Current and voltage sensing contactors
July 2017
Electrical Power & Protection
Gigavac has released a new range of current and voltage sensing contactors. These can help reduce the number of components in monitoring and control systems by integrating the sensing controls within the actual contactors. The range includes:
• 350 A and 600 A contactors with over-current sensing and automatic trip function. Trip current is settable via an external programming resistor.
• 350 A and 600 A contactors with current sensing outputs. Current is proportional to voltage output of 0-5 or 0-10 V.
• 350 A and 600 A contactors with low voltage disconnect and auto-disconnect function, optimised for vehicles with dual battery 12 V/24 V systems.
The Gigavac Epic extended performance impervious ceramic (EPIC) sealed AC/DC contactors can be used in harsh environments, under water and at temperatures from -55 to 85°C, and can be mounted in any position. Also called a relay or solenoid, they are the preferred contactor for heavy trucks and equipment, buses, emergency vehicles, electric vehicles, hybrid vehicles, boats, light rail, mining, oil refineries, construction equipment, military vehicles, power management systems for battery charging, fuel cells, battery backup, solar, wind and wave power systems and factory automation where long life and high reliability are needed.
Further reading:
Compact, high density power protection system for AI, data centre and large-scale electrical workloads
Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric has launched its new Galaxy VXL – a highly efficient, compact, modular, scalable and redundant 500-1250 kW (400 V) 3-phase uninterruptible power supply (UPS), complete with enhanced cybersecurity, software and safety features.
Read more...
Taking the pain out of panel building
Omron Electronics
Electrical Power & Protection
Panel building stands as a cornerstone of industrial automation, shaping the efficiency and reliability of automated systems across different and diverse industries, from manufacturing to infrastructure. Omron leverages over 80 years of experience to furnish OEMs and builders with cutting-edge control panel solutions.
Read more...
Powerless is not an option
Electrical Power & Protection
When the power goes out it is important for commercial and tertiary facilities to be able to keep essential electrical equipment running. UPS systems are critical for transitioning and emergency backup power.
Read more...
High-performance surface inspection systems for battery production
Electrical Power & Protection
As battery manufacturers increase their focus on yield optimisation to meet growing demand, AMETEK Surface Vision is highlighting the essential role of processes to improve quality and reduce defects.
Read more...
Securing the power supply
Electrical Power & Protection
Grid management systems are the linchpin of modern transmission and distribution networks. To understand the intricacies of grid management, it is necessary to unpack its core components: scada systems, energy management systems, outage management systems and wide area management systems.
Read more...
Powering sustainable mining operations in Africa
Electrical Power & Protection
Africa’s mining sector is at a crossroads and, as the industry grapples with mounting pressure to drive operational efficiency within the boundaries of sustainability, natural gas is emerging as a compelling solution.
Read more...
Multimeters: the perfect entry-level choice
Comtest
Electrical Power & Protection
Experience the precision, durability and safety of professional-grade test tools with the entry level Fluke 15B+ and 17B+ digital multimeters.
Read more...
ABB technology powers three substations in Uganda
ABB South Africa
Electrical Power & Protection
ABB delivered solutions for three substations run by Uganda’s leading utility, Umeme Limited, which manages and operates the state-owned leased electricity distribution network assets.
Read more...
A snapshot of South Africa’s electricity market over the next six years
Electrical Power & Protection
At the beginning of the year, the Electricity Regulation Amendment Act came into effect, promising to facilitate “an open market platform that allows for competitive electricity trading.” This article focuses on providing a roadmap for the competitive, multi-market electricity trading platform that the ERAA intends to establish.
Read more...
Empowering businesses to prosper as prosumers
Schneider Electric South Africa
Electrical Power & Protection
As more businesses adopt renewable energy solutions like rooftop solar and energy storage they become prosumers – both consumers and producers of energy – a trend that presents organisations with a significant opportunity to engage in the bi-directional flow of energy through distributed energy resources.
Read more...
printer friendly version