned it can also burn other parts on the computer like motherboard and / or processor etc. Depends on the quality of the supplier (probably).

Maybe I'll join and buy one of the 4.

But still, what happens with the hard disk on your computer? Since it is mechanical, the plate turns and if there is a power failure in the middle of it writes, the hard disk can break down ...

Is not it better to buy an uninterruptible power supply? But I do not understand what is better / less.

11010010110, do you understand that as well?

Link to content
Share on other sites

In short -

Is not it better to buy an uninterruptible power supply? But I do not understand what is better / less.

11010010110, do you understand that as well?

Please read well from the beginning of the discussion, it is nice to join and ask questions already asked lol

http://hwzone.co.il/community/threads/557765-%D7%90%D7%9C-%D7%A4%D7%A1%D7%A7-UPS-%D7%9E%D7%99%D7%A6%D7%91-%D7%9E%D7%AA%D7%97-%D7%A0%D7%A4%D7%99%D7%9C%D7%95%D7%AA-%D7%9E%D7%AA%D7%97-%D7%9E%D7%92%D7%9F-%D7%91%D7%A8%D7%A7%D7%99%D7%9D/page4?p=5004763&viewfull=1#post5004763

I want to buy the 10 seconds for the computer and 4 minutes for the device with a compressor, in addition to the Q-trade shield I will also use a simpler shield,

Also, I do not use UPS. I realized that these devices consume a battery that may end. (You have to buy a new battery.) Therefore, it should be used during the winter season (and cut off when you do not need it), at least when there are many storms and power failures.

In addition, the most important of these is that these devices emit a lot of radiation. Even 110100 recommended using as much as possible from a human body, or, rather, the device is high.

Please, and thank you very much to 11010010110 :)

Link to content
Share on other sites

The circuit in doubt can convert a high power (at least the maximum of the power of the power supply) and pull out much higher voltages than 5 and 12 on the output. For it to remove the exact voltages - and to stabilize immediately if any change in power consumption on the part of the hardware - there is a control system that measures the voltages in the output and controls respectively the power converted by the power

If it paralyzes this control system, a situation can happen (for a moment or a long time) when the power converter converts the maximum power it can, and the tensions that come into the computer jump to a high value and can burn something

The control in different suppliers is built in different ways - for example, on the 5VS track there is no protection at all (the whole track works on a primitive circuit from 2 transistors, as there are cheap USB chargers, without a "smart" control) - if the control does not work it does not work, From 5V. In high-quality suppliers, the control is done by floaters that have more complex and "smart" circuits, and also include protections. With more advanced vendors, the defenses are also more advanced - and they are less likely to allow the vendor to continue to work in a bad state

Hard disks from 20 The last few years have been built to work out if you turn off a sudden voltage without mechanically happening to them

Sudden shutdown can cause information loss (written at that moment) and sometimes destroy the file system. The protection against these is at the operating system level: Advanced file systems contain a journal - the "performance log" of the writing processes to disk. If a sudden shutdown occurs, the operating system can then find out exactly where the failed writing was, and run a patch that is usually focused and accurate - instead of the journalless situation where the damage is not known and if the operating system is doing the wrong It can damage a lot of information stored on the disk

That's why when you restart your computer after a sudden shutdown, let it do scandisk / fsck / etc (Windows should start normally but do not cancel the subsequent scan of the computer)

Common file systems that are protected by journal are NTFS and ext3 / ext4. File systems without protection are FAT / EXFAT and ext2

Link to content
Share on other sites

Hey friends

How much does it cost? I will know the beginning of next week .. (first I need to know exactly how many shields and which) you can see the protectors on the manufacturer's website: http://www.qtrade-intl.co.il/%D7%A9%D7%A7%D7%A2%D7%99-%D7%94%D7%92%D7%A0%D7%94-%D7%9C%D7%9E%D7%95%D7%A6%D7%A8%D7%99-%D7%97%D7%A9%D7%9E%D7%9C.htm

The payment I believe will be most convenient for all of us through ? Or do you prefer the store to call and ask for a credit card?

Delivery costs NIS 40 (no matter if ordering 1 or 10) can be collected in Herzliya at no cost ..

I will ask anyone to write here exactly what shields he wants and how much ..

Because I got a mess in the messages ..

So Rico, Spring, none77, spirox, save, Jabberwock - and anyone else who wants to join please write here some kind of shields and some.

Link to content
Share on other sites

ארכיון

This discussion has been archived and new comments can not be added.


  • Latest news

  • Buzz-Zone: Everything hot on the net

×
  • Create new ...

At the top of the news:

new on the site