The Quasar team has configured and implemented an energy management system for Argosy, one of New Zealand’s leading listed property companies. The energy management system provides energy consumption and efficiency data across Argosy's commercial property portfolio and is being rolled out across Argosy’s properties in stages with the first stage recently being handed over.
Horizon pilots network fault detection system
Kate Barker, Energy News Wed, 11 Jun 2014
Horizon Energy is testing a system for detecting and isolating faults on its network to help increase reliability.
The fault detection isolation and restoration system (FDIR) was developed by Christchurch-based firm Quasar, which supplies and integrates Survalent Technology smart grid solutions.
Horizon asset manager Derek Caudwell says implementing the technology will reduce the impact of faults on customers. It will also position the company for possible regulatory changes around network performance.
“The regulator’s indicated in the next period that quality and incentive schemes are likely to come to the fore so it’s one of a number of things we’re doing to be in a position to respond to that, improve our customer responsiveness and also reliability of the network.”
Quasar project engineer Eric Tjiptadjaja says FDIR will be able to locate and isolate a fault immediately, and then either advise restoration steps to the operator or implement the restoration automatically.
It follows the same logic as an operator but can take in more information at once and process it more quickly, Caudwell says.
Horizon’s network spans around 8,400 square-kilometres and provides electricity to more than 24,000 consumers in the eastern Bay of Plenty.
Caudwell says the firm recently ran a three-year reliability programme and installed more than 50 automated switches on parts of the network were performance historically has been poor.
Once FDIR is fully implemented it will communicate with parts of the network that have the automated switches installed and gather information from there.
Caudwell says once the system has isolated a fault, it will look at other areas to determine whether they are faulted or not and restore on that basis.
It can also read how recently other devices have communicated, how reliable the information coming in from the field is, and quickly calculate load flows to find the optimal part of the network to restore from.
“You’ve still got to respond to the actual fault,” Caudwell says, “but it means those areas that can be restored quickly are, so less people are affected by the outage.”
The system is currently being tested on about 10 per cent of the network in a monitoring capacity. The pilot began in April and will likely run for 12 months, Caudwell says.
“When it sees a fault it will go through its routine and work how it would have responded to that particular fault, but it won’t actually undertake any switching at this stage,” he says. “We’re still gaining operational experience with the system.”
The FDIR is supported by Survalent Technology's open-architecture system, which includes several of the firm's open system applications.
He would not say how much has been spent on implementing the new system as it’s still in the pilot stage.
Caudwell says technology take-up by distributors has been on the slow side compared with other industries, but that is changing.
“Process industries have been automating systems since the introduction of SCADA systems and computers.”
Implementing the FDIR system is part of a long-term plan Horizon has to better serve its consumers and take advantage of developments in technology.
Caudwell says the firm is in the process of developing an outages management system to better understand where faults occur on the network.
“Ultimately we’d like to have smart meters as part of that - telling us where customers are without supply - but because the of the nature of New Zealand’s regulatory environment and the fact that the meters are typically owned by the retailers it really requires some willpower and cooperation to make that happen.”
Horizon also recently deployed Smartrak – a system for monitoring and managing the dispatch of its staff in the field. Caudwell says the technology shows where field workers are in relation to the firm’s assets.
Transpower is the owner and operator of the New Zealand's National Grid – the high voltage transmission network of lines and substations connecting areas of generation with towns and cities across the country. To 'keep the lights on 24 hours a day 7 days a week' Transpower needs to monitor substations closely, provide control, monitor operational data, and feed this data upstream to National SCADA.
The Energy Efficiency and Conservation Authority (EECA) has recently installed a Quasar energy management system in their Wellington offices, to demonstrate the value of monitoring energy use. The system features an energy monitoring display using PowerLogic ION Enterprise software, which gathers, analyses, stores and displays all energy data in a user-friendly format.
The display provides an easy, cost-effective way of tracking energy use in the offices and saves on administrative costs as no manual meter reading is involved. It has also been tailored to allow EECA to compare energy use between its two different office floors.
Mike Underhill, Chief Executive, says the system allows EECA to identify opportunities to refine existing energy saving measures and demonstrate the potential for improving energy use in an office environment.
“The energy monitoring display has enabled EECA to identify a series of small improvements that combined add-up to a noticeable saving year on year.
The project also provides a valuable demonstration model that can be viewed by commercial building owners or tenants.”
Anyone interested in viewing the system should contact Senior Relationship Manager Mike Bourke at EECA, email firstname.lastname@example.org or phone (04) 470 2227.
PowerLogic ION Enterprise software is a complete power management solution for energy providers and industrial or commercial operations. Learn more?
Quasar Systems NZ’s leading supplier and integrator of revenue and power quality meters and metering systems to local power generators and distributors has recently been awarded a contract by Transpower New Zealand for the supply of revenue meters following an extensive evaluation programme.
Transpower has approximately 450 legacy revenue meters installed at some 152 substations throughout New Zealand. When purchased in the early 1990’s the meters were ‘state of the art’ technology but are now nearing the end of their physical life.
Contact Energy is a large, dynamic company playing a pivotal role in New Zealand’s energy sector. Generating between 25 and 30 percent of New Zealand’s electricity, the Company recently celebrated the completion of their Generation Meters Project by Quasar Systems.
The works and services undertaken for this contract relate to the replacement of obsolete metering and data recorder hardware with modern technologies, and the supply of a metering system suitable for delivering generation metering data to external metering data collection and other business applications.
Legacy meters and data loggers that had been installed in the mid 1990s were replaced at all nine Contact generation stations. The sixty new ION 8600 and ION 8800 IEC class 0.2s meters measure energy flows at the point of connection between Contact and the national grid.
Features such as transformers and line loss compensation, meter-based bus and station aggregation, and dual mastering of meters, were included. ION Enterprise software manages data collection, monitoring of real-time power conditions, report generation, and deliver metering data for down-stream applications.
“Thanks to you and your team for Quasar’s excellent input to the project;
an outstanding result and everything has settled down fine"
Murray Hill - Generation Engineer - Contact Energy
It was out with the old and in with the new recently for the HMI/SCADA at Transpower’s (TP) Islington Substation, one of their largest and most complex sites. The previous HMI system was at ‘end of life’, utilising an obsolete operating system & associated PC hardware, and posing an unacceptable risk of the loss of local control facilities at the substation. The requirement was for a replacement HMI system (both hardware & software) with almost 5000 points, communicating with the 53 C50 RTUs, used for control and indication functions as well as Reactive Power Control. Monitoring and control of the RTUs is carried out remotely from Transpower’s national SCADA and via the local HMI system.