T&D Buyer's Guide

High Voltage, Inc. designs and manufactures industry-leading high voltage test equipment for proof testing, diagnostic testing,  high voltage breakdown testing, and preventative maintenance testing. Trusted for the most technically-advanced, portable, and user-friendly high voltage equipment on the market. HVI test sets are used worldwide by utilities, testing service companies, electrical contractors, large industrial factories, and electrical apparatus OEMs.

HVI has been an essential supplier of electrical testers and test kits for over 20 years. Our familiarity with the regulations and procedures inherent to this industry make us more than a supplier or manufacturer, but a partner. Customers turn to HVI for its high-quality testing equipment, unparalleled customer support, and its commitment to sharing deep industry knowledge in an approachable, helpful way.

By working closely with technicians and professionals like you, we have been able to consistently innovate new technologies and solve real world problems with custom solutions. For the industry standard in high voltage testing equipment, you can rely on HVI.

Founded by Fouad Brikci, Ph.D., Zensol specializes mainly in instruments targeted at the electrical energy industry and maintenance services. 

Zensol has become the pioneer in a new testing method to detect problems in on line tap changers, circuit breakers and reclosers. We have the knowledge to use this innovative technology while the transformers and circuit breakers are on line. 

Designer by our engineers, they are portable and suitable for harsh environments (extreme temperatures from -40°C to +60°C). They are known for their sturdiness and their performance and a life expectancy of 15 years and more. 

Doble Engineering Company is a global leader in diagnostic test equipment, software and engineering services for the electric power industry. Founded in 1920, it helps utilities and energy asset owners improve reliability, assess system health, and optimize operations through advanced diagnostics and expertise worldwide.

Safety focused manufacturer of heavy duty switch-rated plugs and receptacles and other connectors ranging from 15- 600 amps. Meltric products eliminate safety concerns associated with traditional pin & sleeve and twist type devices. The Decontactor™ Series plugs and receptacles feature dead front construction, silver-nickel butt style pressure contacts and ingress protection up to NEMA 4X and IP 66/67. Products are UL and CSA approved to make and break under load and have a 10kAIC short circuit rating. Products can be pre-wired, assembled as cord-sets, mounted on panel boxes or in custom fabrications.

SISCO provides real-time communications and integration solutions to electric energy industry customers. We specialize in IEC 61850, CIM, COMTRADE, C-RAS for wide-area protection, and GOOSE monitoring tools to manage the complexity of electric power systems while building a flexible Smart Grid integration architecture that is robust and scalable. Products include source code, off-the-shelf interfaces, remedial action systems, and special protection systems. Services include consulting, systems integration, application development, training, support, and maintenance.

Did you know 1 out of every 200 transformers experiences failure each year? The safety and cost risks of an unexpected failure can be catastrophic. Dynamic Ratings products and services provide real-time data to help you make smart asset management decisions. Online monitors give you the confidence to extend the life of existing assets using real-time data. Monitors evaluate the equipment in your substation (transformers, circuit breakers, switchgear, and more) and measure their performance to make sure everything is working properly. If something looks out of place, an alarm will notify you of the problem. This information allows utilities to optimize maintenance plans and the performance of their assets to changing system requirements. Learn how we can help at www.dynamicratings.com.