Strange power surges in home appliances

my appliance seem to have a kind of a fluctuation in power - in appliances like fridge and exhaust fan I can tel this by the normal operating sound getting softer and louder in a loop. light bulbs dim a bit and get brighter again, and it happens even with only one appliance on in the whole apartment.
The electricity doesn't trip all that often, but I would like to get this solved. Any advice?
Thanks

This topic in interesting because I came across it myself. I'm an industrial electrician.

We recently bought a space heater that when we plug in dims the lights in our living room. It runs off of a 10 amps breaker, which is a little light because most circuits have about 12-15. When the light dims those appliances are "pulling" amps, and pulling more then they are going through cooling/heating stages. You can apply an Amp Meter to the wires. It has a looped clasp that wraps around the wire, and this tells you how many amps are getting pulled. Add up your appliances and you should have a breaker that is 120% MORE. You could probably not have to use an Amp Meter and look up online what those appliances typically pull in your kitchen.

Example- Say they all add up to 24 amps.
24 x 1.2 = 28.8 so you'd install a 30 amp breaker.

I would start with checking the tightness of the screw terminals on the breakers and the offending recepticles. If they are loose, which is a function of heat generated by a loose connection that gets worse over time, can result in a tripped breaker or very warm if not hot wires.

It sounds like some of your wires may not be securely fastened at the receptacles or in the circuit breaker box as someone else has suggested. You may be pulling to many amps for the circuit breakers installed as another suggested. A usual sign of this is you have abnormally high electric bills. All your major appliances have their amperage rating stamped on a plate usually the same one with the model number.
You live in an apartment I suggest you call for maintenance to check out the above listed problems.It also possible that you live near a large factory that is drawing heavy amounts of current that starves the surrounding neighborhood. Ask your neighbors if they are experiencing similar problems. If such is the case call the electric company about the problem.

Well,a usual sign of this is you have abnormally high electric bills. All your major appliances have their amperage rating stamped on a plate usually the same one with the model number.

It's a bad neutral connection.