A plant (1) for the treatment of a multiphasic fluid and method for line-characterization of the fluid wherein the plant (1) comprises a circuit (4) within which the fluid is intended to circulate and being characterized in that it comprises a characterization tool (3) comprising at least an analysis settler (6) adapted to separate the phases to obtain so-called separated phases and a means (9) for combining the separated phases. The plant (1) is designed so that a fraction of the fluid circulating within the circuit (4) circulates within the tool (3) to pass through the analysis settler (6) so that the phases of the fluid are separated then discharged into the circuit (4). The combining means (9) is designed so as to combine the separated phases.

An apparatus may have a first reflector and a second reflector positioned on either side of a sample volume for a gas sample. The configuration of the first reflector may be variable between at least first and second configurations, wherein each of the first and second configurations is arranged such that a beam of optical radiation from an optical beam origin is directed to a detector location via the sample volume. In the second configuration the beam of optical radiation is reflected at least once from each of the first and second reflectors and the path length of the beam of optical radiation through the sample volume is greater than in the first configuration.

A process which comprises (a) injecting stripping gas into the fluid flow, (b) taking a sample from the stripping gas containing fluid obtained in step (a) at a point downstream of the injection of the stripping gas, and (c) analyzing the sample taken in step (b).

The present invention is a diagnosis method for internal fault of an oil-immersed electric apparatus using a silicone oil as an insulating oil. The method diagnoses an internal fault of the oil-immersed electric apparatus based on a first concentration ratio that is a concentration ratio between two gases selected from an analysis gas group consisting of hydrogen gas, methane gas, ethane gas, and ethylene gas contained in the, silicone oil, and a second concentration ratio that is a concentration ratio between the other two gases selected from the analysis gas group. A combination of the two gases and a combination of the other two gases are a combination of ethylene gas and hydrogen gas, a combination of ethane gas and hydrogen gas, a combination of ethylene gas and methane gas, or a combination of methane gas and ethane gas.

The present invention couples a housing including a gas separation membrane to a sensor unit capable of detecting the concentration of hydrogen gas such that liquid cannot permeate a closed space within the housing and only hydrogen gas dissolved in the liquid can permeate the closed space through the gas separation membrane, and detachably couples such a hydrogen sensor element to an opening of a container in which the liquid is held. Accordingly, the present invention can measure the concentration of dissolved hydrogen gas in a simple manner.

A plant (1) for the treatment of a multiphasic fluid and method for line-characterization of the fluid wherein the plant (1) comprises a circuit (4) within which the fluid is intended to circulate and being characterized in that it comprises a characterization tool (3) comprising at least an analysis settler (6) adapted to separate the phases to obtain so-called separated phases and a means (9) for combining the separated phases. The plant (1) is designed so that a fraction of the fluid circulating within the circuit (4) circulates within the tool (3) to pass through the analysis settler (6) so that the phases of the fluid are separated then discharged into the circuit (4). The combining means (9) is designed so as to combine the separated phases.

A monitoring system for a piece of electrical equipment having components immersed in electrical insulating liquid, associated methods and uses thereof are described. The monitoring system includes alert threshold determination capabilities. The monitoring system may comprise: an analysis system configured for obtaining measurements conveying concentrations of dissolved molecular species in the electrical insulating liquid; and a processing system programmed for: processing the measurements conveying concentrations of dissolved molecular species and one or more alert thresholds to determine if a predetermined condition corresponding to the one or more alert thresholds is met; causing an alert event in response to the predetermined condition being met; and performing a threshold adjustment determination process to derive new values for the one or more alert thresholds at least in part by processing historical measurements of concentrations of dissolved molecular species. Alternate embodiments may make use of an artificial intelligence engine trained using historical concentration measurements to process the measurements conveying concentrations of dissolved molecular species to adjust alarm thresholds.

The present application provides a method for performing data analytics in hybrid systems. The method may involve: determining a quantum of historical data associated with a machine learning model; determining an order associated with the machine learning model; determining whether a latency associated with the machine learning model is critical; selecting a server from a plurality of servers based at least in part on the quantum of historical data, the order, and the latency; and training the machine learning model using the server. The method may further involve: determining, using the machine learning model, a condition deterioration associated with a power transformer system.

An optical sensing system for sensing hydrogen in a fluid comprising a first optical sensor comprising a first optical fiber, wherein an end portion of the first optical fiber is coated with a first hydrogen-sensitive multilayer on an end surface perpendicular to a longitudinal axis of the first optical fiber, the first multilayer being adapted to change its optical properties dependent on a hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known first characteristic; a second optical sensor comprising a second optical fiber, wherein an end portion of the second optical fiber is coated with a second hydrogen-sensitive multilayer on an end surface perpendicular to the longitudinal axis of the second optical fiber, the second multilayer being adapted to change its optical properties dependent on the hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known second characteristic which is different from the first characteristic; at least one light source adapted for coupling light into the first optical fiber and the second optical fiber, at least one light detector adapted for detecting light reflected by the first and second multilayer, a control unit adapted for calculating the hydrogen partial pressure in the fluid by using the first characteristic and the second characteristic and an output signal of the at least one light detector.

A gas analysis system for analyzing dissolved gas in electrical insulating fluid includes a trap that selectively captures or releases one or more gases, a temperature control device for controlling a temperature of the trap that determining whether the trap is in a gas capture mode or a gas release mode, and a gas sensor for analyzing the gas that was not selectively captured by the trap. The trap may be heated to a first temperature that enables the gas to be adsorbed by the trap, and the trap may be heated to a second temperature that enables the gas to be desorbed by the trap. The gas analysis system may further include a gas flow diverter for directing gas flow past the trap. The captured or released gases may be interfering matrix gases. A method and analyzer for analyzing dissolved gas in an electrical insulating fluid are also disclosed.