My fridge keeps tripping the power

Your solution is one of two things.

First is the circuit you have plugged the refrigerator is either over its limit and the breaker is tripping because it is overloaded. In this case you will have to determine what load also share this circuit and eliminate the extra loads or move the cord to another circuit which is not overloaded. Most home circuit are wired with 14 gauge and is rated at 15 amps. When the circuit gets to 15 amp and more, the associated breaker trips to prevent overload.

Second, Your refrigerator may have a short and needs troubleshooting to find the cause. To see if it is a bad circuit try plugging into a circuit via extension cord to circuit in another room receptical. The reason I say another room, when electrical installers wire circuits, you can put several recepticles on the same circuit. If you plug your refrigerator in the same circuit you had it on before then you will get the same problem, your refrigerator tripping again. If your frig trips on a different circuit then troubleshooting the cause will normally require a tech.

Good luck and hope this helps.