DEHN's LifeCheck electronic tester is able to continuously monitor and control the Blitzductor CT surge arresters. It can recognise in advance a potentially hazardous overload. LifeCheck allows quick and easy SPD (surge protection device) testing without removing the module and requires no batteries or power supply. An extreme thermal or electrical load is immediately and reliably recognised and can be identified on the DEHNrecord LC (LifeCheck) reading device via non-contact RFID technology. The RFID transponders (chips) are maintenance-free and do not need a current power supply.
The DEHNrecord LC reading device communicates with LifeCheck-equipped SPD modules via RFID
The LifeCheck signalling circuit is designed to ensure that a signal is generated if there is risk of an overload condition. This allows the operator to take precautionary measures in order to avoid installation downtime.
SPD modules with LifeCheck, used in conjunction with Blitzductor CT base parts, protect two single wires with common reference potential or unbalanced lines. The devices can be applied to binary signals, analogue loops and communication interfaces, such as Profibus, RS485, RS422 and TTL.
All components in the arrester module (gas discharge tubes, diodes, varistors and resistors) are in danger of thermal overloads, therefore the control of the environmental temperature of all components is necessary. If the permitted maximum temperature is exceeded, then an overload is detected.
An antenna is integrated in the arrester module for communication. The antenna senses or detects extreme surge pulses 8/20 μs) within the arrester, and if the permitted maximum surge current is exceeded, an overload is detected.
The overload detection is designed to be activated before a defect in the protection circuit is detected. This is important for taking necessary steps at an early stage, before the loss of protection. LifeCheck does not replace fail-safe operation, but adds early detection of a potential overload, while the fail-safe mode will only occur in the case of a faulty arrester.
Power supply with scalability optimised Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric has introduced the Easy UPS 3-Phase Modular to the South African marketplace. This robust uninterruptible power supply (UPS) is designed to protect critical loads while offering third-party verified Live Swap functionality.
Read more...Prioritising arc flash safety Comtest
Electrical Power & Protection
Comtest has developed a range of thermal imaging and wireless testing tools from Fluke, designed to ensure safety is the top priority for engineers working in potentially dangerous arc flash zones.
Read more...Monitoring the voltage drop in cables Turck Banner Southern Africa
Electrical Power & Protection
With its new M12Plus connectors, Turck Banner is directly shifting the condition monitoring of cables subject to severe stress to the connection technology. The connectors, which come with voltage and current monitoring and a Bluetooth chip, enable measured voltage and current values to be sent wirelessly to a controller.
Read more...Mesh networks: a multidirectional electrical superhighway Schneider Electric South Africa
Electrical Power & Protection
Today, many power industry stakeholders are faced with mounting requirements for improved grid reliability, resilience and distribution efficiency. It’s a challenge which requires power service providers to rethink their infrastructure. Enter mesh networks, which can overcome the limitations of traditional star networks.
Read more...Versatile flexible copper busbar
Electrical Power & Protection
Referro Systems specialises in the supply and support of industrial electrical, automation and global software and hardware brands, and is now able to offer the Cubic range of Cu-Flex flexible copper busbars.
Read more...Trafo Power Solutions upgrades DRC mine transformers
Electrical Power & Protection
With its experience in Africa and its agility in executing projects rapidly, Trafo Power Solutions is supplying three mini-substations and two transformers to a copper-zinc mine in the Democratic Republic of Congo.
Read more...Acquiring locally-manufactured transformers ACTOM Electrical Machines
Electrical Power & Protection
Speed and efficiency are of the essence in the fast-evolving power generation and distribution space; but a significant challenge is the prolonged lead times associated with acquiring transformers – key components in any electrical infrastructure.
Read more...Seaward testers power PV specialists Comtest
Electrical Power & Protection
One of Asia’s leading clean energy specialists, Solarvest, uses the latest electrical safety test equipment to ensure the solar photovoltaic (PV) installations it services and maintains operate at peak performance levels.
Read more...Multi-purpose contact block
Electrical Power & Protection
The TME catalogue has been expanded to include products from Schlegel. This German, family-owned company has been specialising in the production of high-quality electromechanical components for almost 80 years.
Read more...ACTOM supplies transformer units to Kamoa Copper Mine ACTOM Electrical Machines
Electrical Power & Protection
ACTOM Distribution Transformers, recently secured an order for the supply of its neutral electromagnetic couplers, with earthing resistors, and an auxiliary transformer) to Kamoa Copper Mine in the DRC.
printer friendly version