what is the input voltage tolerance acceptable range of UPS Model: SUVT

[Anonymous user]

Hello ,

I am getting frequent alerts as below mentioned .

Name     : APC SUVT 15KVA

Code: 0x0210

Informational - UPS: An input voltage or frequency problem no longer prevents switching to bypass mode.

after download Data log & filtering we found 

UPS - B

Date 20-Aug-18	Time 9:06:17	Vmin1 220.6	Vmin2 205.7	Vmin3 226.3	% 91%
20-Aug-18	8:56:17	221.4	205.9	222.9	92%
20-Aug-18	8:46:17	222.5	208.3	221.9	94%
20-Aug-18	8:36:17	221.1	209	221.3	94%
20-Aug-18	8:26:17	221.2	205.3	222	92%
20-Aug-18	8:16:17	220.2	207.4	223.1	93%
20-Aug-18	8:06:17	221.4	205.5	224.5	92%
20-Aug-18	7:56:17	222.9	209.7	226.8	92%
20-Aug-18	7:46:17	225	212.4	226.6	94%

UPS – A

8/20/18	9:08:49	222.2	205	225.4	91%
8/20/18	8:58:49	220.7	206.3	222	93%
8/20/18	8:48:49	223.2	207.6	222.9	93%
8/20/18	8:38:49	221.1	208.3	222.1	94%
8/20/18	8:28:49	221.6	204.5	221	92%
8/20/18	8:18:49	222.2	207	224.7	92%
8/20/18	8:08:49	221.3	205.1	223.8	92%
8/20/18	7:58:49	223.5	209	223.8	93%
8/20/18	7:48:49	224.9	212	227.8	93%

by compare between phase1, phase2, phase3 the difference voltage is 6% - 9%. 

what is the acceptable rage of UPS input voltage ? Less than 5%?

Please advice.

Thanks,

[BillP]

Hi Veasna

This event also occurs not only for voltage fluctuations but also when there is interference and noise on the input waveform, which is most likely the cause here.

The logs are only giving you a 5 minute interval snapshot of the voltages as well, putting a power analyser on the utility power will give you a much more complete picture of what is going on.

Regards

Matt

[Anonymous user]

Hi Matt,

Thanks for your answer.

I would like to attached file Data log & Event log

could you help analyze what is the root cause & issue?

Thanks,

Veasna.

[BillP]

Hi Veasna

At this point it would be best to call your local APC technical support on +855-23-964-311 or using this Contact Form , so it can be handled by agents who deal with the SUVT product.

Regards

Matt

[Anonymous user · Accepted solution]

Dear All,

As attached file I have capture from my ups Model SUVT. The event log shown the calibration is start & completed, But I don't know who was do it or it was automatic start by UPS its self or it does by virus or else? please kindly advise.

Thanks,

Veasna.