GE Aftermarket Catalog

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Services and Spare Parts7
Aftermarket Catalog 7-5
Prices and data subject
to change without notice
Services and Spare Parts
Transformer Substation Services
Overview
Today’s demands on power substations are greater than ever
before, challenging operators to maintain a continuous, reliable
power supply and reduce costs. A rigorous, proactive mainte-
nance program is the key to minimizing transformer failures
and unplanned outages.
GE Energy’s experienced
transformer services team
can help you develop and
implement an effective trans-
former maintenance plan while
making the most efficient use
of your budget. Whether you
need a day of service on a single
unit, or comprehensive plan for
your entire transformer network,
GE Energy can:
• Evaluate the condition of your equipment and status of exist-
ing maintenance programs
• Structure a maintenance plan to balance your needs with
your budget
• Plan the required services according to your schedule
• Perform the required work – on time, on budget
With decades of experience servicing transformers at customer
sites, GE Energy has the resources to meet your substation needs.
Dielectric Fluid Services
Annual dielectric fluid analysis is the single most important ele-
ment of an effective transformer maintenance plan. Routine test-
ing and appropriate corrective treatments minimize the damage
to internal components, reduce the risk of an unplanned outage,
and dramatically increase the life expectancy of the unit. Test
results can also be used to assess the mechanical condition of the
transformer and indicate specific repairs which may be required.
GE Energy offers comprehensive dielectric fluid services to detect
fluid degradation in its early stages and provide customized pre-
ventive maintenance solutions, including:
• Oil sample collection and laboratory testing
• Dehydration services - on energized or de-energized
equipment
— Standard multi-pass dehydration
— Vacuum dehydration with cryogenic pump (cold trap)
moisture collection services
— In-shop “oven bake” and vacuum chamber dehydration
• Degasification services
• Complete reclamation of fluid, including flushing
of the core and coil
• Special fluids services
— Silicone
— RTemp
— FR3
Fluid services projects can be managed by GE, or you can lease
our crews and equipment for in-house project management.
Mechanical Services
Our experienced technicians can also assist with mechanical
maintenance requirements, including:
• Installation, assembly and fill of new transformers
• Complete repairs
— Bushing replacements
— Regasketing
• Exterior restoration
Load Tap Changer (LTC) Maintenance
For units with LTCs, the LTC is a key component and, without
proper maintenance, can be a leading cause of failure. GE Energy
can evaluate the condition of your LTC by sampling oil from the
energized transformer. Test results indicate what type of mainte-
nance needs to be performed offline, minimizing down-time.
Our services include:
• Complete internal inspection and contact or interrupter
replacement
• Maintenance to original equipment manufacturer (OEM)
specifications
• Rebuild and repair
• Validation of alarms and protective devices
• Upgrade obsolete electro-mechanical controls with modern
solid state controls
• Long-term maintenance programs to maximize the reliability
of your LTC