top of page

Product Line Card

HVI small.jpg

Located in Copake, New York; High Voltage, Inc. (HVI) is the global leader in the designing and manufacturing of

Hi-Potential Test equipment -including Very Low Frequency (VLF) AC Units - used by the electric utility and large Industrial marketplace. Service and responsiveness plus experience and intellect make HVI the leader in high voltage test equipment.

  • LTC Field Service Kits.

  • Complete LTC assembly and remanufacturing services with core credit exchange.

  • NEW GE LRT-200-3 supply with core credit exchange.

  • $4mil LTC and OCB parts inventory.

  • Same-day shipment before 3 PM (CST).

KoCoS Logo 2020-11-12 030459.png

For more than 30 years, KoCoS has been designing and manufacturing Portable Measurement Equipment for substation and plant apparatus testing and maintenance.

KoCoS also offers services around the world for circuit breaker testing, relay testing, power quality monitoring services, fault recording with disturbance analysis and meter testing.


Representing 2 of ILJIN Electric Co.’s 3 business divisions: Power Cable and Power Transformers.

Since its establishment in 1973, ILJIN has led the global wheel bearing market in growth and innovation. ILJIN strives for the highest level of customer satisfaction through customer focus and a top-down quality focus based on creative innovation management. Today ILJIN is a world-class company that realizes the highest customer values.

bottom of page