CN207541995U - A kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable - Google Patents

Abstract

The utility model discloses a special monitoring cable for a digital substation failure maintenance robot in the field of cable technology. A flame-retardant inner bushing is arranged inside the outer protective sheath, and the flame-retardant inner bushing is arranged on a side far away from the outer protective sheath. There is a galvanized copper wire braided shielding layer, and the control wires are arranged in turn as a control core conductor, a second insulator, a second shielding layer, and a second sheath from inside to outside, and the signal wires are arranged in turn as A signal core conductor, a third insulator, a third shielding layer, and a third sheath, and the video wires are sequentially arranged as a video core conductor, a first insulator, a first shielding layer, and a first sheath from inside to outside. The utility model has a simple structure, which can ensure that the electric wave radiated by the wire during transmission will be offset by the electric wave emitted by another wire, which increases the scope of application of the monitoring cable, and also improves the flexibility and tensile strength of the monitoring cable. , Improve the service life of the monitoring cable.

Description

A special monitoring cable for digital substation fault maintenance robot

technical field

The utility model relates to the technical field of cables, in particular to a special monitoring cable for a digital substation failure maintenance robot.

Background technique

With the rapid development of the national economy and the gradual popularization of monitoring systems, monitoring cables are more and more used in all aspects of production and life. Common monitoring equipment is to connect video lines, control lines and power supply lines during transmission. Combined together, after that, through the arrangement of the wire sequence, winding and sealing to form a usable monitoring cable, but because in the monitoring system, the video acquisition and output are often distributed at relatively distant places, in order to ensure the normality of the monitoring video It shows that certain high requirements are put forward for the monitoring cable. The current cable structure is simple, that is, the oxygen-free copper conductor is added with an insulating layer, and the insulating tape is wrapped around the cladding layer. Due to the electromagnetic interference between multiple groups of cables, the frequency response is low and the accuracy is low. It is not resistant to high temperature and has general anti-aging performance, so it is not suitable for monitoring cables. It is extremely important for cables to work normally in any occasion. Since the monitoring system is used in special occasions, this requires cables to have higher performance. Otherwise, the use requirements and expected effects will not be met.

Utility model content

The purpose of this utility model is to provide a special monitoring cable for a digital substation fault maintenance robot to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a special monitoring cable for a digital substation fault maintenance robot, including an outer protective sheath, a flame-retardant inner bushing is arranged on the inner side of the outer protective sheath, and the flame-retardant inner lining The side of the sleeve away from the outer protective sleeve is provided with a galvanized copper wire braided shielding layer, and the side of the galvanized copper wire braided shielding layer away from the flame-retardant inner bushing is provided with a cable wrapping layer, and the cable wrapping The inner cavity of the layer is respectively provided with control wires, signal wires, power supply wires, video wires and filling ropes along the clockwise direction, and there is a cable paste between the control wires, signal wires, power supply wires, video wires and filling ropes. , the control wires are sequentially arranged as a control wire core conductor, a second insulator, a second shielding layer, and a second sheath from inside to outside, and the signal wires are sequentially arranged as a signal wire core conductor and a third insulator from inside to outside , the third shielding layer, and the third sheath, the video wires are sequentially set as a video core conductor, a first insulator, a first shielding layer and a first sheath from inside to outside, and the power supply wires are sequentially arranged from inside to outside It is provided as a power supply core conductor and a fourth insulator, and a temperature sensor is arranged on the outer edge side wall of the fourth insulator.

Preferably, the signal core conductors are configured as twisted pairs.

Preferably, the first insulator, the second insulator, the third insulator and the fourth insulator are all provided as polypropylene insulating layers.

Preferably, the filling rope is twisted with high-strength glass fiber strips.

Preferably, the control wires, signal wires, power supply wires and video wires are set independently.

Preferably, the fourth insulator is provided with a groove matching with the temperature sensor.

Compared with the prior art, the beneficial effect of the utility model is that the structure of the utility model is simple and reasonable, and the control wire, the signal wire, the power supply wire and the video wire are arranged independently in pairs, and each shielding layer is provided to avoid the wire The electromagnetic interference generated between them can be monitored in real time by setting a temperature sensor to ensure the safety of the cable. By setting the signal core conductor as a twisted pair, it is guaranteed that the electric wave radiated by the wire will The effect of being offset by the electric wave sent by another line increases the scope of application of the monitoring cable, and also improves the flexibility and tensile strength of the monitoring cable, and improves the service life of the monitoring cable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 video wire, 101 video core conductor, 102 first insulator, 103 first shielding layer, 104 first sheath, 2 control wire, 201 control core conductor, 202 second insulator, 203 second shielding layer , 204 second sheath, 3 signal wire, 301 signal core conductor, 302 third insulator, 303 third shielding layer, 304 third sheath, 4 power supply wire, 401 power supply core conductor, 402 fourth insulator, 5 Filling rope, 6 cable paste, 7 cable wrapping, 8 galvanized copper wire braided shielding layer, 9 flame-retardant inner bushing, 10 outer protective sleeve, 11 temperature sensor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, the utility model provides a technical solution: a special monitoring cable for a digital substation fault maintenance robot, including an outer protective sheath 10, and a flame-retardant inner bushing 9 is arranged on the inner side of the outer sheath 10. A galvanized copper wire braided shielding layer 8 is provided on the side of the flame-retardant inner bushing 9 away from the outer protective sleeve 10, and a cable winding is arranged on the side of the galvanized copper wire braided shielding layer 8 away from the flame-retardant inner bushing 9 Cladding layer 7, the inner cavity of the cable around the cladding layer 7 is respectively provided with control wires 2, signal wires 3, power supply wires 4, video wires 1 and filling rope 5 along the clockwise direction, and the control wires 2, signal wires 3. Cable paste 6 is arranged between the power supply wire 4, the video wire 1 and the filling rope 5, and the control wire 2 is sequentially arranged as a control core conductor 201, a second insulator 202, and a second shielding layer from inside to outside. 203, the second sheath 204, the signal wire 3 is sequentially arranged as a signal core conductor 301, a third insulator 302, a third shielding layer 303, and a third sheath 304 from inside to outside, and the video wire 1 is arranged from the inside The video line core conductor 101, the first insulator 102, the first shielding layer 103 and the first sheath 104 are set in sequence from the outside, and the power supply wire 4 is set in turn as the power supply line core conductor 401 and the fourth insulator 402 from the inside to the outside. , the temperature sensor 11 is arranged on the outer edge sidewall of the fourth insulator 402 .

Wherein, the signal wire core conductor 301 is set as a twisted pair, which can ensure that the electric wave radiated by one of the signal wires 3 during signal transmission will be canceled by the electric wave emitted by the other wire. The first insulator 102, the second insulator 202, the third insulator 302 and the fourth insulator 402 are all set as polypropylene insulating layers, through which the insulation performance can be improved, and the filling rope 5 is made of twisted high-strength glass fiber tapes Through this setting, the tensile performance and flexibility of the monitoring cable can be enhanced. The control wire 2, the signal wire 3, the power supply wire 4 and the video wire 1 are set independently, and the electromagnetic interference generated between the wires can be avoided through this setting. For interference, the fourth insulator 402 is provided with a groove matching with the temperature sensor 11 , and this arrangement can increase the installation convenience of the temperature sensor 11 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable, including outer protective jacket (10), feature exists In：Fire-retardant neck bush (9) is provided on the inside of the outer protective jacket (10), the fire-retardant neck bush (9) is far from outer protective jacket (10) Side be provided with zinc-plated copper wire woven shield (8), the zinc-plated copper wire woven shield (8) is far from fire-retardant neck bush (9) Side be provided with cable lapping layer (7), the inner cavity of the cable lapping layer (7) is respectively arranged with control clockwise Conducting wire (2), signal conductor (3), current supply line (4), video conducting wire (1) and gasket for packing (5), and pilot (2), signal conductor (3), be both provided with cable cream (6) between current supply line (4), video conducting wire (1) and gasket for packing (5), the pilot (2) by It is interior to setting gradually cable core conductor (201), second insulator (202), secondary shielding layer (203), the second sheath in order to control outside (204), the signal conductor (3) is set gradually from inside to outside as signal cable core conductor (301), third insulator (302), third Shielded layer (303), third sheath (304), the video conducting wire (1) set gradually from inside to outside for video cable core conductor (101), First insulator (102), first screen layer (103) and the first sheath (104), the current supply line (4) set successively from inside to outside Power supply cable core conductor (401) and the 4th insulator (402) are set to, temperature is provided in the 4th insulator (402) peripheral side wall Spend sensor (11).

2. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable according to claim 1, feature It is：The signal cable core conductor (301) is set as twisted-pair feeder.

3. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable according to claim 1, feature It is：The first insulator (102), second insulator (202), third insulator (302) and the 4th insulator (402) are all provided with It is set to polypropylene insulation layer.

4. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable according to claim 1, feature It is：The gasket for packing (5) is twisted using high strength glass fiber band.

5. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable according to claim 1, feature It is：The pilot (2), signal conductor (3), current supply line (4) and video conducting wire (1) are independently set.

6. a kind of digital transformer substation breakdown maintenance robot Special-type monitoring cable according to claim 1, feature It is：It is provided on 4th insulator (402) and temperature sensor (11) matched groove.