CN218848242U - High-efficient comprehensive testing device of transformer - Google Patents
High-efficient comprehensive testing device of transformer Download PDFInfo
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- CN218848242U CN218848242U CN202221836645.5U CN202221836645U CN218848242U CN 218848242 U CN218848242 U CN 218848242U CN 202221836645 U CN202221836645 U CN 202221836645U CN 218848242 U CN218848242 U CN 218848242U
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Abstract
The utility model relates to the technical field of transformer detection, in particular to a high-efficiency comprehensive detection device for a transformer, which comprises a control module, an empty load module, a direct resistance test module, a matrix module, an output module, a power module and a control terminal; the input end of the control module is accessed to a control terminal, and the control terminal is used for inputting a control command and capturing state and data information; the output end of the control module is sequentially connected with the empty load module, the direct resistance testing module, the matrix module, the output module, the power supply module and the control terminal. The empty load module and the direct resistance testing module are integrated on one detection device, so that the requirement of a user on the conventional detection item of the transformer is met, the separated testing item and link are effectively and reasonably integrated, and a brand-new detection product is formed.
Description
Technical Field
The utility model relates to a transformer detects technical field, specifically is a high-efficient comprehensive testing device of transformer.
Background
The existing special equipment for detecting the quality of transformer materials mainly comprises two typical equipment types, one type is full-function automatic testing equipment, detection items are complete but large in size and price, the equipment is often used as special detection equipment of a large-scale detection mechanism and is applied to high-standard concentrated sampling occasions; the second type is a special instrument with single function, which is only used as special detection equipment of ordinary enterprises and public institutions and is applied to occasions with wide quality inspection requirements.
The existing two typical devices cannot effectively cover certain typical application occasions. In some cases, the daily detection amount is large, and the required detection items are a subset of the full-item detection, but not a single item. At the moment, if one type of detection equipment is applied to detection, the cost is too high; if the detection is performed by using two types of detection equipment, the efficiency is low because all the detection actions are separated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a high-efficient comprehensive detection device of transformer and solve above-mentioned a class check out test set cost too high and two classes check out test set inefficiency, unsatisfied conventional transformer detection demand's problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a transformer high-efficiency comprehensive detection device comprises a control module, an empty load module, a direct resistance test module, a matrix module, an output module, a power supply module and a control terminal; the input end of the control module is accessed to a control terminal, and the control terminal is used for inputting a control command and capturing state and data information; the output end of the control module is sequentially connected with the empty load module, the direct resistance testing module, the matrix module, the output module, the power supply module and the control terminal; the empty load module is used for testing the current, voltage and power functions of a transformer circuit, and the direct resistance test module is used for testing the resistance functions of a transformer winding; the output module is used for connecting a transformer to be detected; the matrix module is controlled by the control module to realize the connection or disconnection of the empty load module and the direct resistance test module with the electric circuit between the output modules respectively; the power supply module is used for supplying power to the system.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the control module adopts a PLC controller as a control core and adopts MB10D18RO and MB4TC communication modules as control auxiliary modules.
Further, the empty load module and the direct resistance test module are in communication connection with the PLC through communication interfaces.
Furthermore, the signal acquisition end of the PLC controller is connected with a temperature, humidity and barometric pressure meter through a communication interface.
Furthermore, the control terminal is a computer or a handheld terminal and is in communication connection with the control module through a wireless WiFi interface.
Further, the empty load module is a power analyzer and measures the voltage and the current of the main loop through a three-meter method; the direct resistance testing module is a direct resistance tester and is connected with the control end of the PLC controller through a NXC-25 switching circuit to perform line switching.
Further, the power supply module comprises a battery and a program-controlled source, wherein the program-controlled source is used for adjusting a part of direct current output by the battery into adjustable three-phase alternating current so as to supply power to the interior of the system, and adjusting the other part of direct current into constant 220V three-phase alternating current so as to supply power to the PLC control circuit.
The utility model has the advantages that:
1) The utility model relates to a high-efficient comprehensive testing device of transformer, through with the empty load module and directly hinder the test module integration to a detection device on, satisfy the user and detect the project in the conventionality of transformer, effectively rationalize the integration to the test project and the link of separation, form brand-new detection product.
2) The utility model relates to a high-efficient comprehensive testing device of transformer through adopting PLC to be the electric automation design of core, has reduced the manual operation link, has promoted the security performance and has guaranteed the data accuracy.
3) The utility model relates to a high-efficient comprehensive testing device of transformer has high integrated level, has reduced the volume, adopts portable battery to supply power simultaneously, satisfies the removal operation demand.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is an electrical schematic diagram of the PLC control core of the control module of the present invention;
fig. 3 is an electrical schematic diagram of the MB10D18RO communication module of the present invention;
FIG. 4 is the electrical schematic diagram of the MB4TC communication module of the present invention
Fig. 5 is an electrical schematic diagram of the control module of the present invention for implementing control and data acquisition;
fig. 6 is an electrical schematic diagram of the power module of the present invention;
fig. 7 is a partial electrical schematic diagram of the air-load module of the present invention;
fig. 8 is an electrical schematic diagram of the matrix module control direct resistance test module of the present invention;
fig. 9 is an electrical schematic diagram of the matrix module control empty load module of the present invention;
fig. 10 is an electrical schematic diagram of the output module of the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are intended to be construed broadly, as if they were connected either fixedly or removably, or as integrally formed structures. To those of ordinary skill in the art, the specific meaning of such terms in this patent may be understood as appropriate.
In most transformer detection scenes, the resistance test of a transformer winding is carried out by a direct-current resistance tester, the empty load test is carried out by a power analyzer, and the induction voltage withstand test is carried out by a frequency doubling power supply provided by a generator set. The tests developed under this test method have the following weaknesses:
the test process is fragmented, the operation process is complex, and the error rate is high.
The test data can not be collected, processed and stored uniformly, and the data processing efficiency is low.
The test equipment is heavy, not easy to move, difficult to manage, large in equipment loss and large in equipment floor area.
The automation and intelligence degree of the test are low.
Therefore the utility model designs a high-efficient comprehensive testing device of transformer solves above-mentioned problem.
As shown in fig. 1, the transformer high-efficiency comprehensive detection device of the present invention includes a control module, an empty load module, a direct resistance test module, a matrix module, an output module, a power module and a control terminal; the input end of the control module is accessed to a control terminal, and the control terminal is used for inputting a control command and capturing state and data information; the output end of the control module is sequentially connected with the empty load module, the direct resistance testing module, the matrix module, the output module, the power supply module and the control terminal; the empty load module is used for testing the current, voltage and power functions of a transformer circuit, and the direct resistance test module is used for testing the resistance functions of a transformer winding; the output module is used for accessing a transformer to be detected, and specifically, a 150A rhinoceros socket and a rubber socket combined wiring panel can be used for accessing transformer equipment to be detected so as to perform structural or electrical adaptation, see fig. 10; the matrix module is controlled by the control module to realize the connection or disconnection of the empty load module and the direct resistance test module with the electric circuit between the output modules respectively; the power supply module is used for supplying power to a system, and comprises instrument power consumption, control loop power consumption and test power consumption. By integrating the empty load module and the direct resistance test module into one detection device, the requirement of a user on conventional detection items (winding resistance test, no-load loss and no-load current measurement, short-circuit impedance and load loss measurement, induction withstand voltage test and no-load loss and no-load current measurement under 90% and 110% rated voltage) of the transformer is met, one-time wiring of a product to be detected is completed through the output module, a detection instruction can be sent through the control terminal, one-time detection is performed on each detection item of the product to be detected through the control module, the efficiency is greatly improved, and the accuracy and the reliability of data are enhanced.
As an embodiment, referring to fig. 2, the control module adopts a PLC controller as a control core, and specifically may be a siemens SR20 PLC controller, and adopts MB10D18RO and MB4TC communication modules as control auxiliary modules; referring to fig. 3 and 4, the mb10d18ro communication module is used for direct resistance test circuit switching control, and the MB4TC communication module is used for thermocouple temperature acquisition control.
As an implementation mode, the empty load module and the direct resistance test module are both in communication connection with the PLC controller through a communication interface; the signal acquisition end of the PLC controller is also connected with a temperature, humidity and atmospheric pressure meter through a communication interface.
Specifically, referring to FIG. 7, the empty load module is a power analyzer (model: ZLBTC-6050, type: 600V/50A), and the voltage and current of the main loop are measured by a three-meter method; referring to fig. 8, the direct resistance test module is a direct resistance tester (model: ZLR-10H, type: single-channel high-precision type), and is connected to the control end of the PLC controller through a NXC-25 switch circuit to perform line switching. Referring to fig. 5, the PLC controller is in communication connection with the power analyzer and the temperature, humidity and atmospheric pressure meter by using a USR-TCP232-410s communication interface, and the PLC controller is in communication connection with the direct resistance tester by using a USR-W610 communication interface, thereby realizing control of desired data acquisition.
It should be added that the electrical control principle of the matrix module can be seen in particular in fig. 8 and 9.
The power analyzer adopts the following control principle through a matrix module: when the three-meter method measurement is carried out, the three-phase high-voltage input of the power analyzer is controlled to be in contact with and disconnected from a three-phase terminal of a high-voltage end of a transformer of a tested object through an alternating current contactor NXC-09, and the control terminal outputs SX-KM-U:2 for a PLC (programmable logic controller); the short circuit of three-phase low-voltage input of the power analyzer is controlled through an auxiliary contact AX-3X-40 of the alternating current contactor, and a control terminal is a PLC output SX-KMF-U which is 1/2/3. When the two-table method measurement is carried out: controlling the three-phase high-voltage input of a power analyzer to be in contact with and disconnected from a three-phase terminal at the high-voltage end of a transformer of a tested object through an alternating current contactor NXC-09, wherein the control terminal is a PLC (programmable logic controller) output SX-KM-U-delta: 2; the contact and disconnection of a three-phase low-voltage input terminal of a power analyzer and a three-phase terminal of a high-voltage end of a transformer of a tested object are controlled through an auxiliary contact AX-3X-40 of an alternating current contactor, and the control terminal is a PLC output SX-KMF-U-delta: 1/2/3.
The direct resistance tester adopts the matrix module control principle as follows: the on-off of 3 NXC-25 AC contactors is used for controlling the dynamic connection of a current terminal pair (1I +/1I-) and a voltage terminal pair (1U +/1U-) fixed by a direct resistance meter, three groups of dynamic terminal pairs (Ia/Ib, HV _ UA/HV _ UB), (Ib/Ic, HV _ UB/HV _ UC), (Ia/Ic, HV _ UA/HV _ UC), and a control terminal for PLC controller output: 1KM-R12:2/3,1KM-R23:2/3,1KM-R31:2/3.
As an implementation mode, the control terminal is a computer or a handheld terminal, is in communication connection with the control module through a wireless WiFi interface, and adopts a remote terminal to control the corresponding control module, so that the detection of the corresponding transformer to be detected can be realized.
As an implementation manner, referring to fig. 1, the power module includes a battery and a program-controlled source, and the battery adopts a rechargeable storage battery to meet the power supply requirement of the entire transformer high-efficiency comprehensive detection device for transferring to a corresponding detection ground; the program control source is used for adjusting a part of direct current output by the battery into adjustable three-phase alternating current to supply power to the interior of the system, and adjusting the other part of direct current into constant 220V three-phase alternating current to supply power to the PLC control circuit. Referring to fig. 6, the adjustable three-phase ac power supplies the external three-phase power supply input terminal of the system through the input a/B/C, supplies power to the inside of the system through the output a/B/C, and N is the neutral point inside the system; NXC-12 is the main loop switch control circuit, and NXB-63 is the PLC power supply switch control circuit. The program control source adopts a power inverter inside, an input direct current power supply is converted into a 50Hz square wave through an inverter bridge circuit, the square wave is shaped into a 50Hz sine wave through a filter circuit, and the required 50Hz sine wave is output through a voltage regulating circuit, which is not described in detail herein.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The transformer high-efficiency comprehensive detection device is characterized by comprising a control module, an empty load module, a direct resistance test module, a matrix module, an output module, a power supply module and a control terminal; the input end of the control module is accessed to a control terminal, and the control terminal is used for inputting a control command and capturing state and data information; the output end of the control module is sequentially connected with the empty load module, the direct resistance testing module, the matrix module, the output module, the power supply module and the control terminal; the empty load module is used for testing the current, voltage and power functions of a transformer circuit, and the direct resistance test module is used for testing the resistance functions of a transformer winding; the output module is used for connecting a transformer to be detected; the matrix module is controlled by the control module to realize the connection or disconnection of the empty load module and the direct resistance test module with the electric circuit between the output modules respectively; the power supply module is used for supplying power to the system.
2. The transformer high-efficiency comprehensive detection device according to claim 1, wherein the control module adopts a PLC controller as a control core and adopts MB10D18RO and MB4TC communication modules as control auxiliary modules.
3. The transformer high-efficiency comprehensive detection device according to claim 2, wherein the empty load module and the direct resistance test module are in communication connection with the PLC through communication interfaces.
4. The efficient comprehensive detection device for the transformer according to claim 2, wherein the signal acquisition end of the PLC is further connected with a temperature, humidity and barometric pressure meter through a communication interface.
5. The transformer high-efficiency comprehensive detection device according to claim 1, wherein the control terminal is a computer or a handheld terminal and is in communication connection with the control module through a wireless WiFi interface.
6. The transformer high-efficiency comprehensive detection device according to claim 2, wherein the power module comprises a battery and a programmable source, the programmable source is used for adjusting a part of direct current output by the battery into adjustable three-phase alternating current to supply power to the inside of the system, and adjusting the other part of direct current into constant 220V three-phase alternating current to supply power to the PLC control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221836645.5U CN218848242U (en) | 2022-07-18 | 2022-07-18 | High-efficient comprehensive testing device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221836645.5U CN218848242U (en) | 2022-07-18 | 2022-07-18 | High-efficient comprehensive testing device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218848242U true CN218848242U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221836645.5U Active CN218848242U (en) | 2022-07-18 | 2022-07-18 | High-efficient comprehensive testing device of transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN218848242U (en) |
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2022
- 2022-07-18 CN CN202221836645.5U patent/CN218848242U/en active Active
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