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Ian Sulek

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Ian Sulek is a power industry solutions consultant, electrical engineer and product specialist at Insulect, supporting customers with technical expertise and tailored solutions for power generation, transmission and distribution.

Blog Post by Ian Sulek

3 min read

HV Switchgear Options for Australian Renewable Energy Projects

High voltage (HV) switchgear options supporting Australian renewable generation connections, ranging from commercial solar and battery ...
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2 min read

What HV substation insulators do heavy industry sites typically use?

Heavy industry sites typically utilize high-voltage substation insulators designed to withstand demanding conditions, including high ...
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3 min read

Choosing HV Switchgear for Easier Maintenance in Australian Utilities

When selecting high voltage (HV) switchgear for maintenance accessibility, Australian utilities must balance strict safety requirements, ...
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2 min read

Are Midel fluids compatible with all transformer materials?

ANSWER: As a rule, components and materials used in mineral oil transformers are also compatible with MIDEL fluids. Midel Compatible ...
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1 min read

How to Recondition High‑Acid MIDEL Ester Fluids

ANSWER: Mineral oil: aging by-products are short chain acids, water soluble can catalyse paper degradation. MIDEL fluids: aging by-products ...
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2 min read

Does Switching to Ester Fluid Cause Transformer De‑rating?

ANSWER: Distribution transformers: unlikely Power transformers: an assessment may be required Transformer rating after retrofilling with ...
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Can I use Midel ester fluids in free breathing transformers?

ANSWER: There are a range of MIDEL fluids to suit all types of transformer preservation systems. For breathing transformers, we recommend ...
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How do I use dissolved gas analysis (DGA) with Midel ester fluids?

ANSWER: Using much the same oil sampling and analysis methods you would use for mineral oil. The gasses esters produce during electrical ...
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How do Midel ester transformers fluids perform in the cold?

ANSWER: There are a range of MIDEL fluids to suit various climatic conditions. The performance of each fluid under cold climate conditions ...
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2 min read

Requirements for retrofilling transformers with MIDEL fluids?

ANSWER: There are four main steps to follow to retrofill transformers with ester fluids, as follows: 1. Set up retrofilling plant Follow ...
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