Abstract:
The present invention refers to a system and method for monitoring and controlling the operational condition of a power transformer. The system for monitoring and controlling the operational condition of a power transformer comprised at different substations comprises a plurality of substations, each substation comprising a control panel linked to at least one power transformer, said control panel receives data referring to the measurements of parameters of said at least one transformer, and a monitoring center comprising an engineering server, an internet server and software that does the communication of said engineering server to said internet server, said engineering server being in communication with control panels of each of the substations and said internet server provides remote access to the system to the users of the system. The method of the present invention comprises the steps of (a) continuously measuring parameters of a plurality of power transformers comprised at a plurality of substations; and (b) storing the data referring to the measurements performed in step (a) at a database only when said measurements are not within a range of values that were previously determined as desirable for the measurements of said parameters; and (c) making the measurements of the parameters performed in step (a) available at one single physical location. The invention further provides a monitoring center that allows the follow up of the condition of operation of several power transformers located at several substations.
Abstract:
The present invention refers to a system and method for monitoring and controlling the operational condition of a power transformer. The system for monitoring and controlling the operational condition of a power transformer comprised in a single substation comprising acontrol and data processing station linked to the transformers containing detection devices of the indicative signals of the measurements of parameters of the transformer; the signals being continuously detected by said devices; a user interface linked to said control station, the interface allowing a user to follow the measurements of the parameters of the transformer and determine ranges of desirable values of said parameters, said control station comprises a database that stores the data referring to the indicative signals of the measurements of the parameters of the transformer only when the measurements of the parameters differ from a range of parameters values previously defined as desirable. The method of the present invention comprises the steps of (a) continuously measuring parameters of a power transformer; and (b) storing the data referring to the measurements performed in step (a) only when said measurements are not within a range of previously determined as desirable for the measurements of said parameters.
Abstract:
The present invention refers to a system for regulating a load voltage (C) in power distribution circuits comprising at least: a regulation transformer (2) the secondary winding of the regulatory transformer (2) being operatively arranged in series between a power source (F) and the load (C), the power source (F) being capable of providing a supply voltage (VAL) to the load (C); a measuring device (5) operatively associated to the load (C), the measuring device (5) being capable of measuring at least one value of an electric signal of the load (SCA); a control device (4) operatively associated to the measuring device (5), the control device (4) being capable of comparing the value of the electric signal of the load (SCA) with a pre-established reference value and providing a correcting electric signal (SCO); and an actuation device (3) operatively associated to the control device (4), wherein the actuation device (3) is capable of providing an adjustment voltage (VAJ) proportional to the correcting electric signal (SCO), the adjustment voltage (VAJ) being applicable to fixed electric taps of the primary winding of the regulation transformer (2), the fixed electric taps being configured to remain immovable when there is a variation of the adjustment voltage (VAJ), the regulation transformer (2) being capable of transforming the adjustment voltage (VAJ) into a regulation voltage (VRE), the regulation voltage (VRE) being added in module and phase to the supply voltage (VAL). The present invention also refers to a method executed by the above-mentioned system.
Abstract:
The present invention refers to a system for regulating a load voltage (C) in power distribution circuits comprising at least: a regulation transformer (2) operatively arranged in series between a power source (F) and the load (C), the power source (F) being capable of providing a supply voltage (VAL) to the load (C); a measuring device (5) operatively associated to the load (C), the measuring device (5) being capable of measuring at least one value of an electric signal of the load (SCA); a control device (4) operatively associated to the measuring device (5), the control device (4) being capable of comparing the value of the electric signal of the load (SCA) with a pre-established reference value and providing a correcting electric signal (SCO); and an actuation device (3) operatively associated to the control device (4), wherein the actuation device (3) is capable of providing an adjustment voltage (VAJ) proportional to the correcting electric signal (SCO), the adjustment voltage (VAJ) being applicable to fixed electric taps of the primary winding of the regulation transformer (2), the fixed electric taps being configured to remain immovable when there is a variation of the adjustment voltage (VAJ), the regulation transformer (2) being capable of transforming the adjustment voltage (VAJ) into a regulation voltage (VRE), the regulation voltage (VRE) being added in module and phase to the supply voltage (VAL). The present invention also refers to a method executed by the above-mentioned system.