CN204332204U - A kind of 10kV cable fault simulation device - Google Patents

A kind of 10kV cable fault simulation device Download PDF

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Publication number
CN204332204U
CN204332204U CN201520016787.0U CN201520016787U CN204332204U CN 204332204 U CN204332204 U CN 204332204U CN 201520016787 U CN201520016787 U CN 201520016787U CN 204332204 U CN204332204 U CN 204332204U
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China
Prior art keywords
cable
plug
unit
elbow
fault simulation
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CN201520016787.0U
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Chinese (zh)
Inventor
高旭启
蔡迅
平原
周兴
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State Grid Corp of China SGCC
Training Center of State Grid Zhejiang Electric Power Co Ltd
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State Grid Corp of China SGCC
Training Center of State Grid Zhejiang Electric Power Co Ltd
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Abstract

The utility model discloses a kind of 10kV cable fault simulation device, comprise shell and be installed on end of incoming cables elbow-type joint on shell, connect core, card cage and leading-out terminal elbow-type joint, wherein, four end of incoming cables elbow-type joints are electrically connected with card cage respectively by being connected core in inside with four leading-out terminal elbow-type joints, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, in card cage, combination is provided with fault simulation plug-in unit.The utility model, by fault simulation plug-in unit being carried out the various 10kV cable fault of combine analog in card cage, facilitates practitioner to carry out fault detect training, improves training effectiveness, saves training cost.

Description

A kind of 10kV cable fault simulation device
Technical field
The utility model relates to distribution cable detection technique field.
Background technology
In cable operational process, the reasons such as outside destroy, long-term overlond running, production or construction quality are not good enough all may cause cable to break down.When different electric pressures, distance, electrical leakage voltage size, cable failure degree etc. are different, the fault signature showed and the checkout equipment used are had nothing in common with each other, and this just requires that relevant practitioner has skilled measuring technology and abundant practical experience.
But, the cable line of the actual motion frequency that breaks down is lower, and some employees often also cannot obtain the chance of detection streamer fault for a long time, and measuring technology is difficult to be taken exercise, practical experience accumulation is very slow, directly affects the raising of the level of skill of practitioner.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of 10kV cable fault simulation device, can to be in operation the various faults occurred by accurate simulation 10kV cable line, facilitate practitioner to carry out fault detect training, improve training effectiveness, save training cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of 10kV cable fault simulation device, comprise shell and be installed on end of incoming cables elbow-type joint on shell, connect core, card cage and leading-out terminal elbow-type joint, wherein, four end of incoming cables elbow-type joints are electrically connected with card cage respectively by being connected core in inside with four leading-out terminal elbow-type joints, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, in card cage, combination is provided with fault simulation plug-in unit.
Preferably, described fault simulation plug-in unit comprises normal plug-in unit, broken string open circuit plug-in unit, short-circuit insert, low resistance/high resistance plug-in unit and flashover high resistant plug-in unit.
Preferably, described normal plug-in unit inside comprises a complete 10kV cable metal core.
Preferably, described broken string open circuit plug-in unit inside comprises a 10kV cable metal core disconnected.
Preferably, described short-circuit insert inside comprises two 10kV cable metal cores, two core metal short circuits.
Preferably, described low resistance/high resistance plug-in unit inside comprises two 10kV cable metal cores, is connected with adjustable resistor between two cores.
Preferably, described flashover high resistant plug-in unit inside comprises two 10kV cable metal cores, is connected with high pressure varistor between two cores.
The technical solution adopted in the utility model, by fault simulation plug-in unit being carried out the various 10kV cable fault of combine analog in card cage, facilitates practitioner to carry out fault detect training, improves training effectiveness, saves training cost.
Therefore, the beneficial effects of the utility model are:
1, this device can simulate the various typical faults of 10kV cable, and simulation context is wide, and simulate effect is good, and the fault of simulation accurately can be detected by general electric cable failure detector;
2, this device volume is little, and fault type conversion is flexibly, easy and simple to handle;
3, this device can be applicable to Cable fault examination training and carries out Cable fault examination combat exercise, is conducive to the level of skill improving cable detection personnel, enriches Cable fault examination experience.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 be fault simulation plug-in unit placed side by side time schematic diagram;
Fig. 3 be simulation A phase break open fault time schematic diagram;
Schematic diagram when Fig. 4 is simulation BC phase short trouble;
Schematic diagram when Fig. 5 is simulation CN phase flashover high resistive fault.
Embodiment
As shown in Figure 1, a kind of 10kV cable fault simulation device, it comprises shell 1 and is installed on end of incoming cables elbow-type joint 2 on shell, connects core 3, card cage 4 and leading-out terminal elbow-type joint 5, wherein, four end of incoming cables elbow-type joints 2 are electrically connected with card cage 4 respectively by being connected core 3 in inside with four leading-out terminal elbow-type joints 5, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, in card cage, combination is provided with fault simulation plug-in unit.
As shown in Figure 2, described fault simulation plug-in unit comprises normal plug-in unit 4.1, broken string open circuit plug-in unit 4.2, short-circuit insert 4.3, low resistance/high resistance plug-in unit 4.4 and flashover high resistant plug-in unit 4.5, and above-mentioned five kinds of plug-in units are capable of being combined to be installed in card cage side by side.Wherein, normal plug-in unit inside comprises a complete 10kV cable metal core.Broken string open circuit plug-in unit inside comprises a 10kV cable metal core disconnected.Short-circuit insert inside comprises two 10kV cable metal cores, two core metal short circuits.Low resistance/high resistance plug-in unit inside comprises two 10kV cable metal cores, is connected with adjustable resistor between two cores, its adjustable extent 50 Ω-50M Ω.Flashover high resistant plug-in unit inside comprises two 10kV cable metal cores, is connected with high pressure varistor between two cores.
Utilize above-mentioned 10kV cable fault simulation device to carry out a method for 10kV cable fault simulation, its implementation method is as follows:
(1) simulation broken string open fault.A broken string open circuit plug-in unit 4.2 and three normal plug-in units 4.1 are combined, is installed on side by side in card cage 4 and can simulates broken string open fault.Wherein, if broken string open circuit plug-in unit 4.2 be installed on card cage 4 1., 2., 3., 4. position, be then corresponding in turn to simulation A, B, C, N phase and break open fault.
Wherein, if 1. broken string open circuit plug-in unit 4.2 is installed on position, 3. 4. 2. three normal plug-in units 4.1 be installed on position, then simulate A phase and to break open fault (as shown in Figure 3); If 2. broken string open circuit plug-in unit 4.2 is installed on position, 3. 4. 1. three normal plug-in units 4.1 be installed on position, then simulate B phase and to break open fault; If 3. broken string open circuit plug-in unit 4.2 is installed on position, 2. 4. 1. three normal plug-in units 4.1 be installed on position, then simulate C phase and to break open fault.
(2) short trouble is simulated.A short-circuit insert 4.3 and two normal plug-in units 4.1 are combined, is installed on side by side in card cage 4 and can simulates short trouble.Wherein, if short-circuit insert 4.3 be installed on card cage 4 1. 2., 2. 3., 3. 4. position, be then corresponding in turn to simulation AB, BC, CN short trouble.
Wherein, if 2. 1. short-circuit insert 4.3 is installed on position, 3., 4. two normal plug-in units 4.1 are installed on position, then simulate AB phase short trouble; If 3. 2. short-circuit insert 4.3 is installed on position, 1., 4. two normal plug-in units 4.1 are installed on position, then simulate BC phase short trouble (as shown in Figure 4); If 4. 3. short-circuit insert 4.3 is installed on position, 1., 2. two normal plug-in units 4.1 are installed on position, then simulate CN phase short trouble.
(3) low-resistance or high resistive fault is simulated.A low resistance/high resistance plug-in unit 4.4 and two normal plug-in units 4.1 are combined, is installed on side by side in card cage 4 and can simulates alternate low-resistance or high resistive fault.
Wherein, if the adjustable resistor of low resistance/high resistance plug-in unit 4.4 inside to be set to the arbitrary value of 50 Ω-1000 Ω, then simulate low resistance faults, if the adjustable resistor of low resistance/high resistance plug-in unit 4.4 inside is set to the arbitrary value of 1000 Ω-50M Ω, then simulate high resistive fault; If low resistance/high resistance plug-in unit 4.4 be installed on card cage 4 1. 2., 2. 3., 3. 4. position, be then corresponding in turn to simulation AB, BC, CN low-resistance or high resistive fault.
(4) flashover high resistive fault is simulated.A flashover high resistant plug-in unit 4.5 and two normal plug-in units 4.1 are combined, is installed on side by side in card cage 4 and can simulates flashover high resistive fault.Wherein, if flashover high resistant plug-in unit 4.5 be installed on card cage 4 1. 2., 2. 3., 3. 4. position, be then corresponding in turn to simulation AB, BC, CN flashover high resistive fault.
Wherein, if 2. 1. flashover high resistant plug-in unit 4.5 is installed on position, 3., 4. two normal plug-in units 4.1 are installed on position, then simulate AB phase flashover high resistive fault; If 3. 2. flashover high resistant plug-in unit 4.5 is installed on position, 1., 4. two normal plug-in units 4.1 are installed on position, then simulate BC phase flashover high resistive fault; If 4. 3. flashover high resistant plug-in unit 4.5 is installed on position, 1., 2. two normal plug-in units 4.1 are installed on position, then simulate CN phase flashover high resistive fault (as shown in Figure 5).

Claims (7)

1. a 10kV cable fault simulation device, it is characterized in that: comprise shell and be installed on end of incoming cables elbow-type joint on shell, connect core, card cage and leading-out terminal elbow-type joint, wherein, four end of incoming cables elbow-type joints are electrically connected with card cage respectively by being connected core in inside with four leading-out terminal elbow-type joints, and end of incoming cables elbow-type joint and leading-out terminal elbow-type joint are connected with external cable by device serial connection in actual cable circuit, in card cage, combination is provided with fault simulation plug-in unit.
2. a kind of 10kV cable fault simulation device according to claim 1, is characterized in that: described fault simulation plug-in unit comprises normal plug-in unit, broken string open circuit plug-in unit, short-circuit insert, low resistance/high resistance plug-in unit and flashover high resistant plug-in unit.
3. a kind of 10kV cable fault simulation device according to claim 2, is characterized in that: described normal plug-in unit inside comprises a complete 10kV cable metal core.
4. a kind of 10kV cable fault simulation device according to claim 2, is characterized in that: described broken string open circuit plug-in unit inside comprises a 10kV cable metal core disconnected.
5. a kind of 10kV cable fault simulation device according to claim 2, is characterized in that: described short-circuit insert inside comprises two 10kV cable metal cores, two core metal short circuits.
6. a kind of 10kV cable fault simulation device according to claim 2, is characterized in that: described low resistance/high resistance plug-in unit inside comprises two 10kV cable metal cores, is connected with adjustable resistor between two cores.
7. a kind of 10kV cable fault simulation device according to claim 2, is characterized in that: described flashover high resistant plug-in unit inside comprises two 10kV cable metal cores, is connected with high pressure varistor between two cores.
CN201520016787.0U 2015-01-12 2015-01-12 A kind of 10kV cable fault simulation device Active CN204332204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520016787.0U CN204332204U (en) 2015-01-12 2015-01-12 A kind of 10kV cable fault simulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520016787.0U CN204332204U (en) 2015-01-12 2015-01-12 A kind of 10kV cable fault simulation device

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614604A (en) * 2015-01-12 2015-05-13 国家电网公司 10kV cable fault simulation device and fault simulation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614604A (en) * 2015-01-12 2015-05-13 国家电网公司 10kV cable fault simulation device and fault simulation method
CN104614604B (en) * 2015-01-12 2017-09-26 国家电网公司 A kind of 10kV cable fault simulations device and failure simulation method

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