Surge protection block
October 2008
Electrical Power & Protection
DEHNrapid from DEHN is a combined lightning current and surge arrester that is directly pluggable into disconnection blocks based on the standard LSA insulation displacement connection system, allowing easy integration within enclosures. The integrated LSA disconnection function in the unit's 10-pair plug-in protection block allow for protected testing, disconnecting or patching within the system or the additional attachment of single-pair surge arresters.
The 10-pair plug-in surge-protection block incorporates gas discharge tubes and optional visual fault indications as well as the disconnection block contacts. The surge arresters snap into the earthing frame and can be removed as a block, whenever required.
A fail-safe function short-circuits the lines to earth in order to protect the gas discharge tube from a possible burn-off due to over-currents. In the event of an over-current, the disconnecting solder between the spring and the surge-protection device melts, the leads are short-circuited and the temperature-sensitive colour on the spring changes from light pink to dark purple and requests the user to replace the surge protection device.
A measuring or disconnection adaptor can be plugged into the device in the same way as a disconnection block to ensure protection during maintenance.
For more information contact Paul van As, Surgetek, +27 (0)11 792 1303, [email protected], www.surgetek.co.za
Further reading:
Hitachi Energy’s power quality solution
Electrical Power & Protection
Hitachi Energy has announced the deployment of its power quality solution to connect Tanzania’s leading gold producer, Geita Gold Mine (GGML) securely to the national grid.
Read more...
Rail electrification and EV solutions for integrated transport systems
Electrical Power & Protection
A comprehensive range of solutions for rail electrification and electric vehicles is available from leading technology provider ABB, contributing significantly to integrated and sustainable transport systems.
Read more...
PPS delivers containerised distribution board for Western Cape hybrid power project
Electrical Power & Protection
South African electrical enclosure specialist Power Process Systems has successfully completed the design, fabrication and commissioning of a 4000 A containerised distribution board for a wind/PV solar hybrid renewable energy project on a site in the Western Cape.
Read more...
The choice of a thermal carrier is critical for optimal processing
Electrical Power & Protection
Historically steam, fuelled by coal, has been the most prevalent thermal carrier in South African industry. However, times are changing, with the manufacturing and processing sector needing to review the energy reticulation systems and thermal carriers currently in use.
Read more...
ABB’s blueprint for a net zero future
Electrical Power & Protection
ABB’s Mission to Zero is a strategic initiative aimed at achieving a sustainable future characterised by zero emissions, zero accidents and zero waste.
Read more...
How South Africa’s transformer manufacturing industry can fill a gaping infrastructure gap
ACTOM Electrical Machines
Electrical Power & Protection
South Africa’s energy transition is accelerating the demand for power transformers. However, this shift toward renewable energy is exposing a critical infrastructure gap: a severe shortage of transformers.
Read more...
General-purpose 350 W AC-DC power supply
Electrical Power & Protection
The TDK-Lambda GUS350 series of compact single-output general-purpose power supplies addresses the need for an economically priced product while maintaining reliability and quality.
Read more...
Ground-breaking battery tester
Comtest
Electrical Power & Protection
Midtronics offers the proven MVT handheld battery tester. This revolutionary tool, powered by MDX-AI, is set to redefine the standards of battery diagnostics and testing in the automotive industry.
Read more...
Green hydrogen could be the missing link in powering the future of technology
Electrical Power & Protection
Green hydrogen has numerous applications across multiple industries. It also has the potential to provide a clean energy source to power future technology, with far-reaching implications for both industry and society.
Read more...
Energy audits pave the pathway to sustainability and savings
Schneider Electric South Africa
Electrical Power & Protection
Energy audits serve as essential tools for businesses looking to reduce costs and meet environmental targets. By analysing energy consumption across systems such as lighting, HVAC, ICT and water infrastructure, audits identify inefficiencies and quantify carbon footprints, enabling data-driven decisions for operational and financial optimisation.
Read more...
printer friendly version