Linearity tester for Voltage Regulator Adjustment of electric generator

Abstract

A linearity tester for a voltage regulation circuit of an electric generator according to one embodiment of the present invention comprises: a terminal portion connected to a voltage regulation circuit of an electric generator to be tested; a voltage supply unit that receives power from a voltage regulation circuit connected to the terminal portion, converts it to a voltage of a preset intensity, and supplies the power converted to a voltage of a preset intensity to an internal unit; a variable resistor provided internally; a current supply unit that receives power converted to a voltage of a preset intensity from the voltage supply unit, converts the current intensity of the supplied power to a preset intensity, and supplies the power converted to a current of a preset intensity to a variable resistor; and a linearity waveform measuring unit that measures the linearity waveform of an output voltage formed by the current supplied to the variable resistor.

Description

Technology Field

[0001] The present invention relates to a tester for a voltage regulation circuit, and more specifically, to a linearity tester for a voltage regulator adjustment circuit of an electric generator. Background Technology

[0003] Two MG-SETs are installed to supply power to the reactor control rod control system (CEDMCS) of a nuclear power plant, and during normal operation, the two units operate in parallel so that each MG-SET shares 50% of the load, and when one unit is stopped, the remaining motor generator takes on 100% of the load.

[0004] In the case of the voltage regulator adjustment circuit of such an MG set, during inspection Since multiple tasks are performed simultaneously in a confined space, many preparations such as voltage supplies, current supplies, and test switch equipment are required. In the linearity test process, wiring is first done on the terminal block to perform the rising test, and once the rising test is completed, wiring is done for the falling test after stopping. Because the linearity test is performed in this manner, the criteria for determining the continuity waveform become ambiguous, which has the disadvantage of reducing the accuracy of the judgment regarding the linearity soundness of the voltage regulation circuit.

[0005] delete Prior art literature

[65535] Korean Registered Patent No. 10-0449425 (Title of Invention: Automatic Voltage Regulator Dynamic Characteristics Test Device) Korean Registered Patent No. 10-0317985 (Title of Invention: Automatic Voltage Regulator Load Test Device and Method Thereof) The problem to be solved

[0006] The present invention has been devised to solve the above-mentioned problems, and the objective of the present invention is to provide a linearity tester for a voltage regulation circuit of an electric generator that can continuously perform rising and falling tests during a linearity test for a voltage regulation circuit of an electric generator using a single device equipped with a power supply means, a current supply means, and a selection switch. means of solving the problem

[0008] A linearity tester for a voltage regulation circuit of an electric generator according to an embodiment of the present invention for achieving the above objective comprises: a terminal portion connected to a voltage regulation circuit of an electric generator to be tested; a voltage supply unit that receives power from a voltage regulation circuit connected to the terminal portion, converts it into a voltage of a preset intensity, and supplies the power converted into a voltage of a preset intensity to the inside; a variable resistor provided inside; a current supply unit that receives power converted into a voltage of a preset intensity from the voltage supply unit, converts the current intensity of the supplied power into a preset intensity, and supplies the power converted into a current of a preset intensity to the variable resistor; and a linearity waveform measuring unit that measures the linearity waveform of an output voltage formed by the current supplied to the variable resistor.

[0009] And, according to the present embodiment, the linearity tester for a voltage adjustment circuit of an electric generator may further include a selection switch provided to adjust the resistance value of a variable resistor so that continuous linearity testing can be performed by adjusting the output voltage.

[0010] In addition, the terminal section may be provided with a banana jack type connection terminal.

[0011] And when 220Vac power is supplied from the voltage regulating circuit, the voltage supply can convert the supplied 220Vac power into 120Vac power and supply it internally.

[0012] In addition, the current supply can supply a current of 4 mA to 20 mA of current from the supplied power source to the variable resistor.

[0013] Meanwhile, according to another embodiment of the present invention, a linearity tester for a voltage adjustment circuit of an electric generator comprises: a voltage supplyer that receives power from a voltage adjustment circuit, converts it into a voltage of a preset intensity, and supplies the power converted into a voltage of a preset intensity to an internal unit; a variable resistor provided internally; a current supplyer that receives power converted into a voltage of a preset intensity from the voltage supplyer, converts the current intensity of the supplied power into a preset intensity, and supplies the power converted into a current of a preset intensity to the variable resistor; a selection switch provided to adjust the resistance value of the variable resistor so that continuous linearity testing can be performed by adjusting the output voltage; and a linearity waveform measuring unit that measures the linearity waveform of the output voltage formed by the current supplied to the variable resistor. Effects of the invention

[0015] As described above, according to the embodiments of the present invention, a rising test and a falling test can be continuously performed during a linearity test for a voltage regulation circuit of an electric generator using a single device equipped with a power supply means, a current supply means, and a selection switch, thereby preventing the problem of reduced accuracy in judging the linearity soundness of the voltage regulation circuit due to ambiguous criteria for determining the continuity waveform. Brief explanation of the drawing

[0017] FIG. 1 is a drawing provided for the description of the configuration of a linearity tester for a voltage regulation circuit of an electric generator according to one embodiment of the present invention, and FIG. 2 is a drawing illustrating the appearance of an enclosure according to one embodiment of the present invention. Specific details for implementing the invention

[0018] The present invention will be described in more detail below with reference to the drawings. To clearly explain the invention, parts unrelated to the description have been omitted from the drawings, and in the drawings, the width, length, thickness, etc., of the components may be exaggerated for convenience.

[0019] FIG. 1 is a drawing provided for the description of the configuration of a linearity tester for a voltage adjustment circuit of an electric generator according to one embodiment of the present invention, and FIG. 2 is a drawing illustrating the appearance of an enclosure according to one embodiment of the present invention.

[0020] When inspecting the voltage regulator adjustment circuit of a motor generator set (MG Set), various tasks such as disassembling and inspecting the MG Set and inspecting the instrumentation and control unit are performed simultaneously in a confined space. To do this, there is the inconvenience of having to prepare many supplies, such as voltage supplies, current supplies, and test switch equipment.

[0021] In addition, if the linearity irregular waveform of the voltage regulator adjustment circuit of such motor generator sets (MG Set) is overlooked, reactor maintenance problems or turbine problems may occur due to control rod drop caused by the loss of control rod power resulting from MG-SET failure, so it is necessary to actively eliminate the factors causing unexpected shutdowns.

[0022] The linearity tester for the voltage adjustment circuit of an electric generator according to the present embodiment can continuously perform a rising test and a falling test when testing the linearity of the voltage adjustment circuit of an electric generator with one device equipped with a power supply means, a current supply means, and a selection switch (160).

[0023] To this end, a linearity tester for a voltage adjustment circuit of an electric generator may include a terminal section (110), a voltage supply (120), a current supply (130), a variable resistor (140), a linearity waveform measuring section (150), a selection switch (160), and an enclosure (170).

[0024] The terminal portion (110) is provided on one side of the enclosure (170) and can be connected to the voltage adjustment circuit of the electric generator to be tested.

[0025] For example, the terminal section (110) is equipped with a banana jack type connection terminal and can be connected to the voltage adjustment circuit of the electric generator to be tested.

[0026] Here, a banana jack type connection terminal can be connected to a terminal block of a 1POT card equipped with a voltage regulating circuit.

[0027] In addition, the terminal section (110) may include a Lower terminal, a Raise terminal, a com terminal, a (+) current terminal, a (-) current terminal, etc.

[0028] A voltage supply unit (120) is provided to convert the supplied power into a voltage of a preset strength and supply it internally (e.g., a current supply unit (130)).

[0029] For example, when the voltage supply unit (120) receives power from a voltage adjustment circuit connected to the terminal unit (110), it converts the power to a voltage of a preset strength (control power) through a voltage transformer provided internally, and can supply the power converted to a voltage of a preset strength to an internal unit (e.g., current supply unit (130), etc.).

[0030] Specifically, for example, when 220 Vac power is supplied from a voltage adjustment circuit, the voltage supply unit (120) can convert the supplied 220 Vac power into 120 Vac control power and supply it internally (e.g., current supply unit (130)).

[0031] A current supply unit (130) is provided to convert the supplied control power into a current of preset strength and supply it to a variable resistor (140).

[0032] For example, the current supply unit (130) receives power converted to a control voltage of a preset intensity from the voltage supply unit (120), converts the current intensity of the supplied power to a preset intensity, and supplies the power converted to a current of a preset intensity to the variable resistor (140).

[0033] Specifically, for example, the current supply unit (130) can supply a current of 4 mA to 20 mA of the supplied 120 Vac power to the variable resistor (140).

[0034] The linearity waveform measuring unit (150) can measure the linearity waveform of the output voltage formed by the current supplied to the variable resistor (140).

[0035] For example, the linearity waveform measuring unit (150) is implemented as a waveform measuring device such as a memory highcoder and can measure the linearity waveform of the output voltage formed by the current supplied to the variable resistor (140).

[0036] The selection switch (160) can adjust the resistance value of the variable resistor (140) to enable operation for a rising test or a falling test, or to enable continuous linearity testing by adjusting the output voltage.

[0037] Specifically, the selection switch (160) may include a first selection switch (161) that enables operation for a rising test or a falling test, and a second selection switch (162) that adjusts the resistance value of a variable resistor (140) to enable continuous linearity testing by adjusting the output voltage.

[0038] The enclosure (170) may have a terminal section (110), a selection switch (160), and a linearity waveform measuring section (150) on one side of the exterior, and a voltage supply unit (120), a current supply unit (130), and a variable resistor (140) on the interior.

[0039] In summary, the user can supply control power through a voltage supply unit (120) that supplies 120 Vac power, and adjust the second selection switch (162) so that the current supply unit (130) supplies a current of 4 to 20 mA to the variable resistor (140), thereby allowing the formed voltage to be output through the linearity waveform measuring unit (150).

[0040] At this time, the user can operate the first selection switch (161) to perform a rising test or a falling test, and the rising test and the falling test can be performed continuously.

[0041] So far, a linearity tester for a voltage regulation circuit of an electric generator has been described in detail with reference to preferred embodiments.

[0042] According to an embodiment of the present invention, a linearity tester for a voltage regulation circuit of an electric generator is a single device equipped with a power supply means, a current supply means, and a selection switch. During the linearity test, the test power is continuously applied without interruption during the rising and falling processes, thereby clearly providing a linearity judgment criterion. This prevents the problem of reduced accuracy in judging the linearity soundness of the voltage regulation circuit due to ambiguous continuous waveform judgment criteria.

[0043] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0045] 110 : Terminal section 120: Voltage supply 130 : Current supply 140 : Variable resistor 150 : Linearity waveform measurement unit 160: Selector switch 170 : Enclosure

Claims

Claim 1 A terminal section connected to a voltage regulating circuit of an electric generator to be tested; a voltage supply that receives power from the voltage regulating circuit connected to the terminal section, converts it to a voltage of a preset intensity, and supplies the power converted to the voltage of the preset intensity to the inside; a variable resistor provided inside; a current supply that receives power converted to the voltage of the preset intensity from the voltage supply, converts the current intensity of the supplied power to a preset intensity, and supplies the power converted to the current of the preset intensity to the variable resistor; and a linearity waveform measuring section that measures the linearity waveform of the output voltage formed by the current supplied to the variable resistor. A linearity tester for a voltage adjustment circuit of an electric generator, characterized by comprising: a selection switch provided to adjust the resistance value of a variable resistor so that continuous linearity testing can be performed by adjusting the output voltage; wherein the voltage supply unit converts the supplied 220Vac power into 120Vac power and supplies it internally when 220Vac power is supplied from the voltage adjustment circuit, the current supply unit supplies a current of 4mA to 20mA of the supplied power to the variable resistor, and the selection switch enables operation for a rising test or a falling test; a first selection switch; and a second selection switch that adjusts the resistance value of the variable resistor so that continuous linearity testing can be performed by adjusting the output voltage. Claim 2 delete Claim 3 A linearity tester for a voltage adjustment circuit of an electric generator according to claim 1, wherein the terminal portion is provided with a banana jack type connection terminal. Claim 4 delete Claim 5 delete Claim 6 A voltage supply that receives power from a voltage adjustment circuit, converts it to a voltage of a preset intensity, and supplies the power converted to the voltage of the preset intensity to the inside; a variable resistor provided inside; a current supply that receives power converted to the voltage of the preset intensity from the voltage supply, converts the current intensity of the supplied power to a preset intensity, and supplies the power converted to the current of the preset intensity to the variable resistor; and a selection switch provided to adjust the resistance value of the variable resistor so that continuous linearity testing can be performed by adjusting the output voltage. A linearity tester for a voltage adjustment circuit of an electric generator, characterized by comprising: a linearity waveform measuring unit for measuring the linearity waveform of an output voltage formed by a current supplied to a variable resistor; wherein the voltage supply unit converts the supplied 220Vac power into 120Vac power and supplies it internally when 220Vac power is supplied from a voltage adjustment circuit; the current supply unit supplies a current of 4mA to 20mA of the supplied power to the variable resistor; and the selection switch includes a first selection switch that enables operation for a rising test or a falling test; and a second selection switch that adjusts the resistance value of the variable resistor to enable continuous linearity testing by adjusting the output voltage.

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