Is the Svetavaraha Kalpa and the Padma Kalpa the same?
No the two are not the same and wikipedia is actually right on this point. According to this excerpt from the Vishnu Purana they are certainly different:
When the-three worlds are but one mighty ocean, Brahmá, who is one with Náráyańa, satiate with the demolition of the universe, sleeps upon his serpent-bed--contemplated, the lotus born, by the ascetic inhabitants of the Janaloka--for a night of equal duration with his day; at the close of which he creates anew. Of such days and nights is a year of Brahmá composed; and a hundred such years constitute his whole life. One Parárddha, or half his existence, has expired, terminating with the Mahá Kalpa called Pádma. The Kalpa termed Váráha is the first of the second period of Brahmá's existence.
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