Protection for the AVR

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nimz
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#1 erstellt: 23. Mrz 2006, 07:11

hi all,

Me just got an SR 4600. Am looking at a cost effective protection against voltage fluctuations etc.

What woudl u suggest?

A 0.5 KV voltage stabiliser is wot the dealer suggested.

Would like to know forum members takes on this?

thanks

Nimz

nietzsche
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#2 erstellt: 23. Mrz 2006, 10:12

hi

Try v-guard's electronic stab L 100. It is 1 kva and will cost around 2.1 k.

nimz
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#3 erstellt: 23. Mrz 2006, 12:00

thanks nietzsche.

But is 1 KVA the minimum required for an AVR?

A 0.6 KVA UPS (ones used for PCs) is less than 2K...

Would an UPS be better than a stabiliser?

Guess am a lil too ignorant on these matters...

thanks for the help!!

Manek
Inventar

#4 erstellt: 04. Apr 2006, 12:01

Buy a good servo stabilizer with a built in isolation transformer. 1kva is good as you may need headroom and you can put your cdp/dvd and tv on it too.

avoid the small UPS systems....they dont give good sine wave output when switched on battery.

manek.

nimz
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#5 erstellt: 04. Apr 2006, 13:14

thanks Manek

Was thinking on the V Guard 1 KVA servo stabiliser.

Now i shall go for it!!!

nietzsche
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#6 erstellt: 05. Apr 2006, 05:22

Hi,

If the voltage fluctates frequently, servo motor will rotate to make correction and it will make noise. The brush needs cleaning once in a year.

If possible try a CVT, if it is isolated properly, it won't give any hum. Keep it away as far as possible from the AVR.

Try v-guard servo electronics stab. preferably go for 1 kva servo, so that u can connect CDP also.
As suggested by manek, avoid ups.

particleman
Stammgast

#7 erstellt: 12. Apr 2006, 07:05

This is a very helpful thread. I do have an additional question though, if I may:
Which heavy-duty UPS would anyone recommend?

I understand that a weak UPS is unadvisable for the reasons cited. However isn't it also a valid point that if there is loss of power (as happens very often in our dear country), and the speakers are playing at a fairly high volume, they will be brought to rest suddenly with that awful thump? As a layperson I would think that a UPS would merely serve as a safeguard against this and allow the user to power down the equipment after taking the usual step of turning down the volume.

Please let me know your thoughts on this.

nimz
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#8 erstellt: 12. Apr 2006, 09:26

particleman schrieb:

This is a very helpful thread.

Thank you!! thank you!!

Behram
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#9 erstellt: 17. Apr 2006, 08:14

particleman wrote

However isn't it also a valid point that if there is loss of power (as happens very often in our dear country), and the speakers are playing at a fairly high volume, they will be brought to rest suddenly with that awful thump?

I dont think so. As soon as the power is interrupted the output relay de-energizes thus disconnecting the speakers. There will be no such thump. Exceptions to the rule, when there is a large electrolytic cap in parallel with the relay coil !

Behram.