CN211856644U - Analog switch circuit based on distribution automation terminal test - Google Patents
Analog switch circuit based on distribution automation terminal test Download PDFInfo
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- CN211856644U CN211856644U CN201922086673.4U CN201922086673U CN211856644U CN 211856644 U CN211856644 U CN 211856644U CN 201922086673 U CN201922086673 U CN 201922086673U CN 211856644 U CN211856644 U CN 211856644U
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Abstract
The utility model relates to an analog switch circuit based on distribution automation terminal test, include: the system comprises a plurality of relays, a wide power supply, a three-remote module, an indicator lamp module, an energy storage unit, an FTU (fiber to the Unit) and a DTU (data transfer unit) interface; the closed position of the indicator light module is sequentially connected with the relays JDQ0-8 and JDQ0-12, the separated position of the indicator light module is connected with the relays JDQ0-4, and the energy storage indicator light is sequentially connected with the relays KG1-2 and KG 1-4; the closed position of the remote control module is sequentially connected with a JDQ1 normally closed coil and a JDQ0 coil; the energy storage unit is sequentially connected with a JDQ0 normally open coil, a JDQ1 normally closed coil and a JDQ0 coil; the tap of the remote control module is connected with the coil of JDQ 1. The utility model discloses can reduce the wiring time, the wiring degree of difficulty and wiring mistake to improve the testing process, improve detection efficiency.
Description
Technical Field
The utility model relates to a distribution terminal tests technical field, concretely relates to analog switch circuit based on distribution automation terminal test.
Background
Along with the continuous deep development of national grid distribution automation, in order to improve distribution network automation reliability, from the angle that domestic distribution automation engineering construction and distribution automation equipment detected, combine grid distribution automation equipment to detect the current situation, for DTU, FTU's detection provides one set of reliable analog switch.
The FTU and the DTU are important equipment in power distribution automation construction, so the detection reasonability of the FTU and the DTU is an important index for improving the operation reliability of the power distribution network.
In recent years, with the implementation of a national distribution automation line and the access of newly added secondary equipment, a production team faces the debugging tasks of a plurality of FTUs and DTUs. The operating personnel need to frequently connect and change the wire on the pole, the current wire with larger mass is inserted on the current terminal, in order to avoid the falling off, the operating personnel need to hold by hand, which wastes time and labor; for an overhigh FTU, a bucket arm vehicle is also needed to be used for conveying personnel and relay protection equipment to the pole, and time is consumed; some equipment cabinet doors are inwards opened, so that the operation on the rods is quite difficult, and the conditions of wrong wiring and virtual connection are easy to occur; when a simulated tripping test is carried out, at least 6 wires need to be detached and wound by an insulating adhesive tape, at least 12 external wires exist at the moment, the external wires are very disordered, and a large potential safety hazard exists; moreover, long-time aloft work has a large safety risk. Therefore, the simulation switch for the test can greatly reduce the hidden trouble.
In addition, corresponding wiring and debugging time are required to be carried out in the DTU and FTU field detection process due to power failure operation, wiring difficulty is high, and power failure time is long.
Disclosure of Invention
In view of this, the utility model aims at providing an analog switch circuit based on distribution automation terminal test can reduce the wiring time, the wiring degree of difficulty and wiring mistake to improve testing process, improve detection efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an analog switch circuit based on distribution automation terminal testing, comprising: the system comprises a plurality of relays, a wide power supply, a three-remote module, an indicator lamp module, an energy storage unit, an FTU (fiber to the Unit) and a DTU (data transfer unit) interface; the closed position of the indicator light module is sequentially connected with the relays JDQ0-8 and JDQ0-12, the separated position of the indicator light module is connected with the relays JDQ0-4, and the energy storage indicator light is sequentially connected with the relays KG1-2 and KG 1-4; the closed position of the remote control module is sequentially connected with a JDQ1 normally closed coil and a JDQ0 coil; the energy storage unit is sequentially connected with a JDQ0 normally open coil, a JDQ1 normally closed coil and a JDQ0 coil; the tap of the remote control module is connected with the coil of JDQ 1.
Further, the circuit also comprises a backup power module and a terminal strip unit.
Furthermore, the terminal row unit comprises three remote terminals, a direct current terminal, an energy storage terminal and a switching-on/off terminal; the terminal block units are connected to relays JDQ0 and JDQ1, respectively.
Furthermore, the three remote terminals adopt remote control ends with pressing plates.
Furthermore, two groups of terminals with safety are adopted as the direct current terminals, one group of the terminals is connected with 24V direct current led down from the aviation plug, and the other group of the terminals is used as the direct current terminals for debugging.
Furthermore, FTU, DTU interface adopt FTU, DTU special interface to there is the connecting wire to be equipped with, directly links to each other with FTU, DTU through the aviation plug.
Compared with the prior art, the utility model following beneficial effect has:
the utility model discloses can reduce the wiring time, the wiring degree of difficulty and wiring mistake to improve the testing process, improve detection efficiency.
Drawings
Fig. 1 is a circuit diagram of an indicator light circuit according to an embodiment of the present invention;
fig. 2 is a diagram of a remote control circuit according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a relay according to an embodiment of the present invention;
fig. 4 is an FTU interface diagram according to an embodiment of the present invention;
fig. 5 is a DTU interface diagram in an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 1, the utility model provides an analog switch circuit based on distribution automation terminal test, include: the system comprises a plurality of relays, a wide power supply, a three-remote module, an indicator lamp module, an energy storage unit, an FTU (fiber to the Unit) and a DTU (data transfer unit) interface; the closed position of the indicator light module is sequentially connected with the relays JDQ0-8 and JDQ0-12, the separated position of the indicator light module is connected with the relays JDQ0-4, and the energy storage indicator light is sequentially connected with the relays KG1-2 and KG 1-4; the closed position of the remote control module is sequentially connected with a JDQ1 normally closed coil and a JDQ0 coil; the energy storage unit is sequentially connected with a JDQ0 normally open coil, a JDQ1 normally closed coil and a JDQ0 coil; the tap of the remote control module is connected with the coil of JDQ 1.
In this embodiment, the indicator light module can indicate the closing position, the separating position and the energy storage of the analog switch.
In this embodiment, the circuit further includes a backup power module and a terminal strip unit, where the terminal strip unit includes a three-remote terminal, a dc terminal, an energy storage terminal, and a switching terminal; the terminal block units are connected to relays JDQ0 and JDQ1, respectively. The three remote terminals adopt remote control ends with pressing plates. The DC terminals are two groups of terminals with safety, one group of the terminals is connected with 24V DC led down from the aviation plug, and the other group of the terminals is used as the DC terminals for debugging.
In this embodiment, the wide power source is a field test that the power input can be suitable for multiple types of DTUs and FTUs, specifically, a 48V working power source from the DTU, a 24V working power source from the FTU, and a 220V working power source connected by a 3-hole plug.
In this embodiment, as shown in fig. 4 and 5, the interfaces of the FTU and the DTU are dedicated interfaces for the FTU and the DTU, and are provided with connecting wires, which are directly connected to the FTU and the DTU through aviation plugs.
In this embodiment, when the circuit is used specifically, the function test of the distribution automation terminal needs to judge the switching-off and switching-on operation of the distribution automation terminal on the switch, and the relay is used for controlling and feeding back the switching-off and switching-on operation through the indicator light, so that the whole test process is realized. The three-remote module has remote signaling, remote control and remote measuring functions for the device. The energy storage unit is an energy storage unit of the analog switch, and the energy storage indicating lamp can be lightened when no energy is stored. The interfaces of the FTU and the DTU are designed to be interfaces special for the FTU and the DTU, and connecting wires are directly connected with the FTU and the DTU through different aviation plugs for reducing the wiring time in field test,
the above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (6)
1. An analog switch circuit based on distribution automation terminal testing, comprising: the system comprises a plurality of relays, a wide power supply, a three-remote module, an indicator lamp module, an energy storage unit, an FTU (fiber to the Unit) and a DTU (data transfer unit) interface; the closed position of the indicator light module is sequentially connected with the relays JDQ0-8 and JDQ0-12, the separated position of the indicator light module is connected with the relays JDQ0-4, and the energy storage indicator light is sequentially connected with the relays KG1-2 and KG 1-4; the closed position of the remote control module is sequentially connected with a JDQ1 normally closed coil and a JDQ0 coil; the energy storage unit is sequentially connected with a JDQ0 normally open coil, a JDQ1 normally closed coil and a JDQ0 coil; the tap of the remote control module is connected with the coil of JDQ 1.
2. The distribution automation terminal test-based analog switching circuit of claim 1, wherein: the circuit also includes a backup power module and a terminal strip unit.
3. The distribution automation terminal test-based analog switching circuit of claim 2, wherein: the terminal row unit comprises three remote terminals, a direct current terminal, an energy storage terminal and a switching-on/off terminal; the terminal block units are connected to relays JDQ0 and JDQ1, respectively.
4. The distribution automation terminal test-based analog switching circuit of claim 3, wherein: the three remote terminals adopt remote control ends with pressing plates.
5. The distribution automation terminal test-based analog switching circuit of claim 3, wherein: the DC terminals are two groups of terminals with safety, one group of the terminals is connected with 24V DC led down from the aviation plug, and the other group of the terminals is used as the DC terminals for debugging.
6. The distribution automation terminal test-based analog switching circuit of claim 1, wherein: FTU, DTU interface adopt FTU, DTU special interface to there is the connecting wire, directly links to each other with FTU, DTU through the aviation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086673.4U CN211856644U (en) | 2019-11-28 | 2019-11-28 | Analog switch circuit based on distribution automation terminal test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086673.4U CN211856644U (en) | 2019-11-28 | 2019-11-28 | Analog switch circuit based on distribution automation terminal test |
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| CN211856644U true CN211856644U (en) | 2020-11-03 |
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| CN201922086673.4U Active CN211856644U (en) | 2019-11-28 | 2019-11-28 | Analog switch circuit based on distribution automation terminal test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092943A (en) * | 2021-04-12 | 2021-07-09 | 广东电网有限责任公司阳江供电局 | Automatic change circuit simulation case |
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2019
- 2019-11-28 CN CN201922086673.4U patent/CN211856644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092943A (en) * | 2021-04-12 | 2021-07-09 | 广东电网有限责任公司阳江供电局 | Automatic change circuit simulation case |
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