Mining system reduces ground currents

Zero Ground announces its High Frequency Extraction System (HFES), which reduces high-frequency ground currents. The HFES solution was engineered for use wherever ac induction motors operate in conjunction with variable frequency drive (VFD) applications, and for applications where large switching power supplies are used.

06/01/2008




Zero Ground announces its High Frequency Extraction System (HFES), which reduces high-frequency ground currents. The HFES solution was engineered for use wherever ac induction motors operate in conjunction with variable frequency drive (VFD) applications, and for applications where large switching power supplies are used. It has been formally approved by the U.S. Department of Labor, Mining and Safety Health Administration (MSHA), for use in underground and surface mines in the U.S.; it has also been approved by the Bureau of Mine Safety, Commonwealth of Pennsylvania. A completely passive system, it utilizes no filters or brushes, and the design provides benefits exceeding 500 ft. lengths. HFES has been issued a ā€œPā€ number to be used in conjunction with the MSHA approval number. www.zero-ground.com Zero Ground





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me