Instrument Transformers by RS ISOLSEC
"measuring with class"

Specialists in tailor-made instrument transformers since 1954, RS ISOLSEC offer an extensive product range: manufacture and supply of instrument transformers, current transformers (CT's), voltage transformers (VT's and PT's), protection transformers, measuring transformers, potential transformers, Rogowski coils, current and voltage sensors, insulating parts in cast resin for low voltage (LV), medium voltage (MV), and high voltage (HV) applications.

We develop customized solutions to meet customer specifications in markets including power generation, electricity transportation, electricity distribution, industry, and severe environments (railways, marine, mines).

Our instrument transformers applications encompass energy, industrial or tariff metering, protection against overcurrent, earth fault protection, and measure of homopolar currents.

Our fields of expertise include scaling high currents and voltages (up to 60,000A / 52kV) down to small currents and voltages (down to several mA / mV). Our instrument transformers are designed to cope with outdoor or indoor conditions, as well as with harsh conditions caused by the presence of humidity, fuel, salt, oil, sun, water, heat, cold, air acidity, vibrations, mechanical shocks, and electrically disrupted signals.



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