The HYDROCAL 1001+ is a permanently installed composite gas-in-oil sensor for the analysis of the following dissolved key fault gases (TDCG = Total Dissolved Combustible Gases):

Fault Gas TDCG Contribution
Hydrogen (H2) approx. 20 %
Carbon Monoxide (CO) approx. 30 %
Methane (CH4) < 5 %
Acetylene (C2H2) 100 %
Ethylene (C2H4) approx. 32 %
Ethane (C2H6) < 5 %

To provide an even more comprehensive transformer monitoring solution, the HYDROCAL 1001+ analyses additionally the content of moisture (H2O) in the transformer oil.

The integration of 6 relevant key gases into a total weighted gas concentration and the measurement of Moisture in oil enables the HYDROCAL 1001+ to react to most transformer faults and makes the device to a compact and cost-effective tool used for early transformer fault detection and preventative maintenance.

The HYDROCAL 1001+ is equipped with 2 Analogue 0/4 … 20 mA outputs for the dissolved composite gas-in-oil and moisture in oil analysis results and 4 digital relay outputs (Hi-alarm, Hi-Hi-alarm, moisture-alarm and system function alarm).

For more information please refer to the HYDROCAL 1001+ data sheet. If you have any further questions or would like a quotation please contact our sales team.