60 | September 2025 | www.industrialoutlook.in
G A
UEST RTICLE
Mr. . Vikramjeet Dhingra
Head of Sales
WIKA India
The reliability and efficiency of
contemporary high-voltage power
grids require technical solutions
that maintain system integrity while
adhering to environmental and
regulatory standards. WIKA
ad-
dresses these requirements through
a comprehensive suite of solutions
centred on the management of SF6,
a critical insulating and arc-extin-
guishing gas. Integrated approaches
to
monitoring,
leak
detection,
handling, recovery, and analysis
ensure that grids operate safely,
emissions
are
minimised,
and
performance
remains
consistent
across complex transmission infra-
structures.
Continuous Monitoring of Gas
Levels
Permanent monitoring of SF6 levels
is essential to prevent both opera-
tional interruptions and environ-
mental repercussions. Density mon-
itors such as the GDM-RC-100
provide real-time measurement of
gas volumes within switchgear
compartments, while the GDHT-20
transmitter records both gas density
and
humidity.
Using
advanced
evaluation algorithms, these
sys-
tems can deliver precise leakage
forecasts. Early identification of
potential issues allows network
operators to take corrective action
efficiently, mitigating risks and
maintaining compliance with inter-
national standards. WIKA’s exper-
tise ensures that these instruments
are
integrated
seamlessly
into
high-voltage infrastructure.
Temporary Monitoring Solutions
Post-maintenance or new installa-
tions require short-term assessment
of SF6 systems to verify integrity
and performance. The GDI-100-D
precision digital density indicator
enables temporary monitoring, log-
ging of density data continuously
over defined periods. Its Bluetooth
connectivity permits rapid data
retrieval for evaluation, allowing
operators
to
adjust
operational
measures as required. Temporary
monitoring complements permanent
systems by providing insights into
specific events or conditions. These
targeted assessments ensure that
any anomalies are identified early,
supporting uninterrupted grid oper-
ations.
Detection and Localisation of
Leaks
Accurate identification and locali-
sation of SF6 leaks are critical to
minimise environmental impact and
operational disruptions. Instruments
such as the GIR-10, utilising
Non-Dispersive Infrared (NDIR)
technology, can detect minor leaks
even under challenging conditions.
By pinpointing the source of emis-
sions, maintenance teams can focus
corrective measures precisely where
they are required. WIKA provides
the expertise to integrate such detec-
tion systems effectively, ensuring
that high-voltage networks remain
both reliable and compliant with
environmental requirements.
Safe Handling and Gas Recovery
The controlled handling of SF6
during filling, evacuation, and re-
covery is a core component of opera-
tional safety. Equipment such as the
GPU-10 platform offers mobile and
modular operation, while the
G-
PU-S-3000 series, equipped with
SIL2 safety controls, is designed for
high-capacity installations requiring
additional operational safeguards.
These platforms facilitate efficient
gas transfer, filtration, and recovery
processes, reducing the potential for
emissions and supporting consistent
system performance. WIKA’s expe-
rience in integrating these service
solutions ensures that maintenance
procedures are executed safely and
efficiently.
Quality Analysis of SF6
Maintaining the quality of SF6 is
fundamental
to
preserving
the
dielectric properties and operational
reliability of high-voltage equip-
ment. Analytical instruments,
in-
cluding the GA11 device, allow
precise measurement of moisture
content, contaminants, and overall
gas purity. Continuous evaluation
enables operators to detect potential
degradation before it impacts perfor-
mance. WIKA provides guidance on
applying
these
analytical
tools
within operational protocols, ensur
POWER GRID SOLUTIONS: MANAGING SF6 IN
HIGH-VOLTAGE NETWORKS