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.

Tech Products, Inc. Is your source for quality identification products to the utility, pipeline and (OEM) original equipment market including, utility pole markers, valve tags, machinery data plates and safety signs for substations and transmission towers.

Our Everlast® brand is in use on many of the fiber optic cables, pipelines, and distribution systems throughout the northern and southern hemisphere. It is a unique product that does not use ink to convey its message. In fact, our first customer, Delaware Electric Coop is still using the product to mark their poles today. 

Our Fasttag miniature cable marker product line has been used by the US military on its battleships, the energy industry to identify underwater cable and pipes on offshore oil rigs and many of the fiber optic cables of the cable industry.

For nearly 50 years, SDT North America has helped the world’s most reliable companies achieve their operational objectives through better asset reliability. Our technology empowers maintenance and reliability teams to foresee failures, eliminate energy waste, and make smarter, safer decisions.

Ultrasound is often the first indicator of change in an asset’s condition. Its sensitivity to friction, impacting, and turbulence makes it one of the most versatile condition monitoring technologies available—capable of detecting subtle defects long before other methods.

At SDT, we harness this power across the 8 Pillars of Ultrasound:

• Bearing Condition Monitoring

• Precision Lubrication

• Compressed Air & Gas Leak Detection

• Steam Trap & Valve Testing

• Electrical System Inspection

• Hydraulic System Testing

• Tightness Testing

• Pump Cavitation Detection

Our portable ultrasound data collectors and acoustic imaging cameras are known for their accuracy, repeatability, and ease of use—trusted by industries across the globe to increase uptime, improve sustainability, and reduce operational risk.

Discover why SDT is known as The World’s Favorite Ultrasound Company—and how we help you bring reliability into focus.

Critter Guard designs and manufactures animal prevention products to protect substations and transformers from critter-related power outages. Many utilities have standardized using Critter Guard products for its effectiveness and proven reliability in all weather conditions.

Critter Guard BLOCKS points of entry via utility poles and power lines. With Critter Guard, critical components aren't simply covered up like the competition.

Common features of Critter Guard products include:

• No need to de-power the line for installation or substation maintenance.

• Nothing to replace or lose during service.

• Easy Installation

Critter Guard’s product line consists of: Line Guard, Pole Guard, and BirdBloc. All of these systems are defined by one characteristic — No Access.

We rent and support electrical testing equipment. We have more resources, more capability, and more inventory to serve the electrical testing and power industries. Our passion to the industry is unwavering. We pride ourselves on customer service and technical expertise on the equipment we rent. 

We carefully select the right equipment for your rental, prepare it in real-world conditions, complete for the application. It’s field ready.

Testing needs support; the apparatus, the test equipment, the technician, and the job. It’s all we do. 

We make the connection between logistics and the job, wherever it is. Putting a label on a box isn’t enough. We proactively monitor the shipment, adapt, and ensure delivery commitment. 

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.

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.

For decades, our team has distributed most of the leading manufactures equipment in the powerline industry. We have also built and designed some of the most durable, reliable, and trusted tools and equipment in the electrical utility industry. We always go the extra mile to provide not only some of the best customer service but to create some of the most well-tested products possible. We have invested heavily in advanced technology to ensure that every product we produce is second to none. We proudly offer repair services for a wide array of electrical utility tools and equipment, including warranty repairs for many of the most common brands in the industry. We also house some of the most expansive technical testing services for our products including an in-house rubber goods testing lab, ground testing, and hot stick testing.