CN204332747U - It is anti-that banded cable electricity closes earthing interlocker by mistake, anti-banded cable earthing closes on-load switch interlocker by mistake - Google Patents
It is anti-that banded cable electricity closes earthing interlocker by mistake, anti-banded cable earthing closes on-load switch interlocker by mistake Download PDFInfo
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- CN204332747U CN204332747U CN201520055015.8U CN201520055015U CN204332747U CN 204332747 U CN204332747 U CN 204332747U CN 201520055015 U CN201520055015 U CN 201520055015U CN 204332747 U CN204332747 U CN 204332747U
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Abstract
The utility model provides a kind of anti-banded cable electricity to close earthing interlocker, anti-banded cable earthing conjunction on-load switch interlocker by mistake by mistake, and above-mentioned anti-banded cable electricity closes earthing interlocker by mistake, comprises under-voltage relay, the first power supply changeover device, the first electromagnet; The power port of under-voltage relay connects external power source, and the normally opened contact of under-voltage relay connects the first electromagnet by the first power supply changeover device, and the first electromagnet is arranged on above the handle hole of earthing, and the display input of under-voltage relay connects electrification display; The normally opened contact of under-voltage relay closes and normally-closed contact disconnects, and the first electromagnet powers on, and the magnetic post of the first electromagnet blocks the handle hole of earthing, earthing operation locking; The normally opened contact of under-voltage relay disconnects and normally-closed contact closes, the first electromagnet power-off, and the magnetic post of the first electromagnet is regained from the handle hole of earthing, and earthing operation unlocks; Under-voltage relay, for intercepting the voltage signal of described electrification display, obtains voltage swing.
Description
Technical field
The utility model relates to technical field of electric power, particularly relates to a kind of anti-banded cable electricity and closes earthing interlocker, anti-banded cable earthing conjunction on-load switch interlocker by mistake by mistake.
Background technology
At present, the anti-misoperation of most high-voltage ring network switch cabinet is mainly by mechanical latching, namely one or more shell fragment is designed at switch cubicle on-load switch and earthing handle hole place, switch cubicle on-load switch shell fragment when "on" position is made to block earthing handle hole, switch-cabinet grounding cutter shell fragment when "on" position blocks the handle hole of on-load switch, reaches mechanical latching anti-misoperation effect.But the switch cubicle of above-mentioned mechanical latching technology there is the charged conjunction earthing by mistake of cable in the stand-by state and cutter with ground misses the risk of closing on-load switch, and fail safe is low.
Utility model content
Based on this, be necessary in prior art, there is the charged conjunction earthing by mistake of cable in switch cubicle and cutter with ground misses the risk of closing on-load switch in the stand-by state, the technical problem that fail safe is low, provides a kind of anti-banded cable electricity to close earthing interlocker, anti-banded cable earthing conjunction on-load switch interlocker by mistake by mistake.
A kind of anti-banded cable electricity closes earthing interlocker by mistake, comprises under-voltage relay, the first power supply changeover device, the first electromagnet;
The power port of described under-voltage relay connects external power source, the normally opened contact of under-voltage relay connects the first electromagnet by the first power supply changeover device, first electromagnet is arranged on above the handle hole of earthing, and the display input of described under-voltage relay connects electrification display;
The normally opened contact of described under-voltage relay closes and normally-closed contact disconnects, and the first electromagnet powers on, and the magnetic post of the first electromagnet blocks the handle hole of earthing, earthing operation locking;
The normally opened contact of described under-voltage relay disconnects and normally-closed contact closes, the first electromagnet power-off, and the magnetic post of the first electromagnet is regained from the handle hole of earthing, and earthing operation unlocks;
Described under-voltage relay, for intercepting the voltage signal of described electrification display, obtains voltage swing.
The anti-banded cable electricity that the utility model provides closes in earthing interlocker by mistake, the normally opened contact of under-voltage relay, normally-closed contact can disconnect or close and the first electromagnet is powered on or power-off, the mistake making earthing operation locking or unblock prevent cable in charged situation closes earthing, improves the fail safe of respective switch cabinet.
A kind of anti-banded cable earthing closes on-load switch interlocker by mistake, comprises under-voltage relay, the first power supply changeover device, second source transducer, the first electromagnet, the second electromagnet;
The power port of described under-voltage relay connects external power source, the normally opened contact of under-voltage relay connects the first electromagnet by the first power supply changeover device, first electromagnet is arranged on above the handle hole of earthing, and the display input of described under-voltage relay connects electrification display;
The normally-closed contact of described under-voltage relay connects the second electromagnet by second source transducer, and the second electromagnet is arranged on above the handle hole of on-load switch;
The normally opened contact of described under-voltage relay closes and normally-closed contact disconnects, first electromagnet powers on, the magnetic post of the first electromagnet blocks the handle hole of earthing, earthing operation locking, second electromagnet power-off, the magnetic post of the second electromagnet is regained from the handle hole of on-load switch, and on-load switch operation unlocks;
The normally opened contact of described under-voltage relay disconnects and normally-closed contact closes, first electromagnet power-off, the magnetic post of the first electromagnet is regained from the handle hole of earthing, earthing operation unlocks, second electromagnet powers on, the magnetic post of the second electromagnet blocks the handle hole of on-load switch, on-load switch operation locking;
Described under-voltage relay, for intercepting the voltage signal of described electrification display, obtains voltage swing.
The anti-banded cable earthing that the utility model provides closes in on-load switch interlocker by mistake, and the normally opened contact of under-voltage relay, normally-closed contact can disconnect or close, and when making cable charged, earthing operation locking, prevents the charged mistake of cable from closing earthing; When cable has a power failure, on-load switch operation locking, when preventing cable from having a power failure, cutter with ground closes on-load switch by mistake; Effectively can prevent the mistake between earthing and on-load switch from closing, improve the fail safe of respective switch cabinet.
Accompanying drawing explanation
Fig. 1 is that the anti-banded cable electricity of an embodiment closes earthing interlocker structural representation by mistake;
Fig. 2 is the 10kV load incoming line cabinet structural representation of an embodiment;
Fig. 3 is that the anti-banded cable earthing of an embodiment closes on-load switch interlocker structural representation by mistake;
Fig. 4 is the 10kV load contact cabinet schematic diagram of an embodiment.
Embodiment
The embodiment that the anti-banded cable electricity provided the utility model below in conjunction with accompanying drawing closes earthing interlocker by mistake, anti-banded cable earthing misses conjunction on-load switch interlocker is described in detail.
With reference to figure 1, Figure 1 shows that the anti-banded cable electricity of an embodiment closes earthing interlocker structural representation by mistake, comprise under-voltage relay 11, first power supply changeover device 12, first electromagnet 13;
The power port of described under-voltage relay 11 connects external power source 15, the normally opened contact of under-voltage relay 11 connects the first electromagnet 13 by the first power supply changeover device 12, first electromagnet 13 is arranged on above the handle hole 16 of earthing, and the display input of described under-voltage relay 11 connects electrification display 14;
The normally opened contact of described under-voltage relay 11 closes and normally-closed contact disconnects, and the first electromagnet 13 powers on, and the magnetic post of the first electromagnet 13 blocks the handle hole of earthing, earthing operation locking;
The normally opened contact of described under-voltage relay 11 disconnects and normally-closed contact closes, the first electromagnet 13 power-off, and the magnetic post of the first electromagnet 13 is regained from the handle hole of earthing, and earthing operation unlocks;
Described under-voltage relay 11, for intercepting the voltage signal of described electrification display 14, obtains voltage swing.
As an embodiment, above-mentioned anti-banded cable electricity closes earthing interlocker by mistake and can be applied in the switch cubicle of 10kV (kilovolt), the operating voltage of the first power supply changeover device 12 can be AC (Alternating Current, alternating current) 220V, the AC220V that under-voltage relay 11 exports can be converted to DC (Direct Current by the first power supply changeover device 12, direct current) 12V, and this d. c. voltage signal is sent to the first electromagnet 13 place, the operating voltage of the first electromagnet 13 can be DC12V, under-voltage relay 11 can be digital under-voltage relay, its voltage range that can detect is AC 0-500V.
The anti-banded cable electricity that the present embodiment provides closes in earthing interlocker by mistake, the normally opened contact of under-voltage relay 11, normally-closed contact can disconnect or close and the first electromagnet 13 is powered on or power-off, the mistake making earthing operation locking or unblock prevent cable in charged situation closes on-load switch, improves the fail safe of respective switch cabinet.
As an embodiment, the disconnection of above-mentioned under-voltage relay 11 normally opened contact, normally-closed contact regulates with the closed voltage that can show according to electrification display 14, such as, the voltage that electrification display 14 shows exceedes preset voltage value, normally opened contact can close and normally-closed contact disconnects, do not exceed preset voltage value, normally opened contact can disconnect and normally-closed contact closes.
In one embodiment, said external power supply can be AC power;
Described first power supply changeover device is used for alternating current to be converted to direct current.
As an embodiment, the voltage of above-mentioned AC power can be 220V.In the present embodiment, use AC power to power to under-voltage relay, the stability of power supply can be ensured.220V alternating current can provide from daily household electricity, makes the acquisition of this power supply more convenient.
In one embodiment, said external power supply passes through 15mm
2(square millimeter) annealed copper wire connects the power port of under-voltage relay.
In the present embodiment, cross-sectional area is 1.5mm
2annealed copper wire there is excellent conductivity, connect the power port of AC power and under-voltage relay with it, the loss in current delivery process can be reduced.
In one embodiment, above-mentioned anti-banded cable electricity closes earthing interlocker by mistake and can be arranged in 10kV load incoming line cabinet as shown in Figure 2, as diagram, label 12 is the first power supply changeover device, 14 is electrification display, the normally opened contact of under-voltage relay 11 closes and normally-closed contact disconnects, first electromagnet 13 powers on, and the magnetic post of the first electromagnet 13 blocks the handle hole 16 of earthing, earthing operation locking.
With reference to figure 3, Figure 3 shows that the anti-banded cable earthing of an embodiment closes on-load switch interlocker structural representation by mistake, comprise under-voltage relay 21, first power supply changeover device 22, second source transducer 27, first electromagnet 23, second electromagnet 28;
The power port of described under-voltage relay 21 connects external power source 25, the normally opened contact of under-voltage relay 21 connects the first electromagnet 23 by the first power supply changeover device 22, first electromagnet 23 is arranged on above the handle hole 26 of earthing, and the display input of described under-voltage relay 21 connects electrification display 24;
The normally-closed contact of described under-voltage relay 21 also connects the second electromagnet 28, second electromagnet 28 by second source transducer 27 and is arranged on above the handle hole 29 of on-load switch;
The normally opened contact of described under-voltage relay 21 closes and normally-closed contact disconnects, first electromagnet 23 powers on, the magnetic post of the first electromagnet 23 blocks the handle hole of earthing, earthing operation locking, second electromagnet 28 power-off, the magnetic post of the second electromagnet 28 is regained from the handle hole of on-load switch, and on-load switch operation unlocks;
The normally opened contact of described under-voltage relay 21 disconnects and normally-closed contact closes, first electromagnet 23 power-off, the magnetic post of the first electromagnet 23 is regained from the handle hole of earthing, earthing operation unlocks, second electromagnet 28 powers on, the magnetic post of the second electromagnet 28 blocks the handle hole of on-load switch, on-load switch operation locking;
Described under-voltage relay 21, for intercepting the voltage signal of described electrification display 24, obtains voltage swing.
As an embodiment, above-mentioned anti-banded cable earthing closes on-load switch interlocker by mistake, can be applied in the switch cubicle of 10kV, the operating voltage of the first power supply changeover device 22 and second source transducer 27 can be all AC220V, the AC220V that under-voltage relay 21 exports can be converted to DC (Direct Current by the first power supply changeover device 22 and second source transducer 27, direct current) 12V, and this d. c. voltage signal is sent to respectively the first electromagnet 23 and the second electromagnet 28 place, the operating voltage of the first electromagnet 23 and the second electromagnet 28 can be DC12V, under-voltage relay 21 can be digital under-voltage relay, its voltage range that can detect is AC 0-500V.
The anti-banded cable earthing of the present embodiment closes in on-load switch interlocker by mistake, and the normally opened contact of under-voltage relay 21, normally-closed contact can disconnect or close, and when making cable charged, cutter operation locking with ground, prevents the charged mistake of cable from closing earthing; When cable has a power failure, on-load switch operation locking, when preventing cable from having a power failure, cutter with ground closes on-load switch by mistake; Effectively can prevent the mistake between earthing and on-load switch from closing, improve the fail safe of respective switch cabinet.
In one embodiment, said external power supply can be AC power;
Above-mentioned first power supply changeover device may be used for alternating current to be converted to direct current.
As an embodiment, the voltage of above-mentioned AC power can be 220V.In the present embodiment, use AC power to power to under-voltage relay, the stability of power supply can be ensured.220V alternating current can provide from daily household electricity, makes the acquisition of this power supply more convenient.
In one embodiment, said external power supply can pass through 15mm
2annealed copper wire connects the power port of under-voltage relay.
In the present embodiment, cross-sectional area is 1.5mm
2annealed copper wire there is excellent conductivity, connect the power port of AC power and under-voltage relay with it, the loss in current delivery process can be reduced.
In one embodiment, above-mentioned anti-banded cable earthing closes the on-load switch interlocker 10kV load that can be arranged on as shown in Figure 4 by mistake and gets in touch with in cabinet, as diagram, label 22 is the first power supply changeover device, 27 is second source transducer, 24 is electrification display, the normally opened contact of under-voltage relay 21 closes and normally-closed contact disconnects, first electromagnet 23 powers on, the magnetic post of the first electromagnet 23 blocks the handle hole 26 of earthing, earthing operation locking, second electromagnet 28 power-off, the magnetic post of the second electromagnet 28 is regained from the handle hole 29 of on-load switch, on-load switch operation unlocks.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. anti-banded cable electricity closes an earthing interlocker by mistake, it is characterized in that, comprises under-voltage relay, the first power supply changeover device, the first electromagnet;
The power port of described under-voltage relay connects external power source, the normally opened contact of under-voltage relay connects the first electromagnet by the first power supply changeover device, first electromagnet is arranged on above the handle hole of earthing, and the display input of described under-voltage relay connects electrification display;
The normally opened contact of described under-voltage relay closes and normally-closed contact disconnects, and the first electromagnet powers on, and the magnetic post of the first electromagnet blocks the handle hole of earthing, earthing operation locking;
The normally opened contact of described under-voltage relay disconnects and normally-closed contact closes, the first electromagnet power-off, and the magnetic post of the first electromagnet is regained from the handle hole of earthing, and earthing operation unlocks;
Described under-voltage relay, for intercepting the voltage signal of described electrification display, obtains voltage swing.
2. anti-banded cable electricity according to claim 1 closes earthing interlocker by mistake, and it is characterized in that, described external power source is AC power;
Described first power supply changeover device is used for alternating current to be converted to direct current.
3. anti-banded cable electricity according to claim 2 closes earthing interlocker by mistake, and it is characterized in that, the voltage of described AC power is 220V.
4. anti-banded cable electricity according to claim 1 closes earthing interlocker by mistake, and it is characterized in that, described external power source passes through 15mm
2annealed copper wire connects the power port of under-voltage relay.
5. anti-banded cable earthing closes an on-load switch interlocker by mistake, it is characterized in that, comprises under-voltage relay, the first power supply changeover device, second source transducer, the first electromagnet, the second electromagnet;
The power port of described under-voltage relay connects external power source, the normally opened contact of under-voltage relay connects the first electromagnet by the first power supply changeover device, first electromagnet is arranged on above the handle hole of earthing, and the display input of described under-voltage relay connects electrification display;
The normally-closed contact of described under-voltage relay connects the second electromagnet by second source transducer, and the second electromagnet is arranged on above the handle hole of on-load switch;
The normally opened contact of described under-voltage relay closes and normally-closed contact disconnects, first electromagnet powers on, the magnetic post of the first electromagnet blocks the handle hole of earthing, earthing operation locking, second electromagnet power-off, the magnetic post of the second electromagnet is regained from the handle hole of on-load switch, and on-load switch operation unlocks;
The normally opened contact of described under-voltage relay disconnects and normally-closed contact closes, first electromagnet power-off, the magnetic post of the first electromagnet is regained from the handle hole of earthing, earthing operation unlocks, second electromagnet powers on, the magnetic post of the second electromagnet blocks the handle hole of on-load switch, on-load switch operation locking;
Described under-voltage relay, for intercepting the voltage signal of described electrification display, obtains voltage swing.
6. anti-banded cable earthing according to claim 5 closes on-load switch interlocker by mistake, and it is characterized in that, described external power source is AC power;
Described first power supply changeover device is used for alternating current to be converted to direct current.
7. anti-banded cable earthing according to claim 6 closes on-load switch interlocker by mistake, and it is characterized in that, the voltage of described AC power is 220V.
8. anti-banded cable earthing according to claim 5 closes on-load switch interlocker by mistake, and it is characterized in that, described external power source passes through 15mm
2annealed copper wire connects the power port of under-voltage relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055015.8U CN204332747U (en) | 2015-01-26 | 2015-01-26 | It is anti-that banded cable electricity closes earthing interlocker by mistake, anti-banded cable earthing closes on-load switch interlocker by mistake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055015.8U CN204332747U (en) | 2015-01-26 | 2015-01-26 | It is anti-that banded cable electricity closes earthing interlocker by mistake, anti-banded cable earthing closes on-load switch interlocker by mistake |
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| CN204332747U true CN204332747U (en) | 2015-05-13 |
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| CN201520055015.8U Active CN204332747U (en) | 2015-01-26 | 2015-01-26 | It is anti-that banded cable electricity closes earthing interlocker by mistake, anti-banded cable earthing closes on-load switch interlocker by mistake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783287A (en) * | 2016-12-23 | 2017-05-31 | 国网浙江杭州市富阳区供电公司 | A kind of ground connection closure switch blocking device for ring main unit interconnector |
| CN113990698A (en) * | 2021-11-02 | 2022-01-28 | 广东电网有限责任公司 | Prevent outdoor looped netowrk cabinet of maloperation |
-
2015
- 2015-01-26 CN CN201520055015.8U patent/CN204332747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783287A (en) * | 2016-12-23 | 2017-05-31 | 国网浙江杭州市富阳区供电公司 | A kind of ground connection closure switch blocking device for ring main unit interconnector |
| CN106783287B (en) * | 2016-12-23 | 2019-07-30 | 国网浙江杭州市富阳区供电公司 | A kind of ground connection closure switch blocking device for ring network cabinet interconnector |
| CN113990698A (en) * | 2021-11-02 | 2022-01-28 | 广东电网有限责任公司 | Prevent outdoor looped netowrk cabinet of maloperation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200929 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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| TR01 | Transfer of patent right |