CN203895837U - Multifunctional high-voltage cable grounding device capable of monitoring load state - Google Patents
Multifunctional high-voltage cable grounding device capable of monitoring load state Download PDFInfo
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- CN203895837U CN203895837U CN201420325101.1U CN201420325101U CN203895837U CN 203895837 U CN203895837 U CN 203895837U CN 201420325101 U CN201420325101 U CN 201420325101U CN 203895837 U CN203895837 U CN 203895837U
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Abstract
The utility model discloses a multifunctional high-voltage cable grounding device capable of monitoring the load state. The grounding device comprises a first protective circuit U1, a second protective circuit U2, switches K7-K9 and binding posts P1-P6. The grounding device has the advantages that different grounding manners are integrated, and switching among a direct grounding mode, a cross connection mode and a protective mode can be safely carried out via a switching instrument according to maintenance requirements; the grounding device can be connected with grounding wires of high-voltage cables in parallel to maintain and replace a cable cross-connected box, a cable protective grounding box and a cable directly grounding box when the cables are live, an original grounding box can be replaced or maintained when cables are live, safe work of maintaining staff can be ensured, and the cable grounding system can be maintained lively; ammeters and voltmeters are integrated in the grounding device to realize real-time online monitoring; and multifunctional high-voltage cable grounding device can be controlled in a phase-split or integrated manner, operation is simple, and movement is convenient.
Description
Technical field
The utility model belongs to cable grounding system overhaul technical field, relates to a kind of multifunctional grounded device of high-tension cable that can monitoring load state.
Background technology
The chief component of system for high voltage cable grounding is the direct grounding box of cable, cable protection case, the cross interconnected case of cable.The major function of high-tension cable protective earthing system is to reduce the induced voltage that operation cable metal protective layer gathers, and gets rid of unnecessary induced current by grounding system.Single-core high-voltage cable adopts single-point grounding pattern, one end ground connection one end protected mode and cross interconnected pattern more at present.If while running into grounding system fault, after answering cable to have a power failure, grounding system is overhauled.
Earthing box for electric cable is applied in 35kV and above cable grounding system more and uses, and because earthing box for electric cable sealing is poor, construction link is not tight control, and nearlyer earthing box for electric cable Frequent Troubles, cause electrical network to be forced to interruption maintenance.Each interruption maintenance, can cause electrical network single line to have a power failure, and user is caused to great economic loss, and causes discharge pressure to adjacent electrical network.The staff who simultaneously matches with power failure increases, and has a power failure that grid switching operation, maintainer's defect elimination, dispatcher are ordered, circuit personnel protect electricity etc. comprising operations staff, has increased the loss of workload and manpower and materials.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of multi-form earthing mode can be carried out integrated, can between the direct ground connection pattern of cable, the cross interconnected pattern of cable, cable protection pattern, carry out safety conversion, and can be charged in the situation that to the cross interconnected case of cable, cable protection grounding box, the direct grounding box of cable carry out inspect and change operation can monitoring load state the multifunctional grounded device of high-tension cable.
For solving the problems of the technologies described above adopted technical scheme be: a kind of multifunctional grounded device of high-tension cable that can monitoring load state, comprises the first protective circuit U1, the second protective circuit U2, K switch 7-K9 and binding post P1 ~ P6; Described the first protective circuit U1 comprises protector R1-R3, voltmeter V1-V3, ammeter A1-A3, K switch 1-K3 and binding post P11 ~ P13; Described the second protective circuit U2 comprises protector R4-R6, voltmeter V4-V6, ammeter A4-A6, K switch 4-K6 and binding post P21 ~ P23;
Described voltmeter V1 is connected between described binding post P1 and ground; After described protector R1 is in parallel with air switch K1, be connected between described binding post P11 and ground;
Described voltmeter V2 is connected between described binding post P2 and ground; After described protector R2 is in parallel with air switch K2, be connected between described binding post P12 and ground;
Described voltmeter V3 is connected between described binding post P3 and ground; After described protector R3 is in parallel with air switch K3, be connected between described binding post P13 and ground;
Described voltmeter V4 is connected between described binding post P4 and ground; After described protector R4 is in parallel with air switch K4, be connected between described binding post P21 and ground;
Described voltmeter V5 is connected between described binding post P5 and ground; After described protector R5 is in parallel with air switch K5, be connected between described binding post P22 and ground;
Described voltmeter V6 is connected between described binding post P6 and ground; After described protector R6 is in parallel with air switch K6, be connected between described binding post P23 and ground;
Described binding post P1 meets described binding post P4 through described ammeter A1, binding post P11, air switch K7, binding post P21, ammeter A4 successively;
Described binding post P2 meets described binding post P5 through described ammeter A2, binding post P12, air switch K8, binding post P22, ammeter A5 successively;
Described binding post P3 meets described binding post P6 through described ammeter A3, binding post P13, air switch K9, binding post P23, ammeter A6 successively.
The model of described protector R1 ~ R6 is BHQ-10/400; The model of described ammeter A1 ~ A6 is AOB194Z-8 × 4-3U; The model of described voltmeter V1 ~ V6 is AOB194Z-8 × 4-3U; The model of described air switch K1 ~ K9 is DZ20L-250/4300.
The beneficial effects of the utility model are: 1, the utility model is undertaken integrated by multi-form earthing mode, built-in protector and grounding system, according to maintenance needs, by switch transition instrument, directly between ground connection pattern, cross interconnected pattern, protected mode, can carry out safe conversion (a case multiplex); 2, by parallel with high-tension cable ground lead, realize cable, charged in the situation that, the cross interconnected case of cable, cable protection grounding box, the direct grounding box of cable have been carried out to inspect and change operation, can in the situation that cable is charged, change or overhaul former cable grounding casing working, the utility model can do temporary grounding system, by being connected with cable grounding line, defect grounding box is isolated, ensure maintainer's safety work, realized the new breakthrough of hotline maintenance cable grounding system; 3, inside of the present utility model is integrated ammeter and voltmeter, after connecting with operation high-tension cable ground lead, can count high-tension cable metal sheath Leakage Current numerical value and the inductive voltage value under monitoring load state by table, after being connected with cable grounding lead-in wire, can carry out banded cable electro-detection, and maintenance time can the current load condition of intuitive analysis by data, for hotline maintenance work provides reliable data analysis foundation, realize real time on-line monitoring; 4, the utility model both can divide phase control, also can entirety control, simple to operate, Mobile portable.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the principle schematic that one group of protective earthing case is carried out to hotline maintenance and monitoring.
Fig. 3 is the principle schematic that two groups of protective earthing casees are carried out to hotline maintenance and monitoring.
Fig. 4 is the principle schematic of carrying out hotline maintenance and monitoring under the cross interconnected protected mode of cable.
In Fig. 1-4, BHJD1---the first cable protection grounding box; BHJD2---the second cable protection grounding box; BHJD3---the 3rd cable protection grounding box; ZJJD1---the direct grounding box of the first cable; ZJJD2---the direct grounding box of the second cable; ZJJD3---the direct grounding box of the 3rd cable; JCHL---cross interconnected case; AJT---A phase cable insulated joint; BJT---B phase cable insulated joint; CJT---C phase cable insulated joint; A---A phase cable; B---B phase cable; C---C phase cable; JCHL---cross interconnected case; A-1, A-2, B-1, B-2, C-1, C-2 are respectively the terminals of cross interconnected grounding box.
Embodiment
Embodiment is as shown in Figure 1 known, and it comprises the first protective circuit U1, the second protective circuit U2, K switch 7-K9 and binding post P1 ~ P6; Described the first protective circuit U1 comprises protector R1-R3, voltmeter V1-V3, ammeter A1-A3, K switch 1-K3 and binding post P11 ~ P13; Described the second protective circuit U2 comprises protector R4-R6, voltmeter V4-V6, ammeter A4-A6, K switch 4-K6 and binding post P21 ~ P23;
Described voltmeter V1 is connected between described binding post P1 and ground; After described protector R1 is in parallel with air switch K1, be connected between described binding post P11 and ground;
Described voltmeter V2 is connected between described binding post P2 and ground; After described protector R2 is in parallel with air switch K2, be connected between described binding post P12 and ground;
Described voltmeter V3 is connected between described binding post P3 and ground; After described protector R3 is in parallel with air switch K3, be connected between described binding post P13 and ground;
Described voltmeter V4 is connected between described binding post P4 and ground; After described protector R4 is in parallel with air switch K4, be connected between described binding post P21 and ground;
Described voltmeter V5 is connected between described binding post P5 and ground; After described protector R5 is in parallel with air switch K5, be connected between described binding post P22 and ground;
Described voltmeter V6 is connected between described binding post P6 and ground; After described protector R6 is in parallel with air switch K6, be connected between described binding post P23 and ground;
Described binding post P1 meets described binding post P4 through described ammeter A1, binding post P11, air switch K7, binding post P21, ammeter A4 successively;
Described binding post P2 meets described binding post P5 through described ammeter A2, binding post P12, air switch K8, binding post P22, ammeter A5 successively;
Described binding post P3 meets described binding post P6 through described ammeter A3, binding post P13, air switch K9, binding post P23, ammeter A6 successively.
The model of described protector R1 ~ R6 is BHQ-10/400; The model of described ammeter A1 ~ A6 is AOB194Z-8 × 4-3U; The model of described voltmeter V1 ~ V6 is AOB194Z-8 × 4-3U; The model of described air switch K1 ~ K9 is DZ20L-250/4300.
The major function of high-tension cable protective earthing system is to reduce the induced voltage that operation cable metal protective layer gathers, and gets rid of unnecessary induced current by grounding system.Single-core high-voltage cable adopts single-point grounding pattern, one end ground connection one end protected mode and cross interconnected pattern more at present.If while running into grounding system fault, after answering cable to have a power failure, grounding system is overhauled.
Embodiment mono-: as shown in Figure 2; the present embodiment one is for the high-tension cable under the directly grounded mode of operation in protection one end, one end; the situation that one group of protective earthing case is overhauled and monitored, while maintenance at the scene, need first to second can monitoring load state the multifunctional grounded device of high-tension cable N1-N2.
(1) if the interior defectiveness of the first cable protection grounding box BHJD1; need hotline maintenance; before maintenance the first cable protection grounding box BHJD1; by first can monitoring load state air switch K1 ~ K3, the K7 ~ K9 of the multifunctional grounded device of high-tension cable N1 all disconnect; then N1 earth connection is connected with the earth, now N1 is protected mode.
Open after the first cable protection grounding box BHJD1 lid, by first can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N1 be connected on the A phase metallic sheath lead-out wire of the first cable protection grounding box BHJD1 side; By first can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N1 be connected on the B phase metallic sheath lead-out wire of the first cable protection grounding box BHJD1 side; By first can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N1 be connected on the C phase metallic sheath lead-out wire of the first cable protection grounding box BHJD1 side.
At the direct grounding box ZJJD1 of the first cable place, by of the present utility model second can monitoring load state air switch K1 ~ K3 closure, K7 ~ K9 of the multifunctional grounded device of high-tension cable N2 disconnect, then N2 earth connection is connected with the earth, now N2 is direct ground connection pattern.
Open after the direct grounding box ZJJD1 of the first cable lid, by second can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N2 be connected on the A phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side; By second can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N2 be connected on the B phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side; By second can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N2 be connected on the C phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side.
Carrying out for first cable protection grounding box BHJD1 when maintenance, first carry out cable grounding Mode change: can by first can monitoring load state air switch K1 ~ K3 closure of the multifunctional grounded device of high-tension cable N1, be direct ground connection pattern; Simultaneously by second can monitoring load state air switch K1 ~ K3 of the multifunctional grounded device of high-tension cable N2 disconnect, be protected mode; At this moment need the first cable protection grounding box BHJD1 of maintenance to be isolated out, it reaches the condition of safety inspection.Advantage one, directly ground connection pattern can be protected staff's safety work, advantage two, whole cable grounding system does not change cable grounding mode.
(2) if the interior defectiveness of the direct grounding box ZJJD1 of the first cable, need hotline maintenance, before the direct grounding box ZJJD1 of maintenance the first cable, by wherein second can monitoring load state air switch K1 ~ K3 closure, K7 ~ K9 of the multifunctional grounded device of high-tension cable N2 disconnect, then N2 earth connection is connected with the earth, now N2 is direct ground connection pattern.
Open after the direct grounding box ZJJD1 of the first cable lid, by second can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N2 be connected on the A phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side; By second can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N2 be connected on the B phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side; By second can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N2 be connected on the C phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side.
In the time carrying out the direct grounding box ZJJD1 maintenance of the first cable; total ground connection of direct grounding box ZJJD1 can be disconnected; now second of the direct grounding box ZJJD1 of the first cable section can monitoring load state the multifunctional grounded device of high-tension cable N2 still in direct ground connection pattern; advantage one; directly ground connection pattern can be protected staff's safety work; advantage two, whole cable grounding system does not change cable grounding mode.
Embodiment bis-: as shown in Figure 3; the present embodiment two is for the high-tension cable under the directly grounded mode of operation in protection one end, one end; the situation that two groups of group protective earthing casees are overhauled and monitored, while maintenance at the scene, need the 3rd to the 5th can monitoring load state the multifunctional grounded device of high-tension cable N3-N5.
(1) if defectiveness in the second to the 3rd cable protection grounding box BHJD2-BHJD3; need hotline maintenance; before maintenance the second to the 3rd cable protection grounding box BHJD2-BHJD3; by the 3rd can monitoring load state air switch K1 ~ K9 of the multifunctional grounded device of high-tension cable N3 all disconnect; then N3 earth connection is connected with the earth, now N3 is protected mode.
Open after the second cable protection grounding box BHJD2 lid, by the 3rd can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N3 be connected on the A phase metallic sheath lead-out wire of the second cable protection grounding box BHJD2 side; By the 3rd can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N3 be connected on the B phase metallic sheath lead-out wire of the second cable protection grounding box BHJD1 side; By the 3rd can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N3 be connected on the C phase metallic sheath lead-out wire of the second cable protection grounding box BHJD1 side.
Open after the 3rd cable protection grounding box BHJD3 lid, by the 3rd can monitoring load state the binding post P4 of the multifunctional grounded device of high-tension cable N3 be connected on the A phase metallic sheath lead-out wire of the 3rd cable protection grounding box BHJD3 side; By the 3rd can monitoring load state the binding post P5 of the multifunctional grounded device of high-tension cable N3 be connected on the B phase metallic sheath lead-out wire of the 3rd cable protection grounding box BHJD3 side; By the 3rd can monitoring load state the binding post P6 of the multifunctional grounded device of high-tension cable N3 be connected on the C phase metallic sheath lead-out wire of the second cable protection grounding box BHJD1 side.
At the direct grounding box ZJJD2 of the second cable place, by the of the present utility model the 4th can monitoring load state air switch K1 ~ K3 closure, K7 ~ K9 of the multifunctional grounded device of high-tension cable N4 disconnect, then N4 earth connection is connected with the earth, now N4 is direct ground connection pattern.
Open after the direct grounding box ZJJD2 of the second cable lid, by the 4th can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N4 be connected on the A phase metallic sheath lead-out wire of the direct grounding box ZJJD2 of the second cable side; By the 4th can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N4 be connected on the B phase metallic sheath lead-out wire of the direct grounding box ZJJD2 of the second cable side; By the 4th can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N4 be connected on the C phase metallic sheath lead-out wire of the direct grounding box ZJJD2 of the second cable side.
At the direct grounding box ZJJD2 of the 3rd cable place, by the of the present utility model the 5th can monitoring load state air switch K1 ~ K3 closure, K7 ~ K9 of the multifunctional grounded device of high-tension cable N5 disconnect, then N5 earth connection is connected with the earth, now N5 is direct ground connection pattern.
Open after the direct grounding box ZJJD3 of the 3rd cable lid, by the 5th can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N5 be connected on the A phase metallic sheath lead-out wire of the direct grounding box ZJJD3 of the 3rd cable side; By the 5th can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N5 be connected on the B phase metallic sheath lead-out wire of the direct grounding box ZJJD3 of the 3rd cable side; By the 5th can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N5 be connected on the C phase metallic sheath lead-out wire of the direct grounding box ZJJD3 of the second cable side.
In the time carrying out the second to the 3rd cable protection grounding box BHJD2-BHJD3 maintenance, first carry out cable grounding Mode change: can by the 3rd can monitoring load state air switch K1 ~ K6 closure of the multifunctional grounded device of high-tension cable N3, be direct ground connection pattern; Simultaneously by the 4th to the 5th can monitoring load state air switch K1 ~ K3 of the multifunctional grounded device of high-tension cable N4-N5 disconnect, make it be respectively protected mode; At this moment need the second to the 3rd cable protection grounding box BHJD2-BHJD3 of maintenance to be isolated out, it reaches respectively the condition of safety inspection.Advantage one, directly ground connection pattern can be protected staff's safety work, advantage two, whole cable grounding system does not change cable grounding mode.
(2) if defectiveness in the direct grounding box ZJJD2-ZJJD3 of the second to the 3rd cable, need hotline maintenance, before the direct grounding box ZJJD2-ZJJD3 of maintenance the second to the 3rd cable, respectively by wherein the 4th to the 5th can monitoring load state air switch K1 ~ K3 closure, K7 ~ K9 of the multifunctional grounded device of high-tension cable N4-N5 disconnect, then N4-N5 earth connection is connected with the earth respectively, now N4-N5 is direct ground connection pattern.
Open after the direct grounding box ZJJD2-ZJJD3 of the second to the 3rd cable lid, by the 4th to the 5th can monitoring load state the binding post P1 of the multifunctional grounded device of high-tension cable N4-N5 be connected respectively on the A phase metallic sheath lead-out wire of the direct grounding box ZJJD2-ZJJD3 of the second to the 3rd cable side; By second can monitoring load state the binding post P2 of the multifunctional grounded device of high-tension cable N2 be connected respectively on the B phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side; By second can monitoring load state the binding post P3 of the multifunctional grounded device of high-tension cable N2 be connected respectively on the C phase metallic sheath lead-out wire of the direct grounding box ZJJD1 of the first cable side.
In the time carrying out the direct grounding box ZJJD2-ZJJD3 maintenance of the second to the 3rd cable, total ground connection of the direct grounding box ZJJD2-ZJJD3 of the second to the 3rd cable can be disconnected respectively, now the 4th of the direct grounding box ZJJD2 of the second cable section the can monitoring load state high-tension cable multifunctional grounded device N4 or the direct grounding box ZJJD3 of the 3rd cable section the 5th can monitoring load state the multifunctional grounded device of high-tension cable N5 still in direct ground connection pattern, advantage one, directly ground connection pattern can be protected staff's safety work, advantage two, whole cable grounding system does not change cable grounding mode, reach the condition of safety inspection.
Embodiment tri-: as shown in Figure 4, the present embodiment three is for the high-tension cable under the cross interconnected protected mode of cable.
The A-1 of cross interconnected grounding box connects on the metallic sheath lead-out wire of A phase cable insulated joint left end, and the A-2 of cross interconnected grounding box connects on the metallic sheath lead-out wire of A phase cable insulated joint right-hand member; The B-1 of cross interconnected grounding box connects on the metallic sheath lead-out wire of B phase cable insulated joint left end, and the B-2 of cross interconnected grounding box connects on the metallic sheath lead-out wire of B phase cable insulated joint right-hand member; The C-1 of cross interconnected grounding box connects on the metallic sheath lead-out wire of C phase cable insulated joint left end, and the C-2 of cross interconnected grounding box connects on the metallic sheath lead-out wire of C phase cable insulated joint right-hand member.
If defectiveness in cross interconnected grounding box, needs hotline maintenance.Before the cross interconnected grounding box of maintenance, air switch K1 ~ K3 of the multifunctional grounded device of high-tension cable N6 that first can monitoring load state by the utility model the 6th disconnects, and air switch K7 ~ K9 closure, is cross interconnected pattern; Secondly the earth connection of the multifunctional grounded device of high-tension cable N6 that can monitoring load state by the utility model the 6th is connected with the earth; Air switch K1 of the present utility model ~ K6 is disconnected; Then binding post P1 is connected on the left end metallic sheath lead-out wire of A phase cable insulated joint, P5 is connected on the right-hand member metallic sheath lead-out wire of A phase cable insulated joint; Binding post P2 is connected on the left end metallic sheath lead-out wire of B phase cable insulated joint, P6 is connected on the right-hand member metallic sheath lead-out wire of B phase cable insulated joint; Binding post P3 is connected on the left end metallic sheath lead-out wire of C phase cable insulated joint, P4 is connected on the right-hand member metallic sheath lead-out wire of C phase cable insulated joint.
After connecting, staff can disconnect defective cross interconnected grounding box and cable, at this moment needs the cross interconnected grounding box of maintenance to be isolated out, makes it reach the condition of safety inspection.
Embodiment tetra-: as shown in Figure 2, if air switch K1 ~ K3 closure of U1 in the multifunctional grounded device of high-tension cable that can monitoring load state by first in Fig. 2 N1, first can monitoring load state the multifunctional grounded device of high-tension cable N1 be direct ground connection pattern.
If air switch K1 ~ K3 closure of U1 in the multifunctional grounded device of high-tension cable that can monitoring load state by second in Fig. 2 N2, first can monitoring load state the multifunctional grounded device of high-tension cable N2 be direct ground connection pattern.
Embodiment five: as shown in Figure 3, if air switch K1 ~ K3 closure of U1 in the multifunctional grounded device of high-tension cable that can monitoring load state by the 3rd in Fig. 3 N3, the 3rd can the multifunctional grounded device of the high-tension cable N3 of monitoring load state in U1 be direct ground connection pattern.
If air switch K4 ~ K6 closure of U2 in the multifunctional grounded device of high-tension cable that can monitoring load state by the 3rd in Fig. 3 N3, the 3rd can monitoring load state the U2 of the multifunctional grounded device of high-tension cable N3 be direct ground connection pattern.
If air switch K1 ~ K3 closure of U1 in the multifunctional grounded device of high-tension cable that can monitoring load state by the 4th in Fig. 3 N4, the 4th can monitoring load state the U1 of the multifunctional grounded device of high-tension cable N4 be direct ground connection pattern.
If air switch K1 ~ K3 closure of U1 in the multifunctional grounded device of high-tension cable that can monitoring load state by the 5th in Fig. 3 N5, the 5th can monitoring load state the U1 of the multifunctional grounded device of high-tension cable N5 be direct ground connection pattern.
Embodiment six: if by the air switch K7 in Fig. 4 ~ K9 is disconnected, by air switch K1 ~ K6 closure of U1-U2, be now the direct ground connection pattern in the situation of cross interconnected work pattern.
Embodiment seven: in the time implementing to divide phase control, as in Figure 2-4, if separately to a certain pattern that is grounded mutually, as the terminals swinging earth that need to be connected with P1, just only that air switch K1 is closed.
Claims (2)
1. the multifunctional grounded device of high-tension cable that can monitoring load state, is characterized in that: comprise the first protective circuit U1, the second protective circuit U2, K switch 7-K9 and binding post P1 ~ P6; Described the first protective circuit U1 comprises protector R1-R3, voltmeter V1-V3, ammeter A1-A3, K switch 1-K3 and binding post P11 ~ P13; Described the second protective circuit U2 comprises protector R4-R6, voltmeter V4-V6, ammeter A4-A6, K switch 4-K6 and binding post P21 ~ P23;
Described voltmeter V1 is connected between described binding post P1 and ground; After described protector R1 is in parallel with air switch K1, be connected between described binding post P11 and ground;
Described voltmeter V2 is connected between described binding post P2 and ground; After described protector R2 is in parallel with air switch K2, be connected between described binding post P12 and ground;
Described voltmeter V3 is connected between described binding post P3 and ground; After described protector R3 is in parallel with air switch K3, be connected between described binding post P13 and ground;
Described voltmeter V4 is connected between described binding post P4 and ground; After described protector R4 is in parallel with air switch K4, be connected between described binding post P21 and ground;
Described voltmeter V5 is connected between described binding post P5 and ground; After described protector R5 is in parallel with air switch K5, be connected between described binding post P22 and ground;
Described voltmeter V6 is connected between described binding post P6 and ground; After described protector R6 is in parallel with air switch K6, be connected between described binding post P23 and ground;
Described binding post P1 meets described binding post P4 through described ammeter A1, binding post P11, air switch K7, binding post P21, ammeter A4 successively;
Described binding post P2 meets described binding post P5 through described ammeter A2, binding post P12, air switch K8, binding post P22, ammeter A5 successively;
Described binding post P3 meets described binding post P6 through described ammeter A3, binding post P13, air switch K9, binding post P23, ammeter A6 successively.
2. a kind of multifunctional grounded device of high-tension cable that can monitoring load state according to claim 1, is characterized in that: the model of described protector R1 ~ R6 is BHQ-10/400; The model of described ammeter A1 ~ A6 is AOB194Z-8 × 4-3U; The model of described voltmeter V1 ~ V6 is AOB194Z-8 × 4-3U; The model of described air switch K1 ~ K9 is DZ20L-250/4300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325101.1U CN203895837U (en) | 2014-06-18 | 2014-06-18 | Multifunctional high-voltage cable grounding device capable of monitoring load state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325101.1U CN203895837U (en) | 2014-06-18 | 2014-06-18 | Multifunctional high-voltage cable grounding device capable of monitoring load state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895837U true CN203895837U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420325101.1U Withdrawn - After Issue CN203895837U (en) | 2014-06-18 | 2014-06-18 | Multifunctional high-voltage cable grounding device capable of monitoring load state |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104029A (en) * | 2014-06-18 | 2014-10-15 | 国家电网公司 | Multifunctional high-voltage cable earthing device capable of monitoring load state |
| CN107843806A (en) * | 2017-10-30 | 2018-03-27 | 阳光电源股份有限公司 | A kind of Wiring detection method, device and photovoltaic generating system |
| CN112018672A (en) * | 2020-09-16 | 2020-12-01 | 国网江西省电力有限公司南昌供电分公司 | Electrified repair method for cross-connection grounding system of power transmission cable |
-
2014
- 2014-06-18 CN CN201420325101.1U patent/CN203895837U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104029A (en) * | 2014-06-18 | 2014-10-15 | 国家电网公司 | Multifunctional high-voltage cable earthing device capable of monitoring load state |
| CN104104029B (en) * | 2014-06-18 | 2016-10-19 | 国家电网公司 | A kind of multifunctional grounded device of high tension cable monitoring load condition |
| CN107843806A (en) * | 2017-10-30 | 2018-03-27 | 阳光电源股份有限公司 | A kind of Wiring detection method, device and photovoltaic generating system |
| CN107843806B (en) * | 2017-10-30 | 2020-08-28 | 阳光电源股份有限公司 | Wiring detection method and device and photovoltaic power generation system |
| CN112018672A (en) * | 2020-09-16 | 2020-12-01 | 国网江西省电力有限公司南昌供电分公司 | Electrified repair method for cross-connection grounding system of power transmission cable |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20161012 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |