Analog switch box of power distribution terminal

Abstract

The utility model discloses a power distribution terminal analog switch box, comprising a closing module comprising a manual closing switch, an opening closing switch and a closing coil; when the manual closing switch or the opening closing switch is closed, the closing coil is closed, and the closing coil is connected with a closing position acquisition input port of the distribution automation terminal; the opening module comprises a manual opening switch, an opening-in opening switch and an opening coil, an input interface of the opening-in opening switch is connected with an opening outlet of the distribution automation terminal, and when an opening signal of the opening outlet is received, the opening-in opening switch is closed; when the manual opening switch or the opening-in opening switch is closed, the opening coil is closed, and the opening coil is connected with an opening acquisition input port of the distribution automation terminal. According to the utility model, related tests on the power distribution automation terminal can be realized, the debugging efficiency of the power distribution automation terminal is effectively ensured, and safe and reliable operation of a power distribution network is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution automation terminal testing of an electric power system, in particular to a power distribution terminal simulation switch box. Background Art

[0002] As an important equipment for distribution network automation, the stable and reliable functions and performance of the distribution automation terminal FTU directly affect the safety of electricity use and property safety for industry and residents. Due to my country's vast area, large population, and large industrial scale, there are many corresponding distribution network projects and the corresponding distribution terminals are large in scale. In order to achieve safe and reliable distribution networks, relevant enterprises and units must invest a lot of manpower and material resources to carry out inspection and testing of distribution terminals, whether from the factory inspection of distribution terminal manufacturers or the acceptance inspection and annual inspection tests of power companies. At present, in the network access and joint debugging of distribution automation terminals, the distribution terminals are mainly tested in conjunction with analog switches. However, in the detection of analog switch FTU, there are currently the following problems:

[0003] 1) Current analog switches are generally large in size and difficult to wire, which requires high proficiency of on-site staff;

[0004] 2) Currently, the batch factory debugging of FTU on site relies more on a primary switch to verify whether the switch opening and closing of the FTU device is operating normally. Utility Model Content

[0005] The main purpose of the utility model is to provide a distribution terminal simulation switch box to solve the problems of cumbersome wiring and disadvantageous one-key closed-loop joint debugging test faced by current distribution automation terminals in related debugging tests.

[0006] The technical solution adopted by the utility model is:

[0007] Provided is a power distribution terminal simulation switch box, comprising:

[0008] The closing module includes a manual closing switch, an opening-in closing switch and a closing coil. The input interface of the opening-in closing switch is connected to the closing position output of the distribution automation terminal. When a closing signal from the closing position output is received, the opening-in closing switch is closed; when the manual closing switch or the opening-in closing switch is closed, the closing coil is closed, and the closing coil is connected to the closing position acquisition input port of the distribution automation terminal;

[0009] The opening module includes a manual opening switch, an opening switch and a opening coil. The input interface of the opening switch is connected to the position output of the distribution automation terminal. When the position output receives the opening signal, the opening switch is closed; when the manual opening switch or the opening switch is closed, the opening coil is closed, and the opening coil is connected to the position acquisition input port of the distribution automation terminal.

[0010] According to the above technical solution, the closing module also includes a closing signal indicator light. When the manual closing switch or the open-close switch is closed, the closing signal indicator light emits a closing indication light.

[0011] According to the above technical solution, the opening module also includes an opening signal indicator light. When the manual opening switch or the opening switch is closed, the opening signal indicator light emits an opening indication light.

[0012] According to the above technical solution, the power distribution terminal simulation switch box includes a box body, and the manual closing switch and the manual opening switch are both arranged on the box body.

[0013] According to the above technical solution, the box body is also provided with a closing signal indicator light and an opening signal indicator light.

[0014] According to the above technical solution, both the closing module and the opening module are powered by a power supply interface, and the power supply interface is connected to at least one indicator light for indicating whether power is supplied.

[0015] In accordance with the above technical solution, the power distribution terminal simulation switch box also includes a low pressure lock signal interface and a corresponding signal indicator light.

[0016] According to the above technical solution, the analog switch box of the distribution terminal is connected to the outside through the analog switch loop interface, including 2 pairs of open input interfaces and 5 pairs of open output interfaces; among them, 2 pairs of open input interfaces are closing input ports and opening input ports, which are respectively connected to the closing outlet and opening outlet of the distribution automation terminal; among them, 2 pairs of open output interfaces are closing output ports and opening output ports, which are respectively connected to the closing collection input port and opening collection input port of the distribution automation terminal; the remaining 3 pairs of open output interfaces are energy storage, no energy storage, and low pressure locking output ports.

[0017] According to the above technical solution, the power distribution terminal simulation switch box is directly connected to the power distribution automation terminal through an aviation plug.

[0018] According to the above technical solution, the aviation plug is arranged on the back of the analog switch box of the power distribution terminal.

[0019] The beneficial effects of the utility model are as follows: the power distribution terminal simulation switch box of the utility model realizes the opening and closing operations by setting a manual switch, and responds to the closing and opening signals sent by the power distribution automation terminal through the simulation switch, thereby transmitting the simulated opening / closing position signal to the power distribution automation terminal, realizing the relevant tests of the power distribution automation terminal, effectively ensuring the debugging efficiency of the power distribution automation terminal, and ensuring the safe and reliable operation of the power distribution network.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 It is a front view schematic diagram of the power distribution terminal simulation switch box of the embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of an analog switch loop interface of an embodiment of the utility model;

[0024] Figure 3 This is a working principle diagram of the power distribution simulation switch box of the utility model embodiment;

[0025] Figure 4 It is a circuit schematic diagram of a power distribution terminal simulation switch box according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] The utility model mainly designs a power distribution terminal simulation switch box to solve the problems faced by the current FTU device in related debugging tests, such as complicated wiring and being unfavorable for one-key closed-loop joint debugging test.

[0028] The power distribution terminal simulation switch box of the utility model embodiment includes:

[0029] The closing module includes a manual closing switch, an opening-in closing switch and a closing coil. The input interface of the opening-in closing switch is connected to the closing position output of the distribution automation terminal. When a closing signal from the closing position output is received, the opening-in closing switch is closed; when the manual closing switch or the opening-in closing switch is closed, the closing coil is closed, and the closing coil is connected to the closing position acquisition input port of the distribution automation terminal;

[0030] The opening module includes a manual opening switch, an opening switch and a opening coil. The input interface of the opening switch is connected to the position output of the distribution automation terminal. When the position output receives the opening signal, the opening switch is closed; when the manual opening switch or the opening switch is closed, the opening coil is closed, and the opening coil is connected to the position acquisition input port of the distribution automation terminal.

[0031] Furthermore, the closing module also includes a closing signal indicator light. When the manual closing switch or the input closing switch is closed, the closing signal indicator light emits a closing indication light.

[0032] The opening module also includes an opening signal indicator light. When the manual opening switch or the opening switch is closed, the opening signal indicator light emits an opening indication light.

[0033] The power distribution terminal analog switch box adopts a modular structure design, which can be connected to the outside through the analog switch loop interface. Figure 2 As shown, the analog switch loop interface has 2 pairs of inputs and 5 pairs of outputs (the inputs and outputs are based on the power distribution terminal, and the outputs refer to the signals output by the power distribution terminal, which are the remote signal signals to the master station). The 2 pairs of inputs are the closing input port and the opening input port, respectively. These 2 pairs of inputs are connected to the closing position output and the opening position output of the FTU, respectively, and are mainly used to collect the switch opening and closing position signals of the FTU, and are used to realize the analog switch responding to the output control signal of the FTU; the 2 pairs of outputs are the closing position output port and the opening position output port, respectively connected to the closing position acquisition and opening position acquisition input ports of the FTU, and are mainly used to simulate the switch opening and closing signals to be transmitted to the FTU device. The remaining 3 pairs of outputs are energy storage, no energy storage, and low pressure lock. These output interfaces are also mainly used to simulate the switch opening and closing signals to be transmitted to the FTU.

[0034] In another embodiment of the utility model, the overall structure of the power distribution terminal simulation switch box includes a simulation switch circuit interface module, a manual opening and closing control switch and a position signal indicator module. Among them, the simulation switch circuit interface module includes an interval simulation switch, whose interface adopts a banana plug and an aviation plug interface, and has a closing and opening output contact and a closing control and opening control input interface, and each simulation switch works independently; the manual opening and closing control switch and position signal indicator module includes a current position indicator light of the current interval simulation switch and a switch opening and closing position switching button, and the signal indicator and the position switching button all work independently.

[0035] The power distribution terminal simulation switch box is equipped with banana plugs and aviation plugs to meet various wiring conditions on site, whether it is a closed-loop one-button test or FTU batch factory debugging. The overall structure adopts a modular design, which can effectively reduce the size and weight of the equipment, making it easy to carry. It solves the problems of cumbersome wiring and one-button closed-loop joint debugging during the FTU device debugging process, effectively ensuring the debugging efficiency of the distribution automation terminal and ensuring the safe and reliable operation of the distribution network.

[0036] like Figure 1As shown in the figure, the front of the power distribution terminal simulation switch box is the indicator light and the manual control button part. The manual opening and closing control switch and the position signal indicator light are mainly used to manually control the current opening and closing operations and position display. When the closing button is clicked, the closing output port of the simulation switch circuit interface will be closed, and the corresponding closing indicator light will light up. When the opening button is clicked, the opening output port of the simulation switch circuit interface will be closed, and the corresponding opening indicator light will light up. When the device receives signals such as "energy storage", "no energy storage", "low pressure lock", etc., the corresponding indicator light will light up. The 24V power supply interface of energy storage + and energy storage - is mainly used to provide power supply for the entire simulation switch.

[0037] The back of the power distribution terminal analog switch box is the secondary fusion 14-core aviation plug socket part. This part provides the switch box with the function of directly connecting to the FTU device.

[0038] like Figure 3 , 4 As shown, the switch box mainly includes the following operations:

[0039] 1) Opening and closing operation: The opening and closing outputs of FTU are respectively connected to the opening input and closing input switch ports of the analog switch. When the opening / closing input switch port of the analog switch receives the corresponding switch input opening / closing position signal, the opening / closing relay and coil are closed. On the one hand, the current switch position status is displayed through the opening / closing indicator light, and on the other hand, the opening / closing output switch contacts of the analog switch are driven to close, and the relevant opening / closing position is transmitted to the FTU device.

[0040] 2) Manual opening and closing operation: The opening and closing outputs of the FTU are respectively connected to the opening input and closing input switching ports of the analog switch. The opening / closing operation button of the analog switch is manually controlled to close the opening / closing relay and coil of the corresponding circuit. On the one hand, the current switch position status is displayed through the opening / closing indicator light, and on the other hand, the opening / closing output switching connection point of the analog switch is driven to close, and the relevant opening / closing position is transmitted to the FTU device.

[0041] In summary, for the opening and closing control input interface of the analog switch box of the distribution terminal, its operation control has two modes, namely, open-in opening / closing and manual opening / closing. Open-in opening / closing is to drive the opening and closing relays through the switch contact loop signal to realize the opening and closing operations of the analog switch. It mainly receives the tripping and closing output contacts from the distribution automation terminal such as FTU; manual opening / closing is to drive the opening and closing relays through manual operation buttons, and finally manually control the opening and closing operations of the analog switch to realize the opening and closing operations of the analog switch. It can mainly cooperate with the distribution terminal test device to realize the one-button closed-loop test of the FTU device using the analog switch without manual intervention in the process. At the same time, when receiving relevant control instructions, the opening and closing control operation module uses the operating mechanism control circuit of the anti-tripping locking control module to determine the timing of the opening and closing control commands, and correctly transmits the opening and closing operation instructions to the opening and closing relay output control module, and finally transmits the opening and closing control commands received by the analog switch to the distribution automation terminal through the opening output and closing output open contacts.

[0042] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A power distribution terminal simulation switch box, characterized in that: include: The closing module includes a manual closing switch, an opening-in closing switch and a closing coil. The input interface of the opening-in closing switch is connected to the closing position output of the distribution automation terminal. When a closing signal from the closing position output is received, the opening-in closing switch is closed; when the manual closing switch or the opening-in closing switch is closed, the closing coil is closed, and the closing coil is connected to the closing position acquisition input port of the distribution automation terminal; The opening module includes a manual opening switch, an opening switch and an opening coil. The input interface of the opening switch is connected to the opening outlet of the power distribution automation terminal. When the opening signal of the opening outlet is received, the opening switch is closed. When the manual opening switch or the opening switch is closed, the opening coil is closed, and the opening coil is connected to the position acquisition input port of the distribution automation terminal.

2. The power distribution terminal simulation switch box according to claim 1, characterized in that: The closing module also includes a closing signal indicator light. When the manual closing switch or the opening and closing switch is closed, the closing signal indicator light emits a closing indication light.

3. The power distribution terminal simulation switch box according to claim 1, characterized in that: The opening module also includes an opening signal indicator light. When the manual opening switch or the opening switch is closed, the opening signal indicator light emits an opening indication light.

4. The power distribution terminal simulation switch box according to claim 1, characterized in that: The power distribution terminal simulation switch box comprises a box body, and a manual closing switch and a manual opening switch are both arranged on the box body.

5. The power distribution terminal simulation switch box according to claim 4, characterized in that: The box body is also provided with a closing signal indicator light and an opening signal indicator light.

6. The power distribution terminal simulation switch box according to claim 1, characterized in that: The closing module and the opening module are both powered by a power supply interface, and the power supply interface is connected to at least one indicator light for indicating whether power is supplied.

7. The power distribution terminal simulation switch box according to claim 1, characterized in that: The power distribution terminal simulation switch box also includes a low-pressure lock signal interface and a corresponding signal indicator light.

8. The power distribution terminal simulation switch box according to any one of claims 1 to 7, characterized in that: The analog switch box of the distribution terminal is connected to the outside through the analog switch loop interface, including 2 pairs of open input interfaces and 5 pairs of open output interfaces; among them, 2 pairs of open input interfaces are closing input ports and opening input ports, which are respectively connected to the closing position outlet and opening position outlet of the distribution automation terminal; among them, 2 pairs of open output interfaces are closing position output ports and opening position output ports, which are respectively connected to the closing position collection input port and opening position collection input port of the distribution automation terminal; the remaining 3 pairs of open output interfaces are energy storage, no energy storage, and low air pressure locking output ports.

9. The power distribution terminal simulation switch box according to claim 8, characterized in that: The power distribution terminal simulation switch box is directly connected to the power distribution automation terminal through an aviation plug.

10. The power distribution terminal simulation switch box according to claim 9, characterized in that: The aviation plug is set on the back of the power distribution terminal analog switch box.

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