TIDA-010232: DC Injection Method for High Voltage Insulation Monitoring in addition to method used in TIDA - 010232

Tool/software:

Hello All,
Currently we are exploring DC Injection Method for High Voltage Isolation Monitoring, in addition to the method used in TIDA - 010232. Can someone assist us with this design or guide us to what DC Injection Method for HV Isolation monitoring refers to, or direct us to someone who could help further?
Thanks, and Regards
Nishant Kumar