Secondary phase inverter

A secondary phase inverter was a technological device capable of protecting the converter interface of a plasmadyne relay from failure due to excessive warp field stress.

In 2370, upon examining a plasmadyne relay aboard the USS Enterprise (NCC-1701-D) constructed by Geordi La Forge, Cadet Wesley Crusher sardonically mentioned that a secondary phase inverter would be required, despite La Forge's insistence that the relay could withstand over 500 cochranes of stress.