Welcome to ZEMAR INC
Voltage regulator training &
test equipment


About Us


ZEMAR INC voltage regulator training. Hands on. ZEMAR INC voltage regulator testers. To make sure regulator is on neutral before energizing. Also will detect open source, load or source load leads. Started in the electrical business in 1969. Formed ZEMAR INC in 1979. Sold all assets in November 2008, but maintained the corporate name to build test equipment and teach school. Have worked all over the world teaching, trouble shooting and repairing regulators as well as reclosers.  My goal has always been, to be available to my customers 24/7. You need help 2:00 AM do not hesitate to call me. The only people that knows you called are you and myself.  Voltage regulators are the most dangerous piece of equipment on your system, so please call if you need help, no charge for this service.


Voltage regulator training, your site or ours.


Joe Robb has over 48 years experience.


Contact Us

Drop us a line!


5209 N SR 60 N

McConnelsvlle OH 43756


Products & Services

Regulator Training

Training your site or ours.

Neutral Tester

Determine if regulator is on neutral before energizing.

Internal Capacitor Tester

Will test internal capacitor and run regulator back to neutral.