HD-Pro™ Application Notes
Avoiding electrical accidents and equipment damage are keys to reducing liability and increasing productivity. Minimum ground fault, GFCI, protection can be incorporated into the main power disconnect device and could be considered adequate for the entire system. However, in such a design, any downstream ground fault could trip the main protective device resulting in a complete substation power outage. The NEC's purpose, in its own words, is "the practical safeguarding of persons and property…but not necessarily efficient, convenient, or …for good service…" (Article 90.1A, B). In other words, system reliability is left to common sense and good engineering design practices. For this reason ground fault, GFCI, protection of the circuit may be highly desirable and recommended for reliable and continuous operation.
TRC engineers designed the HD-PRO models specifically for high current, rugged environments and these models are field-proven in all kinds of tough applications. The entire HD-PRO family (120V/30A to 600V/100A) is designed to trip within 25 milliseconds after ground fault detection at an adjustable selected trip level of 6, 10 or 30 mA or 10.30.50 mA..
Disclaimer: Information contained in these publications regarding device applications and the like is intended as suggestion only and may be superseded by updates. It is your responsiblity to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by TRC with respect to the accuracy or use of property rights arising from such use or otherwise.
For electrical safety guidelines and how to avoid electrical shock in certain applications, please download the following Application Notes:
Arc Welding
Arc Welding is described as using a welding power supply
to create an electric arc between an electrode and the base
material to melt the metals at the welding point. Find out why and
how you should always use a local ground fault circuit interrupter
(GFCI) when operating arc welding equipment. High power equipment
and welders can be protected from hazardous ground faults with
HD-PRO.
Arc Welding
Application Notes PDF
Assembly
Equipment
Assembly Equipment provides automation in the production
process. Automated assembly equipment includes insertion, brazing
and soldering, clinching and stitch folding, eyeleting, injected
metal (IMA), riveting, screw driving and welding, just to name a
few. Find out why and how you should always use a local ground
fault circuit interrupter (GFCI) when working with or operating
assembly equipment.
Assembly Equipment Application Notes PDF
Conveyors
Conveyors are commonly found in factories, industrial facilities,
warehouses, distribution centers and in a large number of
manufacturing workplaces. Find out why and how you should always
use a local ground fault circuit interrupter (GFCI) when working
with or operating a conveyor power system.
Conveyors Application Notes PDF
Hoists
Hoists are one of the top productivity enhancing tools found
almost anywhere goods are regularly moved, worked on and/or mounted
into an assembly. Find out why and how you should always use a
local ground fault circuit interrupter (GFCI) when operating a
hoist power system.
Hoists Application Notes PDF
Pressure Washers
Pressure Washers are powerful tools used for washing buildings,
bricks, floors, storefronts, parking lots, dumpsters, bus fleets,
machinery, farm equipment, engines and more. Find out why and how
you should always use a local ground fault circuit interrupter
(GFCI) when operating a high pressure sprayer washer. Industrial
pressure washers can be protected from hazardous ground faults with
HD-PRO.
Pressure
Washers Application Notes PDF
Tile and Concrete Cutters
Tile, concrete and other wet saws are key pieces of machinery used
every day by cutters that need portable saws on all installations
requiring a custom cut for a perfect fit. Find out why and how you
should always use a local ground fault circuit interrupter (GFCI)
when operating wet saws.
Tile & Concrete Cutters Application Notes
PDF
Nuclear Power Plants
HD-Pro provides ground fault solutions for nuclear power plants to
enchance their safety program, ensure employee safety, reduce risk
and liability and adapt to changing OSHA requirements. HD-Pro
models are designed specifically for high current, rugged
environments and are field-proven in all kind of tough
applications.
Nuclear Power Plant Application Notes PDF
Temporary Power Distribution
Ground fault circuit interrupters (GFCIs) should be the first consideration in protecting personnel and equipment from electrical failure. Equipment Leakage Current Interrupters (ELCIs) are similar to GFCIs, only have a higher leakage current level and are designed to protect equipment. As temporary power distribution devices are connected and removed, cords and connection devices become worn and portable equipment is subjected to abrasion, vibration, and impact. All of this leads to the potential for ground faults.