CN207335915U - A kind of cable monitoring system - Google Patents

A kind of cable monitoring system Download PDF

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Publication number
CN207335915U
CN207335915U CN201721184380.4U CN201721184380U CN207335915U CN 207335915 U CN207335915 U CN 207335915U CN 201721184380 U CN201721184380 U CN 201721184380U CN 207335915 U CN207335915 U CN 207335915U
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China
Prior art keywords
cable
data
temperature
temperature sensor
top layer
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Active
Application number
CN201721184380.4U
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Chinese (zh)
Inventor
李成
肖翠
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SICHUAN DONGYU INFORMATION TECHNOLOGY Co Ltd
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SICHUAN DONGYU INFORMATION TECHNOLOGY Co Ltd
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Priority to CN201721184380.4U priority Critical patent/CN207335915U/en
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Abstract

The utility model discloses a kind of cable monitoring system, it includes Rogowski coil, current transformer, connector conductor temperature sensor, cable top layer temperature sensor, data acquisition module, communication module and data processing module;Wherein, data acquisition module is connected with Rogowski coil, current transformer, connector conductor temperature sensor and cable top layer temperature sensor respectively; to gather cable load current data, cable metal protective layer earth current data, cable connector conductor temperature data and cable top layer temperature data; and; the data sending that data acquisition module is gathered by communication module is to data acquisition module; data processing module judges cable and is in normal operating condition or abnormal operating condition by comparing the data of collection and the magnitude relationship of its alarm threshold value.Therefore, the safe operation index that the utility model can be to cable carries out comprehensive monitoring, the convenient management to electric system.

Description

A kind of cable monitoring system
Technical field
Cable detection technical field is the utility model is related to, more particularly to a kind of cable monitoring system.
Background technology
Cable is an important component of electric system, and cable sheath earth current and the effective of cable temperature monitor Safe operation to cable is of great significance, and is carried out therefore, it is necessary to design a kind of safe operation index that can be to cable The technical solution of comprehensive monitoring.
Utility model content
The purpose of this utility model is to provide a kind of cable monitoring system.
In order to realize above-mentioned purpose of utility model, the utility model provides following technical scheme:
A kind of cable monitoring system, it includes Rogowski coil, current transformer, connector conductor temperature sensor, cable meter Layer temperature sensor, data acquisition module, communication module and data processing module;Wherein,
The Rogowski coil is set on cable, the load current for detection cable;The current transformer is set in On the grounding connection line of cable metal protective layer, the earth current for detection cable coat of metal;The connector conductor temperature Degree sensor is used for detection cable connector conductor temperature, and cable top layer temperature sensor is used for detection cable skin temperature; The data acquisition module respectively with the Rogowski coil, the current transformer, the connector conductor temperature sensor and institute State the connection of cable top layer temperature sensor, for gather cable load current data, cable metal protective layer earth current data, Cable connector conductor temperature data and cable top layer temperature data;Moreover, the data acquisition module and the data processing mould Block connects, and gives the data sending of collection to the data processing module;The data processing module is according to cable load electric current Data and cable top layer temperature data, calculate cable conductor temperature, and are respectively compared cable metal protective layer earth current number According to, cable connector conductor temperature data and cable conductor temperature data and the magnitude relationship of its alarm threshold value, and judge the electricity Cable is in normal operating condition or abnormal operating condition.
According to a kind of specific embodiment, in the cable monitoring system of the utility model, the data processing module root According to cable top layer temperature data and cable connector conductor temperature data, the temperature rise for calculating cable top layer and cable connector conductor is fast Rate, and when the temperature rise rate on cable top layer or cable connector conductor reaches setting value, produce heat alarm.
According to a kind of specific embodiment, in the cable monitoring system of the utility model, environment temperature sensing is further included Device, the data acquisition module gather the environment temperature sensor and detect by being connected with the environment temperature sensor Cable local environment temperature data.
According to a kind of specific embodiment, in the cable monitoring system of the utility model, the quantity of the Rogowski coil At least three, each Rogowski coil is used for the phase and load current of each phase cable in three-phase electricity.
Compared with prior art, the beneficial effects of the utility model:In the cable monitoring system of the utility model, data are adopted Collection module is connected with Rogowski coil, current transformer, connector conductor temperature sensor and cable top layer temperature sensor respectively, with Gather cable load current data, cable metal protective layer earth current data, cable connector conductor temperature data and cable meter Layer temperature data, moreover, data acquisition module by the data sending that communication module is gathered to data acquisition module, data Processing module by comparing the data of collection and the magnitude relationship of its alarm threshold value, and judge cable be in normal operating condition or Abnormal operating condition.Therefore, the safe operation index that the utility model can be to cable carries out comprehensive monitoring, convenient to power train The management of system.
Brief description of the drawings:
Fig. 1 is the structure diagram of the utility model.
Reference numeral:1- Rogowski coils, 2- cables top layer temperature sensor, 3- connector conductor temperature sensors, 4- cables, 5- current transformers, 6- environment temperature sensors, 7- data acquisition modules, 8- data processing modules.
Embodiment
The utility model is described in further detail with reference to test example and embodiment.But should not be by this The scope for being interpreted as the above-mentioned theme of the utility model is only limitted to following embodiment, all to be realized based on the utility model content Technology belongs to the scope of the utility model.
The structure diagram of the utility model with reference to shown in Fig. 1;Wherein, the cable monitoring system of the utility model includes Rogowski coil 1, current transformer 5, connector conductor temperature sensor 3, cable top layer temperature sensor 2, data acquisition module 7, Communication module and data processing module 8.
Wherein, Rogowski coil 1 is set on cable 4, the load current for detection cable 4.Cable 4 has metal coating Layer and the coat of metal be equipped with grounding connection line, current transformer 5 is set in the grounding connection line of cable metal protective layer On, the earth current for 4 coat of metal of detection cable.Connector conductor temperature sensor is used for 4 connector conductor of detection cable Temperature, cable top layer temperature sensor are used for 4 skin temperature of detection cable.
Data acquisition module 7 respectively with Rogowski coil 1, current transformer 5, connector conductor temperature sensor 3 and cable meter Layer temperature sensor 2 connects, and is connect so as to gather cable load current data, cable metal protective layer earth current data, cable Head conductor temperature data and cable top layer temperature data.Moreover, data acquisition module 7 is connected with data processing module 8, and will adopt The data sending of collection is to data processing module 8.Data processing module 8 is according to cable load current data and cable skin temperature number According to calculating cable conductor temperature, and be respectively compared cable metal protective layer earth current data, cable connector conductor temperature number According to the magnitude relationship with cable conductor temperature data and its alarm threshold value, and judge cable 4 and be in normal operating condition or exception Operating status.
Specifically, in the utility model, cable metal protective layer earth current data, cable connector conductor temperature data and The alarm threshold value of cable conductor temperature data is preset according to actual working condition, and by warning level set in advance Value is stored in data processing module.Data processing module is according to cable load current data and cable top layer temperature data, meter The mode for calculating cable conductor temperature belongs to existing computational methods, and details are not described herein again.
When implementing, in the cable monitoring system of the utility model, data processing module is according to cable top layer temperature data With cable connector conductor temperature data, calculate the temperature rise rate of cable top layer and cable connector conductor, and on cable top layer or When the temperature rise rate of cable connector conductor reaches setting value, heat alarm is produced.
The problem of due to the temperature anomaly of cable being common in cable fault, caused by being typically overlond running, therefore, lead to Cross and judge whether the temperature rise rate of cable top layer temperature data and cable connector conductor reaches setting value, and carry out temperature alarming.
In the structure diagram of the utility model shown in Fig. 1, the cable monitoring system of the utility model further includes ring Border temperature sensor 6, by being connected with environment temperature sensor 6, collection environment temperature sensor 6 detects data acquisition module 7 The temperature data of the cable local environment arrived.In cable work, since the environment temperature residing for cable has the temperature of cable Certain influence, therefore, by setting environment temperature sensor more fully to monitor the operating status of cable.
In fact, in the application of power transmission, cable transmission is three-phase electricity.Therefore, the cable monitoring of the utility model The quantity at least three of Rogowski coil in system, each Rogowski coil are used for phase and the load of a cable in three-phase electricity Electric current.

Claims (4)

  1. A kind of 1. cable monitoring system, it is characterised in that including Rogowski coil, current transformer, connector conductor temperature sensor, Cable top layer temperature sensor, data acquisition module and data processing module;Wherein,
    The Rogowski coil is set on cable, the load current for detection cable;The current transformer is set in cable On the grounding connection line of coat of metal, the earth current for detection cable coat of metal;The connector conductor temperature passes Sensor is used for detection cable connector conductor temperature, and cable top layer temperature sensor is used for detection cable skin temperature;It is described Data acquisition module respectively with the Rogowski coil, the current transformer, the connector conductor temperature sensor and the electricity Cable skin temperature sensor connects, for gathering cable load current data, cable metal protective layer earth current data, cable Connector conductor temperature data and cable top layer temperature data;Moreover, the data acquisition module connects with the data processing module Connect, and give the data sending of collection to the data processing module;The data processing module is according to cable load current data With cable top layer temperature data, cable conductor temperature is calculated, and is respectively compared cable metal protective layer earth current data, electricity Cable joint conductor temperature data and cable conductor temperature data and the magnitude relationship of its alarm threshold value, and judge the cable and be in Normal operating condition or abnormal operating condition.
  2. 2. cable monitoring system as claimed in claim 1, it is characterised in that the data processing module is according to cable top layer temperature Degrees of data and cable connector conductor temperature data, calculate the temperature rise rate of cable top layer and cable connector conductor, and in cable When the temperature rise rate of top layer or cable connector conductor reaches setting value, heat alarm is produced.
  3. 3. cable monitoring system as claimed in claim 1, it is characterised in that further include environment temperature sensor, the data Acquisition module gathers ring residing for the cable that the environment temperature sensor detects by being connected with the environment temperature sensor The temperature data in border.
  4. 4. the cable monitoring system as described in one of claims 1 to 3, it is characterised in that the quantity of the Rogowski coil is at least Three, a Rogowski coil is at least set, each Rogowski coil is used to detect corresponding one in three-phase electricity on each phase cable The phase and load current of phase cable.
CN201721184380.4U 2017-09-15 2017-09-15 A kind of cable monitoring system Active CN207335915U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721184380.4U CN207335915U (en) 2017-09-15 2017-09-15 A kind of cable monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721184380.4U CN207335915U (en) 2017-09-15 2017-09-15 A kind of cable monitoring system

Publications (1)

Publication Number Publication Date
CN207335915U true CN207335915U (en) 2018-05-08

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CN201721184380.4U Active CN207335915U (en) 2017-09-15 2017-09-15 A kind of cable monitoring system

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CN (1) CN207335915U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112147545A (en) * 2019-06-11 2020-12-29 北汽福田汽车股份有限公司 System and method for detecting cable joint and vehicle
CN113566903A (en) * 2021-09-28 2021-10-29 山东科华电力技术有限公司 Distributed cable comprehensive online monitoring device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112147545A (en) * 2019-06-11 2020-12-29 北汽福田汽车股份有限公司 System and method for detecting cable joint and vehicle
CN113566903A (en) * 2021-09-28 2021-10-29 山东科华电力技术有限公司 Distributed cable comprehensive online monitoring device and method
CN113566903B (en) * 2021-09-28 2022-02-22 山东科华电力技术有限公司 Distributed cable comprehensive online monitoring device and method

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