CN218546977U - Generator rotor overvoltage cross-over connector loop detection device - Google Patents
Generator rotor overvoltage cross-over connector loop detection device Download PDFInfo
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- CN218546977U CN218546977U CN202222333152.6U CN202222333152U CN218546977U CN 218546977 U CN218546977 U CN 218546977U CN 202222333152 U CN202222333152 U CN 202222333152U CN 218546977 U CN218546977 U CN 218546977U
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Abstract
The utility model relates to a generator rotor overvoltage cross-over connection ware return circuit detection device, include: the device comprises an input unit, an output unit, a detection unit and a detection port; the detection port comprises a first detection port and a second detection port; the input end of the input unit is connected with an alternating current signal, and the input unit is used for adjusting output voltage when the equipment to be tested is detected so as to change test voltage provided by the output unit to the equipment to be tested; the detection unit is used for detecting the test voltage of the equipment to be detected and displaying and recording the test voltage. The utility model discloses an input unit adjusts the test voltage of output unit output to make output unit can provide the voltage and the electric current that satisfy generator rotor overvoltage cross-over connector loop test, guaranteed field test's normal clear, can also realize treating the state characteristic detection of equipment of examining simultaneously, can guarantee the smooth completion of periodic check-up task.
Description
Technical Field
The utility model relates to a technical field that detects, more specifically say, relate to a generator rotor overvoltage cross-over connection ware return circuit detection device.
Background
When a tester carries out the loop test of the overvoltage jumper of the generator rotor on site, a direct current source which outputs 1000V direct current and has leakage current of about 50mA is needed. However, the conventional direct current source cannot provide high voltage and high leakage current, so that the on-site generator rotor overvoltage jumper loop cannot be tested, the state characteristics of the generator rotor overvoltage jumper loop cannot be detected, and a periodic calibration task cannot be completed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's defect, a generator rotor overvoltage cross-over connection ware return circuit detection device is provided.
The utility model provides a technical scheme that its technical problem adopted is: constructing a generator rotor overvoltage jumper loop detection device, comprising: the device comprises an input unit, an output unit, a detection unit and a detection port; the detection port comprises a first detection port and a second detection port;
the input end of the input unit is connected with an alternating current signal, the output end of the input unit is connected with the input end of the output unit, the first output end of the output unit is connected with the first detection port, the second output end of the output unit is connected with the second detection port, the first end of the detection unit is connected with the first detection port, the second end of the detection unit is connected with the second detection port, and the first detection port and the second detection port are respectively connected to equipment to be detected;
the input unit is used for adjusting output voltage when the equipment to be tested is detected so as to change the test voltage provided by the output unit to the equipment to be tested; the detection unit is used for detecting the test voltage of the equipment to be tested and displaying and recording the test voltage.
In the generator rotor overvoltage jumper loop detection device of the present invention, the input unit includes: the device comprises an input module, a switch module and an adjusting module;
the input module is connected with the alternating current signal, the input end of the switch module is connected with the input module, the output end of the switch module is connected with the input end of the adjusting module, and the output end of the adjusting module is connected with the input end of the output unit;
the switch module is used for being conducted when the equipment to be detected is detected so as to transmit the alternating current signal accessed by the input module to the adjusting module;
the adjusting module is used for adjusting output voltage according to the alternating current signal so as to change the test voltage provided by the output unit to the device to be tested.
In the overvoltage across-voltage-connector loop detection device for a generator rotor, the input module includes: a first input port and a second input port; the switch module includes: an air switch;
the first input port is connected with the first input end of the air switch, the second input port is connected with the second input end of the air switch, and the first output end of the air switch and the second output end of the air switch are respectively connected to the adjusting module.
In the generator rotor overvoltage jumper loop detection device of the present invention, the adjusting module includes: a voltage regulator;
the first input end of the pressure regulator is connected with the first output end of the air switch, and the second input end of the pressure regulator is connected with the second output end of the air switch;
the first output end of the voltage regulator and the second output end of the voltage regulator are respectively connected to the output unit.
In the overvoltage across-voltage-connector loop detection device for a generator rotor, the output unit includes: the voltage-boosting circuit comprises a voltage-boosting module, a rectifying module and a voltage-dividing module;
the first input end of the boosting module is connected with the first output end of the voltage regulator, the second input end of the boosting module is connected with the second output end of the voltage regulator, the first output end of the boosting module is connected with the input end of the rectifying module, the output end of the rectifying module is connected with the input end of the voltage dividing module, and the output end of the voltage dividing module is connected with the first detection port;
and the second output end of the boosting module is connected with the second detection port.
In the device for detecting overvoltage across-voltage cross-over connector loop of generator rotor, the voltage boosting module comprises: a step-up transformer;
the first input end of the step-up transformer is connected with the first output end of the voltage regulator, the second input end of the step-up transformer is connected with the second output end of the voltage regulator, the first output end of the step-up transformer is connected with the input end of the rectifier module, and the second output end of the step-up transformer is connected with the second detection port.
In the device for detecting overvoltage across-voltage cross-over connector loop of generator rotor, the rectifier module comprises: stacking silicon; the voltage division module includes: a voltage dividing resistor;
the input end of the silicon stack is connected with the first output end of the boosting transformer, the output end of the silicon stack is connected with the input end of the divider resistor, and the output end of the divider resistor is connected with the first detection port.
Among generator rotor overvoltage cross-over connector return circuit detection device, step up transformer's the biggest voltage regulation scope of high-pressure side voltage is 1000V, and capacity is 6 ~ 10kV, and leakage current is 50mA.
In the device for detecting overvoltage across-connection device loop of generator rotor, the maximum value of the voltage output after rectification of the silicon stack is 1000V direct current.
In the generator rotor overvoltage jumper loop detection device of the present invention, the detection unit includes: an oscilloscope;
and the first end of the oscilloscope is connected with the first detection port, and the second end of the oscilloscope is connected with the second detection port.
Implement the utility model discloses a generator rotor overvoltage cross-over connection ware return circuit detection device has following beneficial effect: the method comprises the following steps: the device comprises an input unit, an output unit, a detection unit and a detection port; the detection port comprises a first detection port and a second detection port; the input end of the input unit is connected with an alternating current signal, and the input unit is used for adjusting output voltage when detecting the equipment to be detected so as to change test voltage provided by the output unit to the equipment to be detected; the detection unit is used for detecting the test voltage of the equipment to be detected and displaying and recording the test voltage. The utility model discloses an input unit adjusts the test voltage of output unit output to make output unit can provide the voltage and the electric current that satisfy generator rotor overvoltage cross-over connector loop test, guaranteed field test's normal clear, can also realize treating equipment's state characteristic simultaneously and detect, can guarantee the smooth completion of periodic check-up task.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic block diagram of a generator rotor overvoltage jumper loop detection device provided by the present invention;
fig. 2 is a circuit diagram of the generator rotor overvoltage jumper loop detection device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, a schematic block diagram of an alternative embodiment of a generator rotor overvoltage jumper loop detection device according to the present invention is shown.
Specifically, as shown in fig. 1, the device for detecting an overvoltage across-bridge loop of a generator rotor includes: an input unit 10, an output unit 20, a detection unit 30, and a detection port 40; the detection port 40 includes a first detection port 41 and a second detection port 42.
The input end of the input unit 10 is connected with an alternating current signal, the output end of the input unit 10 is connected with the input end of the output unit 20, the first output end of the output unit 20 is connected with the first detection port 41, the second output end of the output unit 20 is connected with the second detection port 42, the first end of the detection unit 30 is connected with the first detection port 41, the second end of the detection unit 30 is connected with the second detection port 42, and the first detection port 41 and the second detection port 42 are respectively connected to a device to be detected. Wherein, in the embodiment of the utility model provides an in, this equipment that awaits measuring can be generator rotor overvoltage cross-over connection ware return circuit.
The input unit 10 is used for adjusting the output voltage when the device to be tested is detected so as to change the test voltage provided by the output unit 20 to the device to be tested; the detection unit 30 is used for detecting the test voltage of the device to be tested and displaying and recording the test voltage.
In some embodiments, as shown in fig. 1, the input unit 10 includes: an input module 11, a switching module 12 and a regulating module 13.
The input module 11 is connected with an alternating current signal, the input end of the switch module 12 is connected with the input module 11, the output end of the switch module 12 is connected with the input end of the adjusting module 13, and the output end of the adjusting module 13 is connected with the input end of the output unit 20.
The switch module 12 is configured to be turned on when the device under test is detected, so as to transmit the ac signal received by the input module 11 to the adjusting module 13. Specifically, the switch module 12 is configured to control the connection or disconnection of the ac signal.
The adjusting module 13 is configured to adjust the output voltage according to the ac signal to change the test voltage provided by the output unit 20 to the device under test. Specifically, the adjusting module 13 may adjust its own output voltage according to a test requirement in a process of detecting the overvoltage jumper loop of the generator rotor, so as to achieve a purpose of adjusting the test voltage output by the output unit 20.
In some embodiments, as shown in fig. 1, the output unit 20 includes: a boost module 21, a rectifier module 22 and a voltage divider module 23.
A first input end of the boosting module 21 is connected with a first output end of the voltage regulator, a second input end of the boosting module 21 is connected with a second output end of the voltage regulator, a first output end of the boosting module 21 is connected with an input end of the rectifying module 22, an output end of the rectifying module 22 is connected with an input end of the voltage dividing module 23, and an output end of the voltage dividing module 23 is connected with the first detection port 41; a second output terminal of the boosting module 21 is connected to the second detection port 42.
Specifically, the boosting module 21 boosts the voltage signal received from the low voltage side and outputs the boosted voltage signal through the high voltage side, and the output voltage of the high voltage side changes with the adjustment of the adjusting module 13. The test voltage output by the boost module 21 is rectified by the rectifier module 22 and then output to the first detection port 41, so as to provide the test voltage meeting the test requirement for the device to be tested.
Referring to fig. 2, it is a circuit diagram of an alternative embodiment of the overvoltage cross-over device loop detection device for a generator rotor according to the present invention.
Specifically, as shown in fig. 2, in this embodiment, the input module 11 includes: a first input port and a second input port. The switch module 12 includes: an air switch K1.
The first input port is connected with a first input end of the air switch K1, the second input port is connected with a second input end of the air switch K1, and a first output end of the air switch K1 and a second output end of the air switch K1 are respectively connected to the adjusting module 13.
The adjustment module 13 includes: a voltage regulator T1. A first input end of the pressure regulator T1 is connected with a first output end of the air switch K1, and a second input end of the pressure regulator T1 is connected with a second output end of the air switch K1; the first output terminal of the voltage regulator T1 and the second output terminal of the voltage regulator T1 are connected to the output unit 20, respectively.
The booster module 21 includes: and a step-up transformer T2. The first input end of the step-up transformer T2 is connected with the first output end of the voltage regulator T1, the second input end of the step-up transformer T2 is connected with the second output end of the voltage regulator T1, the first output end of the step-up transformer T2 is connected with the input end of the rectifier module 22, and the second output end of the step-up transformer T2 is connected with the second detection port 42. Optionally, in the embodiment of the utility model, the maximum voltage regulating range of this step-up transformer T2's high-side voltage is 1000V, and capacity is 6 ~ 10kV, and leakage current is 50mA.
The rectifying module 22 includes: a silicon stack D1; the voltage dividing module 23 includes: and a voltage dividing resistor R1.
The input end of the silicon stack D1 is connected with the first output end of the boosting transformer T2, the output end of the silicon stack D1 is connected with the input end of the divider resistor R1, and the output end of the divider resistor R1 is connected with the first detection port 41. Optionally, in the embodiment of the present invention, the maximum value of the voltage output after the rectification by the silicon stack D1 is 1000V dc.
The detection unit 30 includes: an oscilloscope; the first end of the oscilloscope is connected with a first detection port 41 (shown as A1 in the figure), and the second end of the oscilloscope is connected with a second detection port 42 (shown as A2 in the figure). In the embodiment of the present invention, the oscilloscope is connected to the first detection port 41 and the second detection port 42 through cables. Alternatively, the cable used may be a 6mm2 copper core wire. Typically, to meet the test requirements, a 10 meter cable may be used.
In a specific embodiment, the voltage regulator T1 may adopt a voltage regulator T1 with overcurrent protection; the maximum output voltage of the rectified silicon stack D1 is 1kVDC; the maximum voltage regulating range of the high-voltage side of the step-up transformer T2 is 1kV, the capacity is 6-10 kV, and the leakage current is 50mA; the air switch K1 can be a C10 air switch K1; the maximum measurement range of the oscilloscope is 2 vdc.
Specifically, as shown in fig. 2, the air switch K1 is fixed on the spot, and the secondary line is connected, the voltage regulator T1 is fixed, and the secondary line connecting the voltage regulator T1 and the air switch K1 is connected; fixing a step-up transformer T2, connecting the step-up transformer T2 with a voltage regulator T1, connecting all connecting wires, connecting an input end of an air switch K1 into an AC220V alternating-current working power supply, adjusting the gear of the voltage regulator T1 to 0V, manually closing the air switch K1, executing detection on a circuit of the generator rotor overvoltage jumper, continuously adjusting the output voltage of the voltage regulator T1 after connecting a normal alternating-current 220V working power supply in the detection process, and achieving the purpose of changing test voltages at two ends of the jumper so as to achieve the purpose of verifying the generator rotor overvoltage jumper; meanwhile, the test voltage of the overvoltage jumper loop of the generator rotor is detected through the oscilloscope, namely the waveform output by the oscilloscope is monitored, and when the waveform acts, corresponding action is recorded. Through the utility model discloses a detection device not only provides 1000V, leakage current for 50 mA's direct current source to generator rotor overvoltage cross-over connection ware return circuit, can inspect whether generator rotor overvoltage cross-over connection ware return circuit is normal moreover.
Further, the utility model discloses a detection device simple structure is practical, convenient operation, easy maintenance.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A generator rotor overvoltage jumper loop detection device, comprising: the device comprises an input unit, an output unit, a detection unit and a detection port; the detection port comprises a first detection port and a second detection port;
the input end of the input unit is connected with an alternating current signal, the output end of the input unit is connected with the input end of the output unit, the first output end of the output unit is connected with the first detection port, the second output end of the output unit is connected with the second detection port, the first end of the detection unit is connected with the first detection port, the second end of the detection unit is connected with the second detection port, and the first detection port and the second detection port are respectively connected to equipment to be detected;
the input unit is used for adjusting output voltage when the equipment to be tested is detected so as to change the test voltage provided by the output unit to the equipment to be tested; the detection unit is used for detecting the test voltage of the equipment to be tested and displaying and recording the test voltage.
2. The generator rotor overvoltage jumper loop detection device of claim 1, wherein the input unit comprises: the device comprises an input module, a switch module and an adjusting module;
the input module is connected with the alternating current signal, the input end of the switch module is connected with the input module, the output end of the switch module is connected with the input end of the regulating module, and the output end of the regulating module is connected with the input end of the output unit;
the switch module is used for conducting when the equipment to be detected is detected so as to transmit the alternating current signal accessed by the input module to the adjusting module;
the adjusting module is used for adjusting output voltage according to the alternating current signal so as to change the test voltage provided by the output unit to the device to be tested.
3. The generator rotor overvoltage jumper loop detection device of claim 2, wherein the input module comprises: a first input port and a second input port; the switch module includes: an air switch;
the first input port is connected with the first input end of the air switch, the second input port is connected with the second input end of the air switch, and the first output end of the air switch and the second output end of the air switch are respectively connected to the adjusting module.
4. The generator rotor overvoltage jumper loop detection device of claim 3, wherein the regulation module comprises: a voltage regulator;
the first input end of the pressure regulator is connected with the first output end of the air switch, and the second input end of the pressure regulator is connected with the second output end of the air switch;
the first output end of the voltage regulator and the second output end of the voltage regulator are respectively connected to the output unit.
5. The generator rotor overvoltage jumper loop detection device of claim 4, wherein the output unit comprises: the voltage-boosting circuit comprises a voltage-boosting module, a rectifying module and a voltage-dividing module;
the first input end of the boosting module is connected with the first output end of the voltage regulator, the second input end of the boosting module is connected with the second output end of the voltage regulator, the first output end of the boosting module is connected with the input end of the rectifying module, the output end of the rectifying module is connected with the input end of the voltage dividing module, and the output end of the voltage dividing module is connected with the first detection port;
and the second output end of the boosting module is connected with the second detection port.
6. The generator rotor overvoltage jumper loop detection device of claim 5, wherein the boost module comprises: a step-up transformer;
the first input end of the step-up transformer is connected with the first output end of the voltage regulator, the second input end of the step-up transformer is connected with the second output end of the voltage regulator, the first output end of the step-up transformer is connected with the input end of the rectifier module, and the second output end of the step-up transformer is connected with the second detection port.
7. The generator rotor overvoltage jumper loop detection device of claim 6, wherein the rectification module comprises: stacking silicon; the voltage division module includes: a voltage dividing resistor;
the input end of the silicon stack is connected with the first output end of the boosting transformer, the output end of the silicon stack is connected with the input end of the divider resistor, and the output end of the divider resistor is connected with the first detection port.
8. The device as claimed in claim 6, wherein the step-up transformer has a maximum voltage regulation range of 1000V at the high voltage side, a capacity of 6-10 kV, and a leakage current of 50mA.
9. The generator rotor overvoltage jumper loop detection device of claim 7, wherein a maximum value of the voltage output after rectification by the silicon stack is 1000 vdc.
10. Generator rotor overvoltage jumper loop detection device according to any of claims 1-7, wherein the detection unit comprises: an oscilloscope;
and the first end of the oscilloscope is connected with the first detection port, and the second end of the oscilloscope is connected with the second detection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222333152.6U CN218546977U (en) | 2022-09-02 | 2022-09-02 | Generator rotor overvoltage cross-over connector loop detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222333152.6U CN218546977U (en) | 2022-09-02 | 2022-09-02 | Generator rotor overvoltage cross-over connector loop detection device |
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| Publication Number | Publication Date |
|---|---|
| CN218546977U true CN218546977U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222333152.6U Active CN218546977U (en) | 2022-09-02 | 2022-09-02 | Generator rotor overvoltage cross-over connector loop detection device |
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| Country | Link |
|---|---|
| CN (1) | CN218546977U (en) |
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2022
- 2022-09-02 CN CN202222333152.6U patent/CN218546977U/en active Active
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