CN204903632U - High voltage live anti -misoperation lockout drive arrangement - Google Patents
High voltage live anti -misoperation lockout drive arrangement Download PDFInfo
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- CN204903632U CN204903632U CN201520574731.7U CN201520574731U CN204903632U CN 204903632 U CN204903632 U CN 204903632U CN 201520574731 U CN201520574731 U CN 201520574731U CN 204903632 U CN204903632 U CN 204903632U
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- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000010354 integration Effects 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 6
- 238000012795 verification Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a high voltage live anti -misoperation lockout drive arrangement correspond to gather the current signal that A, B, the C three -phase high voltage live body revealed respectively through three sensors, and this anti -misoperation lockout drive arrangement is equipped with and prevents mistake device interface, it is connected with preventing the mistake device to prevent mistake device interface, arbitrary one when being electrified state more than mutually in the three -phase high voltage live body, anti -misoperation lockout drive control prevents that the mistake device locks, prevent that mistake device interface includes electromagnetic lock interface and computer key interface, the integration of computer key interface has voltage detecting type circuit, current detection type circuit, resistance detection type circuit. The utility model discloses an unified interface has adapted to the multiple electric mode of testing.
Description
Technical field
The utility model relates to power technology, particularly relates to electrification in high voltage detection technique.
Background technology
HV live displaying is the whether charged a kind of device in index line road, and it can point out site operation personnel intuitively, to a certain degree prevent mistakenly entering charged chamber and maloperation; Secondly can carry out interface with error-proof device includes forced blocking in.External high voltage display device is integrated on set of equipments more, only possesses Presentation Function, does not have blocking function.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of electrification in high voltage anti-misoperation locking drive unit, realizes the forced blocking function of multiple interfaces.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of electrification in high voltage anti-misoperation locking drive unit, by three sensors corresponding current signal gathering A, B, C three-phase high-voltage electrified body and reveal respectively, this anti-misoperation locking drive unit is provided with error-proof device interface, and described error-proof device interface is connected with error-proof device; When being electriferous state more than any mutually in three-phase high-voltage electrified body, described anti-misoperation locking drive unit controls error-proof device and carries out locking, and described error-proof device interface comprises electromagnetic lock interface and computer key interface.
Preferably, described computer key Interface integration has voltage detecting type circuit, current detection type circuit, resistance detection type circuit.
Preferably, described voltage detecting type circuit comprises resistance R1, resistance R2, voltage table, the HV live displaying output contact of series connection, and time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and voltage table detects that open-circuit voltage is 0V.
Preferably, described current detection type circuit comprises resistance R1, resistance R2, reometer, the HV live displaying output contact of series connection, and time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and reometer detects that short-circuit current is 0A.
Preferably, described resistance detection type circuit comprises resistance R1, resistance R2, the HV live displaying output contact of series connection, described HV live displaying output contact is parallel with an ohmmeter, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and the resistance that ohmmeter detects is for infinitely great.
The utility model is divided into by three sensors Cai Ji the signal of " A, B, C " three-phase high-voltage electrified body Leakage Current, and send high voltage display device to and compare judgement, when judged result is electrification in high voltage, one road signal shows for driving the LED of display module, complete charged Presentation Function, another road Signal transmissions, to anti-misoperation locking drive unit, for latch actuation, completes locking output function.
In addition, error-proof device interface is provided with electromagnetic lock interface and computer key interface, adapt to two kinds of error-proof devices that electric system is main, computer key Interface integration has voltage detecting type circuit, current detection type circuit, resistance detection type circuit, and unified interface has adapted to multiple electrical verification mode.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Fig. 1 is structure principle chart of the present utility model;
Fig. 2 is the schematic diagram of voltage detecting type circuit;
Fig. 3 is the schematic diagram of current detection type circuit;
Fig. 4 is the schematic diagram of resistance detection type circuit.
Embodiment
As shown in Figure 1, a kind of electrification in high voltage pick-up unit, comprise sensor, high voltage display device 10, anti-misoperation locking drive unit, described sensor is provided with three, described three sensors corresponding A, B, C three-phase high-voltage electrified body respectively, described sensor gathers the current signal that high-voltage charged body is revealed, described high voltage display device shows high-voltage charged body electriferous state, described anti-misoperation locking drive unit is provided with driving circuit 11 and error-proof device interface, and described error-proof device interface is connected with error-proof device; When in three-phase high-voltage electrified body, more than any phase (containing a phase, two-phase, three-phase) is for electriferous state, described high voltage display device is then shown as electriferous state, and described anti-misoperation locking drive unit control error-proof device carries out locking simultaneously.
Through investigation, existing Outdoor Trusses For Transformer Substation circuit all configures lightning arrester, and the Leakage Current signal of lightning arrester can be used as the sensor current signal of sensor, is input in display main frame, through processing accordingly, and the electriferous state of display device.
In addition, consider the actual conditions of in-site installation, safe operation, have employed electromagnetic type punching current sensor, select initial permeability high, the little permalloy of loss does iron core.This sensor accurately can detect the power current of 30uA ~ 15mA, accuracy 1%.There is fabulous temperature characterisitic and interference of electromagnetic field ability, meet the precise requirements of the equipment sampling under the interference of scene, complicated power station completely.
Sensor outer housing size: 42x40x18 (mm), empty diameter: the 22mm of punching, sensor outer housing is stainless steel substrates, and coil is 1000 circles, ER effect than 1000:1, input current 30 μ A-150mA, output current 30nA-150 μ A.Coil output line is 3 core shielding lines, and 2 is current output line, and another single line connects stainless steel casing.Sensor is 1% in the testing current accuracy of 30 μ A-150mA scopes; When no current inputs, measuring current value <5 μ A; If therefore measuring current value >30 μ A in actual use, and when being 50HZ (on-the-spot frequency has certain error) sine wave, can think that lightning arrester works in electriferous state.Described sensor is parallel with TVS pipe at current output terminal, when there being Lightning Over-voltage to occur, clamps down on current potential at certain magnitude of voltage, prevents from damaging collecting unit.
Wherein, high voltage display device is provided with electrification in high voltage analysis module, described electrification in high voltage analysis module is analyzed the current signal that the high-voltage charged body of sensor collection is revealed, when judging in three-phase high-voltage electrified body more than any phase as electriferous state, described electrification in high voltage analysis module by omicronff signal transmission to display module and anti-misoperation locking drive unit.
Current electric system mainly contains two kinds of error-proof devices, first is electromagnetic lock, the second is error proof locking system of microcomputer, anti-misoperation locking drive unit is fairly simple with coordinating of electromagnetic lock, as long as controlled the operating power of electromagnetic lock by the output contact of charged display, comparatively speaking, the interface of error proof locking system of microcomputer is just much complicated, usually have and detect idle contact, voltage and current 3 kinds, error-proof device interface of the present utility model is exactly the unified interface simultaneously solving these 3 kinds of electrical verification modes.
Wherein, error-proof device interface comprises electromagnetic lock interface 12 and computer key interface 13.Electromagnetic lock interface 12 is for coordinating with electromagnetic lock, and described computer key Interface integration has voltage detecting type circuit, current detection type circuit, resistance detection type circuit, to adapt to multiple electrical verification mode.
As shown in Figure 2, described voltage detecting type circuit comprises resistance R1, resistance R2, voltage table, the HV live displaying output contact of series connection, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and voltage table detects that open-circuit voltage is 0V.The voltage table measurement function of computer key by detecting 1, the magnitude of voltage of 2 judges that whether circuit charged, and write anti-mis-logical and carry out forced blocking grounding switch or forbid hanging temporary ground wire.
As shown in Figure 3, described current detection type circuit comprises resistance R1, resistance R2, reometer, the HV live displaying output contact of series connection, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and reometer detects that short-circuit current is 0A.The reometer measurement function of computer key by detecting 3, the short-circuit current value of 4 judges that whether circuit charged, and write anti-mis-logical and carry out forced blocking grounding switch or forbid hanging temporary ground wire.
As shown in Figure 4, described resistance detection type circuit comprises resistance R1, resistance R2, the HV live displaying output contact of series connection, described HV live displaying output contact is parallel with an ohmmeter, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and the resistance that ohmmeter detects is for infinitely great.The ohmmeter measurement function of computer key by detecting 5, the resistance value of 6 judges that whether circuit charged, and write anti-mis-logical and carry out forced blocking grounding switch or forbid hanging temporary ground wire.
The utility model is integrated with 3 kinds of electrical verification modes, but reality has only used one when wiring, such as: if anti-misoperation locking is voltage-type, so just with the circuit connection of voltage detecting type; If anti-misoperation locking is current mode, so just use current detection type circuit connection; If anti-misoperation locking is resistive type, so just with the circuit connection of resistance detection type.
The utility model can meet all error proof locking system of microcomputer computer key electrical verification demands, and wiring is simple.Error proof locking system of microcomputer computer key is handheld device; particularly during rainy weather operation; the hidden danger of electric leakage is had during electrical verification; this Interface design has R1, R2 to be current limiting safeguard resistor; electric current (voltage) is limited in safe range, prevents the personal injury that 220V voltage causes operating personnel.
Claims (5)
1. an electrification in high voltage anti-misoperation locking drive unit, it is characterized in that: by three sensors corresponding current signal gathering A, B, C three-phase high-voltage electrified body and reveal respectively, this anti-misoperation locking drive unit is provided with error-proof device interface, and described error-proof device interface is connected with error-proof device; When being electriferous state more than any mutually in three-phase high-voltage electrified body, described anti-misoperation locking drive unit controls error-proof device and carries out locking, and described error-proof device interface comprises electromagnetic lock interface and computer key interface.
2. a kind of electrification in high voltage anti-misoperation locking drive unit according to claim 1, is characterized in that: described computer key Interface integration has voltage detecting type circuit, current detection type circuit, resistance detection type circuit.
3. a kind of electrification in high voltage anti-misoperation locking drive unit according to claim 2, it is characterized in that: described voltage detecting type circuit comprises resistance R1, resistance R2, voltage table, the HV live displaying output contact of series connection, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and voltage table detects that open-circuit voltage is 0V.
4. a kind of electrification in high voltage anti-misoperation locking drive unit according to claim 2, it is characterized in that: described current detection type circuit comprises resistance R1, resistance R2, reometer, the HV live displaying output contact of series connection, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and reometer detects that short-circuit current is 0A.
5. a kind of electrification in high voltage anti-misoperation locking drive unit according to claim 2, it is characterized in that: described resistance detection type circuit comprises resistance R1, resistance R2, the HV live displaying output contact of series connection, described HV live displaying output contact is parallel with an ohmmeter, time charged more than a phase any in three-phase high-voltage electrified body, HV live displaying output contact is opened, circuit disconnects, and the resistance that ohmmeter detects is for infinitely great.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574731.7U CN204903632U (en) | 2015-08-03 | 2015-08-03 | High voltage live anti -misoperation lockout drive arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574731.7U CN204903632U (en) | 2015-08-03 | 2015-08-03 | High voltage live anti -misoperation lockout drive arrangement |
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| CN204903632U true CN204903632U (en) | 2015-12-23 |
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| CN201520574731.7U Active CN204903632U (en) | 2015-08-03 | 2015-08-03 | High voltage live anti -misoperation lockout drive arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164337A (en) * | 2018-06-22 | 2019-01-08 | 国电南瑞科技股份有限公司 | A kind of anti-error control method of power equipment single-board testing power input |
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2015
- 2015-08-03 CN CN201520574731.7U patent/CN204903632U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164337A (en) * | 2018-06-22 | 2019-01-08 | 国电南瑞科技股份有限公司 | A kind of anti-error control method of power equipment single-board testing power input |
| CN109164337B (en) * | 2018-06-22 | 2020-12-01 | 国电南瑞科技股份有限公司 | Power equipment single board test power input anti-error control method |
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