sud98
Well-Known Member
One of the FM's had bought specialized fast switching circuit breakers that he had installed to prevent overload to hit any of the devices. He had imported it from UK, do those kind of devices help?
UPS/Power conditioner for HIFI systems?
- Thread starter SuyashMoorpana
- Start date
Folks, I've gone through many threads and information on power management. There are varied thoughts and solutions. I've personally used a simple UPS and also an isolation transformer. There are pros and cons of different approaches. So, I find it a bit confusing.
What are the main points one should consider before making a decision? From what I understand, one of the main issues is power surges and voltage fluctuations. Anything else that could harm the equipment? Also, there is EMI/RF noise that could be filtered out. (I've personally drawn a dedicated power line/phase for the audio system).
I'm considering a different/ better solution and Rontek Aviron LX or HTB sounds good. What are your thoughts on this device or similar ones. Any other recommendations?
(For me fan noise is a deal breaker)
What are the main points one should consider before making a decision? From what I understand, one of the main issues is power surges and voltage fluctuations. Anything else that could harm the equipment? Also, there is EMI/RF noise that could be filtered out. (I've personally drawn a dedicated power line/phase for the audio system).
I'm considering a different/ better solution and Rontek Aviron LX or HTB sounds good. What are your thoughts on this device or similar ones. Any other recommendations?
(For me fan noise is a deal breaker)
ankitbhargava
Well-Known Member
Found this explanation good for beginners with no electrical knowhow
The Effects of Power Outages on Computers And Electronics - Penny Electric
Although modern electronics have several safeguards making them less susceptible to damage that may be caused by power outages, surges, and electrical interference, there are still risks and precautions that users can and should be aware of, especially if their businesses rely on their continued...
pennyelectric.com
Top 15 Common Electrical Problems and Solutions - Panasonic Life Solutions India Blog
Learn how to troubleshoot and resolve the common electrical wiring problems. Click here to see most common electrical problems & their solutions!
lsin.panasonic.com
ankitbhargava
Well-Known Member
One of my friends who work for Honeywell and consults for commercial projects (electric) told me that having RCCB (Residual Current Circuit Breaker and a proper SPD (Surge Protection Devise) between Mains and Meter is the first and important start towards protecting your equipment and also the personal safety.
Do we have any FMs here who have this in place and still had equipment breakdown despite of this protection?
Do we have any FMs here who have this in place and still had equipment breakdown despite of this protection?
None of these help when you have consistently high voltage coming from the power distribution company. I have RCCB from Schneider Electric for all rooms. Ever since the lockdown the voltages being supplied here at Pune has been consistently hovering around 250 volts. Most equipment are designed for around 100-240 volts. I have lost apple phone charger, two computer SMPS have gone burst. My water purifier SMPS fried. My Yamaha AVR SMPS got fried. My Allo shanti power supply fuse blew off. Each time it has been the SMPS and all of this has happened after the lockdown. Before the lockdown the voltage never used to go above 230 v. Maintaining 230 v requires better power equipment. I believe India has diluted the regulation requirements for economic reasons / allow certain private players to install lesser costing equipments for power generation. https://www.hifivision.com/threads/...ower-equipment-for-ht-setup.87835/post-987314
Since then I have installed voltage stabilizers in all rooms. Since then I have not lost a single equipment.
jigarpatel
Active Member
I was thinking about installing main line voltage stabilizer https://www.vguard.in/product-details/vgmw-1000-plus-mainline-stabilizers
Any idea how good they are ?
They are good. Many in my apartment complex have installed these after the lockdown spate of blowing television sets and kitchen equipments. I took a different route in having stablizers installed in every room. Only my hot water geysers are not on stabilizers. Rest all, including AC, dishwasher, washing machine, clothes dryer, micowave oven, electric oven, fridge, audio equipments computers, etc are on automatic voltage stabilzers.
Subbu68
Well-Known Member
OMG!!!
Purpose of RCCB is not to protect your equipment but YOU. RCCB and ELCB are the same. They won't act until you touch an equipment case that has phase or neutral touching it and ground it through your body rather than the safety earth.
SPD - yes is for protecting the equipment from surges.
Last edited:
Subbu68
Well-Known Member
CBs work on the principle of current detection while surge protectors work by detecting fast front surges. Fast acting CBs will protect the equipment from internal short circuits or overloads.
The fastest electro-mechanical CB is about 1.5 cycles or 30ms at 50Hz. And this is used in 400kV or above or for generators.
While surges do their "job" of licking clean your equipment in a few microseconds. No CB can protect. You need proper surge protection.
This may be an IGBT based electronic circuit breaker. Still it's function is for overload protection.
If you got more information please share. It is interesting to know about it. As far as Google goes it does not protect from surges.
Subbu68
Well-Known Member
Indian standard is 240V and +/- 6% regulation or 225.4V to 254.4V. This is normally at the service point. 6V above nominal shouldn't fry anything
If you have 250V at your sockets then at the transformer it is set high to cater for any voltage sag at the far end. And your apartment may be close to the trafo?
The trafo is inside the complex.Indian standard is 240V and +/- 6% regulation or 225.4V to 254.4V. This is normally at the service point. 6V above nominal shouldn't fry anything
If you have 250V at your sockets then at the transformer it is set high to cater for any voltage sag at the far end. And your apartment may be close to the trafo?
Subbu68
Well-Known Member
These trafos have off load tap changers that don't act automatically. The tap may be set high so as to have nominal voltage at the load farthest from it rather to cover the voltage drop at that end. You may be close it so you have near no-load voltage with not much drop in the cable?
Subbu68
Well-Known Member
I should have added "electrically close to the trafo".
Subbu68
Well-Known Member
Surges are classified into two - a Switching Impulse from the network that has a rise time of 250 microseconds and a tail of 2500 microseconds. These are important above 220kV.
Lightning Impulse are very fast 1.2 microseconds rise time and a tail of 50 microseconds. These are the ones that affect us consumers. They can strike the lies supplying our houses and that's it.
As you wrote nothing is better than complete disconnection.
The other kind is surge for common folks but are swells or spikes caused by faults in power systems or light loaded transformers with high tap setting etc. For these a properly selected MOV should be good enough.
I got this as a temporary fix between my online ups and my hi fi setup. Cut off time is specified as 20 ms
ankitbhargava
Well-Known Member
My Krykard (servo) did not help protecting my equipment, had it installed dedicated to on HT equipment
servo stabilizers are slow. They depend on a motor to move an arm. In many cases they may not be enough to save delicate electronic items. For fast voltage corrections one must use static voltage stabilizersMy Krykard (servo) did not help protecting my equipment, had it installed dedicated to on HT equipment
Energy Saving Motor | Energy Savers India Bangalore
ES Electronics (India) Pvt ltd offers energy conservation products since the year 1990. The company has more than 800 installation in India, Africa, America, Gulf, Europe & Foreign station companies.The Products manufactured by ES Electronics has been Tested and Certified by Central Power...
www.energysaversindia.com
Differences Between Servo Stabilizer and Static Stabilizer | Servomax Limited Blog
Stabilizers – the ideal electrical devices for voltage conditioning – have become mandatory in numerous applications. The Voltage rises and dips often appear frequently or occasionally – they can be e
www.servomax.in
ankitbhargava
Well-Known Member
I wish I had known this earlierservo stabilizers are slow. They depend on a motor to move an arm. In many cases they may not be enough to save delicate electronic items. For fast voltage corrections one must use static voltage stabilizers
Energy Saving Motor | Energy Savers India Bangalore
ES Electronics (India) Pvt ltd offers energy conservation products since the year 1990. The company has more than 800 installation in India, Africa, America, Gulf, Europe & Foreign station companies.The Products manufactured by ES Electronics has been Tested and Certified by Central Power...
Differences Between Servo Stabilizer and Static Stabilizer | Servomax Limited Blog
Stabilizers – the ideal electrical devices for voltage conditioning – have become mandatory in numerous applications. The Voltage rises and dips often appear frequently or occasionally – they can be e
We need a Master Thread on this Topic to tried and tested solution for the power issues.
Forum has multiple confusing threads and FMs like myself who have zero electrical knowledge gets carried away by solutions which may not work in most of situation.
Do you think Online UPS (double conversion) is answer to most of the common power problems?
This was discussed earlierI wish I had known this earlier
We need a Master Thread on this Topic to tried and tested solution for the power issues.
Forum has multiple confusing threads and FMs like myself who have zero electrical knowledge gets carried away by solutions which may not work in most of situation.
Static Stabilizers vs Servo Stabilizers
Dear FMs I am scouting for a stabilizer for my system nowdays. Many people on this portal and many other threads adviced to go for a servo based stabilizer. I did a quick comparision on the internet and complied some information on static stabilizers and servo stabilizers. I have no views on...
www.hifivision.com
I think this will be at the cost of harmonics. For video this shouldn't matter. But if someone has excellent ears the harmonics may not give the best audio quality.
In reality, we should be holding the govt accountable. We pay for electricity apart from taxes. But that is a rant for another day and probably another thread.
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