CN212872747U - Transformer withstand voltage test series connection switches on box - Google Patents
Transformer withstand voltage test series connection switches on box Download PDFInfo
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- CN212872747U CN212872747U CN202021677783.4U CN202021677783U CN212872747U CN 212872747 U CN212872747 U CN 212872747U CN 202021677783 U CN202021677783 U CN 202021677783U CN 212872747 U CN212872747 U CN 212872747U
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Abstract
The utility model relates to the technical field of electronic auxiliary equipment, and discloses a series conducting box for withstand voltage test of a transformer, which comprises a box body, wherein a control panel, a high-voltage tester, a power supply and a switch are arranged in the box body; the control panel is provided with: the low-voltage channel is provided with a plurality of coil channels which are connected in series, and the two sides of each coil channel are connected with the contacts of the relay in series; each high-voltage channel is connected to two ends of one coil channel in parallel, the high-voltage channels are electrically connected with a high-voltage tester, and a contact of a relay is arranged between the high-voltage channels and the high-voltage tester; the controller, the relay is connected to the controller, and the normally open contact of relay establishes ties the low pressure passageway, and the normally closed contact of relay establishes ties a plurality of high pressure channels, the utility model provides the high automation of transformer withstand voltage test's equipment to efficiency of software testing has been improved.
Description
Technical Field
The utility model relates to an electron auxiliary assembly technical field particularly, relates to a transformer withstand voltage test series connection leads to box.
Background
The transformer is used as common equipment in electronic elements, a withstand voltage test is required before delivery, and in the prior art, a transformer parallel test method is mostly adopted, so that the PIN foot leakage test phenomenon of the transformer exists; for example, the chinese patent with application number 201720891742.7 discloses a series connection and conduction box device for high frequency transformer withstand voltage test, which changes the parallel test method into the series test method, and switches the test state of the test device by controlling the first double-pole eight-throw switch and the second double-pole eight-throw switch, and the process is troublesome, the degree of automation is low, and even the test can be completed by manual operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transformer withstand voltage test series connection leads to box solves above-mentioned problem.
The utility model discloses a realize like this: a series conducting box for voltage withstand test of a transformer comprises a box body, wherein a control board, a high-voltage tester, a power supply and a switch are arranged in the box body; the control panel is provided with: the low-voltage channel is provided with a plurality of coil channels which are connected in series, and the two sides of each coil channel are connected with the contacts of the relay in series; each high-voltage channel is connected to two ends of one coil channel in parallel, the high-voltage channels are electrically connected with a high-voltage tester, and a contact of a relay is arranged between the high-voltage channels and the high-voltage tester; the controller is connected with the relay, the normally open contact of the relay is connected with the low-voltage channel in series, and the normally closed contact of the relay is connected with the high-voltage channels in series.
Further, the controller is a 20MTPLC controller, and a pin (Y0) of the PLC controller is connected with the relay (KA1) and a pin (X3) connecting switch; a normally open contact of the relay (KA1) is connected in series with a first relay group, a normally closed contact of the relay (KA1) is connected in series with a second relay group, and the first relay group comprises a relay (KH9), a relay (KH10), a relay (KH11), a relay (KH12) and a relay (KH13) which are connected in parallel; the second relay group comprises a relay (KH1), a relay (KH2), a relay (KH3), a relay (KH4), a relay (KH5), a relay (KH6), a relay (KH7) and a relay (KH8) which are connected in parallel; the low-voltage channel is connected with a pin (X0) of the PLC controller, and data are fed back and power is supplied through a pin (X0); the low-voltage channel is provided with a coil channel I, a coil channel II, a coil channel III and a coil channel IV which are connected in series; the normally open contact of relay (KH9) and the normally open contact of relay (KH10) are connected in series at the two ends of coil channel I, the normally open contact of relay (KH10) and the normally open contact of relay (KH11) are connected in series at the two ends of coil channel II, the normally open contact of relay (KH11) and the normally open contact of relay (KH12) are connected in series at the two ends of coil channel IV, the normally open contact of relay (KH12) and the normally open contact of relay (KH13) are connected in series at the two ends of coil channel IV, and the normally open contact of relay (KH9) and the normally open contact of relay (KH13) are connected with the positive and negative poles of a power; the high-pressure channel comprises a first high-pressure channel, a second high-pressure channel, a third high-pressure channel and a fourth high-pressure channel; one end of a normally open contact of the relay (KH1) is connected between the normally open contact of the relay (KH9) and the coil channel I, and the other end of the normally open contact of the relay (KH1) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH2) is connected between the normally open contact of the relay (KH10) and the coil channel I, and the other end of the normally open contact of the relay (KH2) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH3) is connected between the normally open contact of the relay (KH10) and the second coil channel, and the other end of the normally open contact of the relay (KH3) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH4) is connected between the normally open contact of the relay (KH11) and the second coil channel, and the other end of the normally open contact of the relay (KH4) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH5) is connected between the normally open contact of the relay (KH11) and the coil channel III, and the other end of the normally open contact of the relay (KH5) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH6) is connected between the normally open contact of the relay (KH12) and the coil channel III, and the other end of the normally open contact of the relay (KH6) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH7) is connected between the normally open contact of the relay (KH12) and the coil channel IV, and the other end of the normally open contact of the relay (KH7) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH8) is connected between the normally open contact of the relay (KH13) and the coil channel IV, and the other end of the normally open contact of the relay (KH8) is connected with the input end of the high-voltage tester.
Furthermore, a pin (Y2) of the PLC is connected with a relay (KA2), and a pin (Y3) of the PLC is connected with a relay (KA 3); the high-voltage tester is provided with a DP9 connecting joint, a pin (REST) of the DP9 connecting joint is connected with a normally open contact of the relay (KA3), and a pin (TEST) of the DP9 connecting joint is connected with a normally open contact of the relay (KA 2); the Pin (PASS) of the DP9 connection connector is connected with the pin (X1) of the PLC controller, and the pin (FAIL) of the DP9 connection connector is connected with the pin (X2) of the PLC controller.
Furthermore, the coil winding box is further provided with a mounting jig, the mounting jig is provided with a plurality of placing grooves, each placing groove is provided with a coil channel in a one-to-one correspondence mode, the box body is provided with a DP9 control connector, a pin 1 of the DP9 control connector is connected with a pin (X4) of a PLC (programmable logic controller), a pin (4) of the DP9 control connector is connected with a pin (X3) of the PLC, and a pin (6) and a pin (7) of the DP9 control connector are connected with electromagnetic valves; the solenoid valve sets up and is used for pressing from both sides tight transformer in the standing groove.
Furthermore, a reset switch is also arranged and is connected with a pin (X4) of the PLC control circuit.
Furthermore, a bad indicating lamp is arranged and connected with a pin (Y4) of the PLC.
The utility model has the advantages that: the utility model provides a transformer withstand voltage test series connection leads to box: whether a plurality of transformers connected in series normally operate is detected through a low-voltage channel, the pressure resistant value of each transformer is detected through a plurality of high-voltage channels connected into a coil channel in parallel, and the switching of the low-voltage channel and the high-voltage channel is controlled through a PLC (programmable logic controller) matched with a relay, so that only one transformer is enabled to be independently powered on to work; the whole process completes automatic switching, and the detection efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a logic circuit diagram of a high voltage channel and a low voltage channel in a series conducting box for a transformer withstand voltage test provided by the present invention;
fig. 2 is a schematic connection diagram of each pin in the PLC controller in the transformer withstand voltage test serial conducting box provided by the present invention;
fig. 3 is a schematic connection diagram of each pin in the PLC controller in the transformer withstand voltage test serial conducting box provided by the present invention;
fig. 4 is a schematic connection diagram of each pin in the PLC controller in the transformer withstand voltage test serial conducting box provided by the present invention;
fig. 5 is a schematic connection diagram of each pin in the PLC controller in the transformer withstand voltage test serial conducting box provided by the present invention;
in the figure: the relay comprises a 1-coil channel I, a 2-coil channel II, a 3-coil channel III, a 4-coil channel IV, a 5-high-voltage channel I, a 6-high-voltage channel II, a 7-high-voltage channel III, a 8-high-voltage channel IV, a 9-PLC controller, a 10-power supply, an 11-DP9 connecting joint, a 12-DP9 control joint, a 13-relay group I and a 14-relay group II.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
According to one aspect of the application, a transformer withstand voltage test series pass box is provided.
Fig. 1 is a block diagram of a transformer withstand voltage test series pass-through box according to some embodiments of the present application.
The transformer withstand voltage test series connection conducting box shown in fig. 1 comprises a box body, and is characterized in that a control board, a high voltage tester, a power supply 10 and a switch are arranged in the box body; the control board is provided with a low-voltage channel, a plurality of high-voltage channels and a PLC (programmable logic controller) 9, the low-voltage channel is provided with a plurality of coil channels which are connected in series, the network transformer to be tested is connected through the coil channels, the two sides of each coil channel are connected in series with contacts of a relay, the specific contacts can be normally open contacts and normally closed contacts, and only the functions of the contacts need to be realized; each high-voltage channel is connected to two ends of one coil channel in parallel, the high-voltage channels are electrically connected with a high-voltage tester, a contact of a relay is arranged between the high-voltage channels and the high-voltage tester, and the same contact can be divided into a normally open contact and a normally closed contact; PLC controller 9 controls the low pressure passageway through the relay and gets electricity alone or a plurality of high-pressure passage gets electricity alone, and specific control mode is for realizing getting electricity alone of low pressure passageway or high-pressure passage through the normally open contact or the normally closed contact of same group relay to switch function between them, reach withstand voltage test and series test's purpose, whole process switches through PLC cooperation relay, does not need manual operation, has satisfied the automation requirement, has improved efficiency of software testing.
It should be noted that, in the present application, there is only one low-voltage channel, and the number of the high-voltage channels is set according to the number of the specific network transformers to be tested, and may be one or more, as long as it is satisfied that each high-voltage channel is connected in series into the low-voltage channel by the above method.
In some embodiments, as shown in fig. 1-4, there are 4 high pressure passages; the PLC controller 9 is a 20MT controller, and a pin (Y0) of the PLC controller 9 is connected with a relay (KA1) and a pin (X3) is connected with a switch.
A normally open contact of the relay (KA1) is connected with a first relay group 13 in series, a normally closed contact of the relay (KA1) is connected with a second relay group 14 in series, and the first relay group 13 comprises a relay (KH9), a relay (KH10), a relay (KH11), a relay (KH12) and a relay (KH13) which are connected in parallel; the second relay group 14 includes a relay (KH1), a relay (KH2), a relay (KH3), a relay (KH4), a relay (KH5), a relay (KH6), a relay (KH7), and a relay (KH8) that are connected in parallel.
The low-voltage channel is connected with a pin (X0) of the PLC 9 and is provided with a coil channel I1, a coil channel II 2, a coil channel III 3 and a coil channel IV 4 which are connected in series; normally open contact of both ends series connection relay (KH9) of coil passageway one 1 and the normally open contact of relay (KH10), the normally open contact of the both ends series connection relay (KH10) of coil passageway two 2 and the normally open contact of relay (KH11), the normally open contact of the both ends series connection relay (KH11) of coil passageway three 3 and the normally open contact of relay (KH12), the normally open contact of the both ends series connection relay (KH12) of coil passageway four 4 and the normally open contact of relay (KH13), the normally open contact of relay (KH9) and the normally open contact of relay (KH13) connect the positive negative pole of power 10.
The high-voltage channels comprise a first high-voltage channel 5, a second high-voltage channel 6, a third high-voltage channel 7 and a fourth high-voltage channel 8, and in the figure 1, XH 1-5 are interfaces for connecting each high-voltage channel with a high-voltage tester; one end of a normally open contact of the relay (KH1) is connected between the normally open contact of the relay (KH9) and the coil channel I1, and the other end of the normally open contact of the relay (KH1) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH2) is connected between the normally open contact of the relay (KH10) and the coil channel I1, and the other end of the normally open contact of the relay (KH2) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH3) is connected between the normally open contact of the relay (KH10) and the coil channel II 2, and the other end of the normally open contact of the relay (KH3) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH4) is connected between the normally open contact of the relay (KH11) and the coil channel II 2, and the other end of the normally open contact of the relay (KH4) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH5) is connected between the normally open contact of the relay (KH11) and the coil channel III 3, and the other end of the normally open contact of the relay (KH5) is connected with the output end of the high-voltage tester; one end of a normally open contact of the relay (KH6) is connected between the normally open contact of the relay (KH12) and the coil channel III 3, and the other end of the normally open contact of the relay (KH6) is connected with the input end of the high-voltage tester; one end of a normally open contact of the relay (KH7) is connected between the normally open contact of the relay (KH12) and the coil channel IV 4, and the other end of the normally open contact of the relay (KH7) is connected with the output end of the high-voltage tester; one end of the normally open contact of the relay (KH8) is connected between the normally open contact of the relay (KH13) and the coil channel four 4, and the other end of the normally open contact of the relay (KH8) is connected with the input end of the high-voltage tester.
The operating principle is as follows, relay (KA1) is connected to pin (Y0) of PLC controller 9, PLC controller 9 control KA1 when getting electricity, the normally open contact intercommunication of relay (KA1), consequently parallelly connected relay (KH9) in relay group 13, relay (KH10), relay (KH11), relay (KH12) and relay (KH13) are electrified simultaneously, at this moment, the normally open contact of series connection relay (KH9), the normally open contact of relay (KH10), the normally open contact of relay (KH11), the normally open contact of relay (KH12) communicates simultaneously, coil passageway one 1 when setting up the normally open contact of relay (KH9) and the normally open contact medium piece of relay (KH10), coil passageway two 2 when setting up the normally open contact medium piece of relay (KH10) and the normally open contact medium piece of relay (KH11), when setting up the coil passageway two coil passageway of normally open contact medium piece of relay (KH 638) and relay passageway three coil passageway (KH3) when setting up the normally open contact piece of relay (KH11) and relay, When the coil channel four 4 of the normally open contact of the relay (KH12) and the normally open contact of the relay (KH13) are in a communicated state, the low-voltage channels are communicated, namely, the four transformers arranged on the coil channels one 1 to four can be communicated with the low-voltage channels only after being completed, so that the problem of the quality of the transformers is tested; the PLC detects the communication of a low-voltage channel through a pin (X0), then the PLC 9 controls the relay (KA1) to lose power, the KA1 normally open contact is disconnected, KH9, KH10, KH11, KH12 and the relay (KH13) lose power simultaneously, the KH9, KH10, KH11, KH12 and the normally open contact of the relay (KH13) are disconnected, and each coil channel is enabled to exist independently; KA1 normally closed contact is closed, KH1, KH2, KH3, KH4, KH5, KH6, KH7 and a relay (KH8) which are connected in parallel are powered at the same time, normally open contacts of the relay (KH1), normally open contacts of the relay (KH2), a high-voltage tester and a coil channel I1 are formed to form a group of high-voltage channels, KH1 and the relay (KH2) are powered on, normally open contacts of the relay (KH1) and normally open contacts of the relay (KH2) are closed, so that the high-voltage channel I5 is communicated, the withstand voltage value of a transformer on the coil channel I1 is tested through the high-voltage tester, it needs to be explained that because KH9 and normally open contacts of the relay (KH10) are disconnected, high voltage can not be transmitted to other circuits through a lead, the equipment performance is ensured, and the service life is prolonged; testing the withstand voltage values of the transformers on the coil channel II 2, the coil channel III 3 and the coil channel IV 4 by the same method; in addition, when a plurality of transformers need to be tested, only more coil channels and relay normally open contacts on two sides of the coil channels need to be connected in series, and meanwhile, each added coil channel is connected with one high-voltage channel in parallel.
Further, in some embodiments, to improve automation, while improving efficiency; as shown in fig. 5, the PLC controller 9 controls the high voltage tester, and a pin (Y2) of the PLC controller 9 is connected to the relay (KA2), and a pin (Y3) is connected to the relay (KA 3); the high-voltage tester is provided with a DB9 connecting joint, a pin (REST) of the DB9 connecting joint is connected with a normally open contact of the relay (KA3), and a pin (TEST) of the DB9 connecting joint is connected with a normally open contact of the relay (KA 2); a Pin (PASS) of the DB9 connection connector is connected with a pin (X1) of the PLC controller 9, and a pin (FAIL) of the DB9 connection connector is connected with a pin (X2) of the PLC controller 9; when the PLC 9 detects that the low-voltage channel is communicated, the control relay (KA2) is powered on, the normally open contact of the relay (KA2) is closed to start the high-voltage tester for testing, and when the PLC 9 obtains a test completion signal of the high-voltage tester from the X1 and the pin (X2), components in the whole circuit are reset, so that the next test is facilitated.
In some embodiments, in order to better fix the network transformer on the coil channel, an installation jig is further provided in the application, it is to be noted that the specific structure and size of the installation jig are not limited at all, the installation jig only needs to be provided with a plurality of placing grooves, each placing groove is provided with one coil channel in a one-to-one correspondence manner, the box body is further provided with a DB9 control connector, one end of the DB9 control connector is connected with the PLC controller, the other end of the DB9 control connector is connected with the solenoid valve, a pin 1 of the DB9 control connector is connected with a pin (X4) of the PLC controller 9, a pin (4) of the DB9 control connector is connected with a pin (X3) of the PLC controller 9, and pins (6) and pins (7) of the DB 9; the electromagnetic valve is arranged in the placing groove and used for clamping the network transformer; after a starting switch is pressed, a high-voltage tester is started through KA2, then 6 pins and 7 pins in a DB9 connector arranged on a box body control the starting and the closing of an electromagnetic valve, and the network transformers placed in a plurality of placing grooves are clamped in sequence; it should be noted that the start and the close of the electromagnetic valve can also be directly controlled by the PLC, which is a conventional technical means in the field and will not be described in detail, a reset switch is provided on a pin (X4) of the other PLC, and a defect indicator lamp is provided on a pin (Y4) of the PLC.
The whole control principle is as follows:
1: in placing network transformer into the standing groove, start whole control circuit and solenoid valve, relay (KA2) got electric, starts high voltage tester, presss from both sides tightly a plurality of network transformer through the solenoid valve.
2: the relay (KA1) is electrified, the low-voltage channels are communicated, and whether the network transformers are communicated or not is tested;
(1) and (3) connecting, disconnecting the relay (KA1), connecting the high-voltage channels, testing a plurality of network transformers by the started high-voltage tester, displaying a test result on the high-voltage tester, receiving OK and NG signals of the high-voltage tester by the PLC 9 through an X1 and a pin (X2) after the test is finished, resetting the relay and the electromagnetic valve, and preparing for the next test.
(2) Not connected, PLC controller 9 waits for a period of time after, directly resets relay and solenoid valve to show the not connected mark through bad pilot lamp.
It should be noted that, the PLC controller 9 is provided with a reset switch to reset the whole control circuit at any time, and in addition, if the solenoid valve is directly controlled by the PLC controller 9, the power-on time of the relay (KA2) may be delayed to start after determining whether the low-voltage channel is connected.
It should be noted that the specific connection circuit in the present application is determined for the DB9 pin high voltage tester and the 20MTPLC controller 9, and when the high voltage tester and the PLC controller 9 of other specifications are adopted, the control logic and the functional requirements in the present application are not violated, which is within the protection scope of the present application.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A series conducting box for voltage withstand test of a transformer comprises a box body and is characterized in that a control board, a high-voltage tester, a power supply and a switch are arranged in the box body;
the control panel is provided with:
the low-voltage channel is provided with a plurality of coil channels which are connected in series;
each high-voltage channel is connected to two ends of one coil channel in parallel and is electrically connected with the high-voltage tester;
the controller is connected with the relay, the normally open contact of the relay is connected with the low-voltage channel in series, and the normally closed contact of the relay is connected with the high-voltage channel in series.
2. The transformer withstand voltage test series pass box of claim 1, wherein the controller is a 20MTPLC controller, and a pin (Y0) of the controller is connected with a relay (KA1) and a pin (X3) is connected with a switch;
the normally open contact of the relay (KA1) is connected with a first relay group in series, the normally closed contact of the relay (KA1) is connected with a second relay group in series, and the first relay group comprises a relay (KH9), a relay (KH10), a relay (KH11), a relay (KH12) and a relay (KH13) which are connected in parallel; the second relay group comprises a relay (KH1), a relay (KH2), a relay (KH3), a relay (KH4), a relay (KH5), a relay (KH6), a relay (KH7) and a relay (KH8) which are connected in parallel;
the low-voltage channel is connected with a pin (X0) of the PLC controller;
the low-voltage channel is provided with a coil channel I, a coil channel II, a coil channel III and a coil channel IV which are connected in series; the two ends of the first coil channel are connected with a normally open contact of the relay (KH9) and a normally open contact of the relay (KH10) in series, the two ends of the second coil channel are connected with a normally open contact of the relay (KH10) and a normally open contact of the relay (KH11) in series, the two ends of the third coil channel are connected with a normally open contact of the relay (KH11) and a normally open contact of the relay (KH12) in series, and the two ends of the fourth coil channel are connected with a normally open contact of the relay (KH12) and a normally open contact of the relay (KH13) in series;
the high-pressure channel comprises a first high-pressure channel, a second high-pressure channel, a third high-pressure channel and a fourth high-pressure channel;
one end of a normally open contact of the relay (KH1) is connected between the normally open contact of the relay (KH9) and the coil channel I, and the other end of the normally open contact of the relay (KH1) is connected with the output end of the high-voltage tester;
one end of a normally open contact of the relay (KH2) is connected between the normally open contact of the relay (KH10) and the coil channel I, and the other end of the normally open contact of the relay (KH2) is connected with the input end of the high-voltage tester;
one end of a normally open contact of the relay (KH3) is connected between the normally open contact of the relay (KH10) and the second coil channel, and the other end of the normally open contact of the relay (KH3) is connected with the output end of the high-voltage tester;
one end of a normally open contact of the relay (KH4) is connected between the normally open contact of the relay (KH11) and the second coil channel, and the other end of the normally open contact of the relay (KH4) is connected with the input end of the high-voltage tester;
one end of a normally open contact of the relay (KH5) is connected between the normally open contact of the relay (KH11) and the coil channel III, and the other end of the normally open contact of the relay (KH5) is connected with the output end of the high-voltage tester;
one end of a normally open contact of the relay (KH6) is connected between the normally open contact of the relay (KH12) and the coil channel III, and the other end of the normally open contact of the relay (KH6) is connected with the input end of the high-voltage tester;
one end of a normally open contact of the relay (KH7) is connected between the normally open contact of the relay (KH12) and the coil channel IV, and the other end of the normally open contact of the relay (KH7) is connected with the output end of the high-voltage tester;
one end of a normally open contact of the relay (KH8) is connected between the normally open contact of the relay (KH13) and the coil channel IV, and the other end of the normally open contact of the relay (KH8) is connected with the input end of the high-voltage tester.
3. The transformer withstand voltage test series pass box of claim 2, characterized in that, pin (Y2) of the PLC controller is connected with relay (KA2), pin (Y3) is connected with relay (KA 3);
the high-voltage tester is provided with a DP9 connecting joint, a pin (REST) of the DP9 connecting joint is connected with a normally open contact of a relay (KA3), and a pin (TEST) of the DP9 connecting joint is connected with a normally open contact of a relay (KA 2); the Pin (PASS) of the DP9 connection connector is connected with the pin (X1) of the PLC controller, and the pin (FAIL) of the DP9 connection connector is connected with the pin (X2) of the PLC controller.
4. The transformer withstand voltage test series connection conducting box according to claim 3, further comprising a mounting fixture, wherein the mounting fixture is provided with a plurality of placing slots, each placing slot is provided with a coil channel in a one-to-one correspondence, the box body is provided with a DP9 control connector, one end of the DP9 control connector is connected with a PLC controller, and the other end of the DP9 control connector is connected with an electromagnetic valve; the pin 1 of the DP9 control connector is connected with a pin (X4) of the PLC, the pin (4) of the DP9 control connector is connected with a pin (X3) of the PLC, and the pin (6) and the pin (7) of the DP9 control connector are connected with a signal end of a solenoid valve; the electromagnetic valve is arranged in the placing groove and used for clamping the transformer.
5. The transformer withstand voltage test series conduction box according to claim 2, further comprising a reset switch, wherein the reset switch is connected to a pin (X4) of the PLC control circuit.
6. The transformer withstand voltage test series conduction box according to claim 2, further comprising a bad indicator light connected to a pin (Y4) of the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021677783.4U CN212872747U (en) | 2020-08-12 | 2020-08-12 | Transformer withstand voltage test series connection switches on box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021677783.4U CN212872747U (en) | 2020-08-12 | 2020-08-12 | Transformer withstand voltage test series connection switches on box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872747U true CN212872747U (en) | 2021-04-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113399273A (en) * | 2021-06-23 | 2021-09-17 | 绵阳宁瑞电子有限公司 | Network transformer production equipment and production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113399273A (en) * | 2021-06-23 | 2021-09-17 | 绵阳宁瑞电子有限公司 | Network transformer production equipment and production process |
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Effective date of registration: 20230512 Address after: 621000 Industrial Park, Yongxing Town, Mianyang High tech Zone, Mianyang City, Sichuan Province Patentee after: Sichuan Jingweida Science and Technology Group Co.,Ltd. Address before: 615700 fruit farm, Yanyuan County, Liangshan Yi Autonomous Prefecture, Sichuan Province Patentee before: SICHUAN CHENHONG ELECTRONICS Co.,Ltd. |