The director may apply to the court for an order appointing him as receiver or ancillary receiver, and directing him to conserve the assets within this state, of any alien insurer upon any of the following grounds:
1. Upon any of the grounds specified in sections 20-615 or 20-616.
2. Upon the ground that the insurer has failed to comply, within the time designated by the director, with an order made by him to make good an impairment of its trusteed funds.
3. Upon the ground that the property of the insurer has been sequestrated in its domiciliary sovereignty or elsewhere.