CN204088784U - A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function - Google Patents

A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function Download PDF

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Publication number
CN204088784U
CN204088784U CN201420539284.7U CN201420539284U CN204088784U CN 204088784 U CN204088784 U CN 204088784U CN 201420539284 U CN201420539284 U CN 201420539284U CN 204088784 U CN204088784 U CN 204088784U
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electric cable
cable
cable accessories
temperature
electric
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CN201420539284.7U
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汪童志
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Fujian Ceepower Co ltd
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FUJIAN CEE POWER SYSTEM Co Ltd
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Abstract

The utility model discloses a kind of embedded electric cable accessories with temperature and electric current on-line monitoring function, it comprises cable adaptor, binding post, equipment casing, insulating plug and insulation gag, cable is arranged with in cable adaptor, the conductor wire end of cable is connected with binding post, binding post connects insulating plug by stud, and is connected to together on equipment casing; Cable adaptor, equipment casing, binding post and insulating plug skin are all enclosed with electric cable accessories insulating barrier, electric cable accessories outer shielding layer is provided with outside electric cable accessories insulating barrier, insulating plug cover buckle is combined in insulating plug one end of electric cable accessories outer shielding layer, electric cable accessories internal shield is arranged with outside the conductor wire end of cable, the temperature sensor become one and current sensor is embedded with in electric cable accessories internal shield, temperature sensor and current sensor electrical connection, temperature sensor is built-in with wireless transmission device.The advantages such as the utility model structure is simple, measurement is accurate, cost is low, safe and reliable.

Description

A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function
Technical field
The utility model relates to a kind of temperature for 10-35kV moveable high-voltage switchgear and current monitoring device, particularly relates to a kind of embedded electric cable accessories with temperature and electric current on-line monitoring function.
Background technology
In the equipment such as loop-network switch cabinet, cable branch box, preassembled transformer station that power cable distribution system is used, in order to realize device miniaturization, general employing prefabricated type cable accessory is connected with various controller switching equipment, often cause contact resistance bigger than normal because mounting process is bad at these connecting portions, long-time running can cause local temperature rise to exceed standard, and even causes electric cable accessories to burn the accident with device damage.
In order to the fault preventing and reduce the connecting portion between cable and controller switching equipment to cause because temperature rise is too high, need to adopt suitable method to carry out Real-Time Monitoring to the temperature at this position.Because connecting portion space is little, conductive component is all sealed in solid insulating material, there are some suitable temperature sensors can be used for carrying out temperature monitoring to the installation position of prefabricated type cable accessory in the market.More typical technology is the surface of directly being tied up by heat sensor band at prefabricated type cable accessory, by measuring the temperature of electric cable accessories insulator surface, the temperature of indirect acquisition inner conductor, this method is easily subject to external environmental factor impact and causes larger error, even make the mistake instruction and warning, and the output of temperature sensor generally adopts cable to be directly connected with data temperature indicating device, does not realize electrical isolation, there is potential safety hazard; More advanced technology, the technology that such as patent 201220075674.4 is introduced, it is the conductor temperature in prefabricated type cable accessory built-in installation direct contact type temperature sensor measurement cable connecting part position, and temperature data is sent to by built-in passive type wireless transmission device the temperature indicator installed nearby, realize the on-line temperature monitoring of prefabricated type cable accessory.
In electric power system, often because various fault produces overcurrent, once there is overcurrent, need to find fault point rapidly, and the normal operation of electric power system after eliminating fault, could be recovered.Conveniently looking up the fault point, extensively fault detector is adopted in electric power system, his general principle is exactly be set with a current sensor on electrical lead or cable, the signal of current sensor is sent to fault detector by cable, optical cable or wireless system, fault detector carries out the current signal of sampling to process and analyze, when monitoring overcurrent, warning message is sent by modes such as sound, light, direction boards, these warning messages, can also by communication system and device transmission to substation, a distant place or main station system except the instruction of scene.
Along with the development of Power System Intelligent, need to carry out comprehensive monitoring to the weak link of distribution system, report to the police after pinpointing the problems at once, reduce or eliminate accident potential.Traditional temperature sensor and current sensor are respective independently dispersal devices, and signal transmission mode and connect also more complicated, integrated cost is higher.The temperature that a kind of structure of market demand is simple, cost is lower, it is accurate, easy for installation to measure, the function that temperature instruction and current failure indicate combined and fault detector, for temperature monitoring and the electric power system current failure on-line monitoring system of prefabricated type cable accessory and relevant device connecting portion, its core technology is exactly the embedded type sensor needing to develop a kind of temperature and fault detector.
Summary of the invention
In order to solve deficiency of the prior art, technical problem to be solved in the utility model is to provide that a kind of structure is simple, cost is lower, it is attached to measure the embedded cable with temperature and electric current on-line monitoring function accurate, easy for installation.
For achieving the above object, the utility model is by the following technical solutions:
A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function, it comprises cable adaptor, binding post, equipment casing, insulating plug and insulation gag, cable is arranged with in described cable adaptor, the conductor wire end of cable is connected with binding post, binding post connects insulating plug by stud, and is connected to together on equipment casing; Described cable adaptor, equipment casing, binding post and insulating plug skin are all enclosed with electric cable accessories insulating barrier, electric cable accessories outer shielding layer is provided with outside electric cable accessories insulating barrier, electric cable accessories outer shielding layer ground connection, described insulating plug cover buckle is combined in insulating plug one end of electric cable accessories outer shielding layer, electric cable accessories internal shield is arranged with outside the conductor wire end of described cable, the temperature sensor and current sensor that become one is embedded with in described electric cable accessories internal shield, temperature sensor and current sensor electrical connection, temperature sensor is built-in with wireless transmission device.
Described insulation gag is that semi-conducting material is shaping.
Described insulation gag and electric cable accessories outer shielding layer keep in touch.Because electric cable accessories outer shielding layer is ground connection, therefore more safe and reliable.
Temperature sensor and current sensor embed in electric cable accessories by the utility model, there are make electric cable accessories except all functions of general all insulation, fully-sealed electric cable fittings, also there is the temperature survey of connecting portion and the current measurement function of cable loop, and measurement data wireless transmission function, itself is again independently temperature and a current sensor.
The utility model adopts the conductor temperature of the direct contact type temperature sensor measurement cable connecting part position of built-in installation, adopt the fault current in the current sensor measurement cable loop of built-in installation, and by the wireless transmission device on transducer, temperature data and current data are sent to the temperature and fault detector of installing nearby, realize temperature and the On-line Fault monitoring of prefabricated type cable accessory.
Major advantage of the present utility model is: temperature sensor and current sensor integrate, temperature sensor directly contacts with tested position, temperature sensor, current sensor and measurement data acquisition and radiating circuit and prefabricated type cable accessory product unitary design, temperature and current acquisition data acquisition radio frequency signal send, in addition, temperature and current acquisition, send and adopt current sensor itself to provide power supply to built-in electronic circuit, external power source is not needed to get final product work, without any need for inside and outside wiring when installing at the scene, there is structure simple, measure accurately, cost is low, the advantage such as safe and reliable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details:
Fig. 1 is a kind of embedded structural representation with the electric cable accessories of temperature and electric current on-line monitoring function of the utility model.
Embodiment
As shown in Figure 1, the utility model comprises cable adaptor 1, binding post 2, equipment casing 3, insulating plug 4 and insulation gag 5, cable 6 is arranged with in described cable adaptor 1, the conductor wire end of cable 6 is connected with binding post 2, binding post 2 connects insulating plug 4 by stud 12, and is connected on equipment casing 3 together, described cable adaptor 1, equipment casing 3, binding post 2 and insulating plug 4 skin are all enclosed with electric cable accessories insulating barrier 7, electric cable accessories outer shielding layer 8 is provided with outside electric cable accessories insulating barrier 7, electric cable accessories outer shielding layer 8 ground connection, described insulation gag 5 is fastened on insulating plug 4 one end of electric cable accessories outer shielding layer 8, electric cable accessories internal shield 9 is arranged with outside the conductor wire end of described cable 6, the temperature sensor 10 become one and current sensor 11 is embedded with in described electric cable accessories internal shield 9, temperature sensor 10 and current sensor 11 are electrically connected, temperature sensor 10 is built-in with wireless transmission device.
Described insulation gag 5 is that semi-conducting material is shaping.
Described insulation gag 5 keeps in touch with electric cable accessories outer shielding layer 8.Because electric cable accessories outer shielding layer 8 is ground connection, therefore more safe and reliable.
The utility model is by temperature sensor 10, current sensor 11 by Integrated design together, form parts, then these parts are passed through poured with epoxy resin, plastics or thermoplastic elastomer (TPE) injection moulding, rubber injection or mold pressing, the techniques such as prefabricated component assembling are embedded in prefabricated type cable accessory, make electric cable accessories except having general all insulation, beyond all functions of fully-sealed electric cable fittings, also there is the temperature survey of connecting portion and the current measurement function in cable 6 loop, and measurement data wireless transmission function, itself is again independently temperature and a current sensor 11.
In the utility model, temperature sensor 10 is directly contacted with cable 6 conductor coupling portion position by electric cable accessories internal shield 9, realize the direct temperature sampling of electric cable accessories connecting portion, the fault current in cable 6 loop measured by the current sensor 11 of the built-in installation of another employing, and by the wireless transmission device on transducer, temperature data and fault current data are sent to the temperature and fault detector of installing nearby, realize temperature and the On-line Fault monitoring of prefabricated type cable accessory.When electric cable accessories charging operation, according to electromagnetic induction principle, there is electrical potential difference at the coil output of current sensor 11 in the utility model, this electrical potential difference provides working power for temperature sensor 10 and wireless transmission device, does not need external power source to get final product work.

Claims (3)

1. an embedded electric cable accessories with temperature and electric current on-line monitoring function, it comprises cable adaptor, binding post, equipment casing, insulating plug and insulation gag, cable is arranged with in described cable adaptor, the conductor wire end of cable is connected with binding post, binding post connects insulating plug by stud, and is connected to together on equipment casing, described cable adaptor, equipment casing, binding post and insulating plug skin are all enclosed with electric cable accessories insulating barrier, electric cable accessories outer shielding layer is provided with outside electric cable accessories insulating barrier, electric cable accessories outer shielding layer ground connection, described insulating plug cover buckle is combined in insulating plug one end of electric cable accessories outer shielding layer, it is characterized in that: outside the conductor wire end of described cable, be arranged with electric cable accessories internal shield, the temperature sensor and current sensor that become one is embedded with in described electric cable accessories internal shield, temperature sensor and current sensor electrical connection, temperature sensor is built-in with wireless transmission device.
2. a kind of embedded electric cable accessories with temperature and electric current on-line monitoring function according to claim 1, is characterized in that: described insulation gag is that semi-conducting material is shaping.
3. a kind of embedded electric cable accessories with temperature and electric current on-line monitoring function according to claim 1, is characterized in that: described insulation gag and electric cable accessories outer shielding layer keep in touch.
CN201420539284.7U 2014-09-19 2014-09-19 A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function Active CN204088784U (en)

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CN201420539284.7U CN204088784U (en) 2014-09-19 2014-09-19 A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420539284.7U CN204088784U (en) 2014-09-19 2014-09-19 A kind of embedded electric cable accessories with temperature and electric current on-line monitoring function

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104715961A (en) * 2015-03-06 2015-06-17 天津平高智能电气有限公司 Terminal unit, solid-sealed polar pole and breaker using solid-sealed polar pole
CN104852169A (en) * 2015-05-19 2015-08-19 深圳市沃尔核材股份有限公司 Intelligent and accurate temperature measurement separable cable connector
CN105632629A (en) * 2016-03-10 2016-06-01 黑龙江中惠地热股份有限公司 T-shaped cable with fault prompt and working method for T-shaped cable
CN106168511A (en) * 2016-08-27 2016-11-30 保定合力达电缆附件有限公司 A kind of high tension cable connect-disconnect plug with temp sensing function
CN106546784A (en) * 2015-09-18 2017-03-29 侯飞 A kind of cable accessory constructs the plug-in unit and method of high-voltage electric energy meter
CN107689618A (en) * 2017-10-16 2018-02-13 云南电网有限责任公司电力科学研究院 A kind of cable connector and preparation method
CN108318164A (en) * 2018-04-18 2018-07-24 南方电网科学研究院有限责任公司 A kind of the interfacial pressure detection method and device of cable accessory
CN109540214A (en) * 2018-12-05 2019-03-29 深圳供电局有限公司 O&M device
CN112449677A (en) * 2018-11-20 2021-03-05 Abb瑞士股份有限公司 Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method
US11022498B2 (en) 2017-04-13 2021-06-01 Abb Schweiz Ag Measurement apparatus and power cable accessory and system using the same and assembling method therefor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104715961A (en) * 2015-03-06 2015-06-17 天津平高智能电气有限公司 Terminal unit, solid-sealed polar pole and breaker using solid-sealed polar pole
CN104852169A (en) * 2015-05-19 2015-08-19 深圳市沃尔核材股份有限公司 Intelligent and accurate temperature measurement separable cable connector
CN106546784A (en) * 2015-09-18 2017-03-29 侯飞 A kind of cable accessory constructs the plug-in unit and method of high-voltage electric energy meter
CN105632629A (en) * 2016-03-10 2016-06-01 黑龙江中惠地热股份有限公司 T-shaped cable with fault prompt and working method for T-shaped cable
CN106168511A (en) * 2016-08-27 2016-11-30 保定合力达电缆附件有限公司 A kind of high tension cable connect-disconnect plug with temp sensing function
US11022498B2 (en) 2017-04-13 2021-06-01 Abb Schweiz Ag Measurement apparatus and power cable accessory and system using the same and assembling method therefor
CN107689618A (en) * 2017-10-16 2018-02-13 云南电网有限责任公司电力科学研究院 A kind of cable connector and preparation method
CN108318164A (en) * 2018-04-18 2018-07-24 南方电网科学研究院有限责任公司 A kind of the interfacial pressure detection method and device of cable accessory
CN112449677A (en) * 2018-11-20 2021-03-05 Abb瑞士股份有限公司 Device for monitoring the temperature and voltage of a cable joint of a cable connected to a gas-insulated switchgear and associated manufacturing method
CN109540214A (en) * 2018-12-05 2019-03-29 深圳供电局有限公司 O&M device

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C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 350002 Fuzhou, Cangshan Jinshan Industrial Zone, Jinzhou Road North

Patentee after: CEEPOWER Co.,Ltd.

Address before: 350002 Fuzhou, Cangshan Jinshan Industrial Zone, Jinzhou Road North

Patentee before: Fujian CEE Installation Co.,Ltd.

TR01 Transfer of patent right

Effective date of registration: 20170612

Address after: Fuqing City, Fuzhou City, Fujian province 350301 economic and Technological Development Zone (Hong Lu Jie Dao Zhou Dian Cun)

Patentee after: FUJIAN CEEPOWER CO.,LTD.

Address before: 350002 Fuzhou, Cangshan Jinshan Industrial Zone, Jinzhou Road North

Patentee before: CEEPOWER Co.,Ltd.

TR01 Transfer of patent right