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DNV GL © 2014 SAFER, SMARTER, GREENER1 DNV GL © 2014
Asset Management Before and After the Equipment Purchase
Industry Input on How to Improve Asset Performance
Larry Dickerman September 2015
DNV GL © 20142
Agenda
Discussion of the Asset Management Before the Purchase - Testing Landscape− KEMA Laboratories− Testing capabilities− Failure rates− Testing versus certification− Discussion of utility needs
Discussion of the Future of Asset Management – New Challenges− Traditional Asset Management best practices (e.g., Asset Management in
Smart Grid)− Growing Issues with variability of renewable resources (e.g., Smart Grid in
Asset Management)− Discussion of utility needs
DNV GL © 20143 SAFER, SMARTER, GREENERDNV GL © 2013
Asset Management Before the Purchase – Testing Landscape
DNV GL © 20144
KEMA Laboratories
Independent Have enough power and voltage to test
everything Covers high-power and high-voltage:
- switchgear- transformers- metering and protection
NetherlandsCzech RepublicPennsylvania
Certificates recognized and accepted world wide
80 years in business $100 M current expansion
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KEMA Laboratories at Chalfont, PA
KEMA is a major force in testing electric utility equipment in the United States for every major equipment supplier.
Our KEMA Laboratories perform $60 million in tests annually, including:– Arresters– Bus duct/bus bar– Cable & Accessories– Breakers– DC equipment– Fuses– Insulators– Substation automation– Switches and switchgear– Transformers
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Scope of Testing
Testing methods Laboratory testing Onsite testing Witness testing Remote testing
Documents Type test certificates Test reports Calibration certificates Inspection reports Investigation reports
Tests KEMA type test certificate KEMA report of performance KEMA test report Power electronics tests Calibration of systems Diagnostics Low voltage AC testing Thermal testing continuous current Low voltage DC testing Capacitor switching High Voltage testing
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Reasons for Testing
KEMA Test Report
Performed at independent lab according to user’s specifications
Ordered by equipment user
Verify a specific product meets user-defined requirements
Must be read carefully
Type tests Certificate
Verify that an example product meets the requirements of a specific standard
Ordered by manufacturer Performed at independent
lab according to IEEE and ANSI standards
Certified by testing laboratory
Complete peace of mind
KEMA Report of Performance
Verify that an example product meets a subset of the requirements of a specific standard
Ordered by manufacturer
Performed at independent lab according to a subset of IEEE and ANSI standards
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Reasons for Testing - Increased HSE focus
Fault arc management, internal arc detection and handling
Reducing fire risks
Low magnetic field equipment design
Controlling sound levels, RI and EM emissions
Biodegradable transformer oil
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Results - Around 25% of test-objects initially fail tests
Broken bushing
Oil spill with fire
Line trap
oil spill
Disconnector Trafo winding
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Results - Around 25% of test-objects initially fail tests
Switchgear panel Distribution transformer
Oil spill
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Transformer Testing Statistics By Rating
Higher rated transformers have higher failure rates
25-50 50-100 100-200 >2000
10
20
30
40
50
60
initially not OK initially OKMVA (rated)
num
ber
of t
rans
form
ers
20-100 100-200 200-300 300-400 >4000
10
20
30
40
50
60
initially not OK initially OKkV (rated)
num
ber
of t
rans
form
ers
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KEMA Power Transformer Test Statistics By Year
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 20130
5
10
15
20
25
30
35
40
0
10
20
30
40
50
60
totalfailure rate %
tota
l num
ber o
f tes
ted
trans
form
ers
failu
re ra
te to
pas
s sh
ort-c
ircui
t tes
t [%
]
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Cables – Type Testing
Failure rates per voltage class HV: 22% MV: 22%
Our experience between 1993 and 2013550 components over 20
years
Source: DNV GL
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DNV GL HV cable / accessories test statistics by component
Failure rate 1993 - 2008
cable termination straight joint crossbonding joint
transition joint0
10
20
30
40
50
Faul
ire ra
te to
pas
s te
st (%
)
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In Service Equipment and Material Failures Continue to Be An Issue
Did you know?
In the United States, approximately 25% of outages are due to equipment and material failures.
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In Service Equipment and Material Failures Continue to Be An Issue
Europe requires certification of equipment that guarantees a minimum quality level and a level playing field which facilitate purchase decisions.
Suppliers certainly use the testing done at Chalfont to understand possible defect however it is entirely at their discretion.
Present third party testing only covers a portion of the standard in most cases as opposed to the entire standard
Present third party investigation of material and equipment failures is the exception rather than the rule.
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Discussion - How Can KEMA Test Labs Further Help Utilities?
ARC Flash testing and risk assessment? Testing of smart grid equipment? Remaining life assessments? Testing variability of solar on power systems and mitigation
techniques/equipment? Failure investigation? Audit of utility internal repair shops or certification? Testing material and equipment beyond manufacturer’s acceptance testing (ANSI,
IEEE, etc.) to look at endurance (how long it will last)? Helping to develop better targeted maintenance programs based on our testing
experience of the same equipment? Others?
DNV GL © 201418 SAFER, SMARTER, GREENERDNV GL © 2013
Asset Management After the Purchase – New Challenges
DNV GL © 2014
From Asset Management to Asset Optimization
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Traditional Asset Management Best Practices – The Present Situation
Transmission and Stations
Well established approaches and disciplines due in part to NERC compliance Risk & Condition based asset management Assessment tools Benefit versus cost analysis Optimized spending plan that is defensible to CFO and utility commissions
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Traditional Asset Management Best Practices – The Present Situation
Distribution
Tends towards accepted programs that are prioritized locally but funded centrally Improving asset base for many utilities but lack of clarity about how to use it Emerging tendency to view each feeder as a complete asset with risks and health
considerations – a more sophisticated and defensible approach to worst performing feeders
Struggles to prioritize new technology versus asset health spending
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Including Smart Grid in Asset Management Business Case
Asset management principals applied to Smart Grid
– Across replacement, system expansion, technology projects– Disciplined approach that avoids generalizations and builds cost and benefits
from specific assets and circuits/lines– Agreed metrics
More regulatory scrutiny
– Defensible spending plan– Environmental emphasis– How to transition to grid of future (e.g. accommodate distributed generation)
DNV GL © 2014
05/01/2023Technology Investment Planning23
Including Smart Grid in Asset Management – Optimal Spend
Asset management principals applied to Smart Grid An approach that – navigates the changing environments impacting the electrical system
– optimizes spend by applying proven, new and emerging options to meet system and equipment performance objectives.
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Including Smart Grid in Asset Management - Optimal Spend
Replacements, refurbishment or new technology implementations should be prioritized to achieve corporate goals (reliability, safety, financial performance, etc.)
Prioritized list of spending across and within projects. Understand the relationship between dollar spend and benefit.
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Growing Issues with Variability of Renewable Resources/DERRenewables are becoming game changers
Decentralised renewable
power generation sources are
changing the utility model
Renewable technology has
relied on government
incentives and policy
mechanisms to date, but the price curves are coming
down
Lower Production Cost + Increased Efficiency = Growing Market
DNV GL © 201426
Growing Issues with Variability of Renewable Resources/DERRenewables are becoming game changers
Implications
Different operational approaches and equipment to handle variability Different asset life both positive and negative due to solar energy concentration
increasing Distribution planning will require dynamic models instead of steady state Independent laboratory testing will likely be required to determine the impact on
traditional assets and new assets developed for mitigation to find what models miss
DNV GL © 201427
Including Smart Grid in Asset Management Using historical near real time information from AMI, SCADA, Distribution
Automation, etc. to create a planning sandbox for consideration of new technology investments and capacity additions.
Using information from AMI, SCADA, Distribution Automation, etc. in rapid load flow models to identify operational issues and opportunities to optimize dynamically– Reduce system losses through VAR control– Reduce system losses through dynamic circuit reconfiguration– Reduce demand through voltage control– Implement short term system oriented 30 second demand response to deal with
variability of distributed resources– Self healing– Use near real time information to identify asset management needs and
reprioritize spending
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Discussion - How Can DNV GL (KEMA) Help Utilities?
Traditional Asset Management?
Including asset management perspectives in Smart Grid business case?
Distribution planning with increasing levels of distributed resources such as solar?
Using Smart Grid data for asset management?
Asset database or asset management IT platform?
Independent certification of equipment performance to industry standards (IEEE, IEC, ANSI)
Others?
DNV GL © 201429
SAFER, SMARTER, GREENER
www.dnvgl.com
Asset Management Before and After the Equipment Purchase
Larry [email protected]
