Uninterruptible power supply
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Is there any type of dual-channel uninterruptible power supply that isn’t a UPS, one that takes in two 220V AC inputs, with one as the main supply and the other as a backup; when the main supply fails, the backup takes over automatically, with a switching time of less than 10 ms? The rated current is around 20A. Has anyone used such a device? Could you please provide information on its model, manufacturer, and reliability in use? Thank you.
There are manufacturers that produce specialized automatic dual-power switching devices, but it’s not clear whether the switching time meets your requirements; you can check online
It’s very simple: there are many dual-circuit distribution boxes available on the market that can switch automatically, and once you connect a UPS, that’s it – you no longer need to worry about switching times
No UPS needed; just use a dual-power supply
Wouldn’t using a UPS better meet your requirements?
Is there any type of dual-channel uninterruptible power supply that isn’t a UPS, one that takes in two 220V AC inputs, with one as the main supply and the other as a backup; when the main supply fails, the backup takes over automatically, with a switching time of less than 10 ms? The rated current is around 20A. Has anyone used such a device? Could you please provide information on its model, manufacturer, and reliability in use? Thank you. Haven’t used it. Since it’s that important, UPS is used for power switching. If it’s not important, add a steady-state relay to achieve do-not-disturb mode – I think this might work; the do-not-disturb circuits used in regular smart regulators could serve as a reference. I mean, there’s no need to go to such extreme measures either.
For reliability, first use a dual-power supply for switching, and then use a UPS to power the load.
A circuit can be designed using a relay.
There are models available with a dual-power switching function, and the minimum switching time is 0.8 to 4 seconds. I’m not sure if this meets your requirements
There are no pre-made products of the kind you mentioned; to achieve automatic switching, two separate UPS units along with an automatic switching device are required. This approach is already widely used in petrochemical plants.
Dual power supplies and Riichi have this feature. Switching time 3ms. Call and ask
There is a product called a \"dual-channel uninterruptible power supply unit\" that can provide two channels of intrinsically safe power to supply data monitoring stations and transmission repeaters. This power supply unit also has a backup power function, allowing it to continue supplying power to the equipment for over 4 hours even when the AC power supply in coal mines is interrupted.
Could you tell me your contact information? Thank you
Reply to post 1391176173 on floor 13: Huagong
I have various dual-input uninterruptible power supplies available, and customizations can be provided; many of these customized products are used in industries such as ATMs, POS machines, tax control systems, rail transit, and fire protection. Our company’s website is www.cnspower.com.cn. My surname is Che, and my phone number is 13631616685