Low voltage spotlights problem

[p11jor]

Hi guys wired in some spot lights on transformers few weeks ago, just had a call to say they stay on for a few hours then go off by themselfs for about half an hour then go back on again.My first thoughts are transformers overheating.....any thoughts on this would be great ?CheersPhil

 

[telectrix]

it sounds like the transformers may be shutting down to prevent damage. are the spots halogens? is it 1 tranny to 1 spot? are the trannies rated correctly?

 

[SimpleSimon]

Thermal cut outs?

 

[telectrix]

strange to affect all at once if separate trannies. could it be a poor connection on the 230V side?

 

[p11jor]

Hi telectrix,

Stupid of me the builder it was for supplied the trannys for the spots, I have done that much work over tge past few weeks I can't even remember what they are, going to pop round after me tea to investigate, I am sure it was one tranny to each spotlight?

 

[p11jor]

Ahhh thanks, I shall check my connections and see if there fine, thanks alot

 

[p11jor]

Found it!! Turns out this job I only changed one of the fittings on this due to a dodgy spring, 65watt tranny 6 x 50watt lamps.......could cook a chicken on them !!