A field commissioning device for feeder automation terminal

Abstract

The present invention relates to a field commissioning device for a feeder automation terminal, which includes a box body and an openable and closable box cover adapted to the box body. An installation space is provided inside the box body. An operation panel is provided above the installation space inside the box body. A closing relay, a tripping relay, an energy storage relay, and a terminal block are arranged in the installation space; a power supply interface, a tripping indicator light, a closing indicator light, and an uncharged indicator light are arranged on the operation panel; an aviation plug interface is arranged on one side wall of the box body; the power supply interface is used to externally connect 220V alternating current. The present invention can effectively solve the problems that when the existing terminal fails or the program needs to be upgraded, it is necessary to use a crane to remove the running FTU device on the pole, transport it back to the warehouse for debugging, and then transport it to the site for installation after the debugging is completed, which is time-consuming and laborious, affects the power supply reliability, and has potential safety hazards.

Description

Technical Field

[0001] The present invention relates to a field debugging device for a feeder automation terminal. Background Art

[0002] With the rapid development of the smart grid in China, the construction of distribution automation has been vigorously carried out everywhere. Feeder automation is one of the important contents of distribution automation, and the feeder automation terminal (FTU) is the basic control unit of feeder automation, which plays a very important role in realizing feeder automation and even distribution automation. However, there is currently no device for the operation and maintenance debugging of the terminal in operation. Once the terminal fails or the program needs to be upgraded, a crane is required to remove the running FTU equipment on the pole, transport it back to the warehouse for debugging, and then transport it back to the site for installation after debugging. This method is both time-consuming and laborious, and affects the power supply reliability.

[0003] For the equipment already installed on the pole, once a failure occurs or the program version needs to be upgraded, the general measure is to cut off the power, and then use a crane to remove the terminal, transport it back to the warehouse and connect it to the pole-mounted circuit breaker to simulate the real working conditions for testing. This is not only time-consuming and laborious, but also has potential safety hazards, and power outage construction is required, which affects the power supply reliability and service quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a field debugging device for a feeder automation terminal, which can effectively solve the problems that when the existing terminal fails or the program needs to be upgraded, a crane is required to remove the running FTU equipment on the pole, transport it back to the warehouse for debugging, and then transport it back to the site for installation after debugging, resulting in time-consuming and laborious work, affecting the power supply reliability, and having potential safety hazards.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a field debugging device for a feeder automation terminal, including a box body and an openable and closable box cover adapted to the box body. An installation space is provided inside the box body. An operation board is provided above the installation space inside the box body. A closing relay, a tripping relay, a energy storage relay, and a terminal block are provided inside the installation space. A power supply interface, a tripping indicator light, a closing indicator light, and an uncharged indicator light are provided on the operation board. An aviation plug interface is provided on one side wall of the box body. The power supply interface is used to externally connect 220V alternating current.

[0006] Both ends of the coil of the closing relay are respectively connected to the closing positive signal control port and the closing negative signal control port in the aviation plug interface through the terminal block.

[0007] Both ends of the coil of the tripping relay are respectively connected to the tripping positive signal control port and the tripping negative signal control port in the aviation plug interface through the terminal block.

[0008] One end of the first normally open contact of the closing relay is connected to the closing positive signal control port, and the other end is connected to one end of the first normally closed contact of the tripping relay. The other end of the first normally closed contact of the tripping relay is connected to the energy storage positive signal control port in the aviation plug interface.

[0009] The second normally open contact of the closing relay and the energy storage relay coil are connected in series and then connected to the power supply interface.

[0010] The normally closed contact of the energy storage relay and the unenergized indicator light are connected in series and then connected to the power supply interface.

[0011] The first double-throw normally closed contact of the closing relay and the tripping indicator light are connected in series and then connected to the power supply interface; the first double-throw normally open contact and the closing indicator light are connected in series and then connected to the power supply interface.

[0012] Both ends of the second double-throw normally closed contact of the closing relay are connected to the remote signaling voltage input terminal and the off-position signal input terminal in the aviation plug interface through the terminal block; both ends of the second double-throw normally open contact are connected to the remote signaling voltage input terminal and the on-position signal input terminal in the aviation plug interface through the terminal block.

[0013] Both ends of the normally open contact of the energy storage relay are connected to the remote signaling voltage input terminal and the unenergized signal input terminal in the aviation plug interface through the terminal block.

[0014] Furthermore, a three-phase multifunctional watt-hour meter and a group of three-phase protection current interfaces, three-phase measurement current interfaces, three-phase supply voltage interfaces, three-phase measurement voltage interfaces, and external three-phase voltage input interfaces are also provided on the operation panel; there are four interfaces respectively for the three-phase protection current interface, three-phase measurement current interface, three-phase supply voltage interface, and three-phase measurement voltage interface, and there are three interfaces for the external three-phase voltage input interface; the multifunctional watt-hour meter is connected to the power supply interface; the three-phase measurement current interface and three-phase measurement voltage interface are simultaneously connected to the multifunctional watt-hour meter and the aviation plug interface in a one-to-one correspondence; the three-phase protection current interface and three-phase supply voltage interface are connected to the aviation socket interface in a one-to-one correspondence.

[0015] Furthermore, the three-phase protection current interface, three-phase measurement current interface, three-phase supply voltage interface, and three-phase measurement voltage interface are arranged in the upper left corner of the operation panel, with a total of four rows, and each row has four interfaces. The first row is the three-phase protection current interface, the second row is the three-phase measurement current interface, the third row is the three-phase supply voltage interface, and the fourth row is the three-phase measurement voltage interface; the colors of the four interfaces in each row are yellow, green, red, and black from left to right in sequence.

[0016] Furthermore, the unenergized indicator light is a white light indicator light, the tripping indicator light is a green light indicator light, and the closing indicator light is a red light indicator light.

[0017] Furthermore, the aviation plug interface is a twenty-six-pin aviation plug interface.

[0018] Advantages of the present invention: It can realize on-site testing of the distribution terminal without power outage or the aid of external tools, and only two people are needed to cooperate to complete the equipment debugging work. On the one hand, the telemetry values such as voltage and current are led to the on-site debugging device of the feeder automation terminal through the aviation plug interface, and the telemetry addition can be realized on the ground, and a multi-functional electricity meter is added to facilitate the display of electric energy. On the other hand, in the on-site debugging device of the feeder automation terminal, the closing relay, opening relay, and energy storage relay simulate the opening and closing of the pole-mounted circuit breaker, and indicator lights are added to indicate the state of the circuit breaker, and the simulation of the protection action situation can be realized, which is convenient for the dispatcher to remotely control and observe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a top view structural diagram of the box body part.

[0021] Figure 3 It is a circuit diagram of the closing relay, opening relay, and energy storage relay;

[0022] Figure 4 It is a schematic diagram of the circuit connection of the multi-functional electricity meter. DETAILED DESCRIPTION OF THE INVENTION

[0023] Embodiment, as Figures 1 to 4 shown, includes a box body 1 and an openable box cover 2 adapted to the box body 1. An installation space is provided inside the box body 1. An operation board 3 is provided above the installation space inside the box body 1. A closing relay 4, an opening relay 5, an energy storage relay 6, a three-phase multi-functional electricity meter 7 and a set of terminal blocks are provided in the installation space. A set of three-phase protection current interfaces 8, three-phase measurement current interfaces 9, three-phase power supply voltage interfaces 10, three-phase measurement voltage interfaces 11, external three-phase voltage input interfaces 12, power supply interfaces 13, opening indicator lights 14, closing indicator lights 15, and uncharged indicator lights 16 are provided on the operation board 3; the display part of the three-phase multi-functional electricity meter 7 is located on the front of the operation board 3; an aviation plug interface 17 is provided on the side wall of the box body 1; the aviation plug interface 17 is a twenty-six-core aviation plug interface.

[0024] Four of each of the three-phase protection current interfaces 8, three-phase measurement current interfaces 9, three-phase power supply voltage interfaces 10, and three-phase measurement voltage interfaces 11 are provided;

[0025] The three-phase multi-functional electricity meter 7 is connected to the three-phase measurement current interfaces 9 and three-phase measurement voltage interfaces 11; the three-phase protection current interfaces 8, three-phase measurement current interfaces 9, three-phase power supply voltage interfaces 10, and three-phase measurement voltage interfaces 11 are connected to the aviation plug interface 17 in one-to-one correspondence through the terminal blocks.

[0026] The power interface 13 is used to connect to 220V AC power supply. The three-phase multifunctional meter 7, the opening indicator light 14, the closing indicator light 15, the uncharged indicator light 16 are connected to the power interface 13.

[0027] Both ends of the coil of the closing relay 4 are respectively connected to the closing positive signal control port and the closing negative signal control port in the aviation plug interface 17 through the terminal block.

[0028] Both ends of the coil of the opening relay 5 are respectively connected to the opening positive signal control port and the opening negative signal control port in the aviation plug interface 17 through the terminal block.

[0029] One end of the first normally open contact K1 of the closing relay 4 is connected to the closing positive signal control port, and the other end is connected to one end of the first normally closed contact K5 of the opening relay 5. The other end of the first normally closed contact K5 of the opening relay 5 is connected to the energy storage positive signal control port in the aviation plug interface 17.

[0030] The second normally open contact K2 of the closing relay 4 and the coil of the energy storage relay 6 are connected in series and then connected to the power interface 13.

[0031] The normally closed contact K6 of the energy storage relay 6 and the uncharged indicator light 16 are connected in series and then connected to the power interface 13.

[0032] The first double-throw normally closed contact K3 of the closing relay 4 and the opening indicator light 14 are connected in series and then connected to the power interface 13; the first double-throw normally open contact K3 and the closing indicator light 15 are connected in series and then connected to the power interface 13.

[0033] Both ends of the second double-throw normally closed contact K4 of the closing relay 4 are connected to the remote signaling voltage input terminal and the off-position signal input terminal in the aviation plug interface 17 through the terminal block; both ends of the second double-throw normally open contact K4 are connected to the remote signaling voltage input terminal and the on-position signal input terminal in the aviation plug interface 17 through the terminal block.

[0034] Both ends of the normally open contact K7 of the energy storage relay 6 are connected to the remote signaling voltage input terminal and the uncharged signal input terminal in the aviation plug interface 17 through the terminal block.

[0035] The three-phase protection current interface 8, the three-phase measurement current interface 9, the three-phase power supply voltage interface 10, and the three-phase measurement voltage interface 11 are respectively provided with four interfaces, and the external three-phase voltage input interface 12 is provided with three interfaces; the multifunctional meter 7 is connected to the power interface 13; the three-phase measurement current interface 9 and the three-phase measurement voltage interface 11 are simultaneously connected to the multifunctional meter 7 and the aviation plug interface 17 in one-to-one correspondence; the three-phase protection current interface 8 and the three-phase power supply voltage interface 10 are connected to the aviation socket interface in one-to-one correspondence.

[0036] The three-phase protection current interface 8, three-phase measurement current interface 9, three-phase power supply voltage interface 10, and three-phase measurement voltage interface 11 are arranged at the upper left corner of the operation panel. There are four rows in total, with four interfaces in each row. The first row is the three-phase protection current interface 8, the second row is the three-phase measurement current interface 9, the third row is the three-phase power supply voltage interface 10, and the fourth row is the three-phase measurement voltage interface 11. The colors of the four interfaces in each row are yellow, green, red, and black from left to right in sequence.

[0037] After the remote closing signal is sent out, the closing relay 4 operates, the energy storage relay 6 (time relay) operates, sends out the remote signaling status signal, the closing indicator light 15 lights up, and the normally open contact closes after the energy storage (time) relay reaches the set time, and the energy storage light lights up. After the remote opening signal is sent out, the opening relay 5 operates, the opening remote signaling status is sent out, and the opening indicator light 14 lights up.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "horizontal", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more. In addition, the term "comprising" and any variation thereof are intended to cover non-exclusive inclusion.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] The terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the exemplary embodiments. Unless the context clearly dictates otherwise, the singular forms "a", "an" used herein are also intended to include the plural. It should also be understood that the terms "comprises" and / or "comprising" specify the presence of the stated features, integers, steps, operations, units and / or components, and do not preclude the presence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0041] The above embodiments are considered from an illustrative rather than a limiting perspective. The scope of the present invention is defined by the scope of the claims, rather than the description, and should be construed to include all differences within the equivalent scope of the present invention. As long as various non-substantial improvements are made by adopting the method concept and technical solution of the present invention; or without improvement, the above concept and technical solution of the present invention are directly applied to other occasions, they are all within the protection scope of the present invention.

Claims

1. A field commissioning device for a feeder automation terminal, characterized in that: It includes a box body and an openable and closable box cover adapted to the box body. An installation space is provided inside the box body. An operation panel is provided above the installation space inside the box body. A closing relay, a tripping relay, an energy storage relay, and a terminal block are provided inside the installation space. A power interface, a tripping indicator light, a closing indicator light, and an uncharged indicator light are provided on the operation panel. An aviation plug interface is provided on one side wall of the box body. The power interface is used to externally connect 220V alternating current. Both ends of the coil of the closing relay are respectively connected to the closing positive signal control port and the closing negative signal control port in the aviation plug interface through the terminal block. Both ends of the coil of the tripping relay are respectively connected to the tripping positive signal control port and the tripping negative signal control port in the aviation plug interface through the terminal block. One end of the first normally open contact of the closing relay is connected to the closing positive signal control port, and the other end is connected to one end of the first normally closed contact of the tripping relay. The other end of the first normally closed contact of the tripping relay is connected to the energy storage positive signal control port in the aviation plug interface. The second normally open contact of the closing relay and the energy storage relay coil are connected in series and then connected to the power interface. The normally closed contact of the energy storage relay and the uncharged indicator light are connected in series and then connected to the power interface. The first double-throw normally closed contact of the closing relay and the tripping indicator light are connected in series and then connected to the power interface. The first double-throw normally open contact and the closing indicator light are connected in series and then connected to the power interface. Both ends of the second double-throw normally closed contact of the closing relay are connected to the remote signaling voltage input terminal and the off-position signal input terminal in the aviation plug interface through the terminal block. Both ends of the second double-throw normally open contact are connected to the remote signaling voltage input terminal and the on-position signal input terminal in the aviation plug interface through the terminal block. Both ends of the normally open contact of the energy storage relay are connected to the remote signaling voltage input terminal and the uncharged signal input terminal in the aviation plug interface through the terminal block.

2. The on-site commissioning device for the feeder automation terminal according to claim 1, characterized in that: A three-phase multifunctional meter, a group of three-phase protection current interfaces, three-phase measurement current interfaces, three-phase power supply voltage interfaces, three-phase measurement voltage interfaces, and an external three-phase voltage input interface are also provided on the operation panel. The three-phase protection current interfaces, three-phase measurement current interfaces, three-phase power supply voltage interfaces, and three-phase measurement voltage interfaces each have four interfaces, and the external three-phase voltage input interface has three interfaces. The multifunctional meter is connected to the power interface. The three-phase measurement current interfaces and three-phase measurement voltage interfaces are simultaneously connected to the multifunctional meter and the aviation plug interface in a one-to-one correspondence. The three-phase protection current interfaces and three-phase power supply voltage interfaces are connected to the aviation socket interface in a one-to-one correspondence.

3. The on-site commissioning device for the feeder automation terminal according to claim 2, characterized in that: The three-phase protection current interfaces, three-phase measurement current interfaces, three-phase power supply voltage interfaces, and three-phase measurement voltage interfaces are provided in the upper left corner of the operation panel, with a total of four rows. Each row has four interfaces. The first row is the three-phase protection current interface, the second row is the three-phase measurement current interface, the third row is the three-phase power supply voltage interface, and the fourth row is the three-phase measurement voltage interface. The colors of the four interfaces in each row are yellow, green, red, and black from left to right in sequence.

4. The on-site commissioning device for the feeder automation terminal according to any one of claims 1 to 3, characterized in that: The uncharged indicator light is a white light indicator light, the tripping indicator light is a green light indicator light, and the closing indicator light is a red light indicator light.

5. The field commissioning device for the feeder automation terminal according to claim 4, wherein: The aviation plug interface is a twenty-six-pin aviation plug interface.

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