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Conference Day 1 - 30th May
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8.30am
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Registration
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9.00am
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Opening Address - Steve Mackay
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9.15am
Session 1
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The Increasingly Important Relationship Between Power and Cooling in the High-Density Data-Centre Environment
Ian Bitterlin - Vice President, Chloride Power, UK
Critical computer loads have traditionally required continuous voltage supply with a maximum break of 20ms to function without fault. At the same time the temperature and humidity of the ambient cooling air has been controlled to within fine limits and close-control air-conditioning plant has been the norm.
However, whilst the same tolerances of power and cooling are enforced today, the ever-increasing load miniaturisation and compaction has led the floor power density to rise from 300W/m2 to well over 10,000W/m2. Indeed, individual 600mm wide by 900mm deep IT cabinets can achieve 30kW if fully equipped with the latest Blade-Server technology. This power density has resulted in the need to provide the cooling system with the same amount of reliability, redundancy and resilience as the power system has traditionally been designed to deliver.
This opening presentation will review the market drivers, optional solutions and the impact of high-density computing on the built environment, reliability and power consumption.
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10.15am
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Morning Tea
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10.45am
Session 2
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Monitoring Emergency Power Supply Health and Performance to Ensure Peak Reliability
Terry Cousins - Director Motswedi TLC Software
Emergency power supplies (EPS) are installed to provide power to critical loads either as a backup or an on-line supply. The reliability of the EPS is a key factor when selecting equipment. Once the supply is installed, routine maintenance and testing does not always ensure that the supply maintains its design reliability. This presentation will discuss how monitoring of emergency and utility supplies can ensure the reliability of an EPS. Considerations in the design, selection and installation of monitoring systems will be presented as well as the methodologies used in the analysis of such data. Case study data from field measurement systems will be provided. Monitoring systems can assist engineers, consultants and facilities management personnel to maintain emergency supplies at peak reliability.
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11.30am
Session 3
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Uninterruptible Power Supplies (UPS) Selection & Design Guide Industrial Plant
Rawnee Ho Boon Chye - Senior Electrical Engineer, Intel Corporation
A guide to the selection and design of Uninterruptible Power Supplies (UPS) in Industrial Plants will begin this presentation followed by an exploration into the operation and common topologies of UPS, namely offline and online UPS systems. Some of the "higher-performance or hybrid" UPS's are found in special or hosting facilities, this will be touched on to highlight the important differences when deciding on the best application for a particular situation.
Then a discussion of the design of UPS for non mission/mission critical versus the cost implication followed by a review of UPS critical components including manual/maintenance bypass, static transfer switch/bypass, earthing, harmonic issues and no-break systems or so called "make before break systems". To conclude, an evaluation of design estimation and calculation of the UPS power consumption using case studies and real world examples.
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12.15pm
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Lunch
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1.15am
Session 4
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Aspects of Power System Reliability Assessment
Lalit Goel - Professor & Head, Division of Power Engineering, School of EEE, Nanyang Technological University, Singapore
Reliability is an important requirement in a modern power system, and therefore utility planners, designers and operators have used a wide variety of techniques to achieve acceptable levels of reliability in their electric power systems. The early techniques which were all deterministic are slowly but surely being replaced with probabilistic methods which respond to system parameters and uncertain conditions. Quantitative reliability evaluation also provides the ability and opportunity to incorporate cost/benefit assessment into the decision-making process in system design and planning. This talk will introduce the basic concepts of quantitative power system reliability evaluation at all three levels, i.e., generating capacity alone, generation and transmission systems collectively, and distribution system alone. Issues such as reliability cost vis-à-vis reliability worth would also be discussed.
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2.00pm
Session 5
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Automatic Transfer Switching Equipment: An Analysis of Emergency Power Systems
Mardian Junus - Regional Manager (South Asia), Emerson Network Power, ASCO Power Technologies
Emergency power systems are required to restore designated critical loads to an alternate power source when the utility derived service becomes inadequate. The proliferation of technology has made the global conduction of business increasingly dependent upon the availability of reliable power. As a result, alternate power systems are being installed and expanded to protect the broadening scope of critical electric loads. This discussion will review power systems and loads with a view towards automatic transfer switching equipment and the factors which influence its design and qualification.
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2.45pm
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Afternoon Tea
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3.15pm
Session 6
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Effects of Voltage Sags on Domestic Appliances and Office Equipment
M V Chilukuri, Lee Ming Yong, Phang Yoke Yin - Centre for Electric Energy and Automation, Multimedia University, Cyberjaya
Voltage dips and their impact on customer loads constitute the most prevalent power quality problem in distribution systems. Voltage dips can result in tripping of customer equipment and shutting down of production lines leading to production loss and expensive restart procedures. Sensitive equipment to volt-age dips include: computer-controlled processes, variable speed drives (VSD), induction motors, office equipment and domestic appliances. System modifications can be implemented to minimize the magnitude and duration of voltage dips.
This project investigates the effect of voltage sags on domestic appliances and office equipment and reports their sensitivity to voltage disturbances occurring in power systems due to inherent protection practices. It will also, highlight the possible solutions available for customer such as UPS, DVR and other Power Conditioners as and where it applicable for critical loads at home and offices. Finally the research aims to address the manufacturing industry to incorporate new measure to counter the problem at design stage while taking into consideration of existing protection practices at transmission and distribution level, as power quality awareness is growing with hike in electricity prices and deregulation of electrical industry.
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4.00pm
Session 7
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Emergency Power Supplies - Discussion Panel
Hosted by Ian Bitterlin, Terry Cousins, Lalit Goel
In line with the conference's mission of exchanging ideas and practical experiences, this panel will draw on participants to discuss emergency power supplies in their workplace particularly concerning diesel power supplies and paralleling, UPS's, and batteries.
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Conference Day 2 - 31st May
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9.00am
Session 8
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Generating Capacity Reliability Evaluation
Lalit Goel - Professor & Head, Division of Power Engineering, School of EEE, Nanyang Technological University, Singapore
This talk will compliment the presentation on Conference Day 1 by discussing applications of probabilistic reliability techniques on generating capacity systems. The talk is designed to provide practicing engineers and technical managers with the basic concepts of probabilistic reliability assessment of power generating systems. Basic reliability indices such as loss of load expectation (LOLE) and loss of energy expectation (LOEE) will be discussed and illustrated using simple examples.
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9.45am
Session 9
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Considerations for Achieving High Reliability Standby Lead-Acid Battery Installations for IT & Telecom Applications: Design and Operation
Ian Bitterlin - Vice President, Chloride Power, UK
Continuous power systems require a standby energy source, traditionally provided by Lead-Acid accumulator cells in series, either 24-48V for telecom or 400-600V for UPS.
The introduction and widespread adoption of Valve-Regulated technology in the late 80's resulted in a highly dense and relatively low cost energy storage solution that was, so called, 'maintenance free'. However, these cells had an unfortunate early history and proved to have a temperature dependent life requiring routine maintenance, apart from other early failure mechanisms.
Today the operation and maintenance requirements are generally well known and with careful design a highly reliable and predictable battery installation can be engineered. This presentation addresses the selection, configuration (for reliability and maintenance), physical accommodation, safety and maintenance requirements of VRLA batteries for 3-phase UPS systems that require terminal voltages in the 400-600V range..
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10.30am
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Morning Tea
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11.00am
Session 10
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Using UPS Power Supplies to Manage the Effects of External Voltage Dips in the Manufacturing Industry
Arumugam Langkadaran - CSM Electrical Engineer, Intel Corporation
Millions of dollars are wasted due to incidents of voltage dips in Intel's manufacturing plants. Interrupting critical equipment and tools can cause severe financial and time loss for the manufacturing industry in Malaysia on a regular basis. Methods to optimise the usage of UPS power sources will be explored including ways to harden the control circuits of these facilities tools to withstand these external voltage dips. Real world case studies will be used to illustrate this point with equipment such as air compressors and chillers.
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11.45am
Session 11
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Modular Power Protection Concept for Mission and Business Critical Applications
Mr Yuen Tat Yan - Director, ADC Power Concept Sdn Bhd
This presentation will describe a new Modular Power Protection Concept (MPPC) for mission and business critical applications that enhance the overall availability of the power supply. High availability of uninterruptible power supplies is of paramount importance for continuous operation of datacenters, telecom equipment, health care equipment, traffic control and banking transactions. The new MPPC is based on the latest modular (rackmount) three phase transformer-less Uninterruptible Power Supplies (UPS) technology.
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12.30pm
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Lunch
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1.30pm
Session 12
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Measuring Emergency Electrical Loads in Commercial Buildings
Terry Cousins - Director Motswedi TLC Software
Many commercial buildings were built decades ago. The electrical facilities in these buildings often do not meet the requirements of modern loads. Provision of emergency power was often used for little more than emergency lighting. This paper will discuss the remote measurement of electrical loads at various points in low and high rise commercial buildings. The loads that are measured include chillers, heating, air handling, lighting and various office equipment such as computers and servers. The measurements are taken on the main and emergency distribution systems. The data is remotely collected from various sites to a data centre where it can be analysed. These measurements will assist utilities, consultants and facilities management personnel to design, plan and modify emergency and normal building supplies.
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2.15pm
Session 13
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Harmonic Mitigation Using Transformers Case Study: Sydney Olympics
Dominic Loh - Product Manager (South East Asia) Eaton Power Quality Pte Ltd
In 2000 the Sydney Olympics brought together athletes from all over the world. It also brought together the electronic media and their equipment from all over the world, concentrated in the IBC. The challenge was to provide reliable power and to limit the effects of mains borne harmonic voltage distortion between broadcasters, all within a very short timeframe. As the actual load could not be modelled or even assembled until the weeks before the games, testing and simulation became a critical part of the project.
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3.00pm
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Afternoon Tea
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3.30pm
Session 14
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Emergency Power Supplies Survey - Discussion Panel
Hosted by Ian Bitterlin, Terry Cousins, Steve Mackay
During this session we will assess and review the snap survey on emergency power supplies. We will be conducting an anonymous voluntary survey of practices applied on emergency power supplies to all participants at the conference for their sites and this will be highlighted and then discussed.
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4.15pm
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Closing
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