CN221039295U - Digital feeder terminal simulation test tool - Google Patents
Digital feeder terminal simulation test tool Download PDFInfo
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- CN221039295U CN221039295U CN202322777197.7U CN202322777197U CN221039295U CN 221039295 U CN221039295 U CN 221039295U CN 202322777197 U CN202322777197 U CN 202322777197U CN 221039295 U CN221039295 U CN 221039295U
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000004088 simulation Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 15
- DSJVDNYAPZJQQX-UHFFFAOYSA-N n-(4-amino-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)-n-methylformamide Chemical compound O=CN(C)C1=C(N)N(C)C(=O)N(C)C1=O DSJVDNYAPZJQQX-UHFFFAOYSA-N 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a digital feeder terminal simulation test tool, which comprises a simulation test tool, wherein one side of the simulation test tool is provided with a digital feeder terminal, the simulation test tool is composed of a magnetic latching relay, a remote control state display module, an analog quantity processing module, an ADMU (analog to digital unit), a digital signal output module and a power input module, the analog quantity processing module comprises a plurality of voltage transformers and a plurality of current transformers; the tool is connected with the digital feeder terminal by using one aviation plug wire, so that complex operation and wiring error faults of wiring for many times are avoided, and the testing efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of automatic detection of power distribution, in particular to a digital feeder terminal simulation test tool.
Background
In a power distribution network, a feeder terminal device (FTU) is used as a common power distribution terminal, and the function of the FTU is mainly automatic isolation of faults and reduction of the influence range of accidents, so that the reliability of the feeder terminal and the reliability of the power distribution network have a close relationship to ensure the reliability of the feeder terminal, and a plurality of tests are often required before an automatic product of the power distribution network is put into normal operation.
However, conventional testing suffers from the following disadvantages:
Most of the primary equipment is high-voltage equipment, and the feeder terminal equipment FTU is required to be placed in a fixed high-voltage site to perform joint debugging test with the primary equipment, however, the building investment of a high-voltage site for a detection link is large, the test scale is limited, the operation is inconvenient, and the high-voltage potential safety hazard exists.
Disclosure of utility model
The utility model aims to provide a digital feeder terminal simulation test tool, which aims to solve the problems that most of primary equipment in the background technology is high-voltage equipment, feeder terminal equipment FTU is required to be placed in a fixed high-voltage field to perform joint debugging test with the primary equipment, however, the establishment investment of one high-voltage field for a detection link is large, the test scale is limited, the operation is inconvenient and the hidden danger of high-voltage safety exists.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a digital feeder terminal simulation test fixture, includes simulation test fixture, one side of simulation test fixture is equipped with digital feeder terminal, simulation test fixture is by magnetic latching relay, remote control state display module, analog quantity processing module, ADMU, digital signal output module and power input module, analog quantity processing module includes a plurality of voltage transformer and a plurality of current transformer.
Preferably, the power input module is connected with the remote control state display module and the ADMU through wires respectively, the power input module mainly provides power for the ADMU and the remote control state display module, and direct current 24V power from the digital feeder terminal is converted into 3.3V and 5V power from the corresponding power module to the ADMU and the remote control state display module to supply power.
Preferably, the analog processing module is connected with the ADMU, and has the function of converting the input signal quantity into a standard analog quantity for the ADMU, wherein the standard analog quantity comprises four voltage and four current signals, and when the input quantity enters the tool, the analog processing module converts the input quantity into a corresponding differential signal for the ADMU to convert.
Preferably, the ADMU is connected with the digital signal output module, and the ADMU converts the digital signal into a digital signal for the FTU to collect.
Preferably, the digital signal output module is connected with the digital feeder terminal through 485 communication, converts the input analog quantity signal into a digital quantity signal, and then transmits the digital quantity signal to the digital feeder terminal for use through 485 communication, and the digital signal output module is mainly realized by a digitizing unit, namely an ADMU.
Preferably, the remote control state display module is connected with the magnetic latching relay, and the remote control state display module is mainly used for simulating the opening and closing states of the breaker switch and feeding back the opening and closing states of the current breaker switch of the digital feeder terminal. The main implementation mode of the logic function is realized by virtue of the magnetic latching relay and the LED lamp, the magnetic latching relay is in an initial state, the state can simulate an initial state of the circuit breaker, a switching-off or switching-on state is matched with the electric-getting characteristics of two coils inside the magnetic latching relay, switching-on (the other coil is powered on) can only be carried out in the switching-off state, and vice versa, so as to simulate the actual switching-on state of the circuit breaker, when the circuit breaker is in the switching-off state, the normally closed node of the magnetic latching relay is connected in series with the LED lamp (red lamp) and a power supply to display the switching-on state of the circuit breaker, and a switching-on position signal is output to the digital feeder terminal, at the moment, the digital feeder terminal operates the switching-on button to control the circuit breaker switch to test the switching-on, the tool relay acts after the switching-on, at the moment, the normally open node of the magnetic latching relay is closed, the switching-off indicating lamp is powered off, the switching-on indicating lamp is powered on in the normally open node loop, the switching-on of the switching-on indicating lamp is powered on, the switching-off state of the switching-on signal is simulated, the whole circuit breaker switch is powered on (green lamp is powered on), and the switching-off state is powered on, and vice versa, and the switching-on signal is indicated to be indicated when the digital energy storage state is output to the digital feeder terminal.
Preferably, the remote control status display module is composed of two pins, namely, RLY2 and YKCOM, wherein the 1 pin of RLY2 is connected with hz+ and the 2 pin of RLY2 is connected with fz+, the 4 pin of RLY2 is connected with YXCOM, the 6 pin of RLY2 is connected with FW LED, the 8 pin of RLY2 is connected with HW LED, the 9 pin of RLY2 is connected with the 15 pin of RLY2, the 11 pin of RLY2 is connected with the 16 pin of RLY2, the 13 pin of RLY2 is connected with R17, R17 is connected with YKCOM, one side of RLY2 is provided with LED3, LED1 and LED2, one end of LED3 is connected with R18, the other end of LED3 is connected with YKCOM, the other end of LED1 is connected with FW, one end of LED2 is connected with R20, and the other end of LED2 is connected with HW 2.
Compared with the prior art, the utility model has the beneficial effects that:
1. The tool simulation primary equipment tool scheme provides the functions of simulating the switching-on and switching-off operation, switching-on and switching-off position signals, energy storage states and analog quantity output of the primary equipment for the digital feeder terminal FTU, can replace the primary equipment to perform simulation test, and has the advantages of small size and light weight, and the convenience is improved;
2. The tool is connected with the digital feeder terminal by using one aviation plug wire, so that complex operation and wiring error faults of wiring for many times are avoided, and the testing efficiency is improved.
Drawings
FIG. 1 is a diagram of the connection of an FTU test fixture of the present utility model with a feeder terminal test frame;
FIG. 2 is a schematic diagram of a remote control display portion of an FTU test fixture according to the present utility model;
FIG. 3 is a schematic diagram of the analog processing portion of the FTU tester of the present utility model.
In the figure: 1. simulating a test tool; 2. a magnetic latching relay; 3. a remote control state display module; 4. a voltage transformer; 5. a current transformer; 6. ADMU; 7. a digital signal output module; 8. a power input module; 9. a digital feeder terminal; 10. and the analog quantity processing module.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-3, the utility model provides a digital feeder terminal simulation test tool, which comprises a simulation test tool 1, wherein one side of the simulation test tool 1 is provided with a digital feeder terminal 9, the simulation test tool 1 comprises a magnetic latching relay 2, a remote control state display module 3, an analog processing module 10, an ADMU6, a digital signal output module 7 and a power input module 8, and the analog processing module 10 comprises a plurality of voltage transformers 4 and a plurality of current transformers 5.
The power input module 8 is respectively connected with the remote control state display module 3 and the ADMU6 through wires, the power input module 8 mainly provides power for the ADMU6 and the remote control state display module 3, and direct current 24V power from the digital feeder terminal 9 is respectively converted into 3.3V and 5V power from the corresponding power module to supply power for the ADMU6 part and power for the remote control state display module 3 part.
The analog processing module 10 is connected with the ADMU6, and has the function of converting an input signal into a standard analog quantity for the ADMU6, wherein the standard analog quantity comprises four voltage and four current signals, and when the input quantity enters the tool, the analog processing module 10 converts the input quantity into a corresponding differential signal for the ADMU6 to convert.
The ADMU6 is connected with the digital signal output module 7, and the ADMU6 converts the digital signal into a digital signal for the FTU to collect.
The digital signal output module 7 is connected with the digital feeder terminal 9 through 485 communication, the digital signal output module 7 converts an input analog quantity signal into a digital quantity signal and then is transmitted to the digital feeder terminal 9 through 485 communication for use, and the digital signal output module 7 is mainly realized by a digitizing unit, namely ADMU 6.
The remote control state display module 3 is connected with the magnetic latching relay 2, and the remote control state display module 3 is mainly used for simulating the opening and closing states of the breaker switch and feeding back the opening and closing states of the current breaker switch to the digital feeder terminal 9. The main implementation mode of the logic function is realized by virtue of the magnetic latching relay 2 and the LED lamp, the magnetic latching relay 2 is in an initial state, the state can simulate an initial state of the circuit breaker, a switching-off or switching-on state is matched with the electric-getting characteristic of two coils inside the magnetic latching relay 2, the switching-on of the other coil can only be conducted under the switching-off state, and vice versa, so as to simulate the actual switching-on state of the circuit breaker, when the circuit breaker is in the switching-off state, the normally closed node of the magnetic latching relay 2 is connected with the LED lamp red light and the power supply in series to display the switching-on state of the circuit breaker, and output a switching-off signal to the digital feeder terminal 9, at the moment, the digital feeder terminal 9 operates the switching-on button to control the circuit breaker switch to test the switching-on tool, the tool relay acts after the switching-on, at the moment, the normally open node of the magnetic latching relay 2 is switched off, the normally open node is switched off, the switching-on indicator lamp is powered on in a normally open node loop, the switching-on state of the LED lamp is simulated, the switching-off process is conducted, the switching-on process is obtained when the whole circuit breaker switch is powered on, and the switching-off state is further, the indicator lamp is used to indicate to switch the switching-off state, and the switching-on state is powered on, and vice versa, when the digital feeder terminal is powered on, and the digital feeder terminal is powered.
The remote control state display module 3 is composed of RLY2 and YKCOM, wherein the 1 end pin of RLY2 is connected with HZ+, the 2 end pin of RLY2 is connected with FZ+, the 4 end pin of RLY2 is connected with YXCOM, the 6 end pin of RLY2 is connected with FW LED, the 8 end pin of RLY2 is connected with HW LED, the 9 end pin of RLY2 is connected with the 15 end pin of RLY2, the 11 end pin of RLY2 is connected with the 16 end pin of RLY2, the 13 end pin of RLY2 is connected with R17, R17 is connected with YKCOM, one side of RLY2 is provided with LED3, LED1 and LED2, one end of LED3 is connected with R18, the other end of LED3 is connected with YKCOM, one end of LED1 is connected with R19, the other end of LED1 is connected with FW, one end of LED2 is connected with R20, and the other end of LED2 is connected with HW.
When the embodiment of the application is used, the following steps are adopted: the analog quantity of the digital feeder terminal FTU is acquired by digital signals, the analog signals are converted into digital signals through accessing the ADMU6 and are used for the FTU acquisition, the acquired signals enter the analog test tool 1 and are converted into differential voltage signals through a mutual inductor, analog-to-digital conversion is performed on the acquired signals entering the ADMU6, then the analog-to-digital conversion is performed through accessing the FTU through an aviation plug wire, the digital feeder terminal 9 stores energy for 24V output according to the characteristics of the digital feeder terminal 9, a power input module is directly provided by the energy storage output of the digital feeder terminal 9, the switching-on/off remote control is performed through controlling the magnetic latching relay 2 to add an indicator lamp, the remote signaling part is also used for performing analog remote control state and outputting a shaking signal to switch on the tool switching-on/off relay when the digital feeder terminal 9 outputs the switching-on signal, the tool switching-off relay is switched on and outputs the switching-on signal to perform analog once equipment switching-off state when the digital feeder terminal 9 outputs the switching-on signal.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a digital feeder terminal simulation test fixture, includes simulation test fixture (1), its characterized in that: one side of simulation test fixture (1) is equipped with digital feeder terminal (9), simulation test fixture (1) is by magnetic latching relay (2), remote control state display module (3), analog quantity processing module (10), ADMU (6), digital signal output module (7) and power input module (8), analog quantity processing module (10) include a plurality of voltage transformer (4) and a plurality of current transformer (5).
2. The digital feeder terminal simulation test tool according to claim 1, wherein: the power input module (8) is respectively connected with the remote control state display module (3) and the ADMU (6) through wires.
3. The digital feeder terminal simulation test tool according to claim 1, wherein: the analog processing module (10) is connected with the ADMU (6).
4. The digital feeder terminal simulation test tool according to claim 1, wherein: the ADMU (6) is connected with the digital signal output module (7).
5. The digital feeder terminal simulation test tool according to claim 1, wherein: the digital signal output module (7) is connected with the digital feeder terminal (9) through 485 communication.
6. The digital feeder terminal simulation test tool according to claim 1, wherein: the remote control state display module (3) is connected with the magnetic latching relay (2).
7. The digital feeder terminal simulation test tool according to claim 1, wherein: the remote control state display module (3) is composed of RLY2 and YKCOM, the 1 end pin of RLY2 is connected with HZ+, the 2 end pin of RLY2 is connected with FZ+, the 4 end pin of RLY2 is connected with YXCOM, the 6 end pin of RLY2 is connected with FW LED, the 8 end pin of RLY2 is connected with HW LED, the 9 end pin of RLY2 is connected with the 15 end pin of RLY2, the 11 end pin of RLY2 is connected with the 16 end pin of RLY2, the 13 end pin of RLY2 is connected with R17, R17 is connected with YKCOM, one side of RLY2 is provided with LED3, LED1 and LED2, one end of LED3 is connected with R18, the other end of LED3 is connected with YKCOM, the other end of LED1 is connected with FW, one end of LED2 is connected with R20, and the other end of LED2 is connected with HW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777197.7U CN221039295U (en) | 2023-10-17 | 2023-10-17 | Digital feeder terminal simulation test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777197.7U CN221039295U (en) | 2023-10-17 | 2023-10-17 | Digital feeder terminal simulation test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039295U true CN221039295U (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322777197.7U Active CN221039295U (en) | 2023-10-17 | 2023-10-17 | Digital feeder terminal simulation test tool |
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| Country | Link |
|---|---|
| CN (1) | CN221039295U (en) |
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2023
- 2023-10-17 CN CN202322777197.7U patent/CN221039295U/en active Active
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