CN106848921A - A kind of livewire work method of ultra-high-tension power transmission line - Google Patents

Abstract

The invention discloses a live working method for a high-voltage transmission line. Operators judge whether the power line or equipment has electricity through a new type of multifunctional electroscope with communication functions, and at the same time detect through a digital voltmeter, a humidity detection module and a temperature detection module The actual voltage value of the power line or equipment, as well as the temperature value and humidity value of the job site, and the detected voltage value, temperature and humidity information are sent to the dispatching command center through the wireless communication module. The invention utilizes a novel multifunctional electroscope with a communication function to send on-site operation information to the dispatching command center in time, provides a practical basis for the dispatching command center to arrange subsequent operations, improves the safety and reliability of the on-site operation, and thus ensures that the operation personal safety of personnel.

Description

A live working method for high-voltage transmission lines

Technical field:

The invention relates to the technical field of power grid operation, and more specifically relates to a live working method.

Background technique:

Transmission line operation, maintenance and repair work is an important means to grasp the operation of the power grid, discover and deal with equipment defects in time, and is also the basic work to ensure the safe and stable operation of the line. Since the high-voltage power grid plays an important role in the operation of the entire national power grid, the operation and maintenance of high-voltage transmission lines is of great significance to ensure the safe, stable and reliable operation of the power grid. The live working method of high-voltage transmission lines in the prior art usually cannot transmit the working voltage detected on site, the temperature and humidity data of the surrounding environment to the dispatching command center in real time, and cannot provide decision-making basis for the operation arrangement of the dispatching command center, which is safe and reliable. not tall. Therefore, improvements are made aiming at the problems existing in the prior art.

Invention content:

The purpose of the present invention is to address the deficiencies in the prior art, and provide a live working method for high-voltage transmission lines, which can provide a practical basis for the dispatching command center to arrange subsequent operations, and improve the safety and reliability of on-site operations, thereby The personal safety of the operating personnel is guaranteed.

The technical solutions of the present invention are as follows: a live working method for high-voltage transmission lines, comprising the following steps:

(a) Carry out preliminary preparations for entering the field operation;

(b) Check whether the appearance of the relevant operating tools is damaged, use an insulation detector to check the insulation equipment, and confirm that the temperature is below 30°C and the altitude is below 2500m and the insulation resistance value is not less than 725MΩ, or the temperature is below 30°C and the altitude is 2500m to 3000m In between, its insulation resistance value is not less than 775MΩ, otherwise it will be replaced;

(c) The operator wears insulating equipment and carries a new multifunctional electroscope with communication function into the work vehicle;

(d) The operator operates the work vehicle to an appropriate position, uses a new multifunctional electroscope with communication function to conduct an electric test on the charged body and the grounding component, and passes the detected line voltage value, temperature value and humidity value of the working environment through The GPRS network is transmitted to the dispatching command center, and the control unit of the dispatching command center calculates the received data, and then sends the instruction to approve the operation to the hand-held electronic terminal of the operation supervisor, and the operation supervisor receives the instruction from the dispatching command center. allow operators to carry out their work;

(e) The operators in the work vehicle insulate and shield the conductors, insulators and cross arms in turn, and then replace the middle phase insulator;

(f) Fix the clamp at the front end of the tensioning rod support bottle holder on the line clamp, then clamp the clamp at the rear end on the side right-angle hanging plate of the cross arm, and set the safety pins of the clamps at the front and rear ends sealed;

(g) The operator tightens the screw, checks the stress on the front and rear ends of the fixture and the stroke of the screw, and reports to the operation supervisor after confirming the operation situation. The operation supervisor transmits the operation situation to the dispatching command center through a handheld electronic device; The operator then continues to tighten the screw rod to transfer the load of the insulator string to the tie rod, so that the insulator string relaxes and falls on the insulating bottle holder;

(h) The operator checks the force-bearing parts such as the front and rear end fixtures, insulating bottle holders, tightening rods, screw rods, etc., and reports to the operation supervisor after confirming that there is no problem. Send it to the dispatching command center. After being approved by the dispatching command center, the operation supervisor informs the operator to untie the insulation isolation at the front end of the insulator string, take out the locking pin, and separate the insulator string from the clamp bowl;

(i) The operator removes the side hanging point of the cross-arm of the insulator string, removes the insulation blanket on the insulator string, binds it well and removes the cross-arm connection of the insulator string, puts down the old insulator string, and installs the new insulator string;

(j) Restore the connection with the cross arm and the clamp, loosen the clamp screw to force the insulator string, impact and check the connection of each part, and report to the operation supervisor after confirming that there is no problem. The inspection status of the personnel is sent to the dispatching command center. After approval, the operation supervisor notifies the operator to remove and replace the tools. After the replacement of the three-phase insulator is completed, remove the insulating pole;

(k) The staff in the work vehicle removes the insulation and shielding in sequence, the work vehicle exits the work area and sends the workers in the work vehicle back to the ground;

(l) The operation supervisor checks and accepts the completed work, and transmits the inspection result to the dispatching command center through the handheld electronic device. After the dispatching command center confirms, the work is over.

As a preference of the above technical solution, the novel multifunctional electroscope with communication function in the step (c) and the step (d) includes a detection part, the lower end of the detection part is connected with a high-voltage arm tube, and the The lower end of the high-voltage arm tube is connected with a protective arm tube, and a handle is arranged below the protective arm tube, and the handle is connected with the protective arm tube through a protective ring. A display and a communication module are arranged on the handle, and the high-voltage arm tube A high-voltage resistor and a low-voltage resistor are respectively arranged in the protective arm tube, one end of the high-voltage resistor is connected to the detection part, and the other end is connected to the low-voltage resistor and the display, the low-voltage resistor and the display are connected in parallel, and one end of the low-voltage resistor and the display is connected to the high-voltage The resistance is connected, and the other end is grounded. The input end of the display is connected with a resistance R1 and a resistance R2 in series. The output end of the resistance R2 is connected with a resistance R3. The output ends of the resistance R3 are respectively connected with a digital voltmeter. and a comparator, a humidity detection module and a temperature detection module are connected in parallel between the input end and the output end of the digital voltmeter, and a communication module is connected in series at the output end of the digital voltmeter, and an amplifier is connected in series at the output end of the comparator, and the amplifier The output terminals of the resistors are respectively connected to a buzzer and a resistor R4, and the output terminals of the resistor R4 are also connected in series with a light-emitting diode D1, and the positive and negative poles of the power supply are respectively connected to a double-pole switch K, and the output terminals of the double-pole switch K A filter capacitor and resistors R5 and R6 are connected in series to form a voltage divider circuit and connected to each unit circuit.

As a preference of the above technical solution, the digital voltmeter, the humidity detection module and the temperature detection module are electrically connected to the communication module.

As a preference of the above technical solution, the communication module transmits information with the dispatching command center through a wireless network.

As an optimization of the above-mentioned technical solution, the preliminary preparation work in the step (a) includes: the operation supervisor confirms the work place and equipment according to the content of the electronic work ticket, applies for deactivation of the reclosing of the associated line after the confirmation is completed, and explains the work The task is to inform the operators of danger points.

As a preference of the above technical solution, the insulating appliances in the step (b) or step (c) include appliances such as insulating clothing, insulating blankets and insulating shields.

As a preference of the above technical solution, in the step (e), insulate and shield the wires, insulators and crossarms in the order of first the electrified body and then the grounded body, from near to far, from bottom to top, and from large to small.

As a preference of the above technical solution, in the step (k), remove the insulation shielding of the wires, insulators and cross arms in the order of first grounding body and then charging body, from far to near, and from top to bottom.

As an optimization of the above technical solution, after the new insulator strings are installed in the step (i), the insulation, isolation and shielding measures are resumed.

The beneficial effect of the present invention is that: the present invention uses the novel multi-functional electroscope with communication function to send the on-site operation information to the dispatching command center in time, provides a practical basis for the dispatching command center to arrange subsequent operations, and improves the safety and reliability of the on-site operation. Reliability, thus ensuring the personal safety of operators.

During operation, the operator judges whether the power line or equipment has electricity through the new multi-functional electroscope with communication function, and at the same time uses the digital voltmeter, humidity detection module and temperature detection module to detect the actual voltage value of the power line or equipment and the operating site. The temperature value and humidity value, and the detected voltage value and temperature and humidity information are sent to the dispatch command center through the wireless communication module; the display can display the information detected by the digital voltmeter, humidity detection module and temperature detection module , It can also send warnings and alarms to the operators through the buzzer and the light-emitting diode D1, which greatly improves the personal safety of the operators.

Description of drawings:

Fig. 1 is the structural representation of the novel multifunctional electroscope with communication function of the present invention;

Fig. 2 is the schematic circuit diagram of the novel multifunctional electroscope with communication function of the present invention.

In the figure, 10, high voltage arm tube; 11, high voltage resistor; 12, protective arm tube; 13, low voltage resistor; 14, detection part; 15, guard ring; 16, handle; 20, display; 21, humidity detection module; , temperature detection module; 23, digital voltmeter; 30, communication module; 40, comparator; 50, amplifier; 60, buzzer; 70, power supply; 80, filter capacitor.

detailed description:

Examples: The following specific examples illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

A live working method for a high-voltage transmission line, comprising the following steps:

(a) Carry out preliminary preparations for on-site operations, wherein the preliminary preparations include: the operation supervisor confirms the work site and equipment according to the content of the electronic work ticket, applies for deactivation of the associated line reclosing after confirmation, and explains Work tasks, inform operators of dangerous points.

(b) Check whether the appearance of the relevant operating tools is damaged, use an insulation detector to check the insulation equipment, and confirm that the temperature is below 30°C and the altitude is below 2500m and the insulation resistance value is not less than 725MΩ, or the temperature is below 30°C and the altitude is 2500m to 3000m In between, its insulation resistance value is not lower than 775MΩ, otherwise it needs to be replaced. The insulation appliances include insulation clothing, insulation blankets, insulation shields and other appliances.

(c) The operator wears insulating appliances and enters the work vehicle with a new multi-functional electroscope with communication functions. The insulating appliances include insulating clothing, insulating blankets, insulating shields and other appliances.

(d) The operator operates the work vehicle to an appropriate position, uses a new multifunctional electroscope with communication function to conduct an electric test on the charged body and the grounding component, and passes the detected line voltage value, temperature value and humidity value of the working environment through The GPRS network is transmitted to the dispatching command center, and the control unit of the dispatching command center calculates the received data, and then sends the instruction to approve the operation to the hand-held electronic terminal of the operation supervisor, and the operation supervisor receives the instruction from the dispatching command center. Allow workers to work. As shown in Fig. 1 and Fig. 2, the novel multifunctional electroscope with communication function includes a detection part 14, the lower end of the detection part 14 is connected with a high-voltage arm tube 10, and the lower end of the high-voltage arm tube 10 is connected with a protective Arm pipe 12, a handle 16 is arranged below the protection arm pipe 12, the handle 16 is connected to the protection arm pipe 12 through a retaining ring 15, a display 20 and a communication module 30 are arranged on the handle 16, and the high voltage arm The tube 10 and the protective arm tube 12 are respectively provided with a high-voltage resistor 11 and a low-voltage resistor 13. One end of the high-voltage resistor 11 is connected to the detection part 14, and the other end is connected to the low-voltage resistor 13 and the display 20. The low-voltage resistor 13 and the display 20 Connect in parallel, and one end of the low-voltage resistor 13 and the display 20 is connected to the high-voltage resistor 11, and the other end is grounded. The input of the display 20 is connected with a resistor R1 and a resistor R2 in series, and the output of the resistor R2 is connected with a resistor R2. Resistor R3, the output end of the resistance R3 is respectively connected with a digital voltmeter 23 and a comparator 40, and a humidity detection module 21 and a temperature detection module 22 are connected in parallel between the input end and the output end of the digital voltmeter 23, and its output There is also a communication module 30 connected in series, the output terminal of the comparator 40 is connected in series with an amplifier 50, the output terminals of the amplifier 50 are respectively connected with a buzzer 60 and a resistor R4, and the output terminal of the resistor R4 is also connected in series with a light emitting The diode D1 is connected to the positive and negative poles of the power supply 70 with a double-pole switch K, and the output terminals of the double-pole switch K are connected in series across a filter capacitor 80 and resistors R5 and R6 to form a voltage divider circuit and connected to each unit circuit. The digital voltmeter 23 , the humidity detection module 21 and the temperature detection module 22 are electrically connected to the communication module 30 . The communication module 30 transmits information with the dispatching command center through the wireless network. The new multifunctional electroscope with communication function can judge whether the power line or equipment has electricity. At the same time, the actual voltage value of the power line or equipment and the temperature value and temperature value of the job site can be detected through the digital voltmeter, humidity detection module and temperature detection module. Humidity value, and send the detected voltage value, temperature and humidity information to the dispatch command center through the wireless communication module; its display can display the information detected by the digital voltmeter, humidity detection module and temperature detection module, and can also pass The buzzer and light-emitting diode D1 send warnings and alarms to operating personnel.

(e) The operators in the work vehicle insulate and shield the conductors, insulators and crossarms in sequence; the order of the insulation and shielding is as follows: first the charged body and then the grounding body, from near to far, from bottom to top, and from large to small Insulate and shield the conductors, insulators and cross-arms in the order in which the insulation is shielded, and replace the middle-phase insulator;

(f) Fix the clamp at the front end of the tensioning rod support bottle holder on the line clamp, then clamp the clamp at the rear end on the side right-angle hanging plate of the cross arm, and set the safety pins of the clamps at the front and rear ends sealed;

(g) The operator tightens the screw, checks the stress on the front and rear ends of the fixture and the stroke of the screw, and reports to the operation supervisor after confirming the operation situation. The operation supervisor transmits the operation situation to the dispatching command center through a handheld electronic device; The operator then continues to tighten the screw rod to transfer the load of the insulator string to the tie rod, so that the insulator string relaxes and falls on the insulating bottle holder;

(h) The operator checks the force-bearing parts such as the front and rear end fixtures, insulating bottle holders, tightening rods, screw rods, etc., and reports to the operation supervisor after confirming that there is no problem. Send it to the dispatching command center. After being approved by the dispatching command center, the operation supervisor informs the operator to untie the insulation isolation at the front end of the insulator string, take out the locking pin, and separate the insulator string from the clamp bowl;

(i) The operator removes the side hanging point of the cross-arm of the insulator string, removes the insulating blanket on the insulator string, binds and removes the cross-arm connection of the insulator string, puts down the old insulator string, and installs the new insulator string. After the new insulator strings are installed, restore the isolation and shielding measures.

(j) Restore the connection with the cross arm and the clamp, loosen the clamp screw to force the insulator string, impact and check the connection of each part, and report to the operation supervisor after confirming that there is no problem. The inspection status of the personnel is sent to the dispatching command center. After approval, the operation supervisor notifies the operator to remove and replace the tools, and then perform operations on the other side. After the operations on both sides are completed, remove the insulating pole and send it back to the ground;

(k) After all the three-phase insulators have been replaced, the staff in the work vehicle will remove the insulation and shielding in sequence, the work vehicle will exit the work area and the workers in the work vehicle will be sent back to the ground. The order of insulation and shielding is the order of the grounding body first, then the charged body, from far to near, and from top to bottom.

(l) The job supervisor checks and accepts the completed work, and transmits the inspection result to the dispatching command center through a handheld electronic device. After the dispatching command center confirms that the job is completed, the associated line is reclosed, and the work ends.

The examples are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be listed in the claims of the present invention.

Claims (9)

1. a kind of livewire work method of ultra-high-tension power transmission line, it is characterised in that comprise the following steps：

A () enters to be advanced into the preliminary preparation of field operation；

B () checks whether related power tool outward appearance is damaged, insulation apparatus is checked using insulation tester, confirms temperature Less than 30 DEG C and below height above sea level 2500m and its insulating resistance value are not less than below 725M Ω, or 30 DEG C of temperature and sea Its insulating resistance value is not less than 775M Ω and is otherwise changed when pulling out between 2500m to 3000m；

C () operating personnel wears insulation apparatus and carries the Multifunction electroscope with communication function and enters Operation Van It is interior；

D () operating personnel operates Operation Van to appropriate location, using the Multifunction electroscope with communication function to powered Body and earthing component carry out electrical verification, and line voltage value, operating environment temperature value and the humidity value that will be detected etc. passes through GPRS Network transmission after the control unit of Dispatch and Command Center is adjusted to the data for receiving, will have agreed to Dispatch and Command Center The instruction of operation is sent to the hand held electronic terminals of operation supervisor, and operation supervisor is received after the instruction of Dispatch and Command Center Allowing operating personnel carries out operation；

E the operating personnel in () Operation Van carries out insulation masking to wire, insulator and cross-arm successively, mutually insulated in then changing Son；

(f) by the fixture holding of stringing pull bar bottle-holding rack front end on wire clamp, then by the fixture holding of rear end in the side of cross-arm On right angle hanging plate, and the safety pin of front and back ends fixture is sealed；

G () operating personnel tightens up screw mandrel, the stressing conditions of fixture front and back end and the stroke of screw mandrel are checked, after confirming handling situations Operation supervisor is reported to, operation supervisor is transmitted to Dispatch and Command Center handling situations by hand-hold electronic equipments；Operation Personnel continue thereafter with and tighten up screw mandrel, above insulator chain load transfer to pull bar, insulator chain is relaxed, and fall in insulating insulator On frame；

H () operating personnel checks the stressed members such as front and back end fixture, insulating insulator bracket, stringing pull bar, screw mandrel, after confirming no problem Operation supervisor is reported, the inspection situation of operating personnel is sent to scheduling and referred to by operation supervisor again by hand-hold electronic equipments Center is waved, after scheduled command centre's license, operation supervisor informs that insulator chain front end is dielectrically separated from solution by operating personnel Open, take out locking pin, insulator chain is departed from wire clamp bowl head；

I () operating personnel is unsnaped insulator chain cross-arm side hanging point, remove the insulated target on insulator chain, and colligation is got well and insulation of unsnaping Substring cross-arm is connected, and old insulator chain is put down, and new insulator chain is installed；

J () recovers the connection with cross-arm and wire clamp, slow pine fixture screw mandrel makes insulator chain stress, and impact checks each position connection, It is determined that after having no problem, reporting operation supervisor, operation supervisor passes through hand-hold electronic equipments by the inspection situation of operating personnel Dispatch and Command Center is sent to, by permission, operation supervisor notifies that operating personnel removes replacing instrument, treats three phase isolated more Change after finishing, remove insulation strut；

K staff removes insulation masking successively in sequence in () Operation Van, Operation Van exits working region and by Operation Van Interior operating personnel sends ground back to；

L the work after the completion of () operation supervisor couple carries out an acceptance inspection, and assay is transmitted to tune by hand-hold electronic equipments Degree command centre, after Dispatch and Command Center confirms, end-of-job.

2. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (c) With the Multifunction electroscope with communication function in step (d), it includes test section (14), the test section (14) Lower end is connected with high-voltage arm pipe (10), and the lower end of the high-voltage arm pipe (10) is connected with shield arm pipe (12), the shield arm pipe (12) handle (16) is provided with below, the handle (16) is connected by retaining ring (15) with shield arm pipe (12), the handle (16) display (20) and communication module (30) are provided with, are respectively equipped with the high-voltage arm pipe (10) and shield arm pipe (12) High-tension resistive (11) and low resistance (13), described high-tension resistive (11) one end are connected with test section (14), the other end and low pressure Resistance (13) and display (20) are connected, and the low resistance (13) and display (20) are connected in parallel, and low resistance (13) One end with display (20) is connected with high-tension resistive (11), other end ground connection, and one is connect by the input of the display (20) Individual resistance R1, one resistance R2 of series connection, connect an output end of resistance R3, the resistance R3 point by the output end of the resistance R2 Digital voltmeter (23) and comparator (40) are not connected with, it is in parallel between the input and output end of the digital voltmeter (23) There are humidity detecting module (21) and temperature detecting module (22) and its output end is also in series with communication module (30), the comparator (40) output end is in series with amplifier (50), and the output end of the amplifier (50) is connected to buzzer (60) and resistance The output end of R4, the resistance R4 is also in series with light emitting diode D1, and being connected to double-pole on the both positive and negative polarity of power supply (70) opens K is closed, the span of the output end of the double-pole switch K concatenates filter capacitor (80) and resistance R5, R6 composition bleeder circuit and each list First circuit connection.

3. a kind of livewire work method of ultra-high-tension power transmission line according to claim 2, it is characterised in that：The digital voltage Table (23), humidity detecting module (21) and temperature detecting module (22) are electrically connected with communication module (30).

4. a kind of livewire work method of ultra-high-tension power transmission line according to claim 3, it is characterised in that：The communication module (30) information is transmitted by wireless network and Dispatch and Command Center.

5. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (a) In preliminary preparation include：Operation supervisor confirms job site and equipment according to electron work ticket content, confirms to finish Application afterwards disables associated circuitry reclosing, and task of handing over work, and carries out dangerous spot to operating personnel and informs.

6. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (b) Or the insulation apparatus in step (c) includes insulation clothing, insulated target and apparatus etc. insulated shielding cover.

7. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (e) In wire, insulator and cross-arm are entered according to grounding body, order from the close-by examples to those far off, from down to up, descending after first electrical body Row insulation masking.

8. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (k) According to electrical body after first grounding body, draw near, the insulation of orderly release wire, insulator and cross-arm from top to bottom hides Cover.

9. a kind of livewire work method of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The step (i) In after new insulator chain installs, recovery is dielectrically separated from masking measure.