Integrated wiring system for GIL density meter cable wiring

Abstract

The utility model discloses an integrated wiring system for GIL density meter cable wiring, which comprises a plurality of density meters arranged in a down-leading pipeline, the density meters are electrically connected with a first end of a switching box through cables, a second end of the switching box is electrically connected with a monitoring cabinet, the switching box is used for receiving signals sent by the plurality of density meters, and the density meters are connected with the monitoring cabinet through cables. And the data are collected and transmitted to the monitoring cabinet. By designing the switching box, adjacent density meter cable signals are gathered, the number of cables and the construction workload are greatly reduced, meanwhile, the total length of the cable trough box and the metal protection pipe is reduced, and the production cost and the labor cost and the time cost of cable laying by personnel are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage power equipment monitoring technology, specifically to an integrated wiring system for GIL density meter cable wiring. Background Technology

[0002] Density meters are crucial monitoring devices for high-voltage switchgear, and the reliability and stability of their data transmission are essential for the normal operation of the switchgear. Gas-insulated metal-enclosed transmission lines (GILs) are generally long, with a large number of density meters. Each density meter requires its own conduit for cable laying to the monitoring cabinet, resulting in long cable runs, high construction intensity, and high material and labor costs.

[0003] Therefore, how to aggregate the signals of nearby density meter cables to reduce the number of cables and the amount of construction work is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes the following technical solution:

[0005] This utility model embodiment provides an integrated cabling system for GIL density meter cable wiring, including:

[0006] Multiple density meters are installed in the lower conduit. The density meters are electrically connected to the first end of a junction box via cables. The second end of the junction box is electrically connected to the monitoring cabinet. The junction box is used to receive signals sent by the multiple density meters and collect and transmit them to the monitoring cabinet.

[0007] In one possible implementation, the adapter box is provided with multiple terminal blocks, each terminal corresponding to a cable core of a density table.

[0008] In one possible implementation, the density meter includes a first density relay, a second density relay, and a third density relay. The first contact of the first density relay is electrically connected to terminal P3:3 in the adapter box via a first sub-cable core. The second contact of the first density relay is electrically connected to terminal P3:7 in the adapter box via a second sub-cable core. The first contact of the second density relay is electrically connected to terminal P3:3 in the adapter box via a first sub-cable core, and the second contact of the second density relay is electrically connected to terminal P3:7 in the adapter box via a second sub-cable core. The first contact of the third density relay is electrically connected to terminal P3:2 in the adapter box via a first sub-cable core, and the second contact of the third density relay is electrically connected to terminal P3:6 in the adapter box via a second sub-cable core.

[0009] In one possible implementation, the third contact of the first density relay is electrically connected to terminal P3:11 in the adapter box via the third wire of the first sub-cable, and the fourth contact of the first density relay is electrically connected to terminal P3:13 in the adapter box via the fourth wire of the first sub-cable; the third contact of the second density relay is electrically connected to terminal P3:11 in the adapter box via the third wire of the second sub-cable, and the fourth contact of the second density relay is electrically connected to terminal P3:14 in the adapter box via the fourth wire of the second sub-cable; the third contact of the third density relay is electrically connected to terminal P3:10 in the adapter box via the third wire of the third sub-cable, and the fourth contact of the third density relay is electrically connected to terminal P3:15 in the adapter box via the fourth wire of the third sub-cable.

[0010] In one possible implementation, the monitoring cabinet is provided with multiple terminal blocks, and the adapter box is electrically connected to the first terminal block and the second terminal block of the monitoring cabinet respectively via a first cable.

[0011] In one possible implementation, the P3:1 terminal in the adapter box is electrically connected to the first terminal of the first terminal block of the monitoring cabinet via the first wire core of the first cable, and the P3:5 terminal in the adapter box is electrically connected to the thirteenth terminal of the first terminal block of the monitoring cabinet via the second wire core of the first cable.

[0012] In one possible implementation, the P3:9 terminal in the adapter box is electrically connected to the first terminal of the second terminal block of the monitoring cabinet via the third wire of the first cable; the P3:13 terminal in the adapter box is electrically connected to the thirteenth terminal of the second terminal block of the monitoring cabinet via the fourth wire of the first cable; the P3:14 terminal in the adapter box is electrically connected to the fourteenth terminal of the second terminal block of the monitoring cabinet via the fifth wire of the first cable; and the P3:15 terminal in the adapter box is electrically connected to the fifteenth terminal of the second terminal block of the monitoring cabinet via the sixth wire of the first cable.

[0013] In one possible implementation, the adapter box is fixed to the support frame of the GIL device by screws or clips.

[0014] In one possible implementation, the monitoring cabinet is electrically connected to the alarm system.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through the design of a junction box, aggregates the signals of nearby density meter cables, greatly reducing the number of cables and the amount of construction work. At the same time, it reduces the total length of cable trays and metal protective pipes, significantly lowering production costs and the labor and time costs for personnel laying cables. Attached Figure Description

[0017] Figure 1 A schematic diagram of an integrated cabling system for GIL density meter cable wiring provided in an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the parallel line principle of the density table provided for an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the adapter box fixing method provided in an embodiment of the present utility model. Detailed Implementation

[0020] The present solution will now be described in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 A schematic diagram of an integrated cabling system for GIL density meter cable wiring provided in this application embodiment is shown below. Figure 1 An integrated cabling system for GIL density meter cable wiring in this embodiment includes:

[0022] Multiple density meters are installed in the lower conduit. Each density meter is electrically connected to the first end of a junction box via a cable. The second end of the junction box is electrically connected to the monitoring cabinet. The junction box receives signals from the multiple density meters and aggregates them for transmission to the monitoring cabinet. The uploaded alarm signal can be transmitted by merging or separating the signals.

[0023] See Figure 2 The schematic diagram of the parallel connection of the density meter provided in this embodiment shows that both the adapter box and the monitoring cabinet are equipped with multiple terminal blocks. Each terminal in the adapter box corresponds to a cable core of the density meter. The adapter box is electrically connected to the first terminal block and the second terminal block of the monitoring cabinet through a first cable. In this embodiment, three density relays are used. If the uploaded alarm signal adopts a signal merging transmission method, the parallel connection method is as follows:

[0024] The first contact of the first density relay FZMK1A is electrically connected to terminal P3:3 in the adapter box via the first wire of the first sub-cable (FZMK1A) W1. The second contact of the first density relay FZMK1A is electrically connected to terminal P3:7 in the adapter box via the second wire of the first sub-cable (FZMK1A) W1. The first contact of the second density relay FZMK1B is electrically connected to terminal P3:3 in the adapter box via the first wire of the second sub-cable (FZMK1B) W1. The second contact of the second density relay FZMK1B is electrically connected to terminal P3:7 in the adapter box via the second wire of the second sub-cable (FZMK1B) W1. The first contact of the third density relay FZMK1C is electrically connected to terminal P3:2 in the adapter box via the first wire of the third sub-cable (FZMK1C) W1. The second contact of the third density relay FZMK1C is electrically connected to terminal P3:6 in the adapter box via the second wire of the third sub-cable (FZMK1C) W1. Terminal P3:1 in the adapter box is electrically connected to terminal F1 of the first terminal block FZX05 in the monitoring cabinet via the first wire of the first cable (FZMK1) W1. Terminal P3:5 in the adapter box is electrically connected to terminal 13 of the first terminal block FZX05 in the monitoring cabinet via the second wire of the first cable (FZMK1) W1. When the air chamber pressure is normal, the first and second contacts of the first density relay FZMK1A, the second density relay FZMK1B, and the third density relay FZMK1C do not close, and no alarm is triggered. When the air chamber pressure drops to the required value, the first and second contacts of the first density relay FZMK1A, the second density relay FZMK1B, and the third density relay FZMK1C close, triggering an alarm. The alarm signal is then combined and transmitted to terminal 13 of the first terminal block FZX05 in the monitoring cabinet.

[0025] If the alarm signal is transmitted separately, the parallel connection method is as follows:

[0026] The third contact of the first density relay FZMK1A is electrically connected to terminal P3:11 in the adapter box via the third wire of the first sub-cable (FZMK1A) W1. The fourth contact of the first density relay FZMK1A is electrically connected to terminal P3:13 in the adapter box via the fourth wire of the first sub-cable (FZMK1A) W1. The third contact of the second density relay FZMK1B is electrically connected to terminal P3:11 in the adapter box via the third wire of the second sub-cable (FZMK1B) W1. The second density relay FZMK1B... The fourth contact is electrically connected to terminal P3:14 in the adapter box via the fourth wire of the second sub-cable (FZMK1B) W1. The third contact of the third density relay FZMK1C is electrically connected to terminal P3:10 in the adapter box via the third wire of the third sub-cable (FZMK1C) W1. The fourth contact of the third density relay FZMK1C is electrically connected to terminal P3:15 in the adapter box via the fourth wire of the third sub-cable (FZMK1C) W1. Terminal P3:9 in the adapter box is electrically connected to terminal P3:10 in the adapter box via the third wire of the first cable (FZMK1) W1. The P3:13 terminal in the adapter box is electrically connected to terminal 1 of the second terminal block FZX06 of the monitoring cabinet via the fourth wire of the first cable (FZMK1) W1. The P3:14 terminal in the adapter box is electrically connected to terminal 14 of the second terminal block FZX06 of the monitoring cabinet via the fifth wire of the first cable (FZMK1) W1. The P3:15 terminal in the adapter box is electrically connected to terminal 1 of the second terminal block FZX06 of the monitoring cabinet via the sixth wire of the first cable (FZMK1) W1. Terminal 15 is electrically connected. When the gas chamber pressure is normal, the third and fourth contacts of the first density relay FZMK1A, the second density relay FZMK1B, and the third density relay FZMK1C do not close, and no alarm is triggered. When the gas chamber pressure drops to the required value, the third and fourth contacts of the first density relay FZMK1A, the second density relay FZMK1B, and the third density relay FZMK1C close, triggering an alarm. The alarm is then transmitted to terminals 13 to 15 of the second terminal block FZX06 in the monitoring cabinet.

[0027] See Figure 3 In this embodiment, the adapter box can be fixed to the support frame of the GIL device by screws or clips.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The above description is merely a specific embodiment of this utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated wiring system for GIL density meter cable terminations, characterized by, The application relates to a density monitoring system for GIL equipment, which comprises the following parts: a plurality of density tables arranged in a downward lead pipeline, the density tables are electrically connected with a first end of an adapter box through a cable, a second end of the adapter box is electrically connected with a monitoring cabinet, the adapter box is used for receiving signals transmitted by the plurality of density tables, and the signals are transmitted to the monitoring cabinet; the density tables comprise a first density relay, a second density relay and a third density relay; a first contact of the first density relay is electrically connected with a P3:3 terminal in the adapter box through a first cable; a second contact of the first density relay is electrically connected with a P3:7 terminal in the adapter box through a second cable; a first contact of the second density relay is electrically connected with a P3:3 terminal in the adapter box through a second cable; a second contact of the second density relay is electrically connected with a P3:7 terminal in the adapter box through a second cable; a first contact of the third density relay is electrically connected with a P3:2 terminal in the adapter box through a third cable; a second contact of the third density relay is electrically connected with a P3:6 terminal in the adapter box through a third cable; a third contact of the first density relay is electrically connected with a P3:11 terminal in the adapter box through a third cable; a fourth contact of the first density relay is electrically connected with a P3:13 terminal in the adapter box through a fourth cable; a third contact of the second density relay is electrically connected with a P3:11 terminal in the adapter box through a third cable; a fourth contact of the second density relay is electrically connected with a P3:14 terminal in the adapter box through a fourth cable; a third contact of the third density relay is electrically connected with a P3:10 terminal in the adapter box through a third cable; and a fourth contact of the third density relay is electrically connected with a P3:15 terminal in the adapter box through a fourth cable. The adapter box is provided with a plurality of terminal rows, and each terminal row is connected with a cable core of a density table.

2. The integrated wiring system for GIL density metering cable connections of claim 1, wherein, The monitoring cabinet is provided with a plurality of terminal rows, and the adapter box is electrically connected with the first terminal row and the second terminal row of the monitoring cabinet through a first cable.

3. The integrated wiring system for GIL density metering cable connections of claim 1, wherein, A P3:1 terminal in the adapter box is electrically connected with a No.1 terminal of the first terminal row of the monitoring cabinet through a No.1 cable core of the first cable; and a P3:5 terminal in the adapter box is electrically connected with a No.13 terminal of the first terminal row of the monitoring cabinet through a No.2 cable core of the first cable.

4. The integrated wiring system for GIL density meter cable connections of claim 3, wherein, A P3:9 terminal in the adapter box is electrically connected with a No.1 terminal of the second terminal row of the monitoring cabinet through a No.3 cable core of the first cable; a P3:13 terminal in the adapter box is electrically connected with a No.13 terminal of the second terminal row of the monitoring cabinet through a No.4 cable core of the first cable; a P3:14 terminal in the adapter box is electrically connected with a No.14 terminal of the second terminal row of the monitoring cabinet through a No.5 cable core of the first cable; and a P3:15 terminal in the adapter box is electrically connected with a No.15 terminal of the second terminal row of the monitoring cabinet through a No.6 cable core of the first cable.

5. The integrated wiring system for GIL density meter cable connections of claim 3, wherein, The adapter box is fixed on a support frame of the GIL equipment through screws or buckles.

6. The integrated wiring system for GIL density meter cable connections of claim 5, wherein, ​ 7. The integrated wiring system for GIL density meter cable connections of claim 1, wherein, The monitoring cabinet is electrically connected with the alarm system.

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