Return to the thumbnail page Display/hide file information See previous file See next file

Unstable mains voltage in my hostel

Unstable mains voltage in my hostel


When I returned to my hostel from my father home, I've noticed that the lighting in the hostel is unstable. After I turned on my computer and my computer table lamp, I've noticed that the LED filament lamp exhibited strange dimming and flashing as you can see in this video once a min and my UPS shutdown software displayed voltages under 200V. There was one case that the voltage was hit 193.1V.

youtube_FtD63zqTwQU.jpg youtube_EXW6kbCLX5M.jpg youtube_wkZrnKPtKBw.jpg youtube_4_kjzFX7JlY.jpg

File information

File information

Download: Download this File
Filename:youtube_wkZrnKPtKBw.jpg
Album name:dor123 / Videos
Keywords:Miscellaneous
File Size:30 KB
Date added:Sep 12, 2020
Dimensions:480 x 360 pixels
Displayed:57 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-185800
Favorites:Add to Favorites
Comments
dor123
Hero Member
*****
Offline

Gender: Male
View Posts
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
Sep 13, 2020 at 01:06 AM Author: dor123
Update: It turned out that this is the central A/C of the upper floor causing this, as one of the tutors today said that it is malfunctioning, and I'm guessing that it is the compressor that is unable to start, causing these effects on the mains voltage.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

rjluna2
Sr. Member
****
Offline

Gender: Male
View Posts
View Gallery

Robert


GoL
View Profile Personal Message (Offline)
Sep 13, 2020 at 08:53 AM Author: rjluna2
It could be failing capacitor that starts the compressor motor

Pretty, please no more Chinese failure.

dor123
Hero Member
*****
Offline

Gender: Male
View Posts
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
Sep 13, 2020 at 09:06 AM Author: dor123
I think so. But I don't know how it affected the voltage in its phase at my hostel so much.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

rjluna2
Sr. Member
****
Offline

Gender: Male
View Posts
View Gallery

Robert


GoL
View Profile Personal Message (Offline)
Sep 13, 2020 at 09:32 AM Author: rjluna2
When a failing capacitor happens, it tends to short them out.

Pretty, please no more Chinese failure.

WorldwideHIDCollectorUSA
Newbie
*
Offline

View Posts
View Gallery

View Profile Personal Message (Offline)
Sep 18, 2020 at 11:50 PM Author: WorldwideHIDCollectorUSA
Imagine the mains voltage in a US home dropping to below 100v.
dor123
Hero Member
*****
Offline

Gender: Male
View Posts
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
Sep 19, 2020 at 12:13 AM Author: dor123
The problem here, isn't related to the IEC, but to my hostel. The central A/C compressor of the upper floor of my hostel, failed, and each time it trying to start unsuccessfully, the voltage dropped down to ~194V and than rose back to 217V. Turning off the breaker, solved this problem.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

WorldwideHIDCollectorUSA
Newbie
*
Offline

View Posts
View Gallery

View Profile Personal Message (Offline)
Sep 19, 2020 at 12:14 AM Author: WorldwideHIDCollectorUSA
Did this cause any damage to any of your appliances?
dor123
Hero Member
*****
Offline

Gender: Male
View Posts
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
Sep 19, 2020 at 12:17 AM Author: dor123
No.
But see these videos of a real drop in voltage in my hostel that caused by a HV line of the IEC:
1. https://www.lighting-gallery.net/gallery/displayimage.php?pos=-178182
2. https://www.lighting-gallery.net/gallery/displayimage.php?pos=-178183
3. https://www.lighting-gallery.net/gallery/displayimage.php?pos=-178183

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

© 2005-2020 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery