Dr. Apostolov holds a MS in Electrical Engineering, a MS in Applied Mathematics and a Ph.D. from the Technical University in Sofia, Bulgaria. He worked for fourteen years in the Protection and Control Section of Energoproject Research and Design Institute, Sofia, Bulgaria. 

He is presently Principal Engineer for OMICRON is Los Angeles, CA. he is an IEEE Fellow and member of the Power Systems Relaying Committee and Substations C0 Subcommittee. he is the past Chairman of the Relay Communications Subcommittee, serves on multiple IEEE PES Working Groups and is Chairman of Working Group C9: Guide for Abnormal Frequency Load Shedding and Restoration. Dr. Apostolov is also an IEEE PES Distinguished Lecturer.

He is a member of CIGRE and works on CIGRE WG B5.07, B5.09, and B5.36. He was Convener of WG B5.13 Acceptable Functional Integration and is now Convener B5.27 Standard Protection Schemes.

Dr. Apostolov is also the Editor-in-Chief of PAC World magazine - the global forum of the protection, automation, and control industry.