From Littelfuse, Inc.

Ground faults can be dangerous. A short to ground in a
solidly-grounded system creates large currents that can
damage equipment and cause a shutdown. A ground fault
can also create an arc flash, which can cause serious injury
to nearby personnel as well as damage to equipment.

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Products & Services
Circuit Protection Devices
Circuit protection devices are used to protect electronic components from unwanted transients such as current and voltage surges, electrostatic discharge (ESD), lightning, spikes and other signals that can imperil the operation or damage the component.
Metal Oxide Varistors (MOVs)
Metal oxide varistors (MOV) are semiconductors that protect electronic components and systems from transient voltages.
Electrostatic Discharge (ESD) Suppressors
ESD suppressors are semiconductors that protect electronic components and systems from electrostatic discharge (ESD).
Transient Voltage Suppressor Diodes (TVS)
Transient voltage suppressor (TVS) diodes are designed to limit over-voltages. They can dissipate high amounts of transient power in a short period of time.

Product Announcements
ABB Low Voltage Products & Systems - The Next Level of Arc Flash Protection
ABB's new TVOC-2 Arc Guard System protects equipment and personnel from dangerous arcs, and prolongs the life-cycle of equipment. The Arc Guard System is a safety device that detects faults in low and... (read more)
Littelfuse, Inc. - Prevent Catastrophic Damage from Arc Flash
Reduce Wind Turbine Downtime and Prevent Catastrophic Damage from Arc Flash This presentation will focus on the key considerations for wind turbine designers and engineers in selecting, designing, and... (read more)

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4.1 Introduction In Chapter 2 we have briefly covered that the phase-to-ground faults in a system can limit the ground fault current depending on adding external impedance between neutral and the...

A rise in arc-flash-related injuries leads to new regulations and designs to safeguard personnel. Arc flash is defined as an explosive release of energy caused by an electrical arc. Typically, the arc...