OSLO, April 14 (Reuters) - Norwegian Air now aims to raise up to 6 billion crowns ($711 million) in fresh capital before emerging from bankruptcy protection next month, more than the 4.5 billion originally planned, the company said on Wednesday. “We want to take a conservative approach at a time when the pandemic and travel restrictions continue to create unpredictability in the travel sector,” Chief Executive Jacob Schram said in a statement.