Power Surge Blowing Transformer

[Boycee]

Have had an electrical blind installed for velux window.

The transformer has blown twice in three weeks. The transformer is plugged into a socket in the house.

The company are saying their may be a faulty appliance plugged in on the circuit causing a power spike/surge.

Is this a common problem? what is a common cause of power surges? and would a faulty appliance blow a transformer on another plug?

I have plugged other items of equipment in with no problems, lap tops and lamps.

Any advice please? i know a little bit about electrics.

 

[Andy™]

sounds like a dodgy transformer. if it was power surges, then i would expect problems with other stuff

 

[Evans Electric]

Sounds like a letout to me Boycee.

A transformer like that should be fine really .   Have you had some local lightning strikes in your region ? 

Do you use an arc welder in your living room at all ?  :innocent

Dare I say it.... cheapo crappy transformer with dodgey laquer seperation  from  u no where . 

There are problems with cheapo plug-in cellphone chargers from Uno Where ...the lacquers break down while charging and 240 V appears on your phone ...not to be recommended.

 

[steptoe]

Sounds like a letout to me Boycee.

A transformer like that should be fine really .   Have you had some local lightning strikes in your region ? 

Do you use an arc welder in your living room at all ?  :innocent

Dare I say it.... cheapo crappy transformer with dodgey laquer seperation  from  u no where . 

not very often, and it was in the kitchen, and all my stuff still works, AFAIAA, 

 

[Boycee]

Ha Ha, no arc welding in living room!

So you think it's the transformer? I dont know where they got it from.

I have have been told it could be faulty wiring. Is this a common cause of spikes? Also heard loose connections could cause the problem.

but other things i have plugged in have been fine.

 

[ProDave]

I presume this transformer has it's own socket that's not normally used for anything else.

It's got to be worth checking the connections are tight in there?

 

[Boycee]

No it is just plugged into a double socket. Other stuff is also plugged in at the same time, some times.

Is that a problem. Would loose connections cause it?

 

[m4tty]

Does the blind go up and down nicely when it works or is it getting stuck ?

Sounds like cheapie Chinese trannys

Be a good idea to get the socket circuit checked by a sparks if you know one to rule out your installation

 

[Boycee]

Well the transformer they claim costs £120 so i dont think its a cheapo one?

How would a dodgy circuit cause a power surge though?

Apologise for all the questions, not experienced with this sort of thing

Also because i dont think i have made it very clear. Two have blown in quick succession.

The way i worded it might have confused people.

 

[ProDave]

Can you post a picture of this transformer, or a link to where you buy it so we can see what it is?

£120 sounds like somebody's p**s take over inflated marked up price to me.

 

[Steve3948]

How is the blind operated, I did one some time back and the unit/transformer was wireless operated from remote switch, so not just a transformer.

 

[OnOff]

Did anyone see Fake Britain the other night? Bit on it about fake laptop chargers blowing up. All CE marked etc. Dodgy Chinglish wording. Nasty:

Season 4 Episode 4

http://www.bbc.co.uk/iplayer/episode/b01sb4g0/Fake_Britain_Series_4_Episode_4/

Best thing that could happen to that tie though!