IEEE PES T&D Conference & Exposition 2022 - 86

figure 3. Fleet-view of grid asset risk indices.
connected. Since both systems
provide much-needed asset and
performance management data,
bringing them together provides
a more comprehensive view of
the transformer's overall health
as shown in the Figure 4. This
integrated approach of combining
two systems (a protection relay
with electrical functions and a dissolved
gas analyzer with chemical
analysis) allows tracking of trending
incipient fault events with the
same timestamps, a correlation
between the electrical and chemical
models, and integrated asset
health analysis and reporting.
With deep equipment design
expertise, proactive functions are
Figure 4 presents integrated condition monitoring of the
transformer using protection relay and dissolved gas analyzer
data. Traditionally, a transformer protection relay is connected
to current and voltage transformers to obtain the currents and
voltages needed to detect electrical faults. It is interfaced with
circuit breakers for control actions. In addition, dissolved gas
analyzer devices connected to a transformer can draw oil samples
regularly and perform continuous chemical analysis.
In the past, these two distinct systems (electrical protection
and chemical monitoring) have not been interdesigned
to continuously perform online equipment condition
monitoring in combination with protection and control
measurements of the equipment to be protected. Proactive
functions take a holistic approach to the equipment to
be protected, capturing the entire evolution of a potential
failure, including:
✔ detecting an anomaly or degradation of a subcomponent
of the asset,
✔ alarming the condition, and
✔ recording and logging the signals and evolving changes.
Transformer Protection and Control + Monitoring and Diagnostics
Data Stream
Power Factor and Capacitance
1) Electrical
2) Mechanical
3) Thermal
4) Chemical
Perception Fleet
Kelman DGA
900 Plus
DGA Sample
Thermal Measurements
Internal Fault
DGA Request*
SCADA\
EMS
etc
Trip Event
Load Data, Trip Data, etc....
845
* When Protection and Monitoring Reside on OT Network
figure 4. Holistic electrical, chemical, and thermal models for transformer monitoring and diagnostics.
86
ieee power & energy magazine
April 2022 Show Issue

IEEE PES T&D Conference & Exposition 2022

Table of Contents for the Digital Edition of IEEE PES T&D Conference & Exposition 2022

Contents
IEEE PES T&D Conference & Exposition 2022 - Intro
IEEE PES T&D Conference & Exposition 2022 - Cover1
IEEE PES T&D Conference & Exposition 2022 - Cover2
IEEE PES T&D Conference & Exposition 2022 - Contents
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IEEE PES T&D Conference & Exposition 2022 - Cover3
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