T&D Buyer's Guide

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.

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.

Tallman Equipment is an employee-owned company and has served the electrical transmission and distribution industry for over 70 years. We offer a comprehensive range of services to linemen, including new tool sales, rentals, ground and jumper set manufacturing, transformer sling production, and expert testing and repair.  

Tallman carries a wide selection of the best tools and equipment from the top brands in the utility industry.  

Our rental inventory includes stringing blocks, ground and jumper sets, battery powered cutting and crimping tools, fiberglass hot arms, hoists, dynamometers, rubber goods, and more.  

The Tallman Assembly Department custom-builds ground and jumper sets as well as performing dielectric testing and repair on used grounds and jumpers.  

Our rope department specializes in transformer sling assemblies as well as rope splicing and custom rope solutions.  

Our repair department services all tools commonly used in the utility industry including hydraulic, pneumatic, gas, and battery-powered equipment, stringing blocks, dynamometers, and mechanical hoists. 

Tallman offers complete repair and reconditioning of fiberglass tools, including hot sticks, conductor and support gins, ladders, extension arms, shotgun sticks, and more.  

The Tallman Rubber Lab cleans and performs dielectric testing on rubber gloves, blankets, sleeves, and other rubber goods and cover-up. All testing is done in accordance to ASTM standards.  

At Tallman Equipment, our vision is to deliver quality, convenience, and reliability to our customers by adapting to their needs and always striving to do the right thing.

Evluma is committed to developing affordable, long-lasting and environmentally low-impact LED lighting solutions that fundamentally change the landscape of the outdoor utility lighting market. Evluma’s high standard of customer service plus its background in innovative lighting technologies and software cooperatively influence the design of its utility-grade products. Evluma has added a family of roadway luminaires to its product line. Available in three sizes, the RX1 (small) is the winner of a BrightStar award.

Evluma manufactures LED lighting products that assist universities, utilities and municipalities replace and retrofit existing HID fixtures. The OmniMax LED replacement lamp is the ‘Perfect Fit’ for decorative post top lighting. Evluma's AreaMax is “The Utility Standard” for street and area lighting. All Evluma products operate with ConnectLED Bluetooth controls. Now offering a full line of globes for post top fixtures!

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.

Our Mission

To ensure that all people globally have reliable, safe and secure energy in a sustainable world.

About Us

Founded in 1920, Doble Engineering Company ensures reliable, safe and secure power for all. We do this by providing comprehensive diagnostics and engineering expertise for the energy industry.

Doble is part of the Utility Solutions Group of ESCO Technologies Inc. (NYSE: ESE) and serves customers around the globe. Doble is an ISO 9001 & ISO/IEC 17025 & 17034 certified company.