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Anonymous user
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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:36 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:36 AM

high frequency

What happend to the UPS if the input supply frequency above the 60Hz? like 80-100Hz then back to normal again..though the input supply voltage is normal only the frequency kept on varying.

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BillP
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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

i wasnt sure what changes the frequency inside of the Smart UPS x167 options..hm.

See Answer In Context

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BillP
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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:36 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:36 AM

the UPS would operate on battery until the frequency returned to the normal range. so if it was long enough, the UPS would completely discharge its batteries and turn off and then monitor the incoming AC power before turning on.

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

hi do you have any idea if their is device/ equipment to stable the frequency? so that the UPS will not kept on transffering to battery mode.

thanks

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

the only thing i can think of is some type of transformer but you'd need to know exactly what frequency you are expecting to find a transformer that can adjust it correctly.

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

i want to have 50/60 Hz for the output and for the input side can range up to <50\Hz to 200KHz. do you think transformer can do this?

Thanks

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

the set up of the ups is this., the UPS and AC Motor was connected to the same source, when the motor activate, the frequency will goes high and almost reach 200KHz and after back to 50Hz, so basically the UPS kept on transferring to battery.,E

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voidstar_apc
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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

It sounds like when your AC motor turns on, one of two possibilities happens:
1) The motor introduces noise on the line or
2) the motor briefly draws more current than your circuit can handle.

If it's just a noise problem, you could try adjusting the sensitivity of your UPS.

On the other hand, if the motor briefly draws more current than the circuit can supply, it will distort the line, cause the UPS to sense a problem and then switch to battery. Normal equipment connected to the same circuit may remain unaffected because their power supplies are not sensitive to a brief disturbance. The UPS doesn't have a choice and must react immediately because the length of the disturbance isn't known ahead of time. In that case, your best bet is a beefier circuit or keeping the motor and the UPS on isolated circuits.

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

A transformer will not change the frequency of the line. While double-conversion UPSes will put out 50/60Hz regardless of input frequency, I'm not sure they go all the way up to 200kHz. They might need to run off battery once it gets that high. Also, bypass is unavailable while the UPS is doing frequency conversion.

200kHz is four orders of magnitude above nominal. How are you getting those kinds of frequencies?

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BillP
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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

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Posted: ‎2021-06-29 07:41 PM . Last Modified: ‎2024-03-21 02:35 AM

i wasnt sure what changes the frequency inside of the Smart UPS x167 options..hm.

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