Oil & gas interactive presentation v1, 6th july 2015

MOTOR & GENERATOR – SERVICE & MANUFACTURE
About Us Services New Machines Case Studies Additional Material
© 2015, Parsons Peebles
Comprehensive
Service, Upgrades
& Bespoke New
Machines for the
Oil & Gas industry
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility

About Us
Services New Machines Case Studies Additional Material
 A manufacturer of bespoke motors and generators with a well
developed service offering
 Headquartered in Rosyth, Scotland with full load test
capability
 Specialists in service and manufacture of “non-catalogue”
electrical machines predominantly for the power, oil & gas
and petrochemical markets
 Unique capabilities in terms of offering of low starting
current, low noise machines and tailored solutions
 Largest installed base of any motor manufacturer in the North
Sea
 From January 2013 significant investment to grow the
business from Clyde Blowers Capital
 Responsive sales support for aftermarkets support
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility

About Us
 Parsons Peebles strives to be the specialist electrical
machine manufacturer and service partner of choice
 To do this we provide our customers with
- Superior solutions through leveraging of our IP,
proprietary processes and specifications
- Quality of product through compliance, reliability and
availability
- Best people to partner with in terms of knowledge,
attitude and focus on delivering client value
- Responsiveness through focus on turn-times, lead-times
and mobilisation
 We work globally across various industries and are
happy to extend our services to existing clients or forge
close relationship with new partners
 Headquartered in Rosyth - ideally located to support
the North Sea
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility

About Us
Parsons Peebles have applications specific experience across various end user markets, focused on:
Offshore Oil & Gas
Parsons Peebles has the largest
installed base of any manufacturer
in the North Sea - as such we’re well
used to the provision of new
machines and offshore services for
the harshest of environments.
We are also comfortable working to
offshore standards and certification
requirements.
Onshore Oil & Gas
With expertise in hazardous area
machines and other requirements
for onshore oil and gas, Parsons
Peebles are trusted in this sector.
Our motors, generators and service
offerings are utilised in
petrochemical, refinery and oil
transportation facilities globally.
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility
Power
For conventional, renewable or nuclear power
applications Parsons Peebles has extensive
experience worldwide. We understand the
needs of driven equipment in this sector
whether they be pumps, compressors, fans or
other key equipment. Likewise on the
generator supply or maintenance side, we have
the skills to power your process.
General Industrial
We have new machine and service know-how
across various general industrial sectors
including water, marine, cement and mining.
Our offerings can be tailored to the specific
needs of your industry whether these be
upgrades to reduce noise, lowering starting
current or simply keeping your machines in
optimum working condition.

About Us
Over 110 years experience in design and manufacture of electric motors and generators
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility
1898 1904 1969 1973 1989 2000 2013
ORIGINAL BUSINESS
FORMED BY DAVID
BRUCE PEEBLES
Bruce Peebles &
Company Limited set
up the Tay Works,
Bonnington, Leith,
Edinburgh
BRUCE PEEBLES - MAIN
ELECTRICAL CONTRACTOR
TO THE FIRST UK HYDRO-
ELECTRIC SCHEME
1st commissioned in 1906
at Cwm Dyli in North
Wales. Uprated in 1987
from 5MW to 10MW
output
BRUCE PEEBLES INDUSTRIES
MERGED WITH REYROLLE
PARSONS, NEWCASTLE
Re-named Parsons Peebles
Limited, Motor & Generator
Division (including the C A
Parsons factory at Witton,
Birmingham, previously part of
GEC)
AWARDED THE
QUEENS AWARD
FOR EXPORT
ACHIEVEMENT
BECAME PART OF
ROLLS-ROYCE
INDUSTRIAL
POWER
RE-LOCATED TO
ROSYTH, SCOTLAND
Peebles Electrical
Machines Limited re-
located to Wood
Road, Royal
Dockyard, Rosyth
PARSONS PEEBLES
ACQUIRED BY
CLYDE BLOWERS
CAPITAL
2014
ACQUIRED
PREFORMED
WINDINGS

About Us
 Rosyth site covers an area of 8,300 m2 including
manufacture, assembly and test as well as offices for all
support functions including design and engineering
 Well situated for rapid access to N Sea customers and assets
 Facility capability includes:
- Main bay has an overhead lifting capacity of 63 Tonnes with further
lifting capacity in other areas of 2 x 25 Tonnes and 1 x 15 Tonnes
- 2 gas powered drying ovens and a varnish dipping tank for
impregnation of stators and windings
- Craven lathe with a capacity of 60 tonne and 7m long
- Access within the group to all other manufacturing processes
(turning, milling, drilling, horizontal boring, CNC machining as well as
laser and profile burning, rolling, folding and guillotine capabilities)
- Stamping booth for laminations / internal paint shop
 One of the most comprehensive test facilities in Europe:
- Provides direct full load testing
- Capability at 50 and 60Hz up to 8MW for motors / 35MVA for
generators and voltages up to 15kV
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility
MAJOR NORTH
SEA OIL FIELDS
ROSYTH

About Us
 Preformed Windings Limited – Sheffield, UK
- Can provide bespoke replacement windings for a wide variety of coils
Diamond Coils, Armature Coils and Concentric Coils
- Our pre-production computer aided design capability and our
extensive database of coil winding specifications enables the speedy
production of highly accurate coils
- Looping machines can handle the largest winding requirements
- We produce formed coils on automatic shaping machines. By
insulating and pressing to the tightest tolerances, we are able to
ensure the best fit within the stator slot which results in optimum
performance and long life in service
- In-house checks include earth testing, tan delta, inter-turn and
partial discharge tests. All our coils comply with international
standards and meet the highest levels of performance
- The new facility (17,000 sq ft=90% Increase) will be fitted with the
latest cutting, straightening, looping, shaping, taping and pressing
machines and have been designed using advanced value stream
mapping and lean principles.
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility

About Us
 UKAS QUALITY MANAGEMENT SYSTEM: Now updated
to ISO 9001: 2008
 BASEEFA – ATEX QA Notification / IECEx QA Report
- Certification No.- Baseefa ATEX 0805 for Explosive
Area Equipment Design, Manufacture & Repair
 AEMT - Association of Electrical & Mechanical Trades
Certified Member
 FPAL – Verify – Oil & Gas
 UVDB – Verify – Power & Industrial
 ISO 14001: 2004 Environmental
Company
Profile
Proud
Heritage
Rosyth
Facility
AccreditationsValue
Proposition
Markets Sheffield
Facility

Services
About Us New Machines Case Studies Additional Material
Service Based on
Comprehensive
Engineering Know-
How
Total Solutions Spare PartsField Services Workshop Services Rewind Services

Services
 Parsons Peebles can conduct reactive maintenance to
ensure rapid return to service if failure occurs or
parts are required
 Our total service solution offerings include:
- Asset management
- Long term maintenance contracts
- Life extension programmes
 Additionally we offer full on-site or workshop training
to ensure your personnel optimise the operation of
your electrical equipment
 Custom Maintenance Solutions designed to directly
align with our Customer Maintenance Strategies
 From Simple Repairs to Sophisticated Asset
Management Solutions on Parsons Peebles and all
major 3rd party brands

Services
 Whether on a offshore oil installation to an onshore
refinery, Parsons Peebles field service personnel are
dedicated to providing the best service, fast
 We offer an extensive range of services including
- Installation &
commissioning
- Equipment surveys
- In-situ rewind
- Test & inspection (visual &
boroscopic)
- Thermographic inspection
- In-situ core flux testing
- Tan Delta DLA testing
- Onshore & offshore
capability (AEMT qualified)
- Dynamic balancing
- Risk assessments
- Insulation replacement &
repair
- In-situ laser realignment
- In-situ balancing
- Purge system servicing
- Cryogenic decontamination
- Lubrication system service
health care
- Heat exchanger servicing

Services
 Additional workshop services include
- Full load testing – direct load up to 8MW 60Hz
- Noise & vibration analysis
- Full rewinds
- Dynamic balancing
- Modification of bearing designs
- Shaft replacements
- Hazardous equipment recertification
 However complex the repair or tight the deadline,
Parsons Peebles will endeavour to provide a quality
service to meet your needs

Services
 Parsons Peebles has its own coil manufacturer, Preformed
Windings, this offers us the following advantages
- Rapid response, coils in days not weeks
- The ability to offer coils of all types e.g. resin-rich or VPI for any
machine brand
- Precision fit, quality and coil life
 Our experienced winders can rewind in-situ or if the machine is
returned to Rosyth
 Our OEM status enables us not only to offer replacement coils
but also to upgrade these, e.g.
- To adjust coil drop to make coils easier to fit on site
- To increase the copper conductor density leading to increased
machine efficiency
- To enhance coil insulation hence longevity of life using the latest
tapes and insulators
 Due to our full service capability we can also offer core repair or
replacement if on rewind we uncover any other machine issues
Total Solutions Spare PartsField Services Workshop Services
Rewind Services

Services
 Our value proposition for spares includes
- Immediate and personalised response from our experienced team of
engineers and service professionals
- A competitive service with deliveries tailored to your individual
requirements (including rapid response for stocked components)
- Full manufacturer's warranty
- A range of parts for other OEM equipment can be provided
 Replacement parts for Parsons Peebles machines
- Full history and traceability of all of the units manufactured in the
last fifty years
- Full replacement parts can be provided on supply of serial number or
project reference
- Covers all units badged with the PEEBLES name such as Bruce
Peebles, Parsons Peebles, and NEI Peebles
- Latest technology and materials will be used so all parts are supplied
to highest quality
 Intelligent packing and storage offering
- Recommended spares held in storage for emergency use (strategic
service management)
- Regularly inspected and stored in a dedicated facility for delivery in
24 hours, automatically replenished after use

New Machines
About Us Services Case Studies Additional Material
Bespoke Machines
with Specialised
Features Tailored
to Application
Design philosophy Made to lastMade to perform Made to fit

New Machines
 Parsons Peebles have a rich pedigree in manufacturing
motors and generators for special and unusual
applications spanning over 120 years
 Instead of modifying a standard design to suit a new
application, we start with a blank sheet of paper and build
the specification to exactly suit the requirements of the
application, environment and client preference
 With a comprehensive historical database of 1,000s of
existing designs and their resulting test data, we are able
to produce new, custom designs with an exceptional level
of predictability, avoiding load compatibility and
performance issues on completion of manufacture
 Our new machines are highly robust due to their proven
high integrity keyed-bar caged rotor construction

New Machines
 Performance characteristic specifically engineered to suit the
requirements of the application
 Extensive range of enclosure, cooling, mounting and bearing
options available
 Area classifications include Safe, Exn A, Ex p, Ex e
 Low starting current options (down to 270% FLC)
 Low noise level options (Multi-MW machines down to
68d(B)A)
 Packaged solutions available including VSD, soft start,
switchgear and control systems
 In house full load test facility to 8MW, 50 and 60Hz

New Machines
 We offer mechanical interchangeability with existing
irreparable or obsolete plant, including replacing old
machines with imperial dimensions
 Increased outputs available in existing mechanical fixings
and size envelope
 Reverse engineering of existing assets where machine
format and performance must be duplicated exactly
 Site surveys available to assess existing machines for
replacement (including dimensional and performance
surveys)
 All terminal points made to match existing interfaces – plug
and play

New Machines
 Typical design life of 40 years
 Unsurpassed quality ethic in all stages of design &
manufacture
 Extensive reference list of Parsons Peebles machines still in
operation after 30-40 years
 Proven history of supreme reliability in the most arduous
and hostile applications and environments

Case StudiesNew Machines
About Us Services Additional Material
A Track Record of
Solving Problems
& Maximising
Machine
Availability
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
About Us Services New Machines Additional Material
Industry: Offshore Oil – Production Platform
Customer / Location: Talisman / Fulmar Platform North Sea , UK
Category: Services – Field services / Workshop services
Machine Type: Compressor drive
 Situation
- The original Borsig compressor drive motor (supplied in 1979) had been inspected and
cracks were found in the rotor frame. As this machine was production critical it was
decided that it was not cost effective to remove and repair due to the estimated time
out of operation.
 Challenge
- Build and install a new drop in replacement motor to reduce expensive and unexpected
platform shutdown. The new motor was made to industry standards and supplied to
the client in time for their planned annual shutdown to minimise the impact on
production. Additionally development of a detailed change out procedure to allow for
the location , weight and size of the machine in question.
 Parsons Peebles Solution
- Replacement machine was specified to have minimum interface changes with original
- Detailed offshore survey was carried out to carry out risk assessments and develop
scope for change out
- New machine was assembled, tested then dismantled to allow for transport and
installation in stages
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures
Continued on next slide 

Case Studies
Customer / Location: Talisman / Fulmar Platform North Sea , UK
Machine Type: Compressor drive
 Parsons Peebles Situation Continued
- Plan was developed in conjunction with various disciplines in customers organisation to
ensure smooth and speedy turnaround
- Project was successfully executed within a tight time frame (4 weeks)
 Customer Benefit
- Machine upgrade from EXN to EXP to comply with current legislation
- Downtime minimised due to detailed planning and speedy execution
- Parsons Peebles provided a ‘one stop shop’ for this turnkey offshore project. From
supply of a bespoke replacement machine through scope development and execution of
change out. This negated the need for any costly ‘tier 1’ contractor involvement and
limited the requirement for management of change processes. This saved the customer
in the region of £500k excluding any costs for lost production.
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
 Situation
- Parsons Peebles were requested to evaluate the potential to obtain increased output
power from an existing pump drive motor. Thereafter Parsons Peebles were requested
to evaluate the feasibility of supplying a new-build strategic spare which could be used
at two different locations on the same installation
- While the units are similar they were for completely different applications, one a Pump
Drive the other a Compressor Drive with other discrete differences in the configuration
of the machines
- The Customer’s intention being to potentially use the hybrid to temporarily replace the
existing machines to then avail removal of same for overhaul in a shore based
workshop while maintaining Pumping and Compression production capability
 Challenge
- While the units are similar they were for completely different applications, one a Pump
Drive the other a Compressor Drive with other discrete differences in the configuration
of the machines
- The new machine to be utilised as a spare for the existing machines to permit removal
of the existing machines for maintenance overhaul at a shore based workshop whilst
maintaining Pumping and Compression capability for production
- To evaluate the existing Crude Oil Export Pump Motor design for a higher output
power in the existing machine or a revised design in the same footprint
- To evaluate the provision of a single New Build strategic spare at the higher rating
which could be utilized in place of both the Pump Drive and the Compressor Drive
machines
Customer / Location: Conoco / North Sea, UK
Category: New Machines - Upgrades
Machine Type: Motors driving crude oil export pumps & compressors
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
 Challenge (continued)
- To evaluate the interface with all existing facilities, main cabling and instrumentation
cabling on the two units to be accommodated by new single machine
- Design evaluation shows the requested higher power can be accommodated
- While the two existing machines have differently configured shaft extensions one
tapered with oil pressure assembly and one parallel – the solution will be to provide
one parallel extension with new couplings for each application required
- The main supply cabling is on the same side of the two machines but at different entry
angles differing by 90 degrees – to be accommodated by common neck and 90 degrees
change facility
- The main bearings on the two machines are the same diameter but differently cooled –
one with circulating oil the other with a water cooling arrangement – a hybrid bearing
will resolve
- Both machines are water cooled but have their supply and return headers on opposite
sides of the machine – pipework management to resolve (example below)
- The instrumentation terminal box cabling connections are on different sides of the two
machines – cable and box management will resolve
- Savings of £300k by procuring 1 critical spare machine vs 2 machines
- Additional savings by matching existing electrical/mechanical footprint exactly
- Production losses limited due to rapid reconfiguration of spare machine and approved
RAMS in place in the event of failure
Customer / Location: Conoco / North Sea, UK
Machine Type: Motors driving crude oil export pumps & compressors
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
Original Grease Routings
Customer / Location: BP / North Sea, UK
Machine Type: Motor driving a main oil line pump
 Situation
- Parsons Peebles Service assistance requested to attend on an off-shore installation to
inspect and replace suspect bearings on two M.O.L. Pump Motors
- The motors, a series of three vertical pump drive motors originally designed and built by
NEI Peebles, have had a history of bearing problems with incorrect bearings fitted by
others
 Challenge
- Bearing issues on two M.O.L. Pump Motors result in risk of Platform shut down.
- Continuation of failures resulted in a lack of confidence in reliability going forward
- Urgent action required off-shore to inspect bearing assemblies and wherever possible
replace the bearings and return the units to production
- Short term solution implemented by ensuring speedy bearing change out on 2 machines
and availability of spare components for quick turnaround should failures occur
- Full failure RCA carried out by Peebles with client support
- It was discovered that due to the pump operating dramatically below its design duty
point that the power required from the motor was approx 30% of design load
- The original bearings were operating below the minimum limits of radial load resulting
in ‘skidding’ of bearings
- Peebles carried out full re-design of bearing assemblies to suit the new load while
ensuring the integrity and certification of machine were unaffected
Proposed Bearing Arrangement
Original Grease Routings
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
 Situation
Machine had suffered with a history of cooler leaks and after a trip on start-up an
inspection thereafter inside the machine revealed a major winding failure
 Challenge
Due to the size, weight & location of the machine on the platform a detailed change
out procedure had to be developed as the machine could not be removed or installed in
one piece. Also a formal root cause analysis had to be completed and solutions
implemented to ensure continued confidence in machine reliability
 Operational Improvements
Machine upgrades provide confidence in future reliability by eliminating the failure
mode experienced. Platform generation exposure reduced with speedy execution of
scope. Plan for regular service interventions introduced to identify & resolve potential
issues before they arise
 Parsons Peebles Solutions
- Inspection of winding failure identified that a significant proportion of the core had
been damaged eliminating the possibility of rewinding in-situ
- Detailed offshore survey was carried out in conjunction with incumbent lifting
specialists to carry out risk assessments and develop scope for the complex stator
removal and re-installation
Customer / Location: Britannia
Machine Type: 1 MW, 6.6 kV, 4 Pole, 60 Hz Generator
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
- Machine was receipted into our works where a replacement stator had been supplied
by peebles and was subsequently changed out with the failed stator
- RCA identified that the historical cooler leaks were due to excessive corrosion of tubes
- Coolers were upgraded to double tube design of titanium construction to eliminate
future leaks
- Insulation system upgraded to include a ‘double dip & bake of the windings. This gives
improved protection and resistance to contamination
- Plan was developed in conjunction with various disciplines in customer`s organization
to ensure smooth and speedy turnaround
- Project was successfully executed within tight timeframe
- Parsons Peebles provided full turnkey support to manage the execution of this project
This negated the requirement for Britannia to procure expensive temporary power
generation whilst providing the confidence of a fixed return to service date for the
repaired machine
“… just want to thank you and your team for your support thus far. Clearly this is a big
challenge for us and so your prompt and timely response to questions, provision of
labour, procedures and materials is much appreciated. Please pass on my appreciation
to your team and broader organisation.”
- Jim Aston, Britannia Operator
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
 Situation
The existing LP sea water injection LSE motors on Scott platform had a history of
winding failures and failed rotor bars resulting is costly downtime and lost production
 Challenge
Parsons peebles were approached to investigate the feasibility of replacing the 4
machines in the fleet with there own machines which have a superior keyed bar rotor
construction to eliminate the reliability issues encountered. This study involved:-
- Full engineering design review
- Offshore survey
- Confirm motor as per drawing
- Identify local restrictions to motor removal / installation
- Details of instruments etc., not shown on general arrangement drawing
4 machines were supplied that met the following criteria:-
- Shaft centre line – match to existing
- Holding down bolts, jacking, dowelling matched to existing Oil pipes – flexible
- Main terminal box designed for “plug & play”
- Terminal configuration & position, gland plate position all to match existing
- Auxiliary terminal boxes – same position
- Cooler pipes – same position
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures
Customer / Location: Scott Platform / North Sea
Machine Type: 6800kW, 2pole, 13.8kV Water Injection Pump Motors

Case Studies
 Parsons Peebles Solution Continued
- Replacement motor better match for existing duty.
- Exceeded Nexen’s operational constraints - Full load test witnessed by Nexen
- Motor ‘signature analysis’ – current, partial discharge etc. performed in parallel during
factory test
- Typically a repair of one of the original units would be greater than £150k, the cost of
removal and reinstallation would be of similar cost. This does not include the lost
production resulting from reduced sea water injection which would most likely be in
multiples of the £100k
- This affords Nexen a saving of £500k per breakdown and the peace of mind of assured
continued reliability of their assets and uninterrupted production
Customer / Location: Scott Platform / North Sea
Machine Type: 6800kW, 2pole, 13.8kV Water Injection Pump Motors
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Case Studies
 Situation
- This main generator on North Alwyn was originally supplied only as ‘desert rated’ due
to availability and urgent requirement of operator at the time but had been in
operation for eight years in its North Sea offshore environment. The end user wanted
us to fully assess the current condition and overhaul in line with findings
- The machine being of ABB manufacture, Parsons Peebles took on the upgrade project
due to our experience with servicing third party equipment
 Challenge
- Originally the end user wanted us to fully assess the current condition, restore to ‘as
new’ condition and prove the machines mechanical & electrical integrity by performing
a test on load. However on the strip down it was found that although the water ingress
on the main machine was minimal there had been severe ingress & corrosion on the
exciter due to it only being desert rated. It was requested that Parsons Peebles modify
the machine to reduce future corrosion
- The machine was returned to as new condition and load tested successfully within the
clients tight timeframe. The exciter sealing arrangement was upgraded to limit future
water ingress
- The Parsons Peebles exciter cover modification will allow this desert rated machine to
be more appropriately operated in an offshore environment without the severe water
ingress previously experienced
Customer / Location: Major UK Oil Company, North Sea , UK
Machine Type: 25 MVA Generator
Power Upgrade &
Hybrid Machine
Solution
Rapid
Generator
Rewind
Overhaul, Test &
Enclosure Mods to
3rd Party Generator
Drop in
Replacement
Compressor Drive
Upgraded Drop
in Seawater
Injection Drives
RCA on
Bearing
Failures

Additional Material
About Us Services New Machines Case Studies
Dedicated to
Supplying Superior
Quality Products &
Services
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
 Clyde Blowers Capital is a private equity
company specialising in engineering
businesses with a current portfolio
including companies manufacturing
gears, motors, pumps, hydraulic
components and soot blowing equipment
 Managed by a team of 26 based in
Glasgow, Beijing and Zurich
 Currently managing 8 platform
investments
 Specialises in sustainable growth for high
potential business with operational
support to extend their offering, improve
their processes and extend global reach
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
 Parsons Peebles has the largest installed base of any
manufacturer in the North Sea
 We are experienced in managing quick turnarounds and working
to offshore requirements and certification
 Our site personnel are qualified for working offshore and we
specialise in in-situ work such as rewind, refurbishment and
recertification
 When required or for more extensive work we can return
equipment to our Rosyth facility
 At Rosyth we can provide the peace of mind of full load testing
to ensure all electrical equipment performs as expected on
return to asset
 Customers we have a proven pedigree with include all the oil
majors - Nexen, Chevron, Shell, BP, Total etc.
Parsons Peebles Installation
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
Induction Motors & Generators
Parsons Peebles can test induction motors at 50 or 60 Hertz
to BS EN/IEC60034 with ratings up to 15,000 kW. Testing to
IEEE (USA) requirements can also be undertaken.
 No load losses and magnetisation characteristic.
 Temperature rise using direct loading via the differential
gearbox, the superposition method or by C. V. F. (continuously
varied frequency, known as Primary Superposed Frequency in
the USA).
 Direct on line starting capability at both 50 and 60 Hz within the
capability of Peebles test 40 MVA generator.
 Locked rotor tests and starting torque measurement. This is
limited to 2000 kW of losses (mostly rotor loss) in the motor
under test, by the power that can be provided by the 40 MVA
generator set.
 Vibration measurement, recording and analysis, using the Bently
Nevada ADRE equipment, and balancing on rotor end planes.
The output can be downloaded onto disc for further analysis
 Winding HV testing up to 33 kV with 100 kVA capacity
 Purging and pressurising certification testing of Ex p machines
for hazardous areas
 Noise testing
Synchronous Motors & Generators
We can test synchronous motors and generators at 50 or 60
Hertz with ratings up to 40 MVA but there is no firm cut-off
point. Testing is limited by the generating capacity on the site.
 By using open circuit and short circuit heat runs machines up to
100 MVA can be tested
 Open and short circuit loss characteristics would be established
 Heat runs can be carried out at rated excitation, zero power
factor up to 35 MVA. For all ratings the heat runs can be
performed utilising short circuit, open circuit and unexcited runs
 Sudden three phase short circuit tests, time constants and
reactances
 Negative and zero sequence reactances can be measured
 Overspeed tests can be carried out on all but 2 pole generators
 Vibration measurement, recording and analysis, using the Bently
Nevada ADRE equipment, and balancing on rotor end planes. The
output can be downloaded onto disc for further analysis
 Winding and sample coil HV testing up to 33 kV with 100 kVA
capacity
 All rigid shaft generator rotors would be balanced in their own
bearings. In addition we can trim balance two pole flexible rotors
utilising accessible balancing planes
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
 Shaft centre line –
match to existing
 Holding down bolts,
jacking, dowelling etc
 Oil pipes - flexible
 Main terminal box
designed for “plug &
play”
 Terminal
configuration &
position, gland plate
position - all to
match existing
 Cooler Pipes –
same position
 Auxiliary Terminal boxes –
same position
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
 With conventional cage rotors, bar fracture usually
occurs either just inside or just outside the slot.
 The fracturing appears to be due not so much to the
severity of duty or presence of vibration but to excessive
looseness of the bar in its slot
 Parsons Peebles design ensures and extremely tight and
permanent fit resulting in lack of failure and increased
machine availability
 Other design features include:
- Much better bar-to-core heat transfer resulting in less bar
temperature rise and reduction in thermally induced
mechanical stresses
- Careful consideration to thermal and mechanical aspects
of the short-circuit rings to reduce failure
- Design of cage rotor to reduced externally-induced
vibration
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
Advantages of Resin Rich
 Rigid resins are used in slot cell section of the coil and
different resins with resilience to coil movement are used in
the endwinding i.e. resin containing flexibilisers
 Capability to control Pd in the slot and remedial action in
service is practical during insulation system life
 Insulation resistance will be good when insulation system
fully cured
 Partial repairs are practical - i.e. coils which have failed can
be replaced particularly when stator wound with half bars
 Any machine can be rewound with resin rich insulation
system wither in works or on site
 Endwinding bracing systems can be improved & made more
robust to meet operational requirements
Advantages of VPI
 Lower manufacturing & winding costs
 No scarf joint at end of coil slot straight
 Straight length can be reduced
 Voids reduced in winding
 Homogeneous insulation & bracing
 Gives good insulation resistance
 Resistant to moisture &chemicals
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
Disadvantages of Resin Rich
 More expensive than VPI
 Endwinding can contain voids, but since the endwinding
surface becomes charged to coil voltage, breakdown of
internal voids is not a problem other than at the first bend
under the stress grading tape
 Endwinding insulation and blocking is not a homogeneous
system therefore more dependant on competence of
winders
 Resin rich coils in the endwinding can be more prone to
chemical attack than VPI windings. However when a
problem like this has been identified it is possible to spray
the endwinding with a 2 part epoxy resin coating
 Resin rich windings need to be coated with either a
polyester varnish or epoxy resin to provide a smooth
surface finish
Disadvantages of VPI
 As VPI is used on larger and larger machines (i.e. up to 500MW) the VPI
impregnation process introduces new problems during the life of the winding
 Due to differential expansion between individual stator bars the coil to coil
bracing in the endwinding results in loosening of the bracing between coils
which will requiring regular rectification during the life of the machine
 There are a range of resins used in the VPI process The lower viscosity resins
used by manufactures are difficult to maintain and need a high resin turnover
 Retaining resin in the stator winding during curing generally requires stator
rotation during the curing process, which is easier for manufacturers who wind
a stator core pack before inserting the cured stator core pack into the stator
case
 Will not fill voids greater than 1mm in width
 The much more stable higher viscosity resins used in the VPI process by repair
companies can cope with the sporadic usage which occurs in a repair facility
 However because of the higher viscosity these types of resin have limitations
on the voltage since the resin will not penetrate through more that 6 half lap
layers of insulation limiting it to 8kV windings or 13.8kV endwindings of a
hybrid winding
 The much more stable higher viscosity resins used in the VPI process by repair
companies can cope with the sporadic usage which occurs in a repair facility
 However because of the higher viscosity these types of resin have limitations
on the voltage since the resin will not penetrate through more that 6 half lap
layers of insulation limiting it to 8kV windings or 13.8kV endwindings of a
hybrid winding
Conclusion:
Parsons Peebles recommend resin rich for
new machines but offer repair services and
replacement coils for both types
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials

Additional Material
About Clyde
Blowers
Capital
UK North
Sea
Experience
Detailed Motor &
Generator Test
Capability
Keyed-Bar Cage
Rotor
Construction
Matching
Existing
Interfaces
Resin Rich
vs
VPI
Customer
Testim-
onials
 Parsons Peebles pride ourselves on customer satisfaction – here are a few of our satisfied oil &
gas customers
"I just can't say a big enough thanks for the support provided to me during my time
on Bruce”
- Humberto Carillo, BP
“… just want to thank you and your team for your support thus far. Clearly this is a big
challenge for us and so your prompt and timely response to questions, provision of
labour, procedures and materials is much appreciated. Please pass on my
appreciation to your team and broader organisation.”
- Jim Aston, Britannia Operator
“Many thanks for all your assistance.”
- Neil Atkinson, Wood Group PSN

Oil & gas interactive presentation v1, 6th july 2015

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