July 2004Electrical Power & Protection
Security Services & Risk Management
The Omniflex Powerterm Power Supply Series features an instrument power supply with integral battery charger. Fitted into a DIN rail mounted housing solution, the combined power supply and charger offers a number of useful features.
The devices are well suited to mining applications where remote instruments are used for metering and control, and there are periodic power outages. The Powerterm charger series provides the appropriate backup, improving plant availability at significant cost savings.
Tuned for sealed lead acid batteries with temperature compensation
Featuring a charger tuned for sealed lead acid batteries, a temperature compensated charging rate that uses a temperature sensor strapped to the battery for feedback to the charger, protecting the battery during high ambient temperature conditions.
Battery testing facility
Batteries need to be checked regularly to ensure that they are in good order. The device provides facilities to allow the batteries to be tested in location. A charger shutdown input is provided. On activating this input, the charger is disconnected, allowing the battery voltage under load to be measured. This time saving and convenient facility makes maintenance checking a pleasure.
AC mains fail relay and load cutout facility
The power supply also provides an AC mains fail detected output. Batteries are capable of delivering enormous currents under system fault conditions that can damage wiring and equipment. The power supply incorporates an auto-resettable load cutout, which disconnects the load under over-current fault condition. During prolonged power outages, the back-up battery will eventually discharge. If the load remains connected, the battery enters its 'deep' discharge phase, which can cause irreparable damage to the battery, and reduce its capacity and life.
Under-voltage cut-out
An under-voltage cutout disconnects the load when the battery voltage begins to fall and an independent charge current control circuit prevents overcharging of the battery, even on no load. This has the added benefit of allowing the Powerterm Charger Series to deliver maximum rated load even when the battery is discharged and undergoing rapid charging. The maximum float voltage necessary to ensure full charge, but not overcharge, is temperature dependent. If the battery is installed in an environment with widely fluctuating temperature, then use of the external temperature probe is recommended.
Features of this product include:
* Instrument quality power supply with integral charger.
* Size the battery to suit the application backup time.
* Designed to prolong battery life.
* Integral diagnostic warnings.
* Temperature compensated charging in harsh ambient environments.
* Compact DIN rail mounting.
* Range of options 110 or 220 V a.c. mains input, 2 A, 5 A, 12 or 24 V system output.
Navigating solar energy adoption
Electrical Power & Protection
Although South Africa’s enhanced solar tax rebate has ended, solar and energy storage solutions remain accessible and achievable. By taking a proactive and strategic approach, businesses can successfully lower their operational costs, mitigate power outages, and secure long-term energy independence.
Read more...Omniflex through the decades Omniflex Remote Monitoring Specialists
News
As Omniflex celebrates 60 years of engineering excellence, we take a look back at the decade that saw us really kick in and deliver major engineering projects – the 1970s.
Read more...Portable appliance tester Vepac Electronics
Electrical Power & Protection
The new appliance tester from Vepac is the ideal tool for testing the safety of electrical appliances in accordance with DGUV regulation 3 and BetrSichV. It enables the precise measurement of protective conductor or touch current using the equivalent leakage current method.
Read more...Is sustainability enough any more?
Electrical Power & Protection
With the planet’s resources stretched to the brink and no signs of improvement, it is time we look beyond sustainability and explore regenerative thinking and design.
Read more...Remote monitoring in remote and harsh environments Omniflex Remote Monitoring Specialists
Industrial Wireless
For power grids, water supply networks and many industrial facilities, managing infrastructure in remote locations is a significant challenge. Omniflex discusses the requirements for remote monitoring equipment deployed in remote and harsh environments, and shares an example from the company’s work with a South African electricity supply company.
Read more...A simple guide to understanding the importance of IP ratings
Electrical Power & Protection
When selecting electrical products for industrial, commercial or even domestic use, it is crucial to consider how well they can withstand environmental factors like dust and water. This is where ingress protection (IP) ratings come into play.
Read more...Plant to control room visibility Omniflex Remote Monitoring Specialists
Industrial Wireless
When Sasol’s Secunda power plant in South Africa was looking for ways to improve productivity and maintenance responsiveness, it approached remote monitoring experts, Omniflex for real-time monitoring of its electrostatic precipitators across 17 substations.
Read more...A milestone in electrical safety ABB South Africa
Electrical Power & Protection
Celebrating a milestone in electrical safety, ABB proudly marks the 100-year anniversary of its revolutionary Miniature Circuit Breaker.
Read more...The power of water
Editor's Choice Electrical Power & Protection
The Alpenglow Hy4 is the world’s first water-based hydrogen combustion engine, offering a convincing alternative to traditional battery-electric vehicles and established hydrogen fuel cell designs.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version