Surge arrestors for DC photovoltaic applications

March 2012 Electrical Power & Protection

The rapidly growing PV industry has placed exceptional demands on the available SPD products intended to protect systems components such as inverters, arrays, or combiner box components from the effects of lightning-caused surges and transients.

Responding to this demand, Dehn has introduced new products specifically designed to function under this DC voltage environment. The new DEHNguard M YPV and PV-SCI incorporate a switched fused circuit in parallel to the MOV discharge circuit, permitting arc free disconnection.

Dehn has recently expanded its initial product offering to include a broader range of voltages and product configuration. These unique SPD products are now available for 150, 600, 1000, 1200 and 1500 VDC applications and configured in both a three-pole configuration for floating systems and a two-pole design for grounded systems.

For more information contact Paul van As, Surgetek, +27 (0)11 792 1303, [email protected], www.surgetek.co.za

Further reading:

Solar energy reimagined
Electrical Power & Protection
As the global energy sector races to meet net-zero commitments, utility-scale solar is undergoing a fundamental transformation. No longer defined by megawatt capacity alone, solar projects are now being evaluated on their ability to deliver dispatchable power, enhance grid stability, and provide critical ancillary services.

Read more...

---

Schneider launches new Breaker Status and Communication Module
Schneider Electric South Africa Electrical Power & Protection
Schneider Electric has launched its new Breaker Status and Communication Module Modbus SL/ULP, which delivers enhanced performance, improved connectivity and simplified integration for power distribution systems.

Read more...

---

Battery energy storage is critical to stabilise SA’s grid
Electrical Power & Protection
As the global energy transition accelerates, South Africa is quietly becoming a major player in one of the sector’s fastest-growing energy segments: battery energy storage systems.

Read more...

---

Reliable redundancy with the Mibbo
Conical Technologies Electrical Power & Protection
In industrial automation and control systems, uninterrupted power isn’t a luxury, it’s essential. The Mibbo M3DN Series Redundant Module steps in as the perfect solution when you need reliable 24 V DC power without the risk of single-point failure

Read more...

---

Rugged, industrial-Grade DIN rail
Conical Technologies Electrical Power & Protection
The Mibbo MTR960W from Conical Technologies is a high-powered, compact and reliable industrial power supply. It delivers a solid 960 watts of output power at 24 or 48?V DC, and is reliable and cost-effective.

Read more...

---

Schneider Electric’s microgrid enables optimised energy operations
Schneider Electric South Africa Electrical Power & Protection
Schneider Electric has launched its EcoStruxure Microgrid Flex product.

Read more...

---

Energy management pays off
Electrical Power & Protection
Onsite energy utilities such as boilers must be independently managed to achieve meaningful performance outcomes.

Read more...

---

Integration of power and energy management with industrial
Schneider Electric South Africa Electrical Power & Protection
Water and power management form the backbone of society and the country’s industrial landscape. With infrastructure challenges, stricter environmental regulations and the need for greater operational efficiency, water and wastewater operators need to optimise their systems. This is where the integration of power and energy management and industrial automation can alleviate some of these operational challenges.

Read more...

---

Maintenance and health of battery storage systems
Comtest Electrical Power & Protection
How to maintain batteries.

Read more...

---

Software for designing high-tech
Electrical Power & Protection
Siemens Digital Industries Software has announced that Arc Boat Company (Arc), a startup on a mission to electrify the marine industry, has adopted the Siemens Xcelerator portfolio of industry software to design and manufacture their high-performance, fully electric boats.

Read more...

---