Please could someone tell me what this means in turkish? Wdevre kaybi

Sorry hand slipped it should be "devre kaybi"

loss of electrical power / circuit

OK - I was told it was soomething to do with the army!! Thanks Marionin

Well. devre is also a period of time.

Devre kaybi: loss of a period of time?

Depends on the sense of the whole sentence.

Which makes more sense to you?

Army has periods, I don't know how many time in a year but for example, some guys join to the army in February, another in November. If one can't join in the suitable "devre" because of any formal/informal obstacle, then he loses that period and has to go in other devre/period. that must be devre kaybı, but I am not sure at all

Call up times (summons) for military are four times a year: February, May, August, November.