CN201528224U - High-tension line electrified detecting and locking device - Google Patents

High-tension line electrified detecting and locking device Download PDF

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Publication number
CN201528224U
CN201528224U CN2009202579920U CN200920257992U CN201528224U CN 201528224 U CN201528224 U CN 201528224U CN 2009202579920 U CN2009202579920 U CN 2009202579920U CN 200920257992 U CN200920257992 U CN 200920257992U CN 201528224 U CN201528224 U CN 201528224U
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China
Prior art keywords
circuit
data processor
locking device
signal
connects
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Expired - Fee Related
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CN2009202579920U
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Chinese (zh)
Inventor
王华林
姜兴洲
张洪涛
安庆
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Zhoukou Power Supply Co of State Grid Henan Electric Power Co Ltd
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Zhoukou Power Supply Co of State Grid Henan Electric Power Co Ltd
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Priority to CN2009202579920U priority Critical patent/CN201528224U/en
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Abstract

The utility model discloses a high-tension line electrified detecting and locking device, which comprises a data processor, a sensor signal processing circuit corresponding to each phase line of the high-tension line and a locking control circuit, wherein a signal output end of the sensor signal processing circuit is connected with a detection signal input end of the data processor; a control signal output end of the data processor is connected with a signal input end of the locking control circuit; and a control signal end of the locking output end is used for being connected with the locking device. A sensing signal is sent to the data processor by the sensor signal processing circuit and carries out contrast and judgment with a preset value of the data processor, and then the data processor controls whether the locking control circuit is locked or not; the sensor signal processing circuit also comprises an analog signal unit which can carry out self checking on all circuits when the high-tension line electrified detecting and locking device carries out electricity testing, so that the errors caused by a signal open circuit can be prevented, and by carrying out circulation work of once self checking and once electricity testing, the accuracy of detection and locking control can be further ensured compared with the existing microcomputer locking device.

Description

The charged detection locking device of a kind of high-voltage line
Technical field
The utility model relates to that a kind of (whether charged AC10kV~550kV) carry out non-contact detection judge and export the device of forced blocking signal to high-tension electricity.
Background technology
At present, in the power industry, the ground cutter latch-up problem of 35KV and above transformer station interconnection is individual long-standing for many years always.Machinery " five anti-" lock, microcomputer locking be good head it off all.Thereby charged accident of closing inlet wire side joint ground disconnecting link happens occasionally in the electrical production, and this problem is regarded as one of hidden danger of electric power safety production always, and the misoperation that causes therefrom makes grid power blackout, casualties, brings immeasurable loss to country.For this reason, power department has adopted many ways also thoroughly not address this problem.If can provide a kind of high-voltage line charged detection locking device, be used for to the automatic electrical verification of power transmission and transformation line, and output forced blocking signal, the branch that closes of forcing power transmission and transformation line to close inlet wire side joint ground disconnecting link is operated, so that solve an above-mentioned difficult problem.
The utility model content
The purpose of this utility model provides the charged detection locking device of a kind of high-voltage line.
The charged detection locking device of a kind of high-voltage line, wherein: comprise data processor, the sensor signal processing circuit of each phase circuit of corresponding high-voltage line, locking control circuit, wherein, the signal output part of sensor signal processing circuit connects the detection signal input of data processor, the control signal output ends of data processor connects the signal input part of locking control circuit, and the control signal output ends of locking control circuit is used to connect locking device.
The charged detection locking device of described high-voltage line, wherein: described sensor signal processing circuit comprises parallel conductive plates, protective circuit unit, electronic analog swtich unit, the amplifier circuit unit of two mutually insulateds.Wherein, two parallel conductive plates are arranged in the circuit electric field to be detected; the output of the output circuit of voltage difference connects the signal input part of protective circuit unit between two parallel conductive plates; the output of protective circuit unit connects the corresponding selection input pin of electronic analog swtich in the electronic analog swtich unit; the corresponding output connecting pin of electronic analog swtich connects the signal input part of amplifier circuit unit, and the signal output part of amplifier circuit unit is used to connect the detection signal input of described data processor.
The charged detection locking device of described high-voltage line, wherein: described sensor signal processing circuit also comprises the analog signal unit, the analog signal unit comprises first, second divider resistance, the filter capacitor of series connection successively, the signal input part of first divider resistance is used to connect DC power supply, the signal output part ground connection of filter capacitor, the intermediate contact of first, second divider resistance are used to connect the output of described two parallel conductive plates voltage difference output circuits; Second divider resistance is connected the corresponding selection input pin of described electronic analog swtich with the intermediate contact of filter capacitor, the corresponding output connecting pin of electronic analog swtich connects the signal input part of described amplifier circuit unit, and the signal output part of amplifier circuit unit is used to connect the detection signal input of described data processor; The self check of described data processor/detection selects control signal output ends to connect the gating signal input end of electronic analog swtich.
The charged detection locking device of described high-voltage line, wherein: described locking control circuit comprises rp-drive, high-tension line ground connection disconnecting link control relay, the ground connection disconnecting link signal input end of rp-drive connects the ground connection disconnecting link control signal output ends of data processor, the coil of the described high-tension line ground connection of the ground connection disconnecting link control signal output ends control connection disconnecting link control relay of rp-drive, the normal opened contact of described high-tension line ground connection disconnecting link control relay is used to be connected high-tension line ground connection disconnecting link control circuit.
The charged detection locking device of described high-voltage line, wherein: described locking control circuit also comprises corresponding one by one each phase line of high-tension line, be used to control the relay that shows the whether charged testing result of corresponding phase line, each phase line of described rp-drive detects the corresponding respectively corresponding phase line that connects described data processor of shows signal input and detects the shows signal output, each phase line of described rp-drive detects the shows signal output coil of corresponding each relay of control connection respectively, the corresponding respectively whether charged display unit of corresponding phase line that connects of the normal opened contact of above-mentioned each relay.
The charged detection locking device of described high-voltage line, wherein: the charged detection locking device of this high-voltage line also comprises temperature sensing circuit, automatic defrosting circuit, comprise temperature sensor in the temperature sensing circuit, the temperature-sensing probe of temperature sensor is used to be arranged at the high-tension line place; The signal output part of temperature sensing circuit connects the temperature signal input of data processor, the heating control signal output ends of data processor is connected in the signal input part of automatic defrosting circuit, and the automatic defrosting circuit is used to be arranged at the charged detection locking device of described high-voltage line circuit board place.
The charged detection locking device of described high-voltage line, wherein: described automatic defrosting circuit comprises a power switch pipe, heating resistance wire, divider resistance, power switch pipe and heating resistance wire are serially connected between power supply and the ground, and the control end of power switch pipe is used to connect described power supply by divider resistance; The automatic defrosting signal input end of described rp-drive connects the heating control signal output ends of data processor, and the automatic defrosting control signal output ends of described rp-drive is connected with the intermediate contact of divider resistance with the control end of described power switch pipe.
The charged detection locking device of described high-voltage line, wherein: the charged detection locking device of this high-voltage line also comprises alarm unit, and the signal input part of this alarm unit connects the alarm signal output ends of described data processor.
The charged detection locking device of described high-voltage line, wherein: the charged detection locking device of this high-voltage line also comprises the panel control circuit, the signal output part of panel control circuit connects the setting signal input of data processor.
The charged detection locking device of described high-voltage line, wherein: the charged detection locking device of this high-voltage line also comprises communication module, and an end of this communication module connects the PORT COM of described data processor, and the other end of this communication module is used to connect host computer.
The utility model adopts technique scheme will reach following technique effect:
The charged detection locking device of high-voltage line of the present utility model, by sensor signal processing circuit the electric field signal around the high-voltage line being converted to voltage signal also delivers in the data processor after the processing, after judging with pre-set threshold contrast in the data processor, the whether locking of the described locking control circuit of data processor controlled; Described sensor signal processing circuit also comprises the analog signal unit, this unit is a standard sine wave with the sine pulse conversion of signals that data processor produces, after dividing potential drop, filtering, obtain an analog signal that is similar to sensor output signal, this signal is sent into sensor signal processing circuit, send into data processor processes again, thus, can carry out self check to all circuit of the charged detection locking device of high-voltage line.Prevent this device output error signal, this device adopt self check once, electrical verification working method once, when self check, adopt the two states self check, signal (the analog signal unit is charged) self check and no signal (the analog signal unit is not charged) self check are promptly arranged, if the analog signal that produces when the signal self check is arranged can correctly be detected by this device, so, real line signal can be detected certainly, because the amplitude of analog signal is less than true line signal, like this, can guarantee circuit is not had electricity to test to circuit is not had; Equally, if the analog signal unit does not have the signal of telecommunication and can correctly be detected by this device during the no signal self check, so when circuit does not have electricity, this device also can detect, (certainly, when this device switches to the electrical verification operating state, even high-voltage line is not charged, transducer also can be exported some interference signals, but can not have a kind of interference just in time can make three-phase sensor output signal phase difference is that equality circuit imposes a condition, and in view of the above, can remove interference effect), so this device can guarantee circuit not to be had electricity and test to circuit and have; To sum up, the charged detection locking device of high-voltage line of the present utility model further guarantees to detect and control the accuracy of locking than existing microcomputer locking device; In addition, locking control circuit in this device not only comprises high-tension line ground connection disconnecting link control relay, also comprise relay corresponding one by one each phase line of high-tension line, that be used to control the whether charged testing result of the corresponding phase line of demonstration, break-make situation corresponding one by one each phase line of high-tension line, that be used to control tested each phase line of high-tension line of the remote controlled demonstration of these relays that shows the whether charged testing result of corresponding phase line, the control of convenient long-range OPS.
Description of drawings
Fig. 1 is the structured flowchart of the charged detection locking device of high-voltage line of the present utility model;
The circuit integral body that Fig. 2 ~ Fig. 4 formed is the circuit theory diagrams of the charged detection locking device of high-voltage line of the present utility model.
Embodiment
The charged detection locking device of a kind of high-voltage line, structure chart as shown in Figure 1, wherein: comprise data processor, the sensor signal processing circuit of each phase circuit of corresponding high-voltage line, locking control circuit, temperature sensing circuit, panel control circuit, automatic defrosting circuit, communication module, alarm module, power module, wherein, power module is used to sensor signal processing circuit, locking control circuit, temperature sensing circuit, panel control circuit, automatic defrosting circuit, communication module, alarm module that power supply is provided; The signal output part of sensor signal processing circuit connects the detection signal input of data processor; Comprise temperature sensor in the temperature sensing circuit, the temperature-sensing probe of temperature sensor is used to be arranged at the high-tension line place, and the signal output part of temperature sensing circuit connects the temperature signal input of data processor; The control signal output ends of data processor connects the signal input part of locking control circuit, and the control signal output ends of locking control circuit is used to connect ground connection disconnecting link equal controller; The heating control signal output ends of data processor is connected in the signal input part of automatic defrosting circuit, and the automatic defrosting circuit is used to be arranged at the charged detection locking device of present embodiment high-voltage line circuit board place; One end of this communication module connects the PORT COM of described data processor, and the other end of this communication module is used to connect host computer.
The circuit integral body that Fig. 2 ~ Fig. 4 formed is the circuit theory diagrams of the charged detection locking device of high-voltage line of the present utility model.
Described data processor and peripheral circuit thereof, as Fig. 4, described data processor U501 adopts the Atmega16 of Atmel company, and key property is as follows: the high-performance of risc architecture, the 8-bit microprocessor of low-power consumption have the In-System Programmable Flash of 16K byte, the EEPROM of 512 bytes, the on-chip SRAM of 1K byte, 8 tunnel 10 ADC, four-way PWM, multiple functional, easy to use; The peripheral circuit of data processor U501 is mainly by resistance R 501, diode D501, and capacitor C 501, C504, C505, C506, C507, C508, crystal oscillator Y501, choke induction L501 forms.Resistance R 501, capacitor C 501 are connected as the electrify restoration circuit of data processor U501; The external crystal clock circuit of capacitor C 504, C505 and crystal oscillator Y501 composition data processor U501, data processor U501 internal clock circuit stability is better than using.The series circuit of diode D501, choke induction L501 is connected 32 pin of data processor U501 with the serial connection contact of the filter circuit of capacitor C 506, C507, C508 formation, U501 provides analog conversion circuit for data processor.Button S501, S502, S503 all have an end ground connection among Fig. 4, and the other end connects 8,7,6 pin of data processor U501 respectively, are used to realize that manual calibration, alarm sound solve, force functions such as self check, startup voice suggestion.
Described sensor signal processing circuit; as Fig. 2; copper coin electric capacity (the A in the present embodiment that transducer constitutes for the parallel copper coin by two mutually insulateds; B; every phase circuit correspondence in the C three-phase line is equiped with a copper coin electric capacity; copper coin electric capacity does not show in the drawings); the protective circuit unit; the electronic analog swtich unit; the amplifier circuit unit; wherein; copper coin electric capacity is arranged in the electric field of circuit to be detected; the output of the output circuit of voltage difference is by the corresponding signal input part that connects corresponding phase line protective circuit unit of connector IN between the two parallel copper coins of copper coin electric capacity; the output of protective circuit unit connects the corresponding selection input pin of electronic analog swtich U102 in the electronic analog swtich unit; the corresponding output connecting pin of electronic analog swtich U102 connects the signal input part of amplifier circuit unit, and the signal output part of amplifier circuit unit is used to connect the detection signal input of described data processor.
A, B, C three-phase line copper coin electric capacity protective circuit unit one to one include TVS pipe (adopting P6KE6.8); TVS manages the corresponding output connecting pin that an end ground connection, the other end are used to connect connector IN; be used to absorb the surge voltage of secondary thunder and lightning and other interference generation, protect the circuit of the charged detection locking device of this high-voltage line.The corresponding output connecting pin INA of connector IN, INB, INC are connected to 14,15,11 pin of electronic analog swtich U102 more respectively through corresponding TVS pipe; Electronic analog swtich U102 selects one multiway analog switch for two four, 12,14,15,11 pin of electronic analog swtich U102 are that pin is selected in first group of input, be used for the received signal signal of sensor, so that electrical verification, 1,5,2,4 of electronic analog swtich U102 is that pin is selected in second group of input, be used to receive each phase analog signal, so that self check; The pin 13 of electronic analog swtich U102 is the output connecting pin that pin is selected in corresponding first group of input, connects the input of amplifier circuit; The pin 3 of electronic analog swtich U102 is the output connecting pin that pin is selected in corresponding second group of input, connects 39 pin of data processor U501, is used for the usefulness of data processor U501 self check judgement; 10,9 pin of electronic analog swtich U102 connect 33,34 pin of data processor U501 respectively, data processor U501 by the corresponding input among first group or second group of the 34 foot control system electronic analog swtich U102 33, select pin according to the order of A, B, C phase successively with corresponding output connecting pin connection, to data processor U501 output signal; The pwm signal output of data processor U501 is used for this self-check of device by 12 pin that the filter circuit that is made of resistance R 119, capacitor C 118, C117 in the pwm signal amplifying circuit, divider resistance R118, amplifier U103D connect electronic analog swtich U102; 6 pin of data processor U501 are by connecting 1 pin of electronic analog swtich U102 again by the intermediate contact of divider resistance R611, R612 after 11 pin of rp-drive U601, be used for the self check of locking control circuit, to guarantee when circuit has electricity, this device output locking is bound to export block signal, prevents the charged ground cutter that closes.
The amplifier circuit unit of sensor signal processing circuit comprises operational amplifier U103C, the U103D that two-stage connects successively, the input of operational amplifier U103C is by first group of output connecting pin 13 pin of filter capacitor C107, C108, C109, C110 connection electronic analog swtich, and the output of operational amplifier U103D connects 40 pin of data processor U501.
Sensor signal processing circuit also comprises the analog signal unit of corresponding each phase line copper coin electric capacity one by one, each analog signal cellular construction is identical, analog signal unit with corresponding A phase copper coin electric capacity is an example, it comprises first, the second divider resistance R100A, R104, filter capacitor C103, the signal input part of the first divider resistance R100A is used to connect the VDD DC power supply of power module output, the signal output part ground connection of filter capacitor C103, first, the second divider resistance R100A, the intermediate contact of R104 is used to connect corresponding output connecting pin 1 pin of connector IN, and the second divider resistance R104 and the intermediate contact of filter capacitor C103 connect the pin 5 of described electronic analog swtich U102 (B mutually, the corresponding respectively pin 2 that connects electronic analog swtich U102 of the output of C phase analog signal unit, 4).
Output 2 pin of temperature sensor U101 among Fig. 2 connect 38 pin of data processor U501, are used for transmitting temperature sensing signal to data processor U501.
Described locking control circuit comprises rp-drive U601, high-tension line ground connection disconnecting link control relay K604, K605, and corresponding high-tension line A, B, the C three-phase line, be used for controlling respectively demonstration A, B, the relay K 601 of the whether charged testing result of C three-phase line (A phase), K602 (B phase), K603 (C phase), ground connection disconnecting link signal input end 6 pin of rp-drive U601 connect ground connection disconnecting link control signal output ends 17 pin of data processor U501, the ground connection disconnecting link control signal output ends 11 foot control systems of rp-drive U601 connect described high-tension line ground connection disconnecting link control relay K604, the coil of K605, described high-tension line ground connection disconnecting link control relay K604, the normal opened contact of K605 is used to be connected high-tension line ground connection disconnecting link control circuit, and (in fact described high-tension line ground connection disconnecting link control relay only needs one to get final product, be provided with two in the present embodiment, another can be used for demonstration etc., and is standby); Each phase line of described rp-drive U601 detects shows signal input 02,03,04 corresponding phase line detection shows signal output 2,3,4 pin of the corresponding described data processor U501 of connection respectively, each phase line of described rp-drive U601 detects shows signal output 15,14, the 13 pin coil of corresponding control connection relay K 601, K602, K603 respectively, corresponding respectively A, B, the whether charged display unit of C phase circuit (not showing in this installation drawing) of connecting of the normal opened contact of above-mentioned relay K 601, K602, K603.In addition, the voice alarm circuit that alarm unit comprises buzzer L601, is made up of speech chip U504 and loudspeaker Y 602 and peripheral cell, wherein, the buzzer L601 one termination power other end connects buzzer warning signal output part 16 pin of rp-drive U601, and buzzer warning signal input part 1 pin of rp-drive U601 connects buzzer warning signal output part 1 pin of described data processor U501; In the voice alarm circuit, corresponding respectively 22,23,24 pin that connect data processor U501 of signal input part 1,2,3 pin of speech chip U504, voice driven signal output part 7 pin of speech chip U504 connect the first input end of loudspeaker Y 602, and control signal output ends 5 pin of speech chip U504 connect second input of loudspeaker Y 602 by amplifying triode Q601.
Described communication module comprises a RS485 communication chip U502, a communication terminal 1,2 pin of this communication chip U502 connect 14,15 pin of data processor U501 respectively, and another communication terminal 7,6,5 pin of this communication chip U502 are used to connect host computer by RS485 plug-in unit J502, UART plug-in unit.
The charged detection locking device of this high-voltage line also comprises temperature sensing circuit, automatic defrosting circuit, comprise temperature sensor U101 in the temperature sensing circuit, the temperature-sensing probe of temperature sensor U101 is used to be arranged at the high-tension line place, corresponding respectively 38 pin, 37 pin that connect data processor U501 of input 3 pin of temperature sensor U101, output 2 pin; Heating control signal output ends 21 pin of data processor are by 7 pin of rp-drive U601, output connecting pin 10 pin of rp-drive U601 pin 7 pin correspondences connect the grid of the power tube Q604 in the automatic defrosting circuit, power tube Q604 gate pole connects power supply, drain electrode connects the heating resistance wire R609 of four parallel connections, R608, R607, R606, sense current environmental temperature when being lower than design temperature (being set at 5 degrees centigrade in the present embodiment) by temperature sensing circuit, 2 pin of temperature sensor U101 are to control signal of 37 pin output of data processor U501, then, data processor U501 handles power tube Q604 conducting in the rear drive automatic defrosting circuit, thereby control heating resistance wire R609, R608, R607, R606 heating is heated defrosting to the circuit board of the charged detection locking device of whole high-voltage line.
After the charged detection locking device of this high-voltage line powers on, be to investigate the evidence of a case the electrical work mode to work, that is, self check once, a periodic duty of electrical verification.
The self check course of work is as follows:
Electric self check is arranged: the sensor signal processing circuit self check, 19 pin output sine pulse (SPWM) signal of data processor U501, through resistance R 119, become sine wave after capacitor C 118 filtering, after amplifier U103D decay, export the signal consistent with the copper coin capacitance sensor by 14 pin of amplifier U103D, send into the 12nd pin of electronic analog swtich U102, the 13rd pin through electronic analog swtich U102 is delivered to two-stage calculation amplifier U103C, after U103B amplifies, send into 40 pin of data processor U501, the signal effective value that data processor U501 obtains its 40 pin and the electrical verification upper limit of inner setting, lower limit set value relatively, if in setting range, then sensor signal processing circuit can normally detect when electricity is arranged.Through this self check, can illustrate that if tested high-tension line is charged, the charged detection locking device of this high-voltage line can be with its flase drop for not having.
Do not have electric self check: the process of sensor signal processing circuit self check with have electric self check identical, different places are, the 19 pin output zero level signal of data processor U501, after the self check process, the signal effective value that data processor U501 obtains its 40 pin is tested set point relatively with inner no electric-examination, if test set point then sensor signal processing circuit can correctly not detect less than no electric-examination when nothing is electric; Through this self check, can illustrate that if tested high-tension line is not charged, the charged detection locking device of this high-voltage line can be with its flase drop for not having.
The self check of copper coin capacitance sensor: the copper coin capacitance sensor is the parallel copper coin of two mutually insulateds, unique fault that can occur is two copper coin short circuits or open circuit in testing process, be exactly detection below: 33 pin of data processor U501 to copper coin electric capacity fault, 34 pin output signals control electronic analog swtich U102, make electronic analog swtich U102 will deliver to its 5 pin, 2 pin, the A of 4 pin, B, the direct current signal of C three-phase copper coin capacitance sensor is connected 3 pin of electronic analog swtich U102 in turn, send into 39 pin of data processor U501 then, the signal that data processor U501 obtains 39 pin and the copper coin capacitance sensor self check upper limit of its inner setting, lower limit set value relatively, if less than lower limit, corresponding copper coin capacitance sensor short circuit is described, if the signal that 39 pin of data processor U501 obtain is between copper coin capacitance sensor self check bound set point, illustrate that the copper coin capacitance sensor is normal, if greater than copper coin capacitance sensor self check upper limit set value, corresponding copper coin capacitance sensor open circuit is described.
Locking control circuit self check: the 17 pin output high level of data processor U501, send into 6 pin of rp-drive U601,11 pin output low levels of rp-drive U601 correspondence, (through resistance R 611, R612 intermediate contact Ti) sends into 1 pin of electronic analog swtich U102 after resistance R 611, R612 level conversion, export from 3 pin of electronic analog swtich U102 then, send back to 39 pin of data processor U501, data processor U501 judges its 39 pin signal, if be high level, then be judged as locking control circuit fault, implement to report to the police; If the signal that 39 pin of data processor U501 are received is a low level, illustrate that high-tension line breaks down, the 17 pin output low levels of data processor U501 then, the high-tension line ground connection disconnecting link control relay K604, the K605 that drive in the locking control circuit disconnect normal opened contact, the ground connection disconnecting link disconnects, and the high-tension line locking disconnects, simultaneously, relay K 601, K602, K603 are driven by data processor U501 and connect, and be long-range to the transmission high-tension line A of OPS, B, C phase fault display drive signals.If above-mentioned when being judged as locking control circuit fault, 1 pin, 22,23 of data processor U501,24 pin drive and control signal buzzer, voice alarm circuit output respectively, drive, control buzzer, voice alarm circuit implement to report to the police.
Electrical verification work is as follows:
Whether charged: A if detecting high-tension line, B, C three-phase copper coin capacitance sensor is installed in high-voltage line A, B, near the C phase line, if corresponding phase line is charged, will inevitably produce earth electric field, corresponding copper coin capacitance sensor is in the electric field, can be at voltage signal that is proportional to electric field of the two ends of copper coin capacitance sensor output, this voltage signal send 1 of socket IN, 2,3,4 pin, through TVS pipe D101, D102, after the lightning protection circuit that D103 forms, respectively with A, B, the copper coin capacitance sensor signal of C three-phase is sent into 14 of electronic analog swtich U102,15,11 pin, data processor U501 control electronic analog swtich U102 makes three road signal timesharing export from 13 pin, through capacitor C 107, C108, send into amplifying circuit after the C109 filtering, from amplifying circuit dual-stage amplifier U103C, the signal that U103B comes out is sent into 40 pin of microprocessor U501, microprocessor U501 timesharing control electronic analog swtich U102 just can obtain A, B, the signal of C three-phase, again to the phase place of three-phase signal, effective value carries out comparing with the inner setting value, judge whether respective lines has, if have, data processor U501 drives indicator light D603, D604, the D605 flicker, relay K 601, relay K 602, relay K 603 actions; If judging respective lines does not have, data processor U501 control indicator light D601 extinguishes, relay K 605 is failure to actuate, relay K 605 normal opened contacts disconnect, the ground connection disconnecting link of locking high-tension line, guarantee that ground connection is sent out the impossible closure of lock when high-tension line is charged, guarantee splice grafting ground cutter by mistake technically.A indicates the 2 pin output of output signal by data processor U501 mutually, through rp-drive U601 driven for emitting lights diode D605 and relay K 601; B indicates the 3 pin output of output signal by data processor U501 mutually, through rp-drive U601 driven for emitting lights diode D604 and relay K 602; C indicates the 4 pin output of output signal by data processor U501 mutually, through rp-drive U601 driven for emitting lights diode D603 and relay K 603; Operation indication output signal is by the 21 pin output of data processor U501, through rp-drive U601 driven for emitting lights diode D605 and relay K 604, K605.The 1 pin output signal of data processor U501 is reported to the police when the negative circuit between 1,16 pin of rp-drive U601 drives buzzer L601 in fault or phase shortage.22 ~ 24 pin output signals of data processor U501 are sent into speech chip U503, output voice suggestion sound.
Voltage signal that is directly proportional with ambient temperature of 2 pin output of temperature sensor U101, this signal send 38 pin of little processing U501, and microprocessor U501 is to the temperature signal collection of 38 pin.If ambient temperature is lower than 5 ℃, the 21 pin output pwm signals control triode Q604 conducting of data processor U501, drive heating resistance wire R609 ~ R606 to the heating of the charged detection locking device of this high-voltage line circuit board, in case circuit board dewfall, frosting influence work.

Claims (10)

1. charged detection locking device of high-voltage line, it is characterized in that: comprise data processor, the sensor signal processing circuit of each phase circuit of corresponding high-voltage line, locking control circuit, wherein, the signal output part of sensor signal processing circuit connects the detection signal input of data processor, the control signal output ends of data processor connects the signal input part of locking control circuit, and the control signal output ends of locking control circuit is used to connect locking device.
2. the charged detection locking device of high-voltage line as claimed in claim 1; it is characterized in that: described sensor signal processing circuit comprises the parallel conductive plates of two mutually insulateds; the protective circuit unit; the electronic analog swtich unit; the amplifier circuit unit; wherein; two parallel conductive plates are arranged in the circuit electric field to be detected; the output of the output circuit of voltage difference connects the signal input part of protective circuit unit between two parallel conductive plates; the output of protective circuit unit connects the corresponding selection input pin of electronic analog swtich in the electronic analog swtich unit; the corresponding output connecting pin of electronic analog swtich connects the signal input part of amplifier circuit unit, and the signal output part of amplifier circuit unit is used to connect the detection signal input of described data processor.
3. the charged detection locking device of high-voltage line as claimed in claim 2, it is characterized in that: described sensor signal processing circuit also comprises the analog signal unit, the analog signal unit comprises first, second divider resistance, the filter capacitor of series connection successively, the signal input part of first divider resistance is used to connect DC power supply, the signal output part ground connection of filter capacitor, the intermediate contact of first, second divider resistance are used to connect the output of described two parallel conductive plates voltage difference output circuits; Second divider resistance is connected the corresponding selection input pin of described electronic analog swtich with the intermediate contact of filter capacitor, the corresponding output connecting pin of electronic analog swtich connects the signal input part of described amplifier circuit unit, and the signal output part of amplifier circuit unit is used to connect the detection signal input of described data processor; The self check of described data processor/detection selects control signal output ends to connect the gating signal input end of electronic analog swtich.
4. as claim 1 or the charged detection locking device of 2 or 3 described high-voltage lines, it is characterized in that: described locking control circuit comprises rp-drive, high-tension line ground connection disconnecting link control relay, the ground connection disconnecting link signal input end of rp-drive connects the ground connection disconnecting link control signal output ends of data processor, the coil of the described high-tension line ground connection of the ground connection disconnecting link control signal output ends control connection disconnecting link control relay of rp-drive, the normal opened contact of described high-tension line ground connection disconnecting link control relay is used to be connected high-tension line ground connection disconnecting link control circuit.
5. the charged detection locking device of high-voltage line as claimed in claim 4, it is characterized in that: described locking control circuit also comprises corresponding one by one each phase line of high-tension line, be used to control the relay that shows the whether charged testing result of corresponding phase line, each phase line of described rp-drive detects the corresponding respectively corresponding phase line that connects described data processor of shows signal input and detects the shows signal output, each phase line of described rp-drive detects the shows signal output coil of corresponding each relay of control connection respectively, the corresponding respectively whether charged display unit of corresponding phase line that connects of the normal opened contact of above-mentioned each relay.
6. the charged detection locking device of high-voltage line as claimed in claim 4, it is characterized in that: the charged detection locking device of this high-voltage line also comprises temperature sensing circuit, automatic defrosting circuit, comprise temperature sensor in the temperature sensing circuit, the temperature-sensing probe of temperature sensor is used to be arranged at the high-tension line place; The signal output part of temperature sensing circuit connects the temperature signal input of data processor, the heating control signal output ends of data processor is connected in the signal input part of automatic defrosting circuit, and the automatic defrosting circuit is used to be arranged at the charged detection locking device of described high-voltage line circuit board place.
7. the charged detection locking device of high-voltage line as claimed in claim 6, it is characterized in that: described automatic defrosting circuit comprises a power switch pipe, heating resistance wire, divider resistance, power switch pipe and heating resistance wire are serially connected between power supply and the ground, and the control end of power switch pipe is used to connect described power supply by divider resistance; The automatic defrosting signal input end of described rp-drive connects the heating control signal output ends of data processor, and the automatic defrosting control signal output ends of described rp-drive is connected with the intermediate contact of divider resistance with the control end of described power switch pipe.
8. as claim 1 or the charged detection locking device of 2 or 3 described high-voltage lines, it is characterized in that: the charged detection locking device of this high-voltage line also comprises alarm unit, and the signal input part of this alarm unit connects the alarm signal output ends of described data processor.
9. as claim 1 or the charged detection locking device of 2 or 3 described high-voltage lines, it is characterized in that: the charged detection locking device of this high-voltage line also comprises the panel control circuit, and the signal output part of panel control circuit connects the setting signal input of data processor.
10. as claim 1 or the charged detection locking device of 2 or 3 described high-voltage lines, it is characterized in that: the charged detection locking device of this high-voltage line also comprises communication module, one end of this communication module connects the PORT COM of described data processor, and the other end of this communication module is used to connect host computer.
CN2009202579920U 2009-11-10 2009-11-10 High-tension line electrified detecting and locking device Expired - Fee Related CN201528224U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103207342A (en) * 2013-01-10 2013-07-17 嘉兴电力局 Ground intelligent pre-warning device for overhauling test
CN104569561A (en) * 2014-12-20 2015-04-29 国家电网公司 Insulation glove with high voltage warning function
CN104574809A (en) * 2014-12-20 2015-04-29 国家电网公司 Bracelet type high voltage detector
CN110726966A (en) * 2019-12-03 2020-01-24 积成电子股份有限公司 Device and method for monitoring existence and nonexistence of non-contact electric energy meter
CN110887869A (en) * 2019-11-29 2020-03-17 苏业梅 KYN type high-voltage board dew point detection circuitry
CN111371015A (en) * 2020-04-14 2020-07-03 广州海睿信息科技有限公司 Intelligent electric control cabinet

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103207342A (en) * 2013-01-10 2013-07-17 嘉兴电力局 Ground intelligent pre-warning device for overhauling test
CN103207342B (en) * 2013-01-10 2016-09-07 嘉兴电力局 A kind of checking experiment grounding intelligent prior-warning device
CN104569561A (en) * 2014-12-20 2015-04-29 国家电网公司 Insulation glove with high voltage warning function
CN104574809A (en) * 2014-12-20 2015-04-29 国家电网公司 Bracelet type high voltage detector
CN110887869A (en) * 2019-11-29 2020-03-17 苏业梅 KYN type high-voltage board dew point detection circuitry
CN110726966A (en) * 2019-12-03 2020-01-24 积成电子股份有限公司 Device and method for monitoring existence and nonexistence of non-contact electric energy meter
CN110726966B (en) * 2019-12-03 2022-05-31 积成电子股份有限公司 Device and method for monitoring whether non-contact electric energy meter has electricity or not
CN111371015A (en) * 2020-04-14 2020-07-03 广州海睿信息科技有限公司 Intelligent electric control cabinet

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