The two South Wales sides meet for the first time in the Premier League this weekend, with many of their players yet to play in the derby.
Rangel is looking forward to the game and claims it will be the biggest ever between the sides.
"I think it's going to be a loud game, really intense and a lot of emotions around," he told FourFourTwo.
"They [the other players] know it's always a crazy one but they haven't experienced it here yet.
"There is an extra spice in it and it's going to be really exciting - probably the biggest ever - and the most important thing is to win it."
Swansea travel to Cardiff at 4pm on Sunday afternoon.