Power distribution for the digital age.

01/06/2017
Éirin Madden, Offer Manager at Schneider Electric Ireland talks about the smart devices that enable facility managers to take preventive measures to mitigate potential risks in power distribution.

Éirinn Madden

We are currently witnessing the rise of a new chapter in power distribution. After all, today’s digital age is going to impact our lives and business as much as the introduction of electricity did at the end of the 19th century. This is going to bring with it a wave of innovations in power that will blur the lines between the energy and digital space. The traditional centralised model is giving way to new economic models and opportunities, which redefine the core basics of power distribution; efficiency, reliability, safety, security, and performance.

Many of us know the inconvenience of experiencing a blackout at home, but the impact is much more far reaching when it occurs in your corporate facility – from lost revenue and unhappy tenants, to more extreme scenarios like the loss of life. Recently, tourists and shoppers in central London were plunged into darkness after an underground electric cable faulted on a high voltage network caused an area-wide power cut. Theatre shows were cancelled and shops were closed, leaving shoppers and storeowners frustrated and disappointed.

A call to get smart 
How can such outages be prevented? At the core of smart power distribution systems are smart devices that enable facility managers to take preventive measures to mitigate potential risks. These devices have become more than just responsible for controlling a single mechanism. They now measure and collect data, and provide control functions. Furthermore, they enable facility and maintenance personnel to access the power distribution network. 

In many places throughout the power network the existing intelligence can be embedded inside other equipment, such as the smart trip units of circuit breakers. These smart breakers can provide power and energy data, as well as information on their performance, including breaker status, contact wear, alerts, and alarms. In addition to core protection functions, many devices are also capable of autonomous and coordinated control, without any need for user intervention.

Today, hardware such as the Masterpact MTZ Air Circuit Breaker (ACB) has evolved to include new digital capabilities. One of these primary new digital technologies revolves around communication abilities, providing a way to send the data the device is gathering to building analytic software, where it can be put to use.

Building analytics is another enabler for smart power distribution systems, offering an advanced lifecycle managed service that delivers automated fault detection, diagnosis, and real-time performance monitoring for buildings. Information is captured from building systems and sent to cloud-based data storage. From that point, an advanced analytics engine uses artificial intelligence to process building data and continuously diagnose facility performance by identifying equipment and system faults, sequence of operation improvements, system trends, and energy usage. 

Combatting operational efficiency decline
One of the biggest challenges facing facility managers today is the need to maintain existing equipment performance. Components are prone to breaking or falling out of calibration, and general wear and tear often results in a marked decline of a buildings’ operational efficiency. What’s more, reduced budgets are forcing building owners to manage building systems with fewer resources. The issue is then further exacerbated by older systems becoming inefficient over time. Even when there is budget at hand, it is time-consuming and increasingly difficult to attract, develop, and retain staff with the right skills and knowledge to make sense of the building data being generated. 

When it comes to switchgear in particular, there is the challenge around spending when it comes to maintenance and services. There is no doubt that regularly scheduled maintenance extends the life of existing switchgear. However, at some point facilities must decide whether to maintain or replace with new equipment. Of course, although keeping up with equipment maintenance has its challenges, especially with limited resources, the safety and reliability of a facility depends on it and must be the priority. 

Looking ahead with building analytics
For many building owners and occupants, they are also looking at how building analytics can be used beyond just safety and reliability to make a difference to the bigger picture of workplace efficiency. From comfort to space, and occupant services, to management dashboards, organisations are now placing more emphasis on well-being at work. When building analytics recommendations are implemented, the results are obvious – enhanced building performance, optimised energy efficiency through continual commissioning, and reduced operating costs — all with a strong return on investment and an improved building environment.

@SchneiderElec #Power #PAuto @tomalexmcmahon

Switches in critical control networks in petrochem plant!

03/10/2016

unipetrol_rpa_plant_01

Unipetrol is a major refinery and petrochemical company in the Czech Republic. One of the company’s biggest assets is the industrial premises Chempark Záluží which is the largest chemical production facility in the country. The facility is currently the seat of several dozens of important chemical and service companies and is a daily workplace for 6,500 employees from 180 companies.

The part of the plant where Ethylene is produced is particularly important since it is widely used as a component in many other products produced at the plant. A stoppage in the Ethylene production would have enormous economic implications because it would affect the overall production. A complete new network backbone for power control and distribution as well as an upgraded network backbone for the emergency shutdown system has been built with Westermo switches to support the applications in the Ethylene unit.

The communication infrastructure and the systems has been built and implemented by Inelsev, a Czech company that provides services for industrial automation and energetic systems. The decision to use Westermo devices was based on a strong working relationship between Inelsev and Westermo’s Czech distributor.

Pavel Ješina with one of the Westermo RedFox switches.

Pavel Ješina with one of the Westermo RedFox switches.

“This is a plant where reliability is absolutely crucial. The systems are designed to be extremely robust in order to guarantee continuous operation and to protect the plant and the people who work here. In the previous network solution, we used another switch brand that we had to replace. The main reason for that was the network ring recovery time. Whenever the network had to recover, it took so long that connected equipment (OPC servers) would not start up and connect properly. WeOS powered Westermo products, including the ring network protocol FRNT with 20 ms recovery time, was a perfect fit. Extremely fast, robust and easy to use,” said Pavel Ješina, R&D manager at Inelsev, who has designed and implemented both networks.

The two networks were built in 2011. The emergency shutdown system was an upgrade project where old switches from another brand were replaced with Westermo Lynx switches in a dual ring network topology. The purpose of this network is to shut down the plant in an emergency situation. The power control and distribution network was built as a completely new system and connects 30 substations throughout the plant with a central control room. The network consists of 270 communication devices, over 500 process screens and panels, 13,000 I/O connections and more than 300,000 alarms. The network consists mainly of Lynx L210-F2G and a variety of RedFox industrial switches.

The many combinations of ports and the possibility to mix copper and fibre media was another big driver for selecting Westermo products. “Inside a building we can use regular copper Ethernet cables, but the cables connecting the different buildings must be fibre due to safety legislations,” explained Pavel. “The many models and port combinations in the RedFox Industrial range allowed us to select the ideal product at every location and to prepare for expanding the network in the future.”

Another positive outcome from using Westermo devices is that configuration and maintenance is extremely simple. All managed Westermo devices are powered by the same operating system, WeOS. This means that you will get an identical experience whether you configure a Lynx, RedFox or any other managed Westermo device, regardless of model. It also means that any new functionality added to any new WeOS version will be backwards compatible and available in any previously installed WeOS device. The operating system is designed to be as robust as the hardware. It is made to be simple to use and configure and thoroughly tested in the Westermo software test lab. “I have worked with many different brands of switches and routers, and compared to many others, configuring a Westermo switch is like kindergarten,” said Pavel.

To make configuration and maintenance even simpler, the company also provides WeConfig, a “Made Easy” network configuration management tool designed to simplify both the initial configuration and network commissioning which can be performed much quicker than before and over the lifetime of a network hundreds of man hours can be saved. “I use WeConfig for upgrading the Westermo devices when a new firmware upgrade is made available. The tool makes upgrades simple and hassle free and I can access all units from one central point and automated updates are performed swiftly and securely. I am excited to start experimenting more with WeConfig when we expand our network.

“We have created a straightforward, robust and reliable network solution. This is exactly what is needed here and the Westermo units have been working flawlessly since they were installed. The products are easy to use and I would not hesitate to select Westermo products for another application where the same type of requirements are needed,” he concluded.

 @westermo_global #CzechR #PAuto

Changing industry standards for OEMs Enginers & contractors: one year on!

04/10/2015

In 1998, Google was founded, the first Apple iMac was introduced and the legendary Windows ’98 was released by Microsoft. In a less glamorous but equally important corner of industry, a new commission was being formed to revise the complex IEC 60439 industry standard, which governed the safety and performance of electrical switchgear assemblies. Although Windows ‘98 has long been consigned to history, the new industry standard – BS EN 61439 – only became mandatory on November 1, 2014.

One year on, Pat McLaughlin, Boulting Technology’s Operations Director, evaluates how original equipment manufacturers, panel builders, electrical engineers, consulting engineers and contractors have been affected by the new BS EN 61439 standard.

Boulting_BS_EN_61439

Why a new standard?
In a market where the demand to optimise and reduce costs blends heavily with higher needs for assembly flexibility, the introduction of a new set of standards was needed to guarantee the performance of Low Voltage Switchgear Assemblies.

Switchgear and Control Gear assemblies are multifaceted and have an endless number of component combinations. Before the introduction of the new standard, testing every conceivable variant was not only time consuming and costly, but impractical.

The intricate character of assemblies also meant that many did not fit into the previous two testing categories: Type Tested Assembly (TTA) and Partially Tested Assembly (PTTA). For example, panels which were too small to be covered by TTA and PTTA fell outside the standard. Finally, in the case of a PTTA, ensuring the safety and suitability of a design was often dependent strictly on the expertise and integrity of the manufacturer.

Design verification
The major change introduced by the new BS EN 61439 standard refers to testing. It states that the capabilities of each assembly will be verified in two stages: design verification and routine verification. This means the new standard completely discards the type-tested (TTA) and partially type-tested assemblies (PTTA) categories in favour of design verification.

Although BS EN 61439 still regards type testing as the preferred option for verifying designs, it also introduces a series of alternative routes to design verification.

The options include using an already verified design for reference, calculation and interpolation. The BS EN 61439 standard specifies that specific margins must be added to the design, when using anything other than type testing.

One of the main benefits of the new design verification procedure is its flexibility. Under the old BS EN 60439 specification customers would demand a Type Test certificate for each assembly particularly Incoming Air Circuit Breakers, which was very expensive and time consuming.

The new standard allows users and specifiers to pertinently define the requirements of each application. Annex D of the BS EN 61439 standard provides a list of 13 categories or verifications required, what testing method can be used and what comparisons can be made. In order to optimise testing time, the standard allows derivation of the rating of similar variants without testing, assuming the ratings of critical variants have been established by test.

Dividing responsibility
The second major change implemented by the new industry standard refers to the responsibilities of each party involved in the design, test and implementation of low voltage switchboard assemblies. Unlike BS EN 60439, which stated the OEM or the system manufacturer was solely responsible throughout the testing programme, the new standard divides the responsibilities between the OEM and the assembly manufacturer, or panel builder.

The new standard recognises that several parties may be involved between concept and delivery of a switchboard assembly. The OEM is responsible for the basic design verification. In addition, the assembly manufacturer is meant to oversee the completion of the assembly and routine testing.

For innovators like Boulting Technology, the new BS EN 61439 has brought more freedom and flexibility when designing switchboard assemblies. For example, Boulting Technology has designed and launched the Boulting Power Centre, a range of low voltage switchboards, which are available in 25kA, 50kA, 80kA and 100kA, fault ratings, and up to 6300Amp current ratings.

Although change is never much fun, it’s what technology and industry are all about. If this wasn’t the case, we would all still be using Windows 98 or the indestructible Nokia 5110.