Products

Electrical Industry New Product News

How to Properly Protect a BESS Power Circuit from Overcurrents

In a battery energy storage system (BESS), circuit protection becomes necessary when each of the levels--from the cells to the racks--form a combination of energy.

The advantages fuses bring to a BESS are immense. Without a need for complex wiring or additional components, fuses are a great way to protect a system simply and cost-effectively. Fuses can be easily replaced without the accumulation of additional downtime. BESS fuses’ low watt loss prevents energy loss, which efficiently minimizes wasted power from components. Their compact size makes designing high-energy density systems possible. BESS fuses have a dc-breaking capacity of up to 250 kA (or potentially more) at 1500 V dc, which enables the design of a long-duration BESS, but have a low minimum breaking capacity that offers protection for lower fault-current levels. All in all, fuses are a win for a BESS.

Circuit protection must be adequately sized to prevent catastrophic failure. The optimal circuit protection component to use depends on the

system voltage,
system nominal current,
time constant,
withstand rating of the interconnecting components,
ambient conditions, and
location of the component within the system.

This paper discusses the different fault-prone points of a BESS, and how to adequately size the fuse for optimal overcurrent protection.

Download the paper here.

For more information on how to safeguard a BESS, visit: Littelfuse.com/BESS

Filament Style LED Retrofits by Light Efficient Design

Introducing a new line of filament style LED retrofits from the brand that has been at it since the beginning. The new products mimic the appearance, size and light distribution of HID lamps. The four skus join the company's high quality post top/bollard series of retrofits.

Littelfuse Launches Its Class J Fuse Disconnect Switch to Simplify Operation and Protection

The compact Class J Fuse Disconnect Switch combines a switch and multiple fuses into a single product, offering a simpler way to manually open and close a circuit while safeguarding against overcurrent and short circuits while saving space.

Littelfuse Launches Its Most Compact Arc-Flash Relay for Tight Spaces

The AF0025 Series is a cost-effective arc-flash protection solution for OEM applications. With a depth of only 1.82” (46.23 mm), this compact relay significantly reduces arc-fault damage in AC and DC compartments by detecting the light from an arc-flash and rapidly providing a trip signal.

Voltec LED Prefab Temporary Area Lights

Voltec's new line of Prefab temporary area lights are the most customizable option when it comes to temporary lighting. These lights have a custom wiring terminal block with two 1/2 inch threaded knockouts for any 1/2 fitting allowing the user to wire the light to meet any job requirement.

New SPDN Devices Provide Equipment Protection from Transient Overvoltage Events Lasting Micro-seconds

Littelfuse NEMA-style Surge Protective Device (SPDN) series helps mitigate costly damage and downtime. It has more direct modes of protection in a small package. The external panel mount is available for sub-distribution board applications in construction, food and beverage, HVAC/R, oil and gas, light industrial and water/wastewater industries.

Free Safety Webinar: Why GFCIs with “Ground Check” are the Future of Electrical Safety

New technology blends a ground-fault circuit interrupter’s (GFCI’s) fast reaction time with proactive ground monitoring technology, which ensures a safe and reliable ground-fault path. This new pre-emptive approach originated from the special-purpose GFCI (SPGFCI) standard, but it is time to apply it to Class-A GFCIs.