AU2014359924B2 - Isolator switch comprehensive tester - Google Patents

Isolator switch comprehensive tester Download PDF

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Publication number
AU2014359924B2
AU2014359924B2 AU2014359924A AU2014359924A AU2014359924B2 AU 2014359924 B2 AU2014359924 B2 AU 2014359924B2 AU 2014359924 A AU2014359924 A AU 2014359924A AU 2014359924 A AU2014359924 A AU 2014359924A AU 2014359924 B2 AU2014359924 B2 AU 2014359924B2
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AU
Australia
Prior art keywords
measure
switch
synchronism
ultrasonic probe
displacement sensor
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AU2014359924A
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AU2014359924A1 (en
Inventor
Chunfang CHENG
Yang Li
Yong Liu
Yanling LUO
Guanghui Wang
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State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Original Assignee
STATE GRID HEBEI ELECTRIC POWER Co CANGZHOU BRANCH
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
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Priority to CN201310641416.7A priority Critical patent/CN103616676B/en
Priority to CN201310641416.7 priority
Application filed by STATE GRID HEBEI ELECTRIC POWER Co CANGZHOU BRANCH, State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd filed Critical STATE GRID HEBEI ELECTRIC POWER Co CANGZHOU BRANCH
Priority to PCT/CN2014/092756 priority patent/WO2015081835A1/en
Publication of AU2014359924A1 publication Critical patent/AU2014359924A1/en
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42Knife-and-clip contacts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/16Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring distance of clearance between spaced objects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/0015Means for testing or for inspecting contacts, e.g. wear indicator
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for manufacture of electric switches
    • H01H11/0062Testing or measuring non-electrical properties of switches, e.g. contact velocity

Abstract

An isolator switch comprehensive tester, related to the technical field of testing apparatus for switches. Comprised are a disconnection distance and same period measurement component (1) used for measuring the disconnection distance of an isolator switch and a same period value, a contact head and contact finger base gap measurement component used for measuring a gap value of a contact head and a contact finger base of the isolator switch, and a data reception and analysis terminal used for receiving, analyzing, and displaying measured data. The comprehensive tester provides the characteristics of convenient use and high measurement precision.

Description

ISOLATING SWITCH COMPREHENSIVE TESTER
FIELD OF THE INVENTION
The invention relates to the field of testing devices for switches, especially to an isolating switch comprehensive tester.
BACKGROUND OF THE INVENTION
Isolation distance: a distance between a contact terminal and a contact finger when an isolating switch gate reaches an end position. The function of the isolating switch is to isolate the charged part, thereby leaving a trouble-shooting section with an obvious isolation point. Generally, at first, one end of the contact finger end or the contact terminal end of the isolating switch is charged when the isolating switch switches off, if the isolation distance is not large enough, the uncharged side would be broken down; secondly, if the isolation is too wide or too narrow, the synchronism and straightness of three phase of the isolating switch will be affected, therefore, the isolation distance is an essential item in troubleshooting.
Contact terminal: a gap between the contact terminal and a contact finger seat: the distance between the contact terminal and the contact finger seat when the isolation switch is totally switched on, that is, the linear distance between the position A and the position B shown in Fig. 9.
Isolating switch switch-on switch-off synchronism: the isolating switch generally demarcates three phase into one group, and the three phase should be of linkage, that is, the three phase should be operated by the same operating mechanism, so that the three phase of the isolating switch works synchronously and realizes the switch-off operation and the switch-on operation as illustrated in Fig. 10. So-called “synchronism” refers to whether the switch-on and the switch-off of the triphase switch are synchronized. Disqualification of the synchronism of the isolating switch will affect the electric power stability.
i
Isolating switch isolation distance test technology and method: currently, the method for testing the isolation distance of the isolating switch is to use a tap manually to measure the distance between the contact terminal and the contact finger. This test method will bring some problems. Firstly, since the isolation distance is relatively big, and the operator working at large heights is subjected to space limitation and light and others, which may result in low test precision. Secondly, insulator of a high-voltage level isolating switch is very high, and the contact finger and the contact terminal are positioned on the top of the insulator, furthermore, the isolation distance between the contact finger and the contact terminal is very big after the high-voltage level isolating switch is switched off. Normally, the isolation distance of a 220KV voltage level isolating switch is more than 2.5 meters, and the height of the insulator is more than 2 meters, the operator cannot measure with a tape, which makes the isolation distance measure of the high-voltage level isolating switch blindness and affects the quality of isolating switch inspection severely.
Isolating switch contact terminal-contact finger seat gap test technology and method: currently, the method for measuring a gap between a contact terminal and a contact finger seat is to use a tap manually to measure the inserted depth at the position where the isolating switch switches on. Insulator of a high-voltage level disconnection switch is very high, and the height of the insulator of 220KV voltage level isolating switch is generally more than 2 meters. The operator cannot measure with a tape or other length measure tools, or the operator working at large heights is subjected to space limitation and light and others, which results in low measure accuracy. The high-voltage level isolating switch contact terminal-contact finger seat gap measure becomes blindness and the quality of isolating switch inspection is severely affected.
Isolating switch switch-on and switch-off synchronism measure technology and method: traditional method for measuring isolating switch switch-off and switch-on synchronism includes: switching on the isolating switch during the switching synchronism; when the switch-on is close to complete, observing the distance between the three pairs of contact fingers and contact terminals with human eyes, then measuring the distance between the contact fingers and contact terminals with tap manually operated by operator, and then judging whether the switch-on synchronism is qualified; in a switch-off synchronism, switching off the isolating switch; when the switch-off is close to half-complete, observing the distance between the three pairs of contact fingers and contact terminals with human eyes, then measuring the distance between the contact fingers and contact terminals with tap manually operated by operator, and then judging whether the switch-off synchronism is qualified. Due to relying on human eyes, the measure tools are limited by the space, position and height, and the operation is severely affected by the space, light and others, which affects the measure accuracy. Furthermore, the required synchronized unqualified value is very small, and the measure accuracy is low, thereby severely affecting the quality of the quality of the isolating switch inspection.
SUMMARY OF THE INVENTION
The technical problem to be solved by the present invention is to provide an isolating switch comprehensive tester, which possesses features such as being convenient to use and high testing precision.
In order to solve the above problem, the invention provides technical solutions as follows: an isolating switch comprehensive tester which includes an isolation distance and synchronism measure component for measuring an isolation distance and synchronized data of an isolating switch, a contact terminal-contact finger seat gap measure component for measuring a gap value between a contact terminal and a contact finger seat of the isolating switch, and a data receiving and analyzing terminal for receiving, analyzing, and displaying the measured data.
Figure AU2014359924B2_D0001
', the isolation distance and synchronism measure component includes an isolation distance measure ultrasonic probe, a switch-off synchronism testing ultrasonic probe, a switch-on synchronism testing ultrasonic probe, a first data processing and wireless transmitting module, and a fixed mount component. The isolation distance measure ultrasonic probe, the switch-off synchronism testing ultrasonic probe, and the switch-on synchronism testing
Figure AU2014359924B2_D0002
are electrically connected with the first data processing and wireless transmitting module; the first data processing and wireless transmitting module is fixed inside a first packaged box. The isolation distance measure ultrasonic probe, the switch-off synchronism testing ultrasonic probe, and the switch-on synchronism testing ultrasonic probe are embedded on one side of the first packaged box; the fixed mount component is mounted on another side of the first packaged box. The isolation distance measure ultrasonic probe is perpendicular to the fixed mount component; the included angle between the switch-off synchronism testing ultrasonic probe and the fixed mount component is larger than the included angle between the switch-on synchronism testing ultrasonic probe and the fixed mount component.
Preferably, the isolation distance and synchronism measure component further includes a first level. The fixed mount component include an inverted “L” shaped fixture frame and a clamp bolt; the clamp bolt passes through one side of the inverted “L” shaped fixture frame and partially enters inside the fixture frame. The first level is mounted on the inverted “L” shaped fixture frame.
Figure AU2014359924B2_D0003
, the contact terminal-contact finger seat gap measure component includes a
Figure AU2014359924B2_D0004
sensor, a displacement sensor fixture frame, a fixture frame clamp bolt, and a second data processing and wireless transmitting module.
The displacement sensor is fixed inside the displacement sensor fixture frame. The second data processing and wireless transmitting module is electrically connected 4
Figure AU2014359924B2_D0005
Figure AU2014359924B2_D0006
Figure AU2014359924B2_D0007
Figure AU2014359924B2_D0008
with the displacement sensor; the second data processing and wireless transmitting module is arranged inside a second packaged box. The second packaged box is mounted on the outer side of one side of the frame; the fixture frame clamp bolt passes through one side of the displacement sensor fixture frame and partially enters the fixture frame.
Preferably, the displacement sensor can be arranged inside the displacement sensor fixture frame movably leftwards and rightwards through a slide groove rail beneath the displacement sensor.
Preferably, the contact terminal-contact finger seat gap measure component further includes a second level; the second level is mounted on the outer part of the upper side of the displacement sensor fixture frame.
Preferably, the measure contact terminal of the displacement sensor is movably mounted on a measure rod.
Preferably, the data receiving and analyzing terminal includes a wireless receiving module, a data processing module and a displaying module.
The above described technical solutions possess advantageous effect on that the tester includes two parts, which are the measure part and data receiving and the analyzing terminal. The measure part measures the isolating switch isolation distance and switch-off and switch-on synchronism using the ultrasonic probe and measures contact terminal-contact finger seat gap using the displacement sensor, and then the data receiving and analyzing terminal processes the measured data to obtain the required detective value. During the whole testing process, it’s very convenient for the operator to measure data, and the usage of the electronic components avoids errors caused by manual operation and improves the measure accuracy.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is further explained below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a top structural schematic view of the isolation distance and synchronism measure component according to the invention;
Fig. 2 is a front structural schematic view of the isolation distance and synchronism measure component according to the invention;
Fig. 3 is a front structural schematic view of the contact terminal-contact finger seat gap measure component according to the invention;
Fig. 4 is a top structural schematic view of the contact terminal-contact finger seat gap measure component according to the invention;
Fig. 5 is a bottom structural schematic view of the contact terminal-contact finger seat gap measure component according to the invention;
Fig. 6 is a front structural schematic view of the data receiving and analyzing terminal according to the invention;
Fig. 7 is an assembly structural schematic view according to the invention;
Fig. 8 is an original location view of the contact terminal-contact finger seat gap measure component;
Fig. 9 is an end location view7 of the contact terminal-contact finger seat gap measure component;
Fig. 10 is a structural schematic view of the isolating switch synchronism measure; and
Fig. 11 is a software flow chart of the data receiving and analyzing terminal.
Wherein:
I. Isolation distance and synchronism measure component
II. Isolation distance measure ultrasonic probe
12. Switch-off synchronism testing ultrasonic probe
13. Switch-on synchronism testing ultrasonic probe
14. First packaged box
15. A first level
16. Inverted “L” shaped fixture frame
17. Clamp bolt
2. Contact terminal-contact finger seat gap measure component
21. Displacement sensor
22. Displacement sensor fixture frame
23. Fixture frame clamp bolt
24. A second packaged box
25. Slide groove rail
26. Second level
27. Measure contact terminal
28. Measure rod
29. Range adjustment fastening screw
3. Data receiving and analyzing terminal
4. Rain cover
5. Contact terminal
6. Contact finger seat.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
An isolating switch comprehensive tester includes an isolation distance and synchronism measure component 1 for measuring isolation distance and synchronized data of isolating switch, a contact terminal-contact finger seat gap measure component 2 for measuring the gap value between the contact terminal and the contact finger seat of the isolating switch, and a data receiving and analyzing terminal 3 for receiving, analyzing, and displaying the measured data. The data receiving and analyzing terminal 3 includes a wireless receiving module, a data processing module and a display module.
As shown in Figs. 1-2, the isolation distance and synchronism measure component 1 includes an isolation distance measure ultrasonic probe 11, a switch-off synchronism testing ultrasonic probe 12, a switch-on synchronism testing ultrasonic probe 13, a first data processing and wireless transmitting module, a fixed mount component and a first level 15. The isolation distance measure ultrasonic probe 11, the switch-off synchronism testing ultrasonic probe 12, and the switch-on synchronism testing ultrasonic probe 13 are electrically connected with the first data processing and wireless transmitting module; the first data processing and wireless transmitting module is fixed inside a first packaged box 14. The isolation distance measure ultrasonic probe 11, the switch-off synchronism testing ultrasonic probe 12, and the switch-on synchronism testing ultrasonic probe 13 are embedded on one side of the first packaged box 14; the fixed mount component is mounted on another side of the first packaged box 14. The isolation distance measure ultrasonic probe 11 is perpendicular to the fixed mount component; the included angle between the switch-off synchronism testing ultrasonic probe 12 and the fixed mount component is larger than the included angle between the switch-on synchronism testing ultrasonic probe 13 and the fixed mount component. The fixed mount component include an inverted “L” shaped fixture frame 16 and a clamp bolt 17; the clamp bolt 17 passes through one side of the inverted “L” shaped fixture frame 16 and partially enters inside the fixture frame. The first level 15 is mounted on the upper surface of the inverted “L” shaped fixture frame 16.
As shown in Figs. 3-5, the contact terminal-contact finger seat gap measure component 2 includes a displacement sensor 21, a displacement sensor fixture frame 22, a fixture frame clamp bolt 23, a second data processing and wireless transmitting module and a second level 26. The displacement sensor 21 is fixed inside the displacement sensor fixture frame 22; the displacement sensor 21 can be 8 arranged inside the displacement sensor fixture frame 22 movably leftwards and rightwards through a slide groove rail 25 beneath the displacement sensor 21. The second data processing and wireless transmitting module is electrically connected with the displacement sensor 21; the second data processing and wireless transmitting module is arranged inside a second packaged box 24. The second packaged box 24 is mounted on the outer side of one side of the frame; the fixture frame clamp bolt 23 passes through one side of the displacement sensor fixture frame 22, and partially enters the fixture frame. The second level 26 is mounted on the outer part of the upper side of the displacement sensor fixture frame 22.
As shown in Fig. 7, there are overall three isolation distance and synchronism measure components which are mounted on the A, B, C three-phase contact finger end conductive arms of the isolating switch respectively. After being clamped on the conductive arms, the three isolation distance and synchronism measure components are calibrated using the levels on the components, and fully fixed by screwing up the clamp bolt. There are overall three contact terminal-contact finger seat gap measure components which are mounted on the rain cover of the A, B, C three-phase contact fingers of the isolating switch respectively. After being clamped on the rain cover of the contact fingers, the three contact terminal-contact finger seat gap measure components are calibrated using the level on the component, and fully fixed by screwing up the clamp bolt.
A slide groove rail is arranged beneath the displacement sensor fixture frame of the contact terminal-contact finger seat gap measure component; the displacement sensor can be slid leftwards and rightwards along the slide groove rail to adjust the position of the displacement sensor, so as to adapt to isolating switches of different manufacturers and voltage levels. After the position of the displacement sensor is calibrated, the displacement sensor fastening screw is screwed up to achieve the calibration.
The displacement sensor is the core part of the contact terminal-contact finger seat gap measure component, and the displacement sensor configured to measure the gap between the contact terminal and the contact finger seat requires individual design. The measure rod of the displacement sensor can be slid leftwards and rightwards by screwing off a range adjustment fastening screw 29 so as to adjust the range. The measure contact terminal of the displacement sensor can be slid upwards and downwards by screwing off a height adjustment fastening screw of the displacement sensor so as to adjust the height and thereby adapting to isolating switches of different manufacturers and voltage levels.
The data receiving and analyzing terminal is the main part of the isolating switch comprehensive tester, the structure of the data receiving and analyzing terminal is as shown in Fig.6. After the startup buttons of the isolation distance and synchronism measure component and the contact terminal-contact finger seat gap measure component are pressed down, and the startup button of the data receiving and analyzing terminal is also pressed down, the data receiving and analyzing terminal and the isolation distance and synchronism measure component are wirelessly communicated with the contact terminal-contact finger seat gap measure component through the data processing and wireless transmitting module.
A graphical operation interface is arranged in the touch screen of the data receiving and analyzing terminal, the graphical operation interface is divided into three modules according to its programmable design; the main part is a measure working module, and the accessory modules are a history records checking module and a terminal setting module. After the startup button of the data receiving and analyzing terminal is pressed down, the data receiving and analyzing terminal is firstly communicatively connected with the isolation distance and synchronism measure component and the contact termin al-contact finger seat gap measure component of measuring part. A welcome prompt interface will be entered after connected successfully, and a failure prompt interface will be entered if a connective communicative failure occurs or the startup button of the measuring part is not pressed down.
Measure working module: after clicking the measure working button, the measure working module is entered. At first, the substation and testing device recording interface is entered, the confirmation button is pressed down after the entry is complete, and the information record of the measure device is saved. Since the isolating switch should be in the switch-off state during use of the device, the isolation distance and synchronism measure component and the contact terminal-contact finger seat gap measure component should be mounted under the switch-off state. Therefore, after saving the information record of the measure component, it is the isolation distance of the isolating switch that should be measured firstly, and the isolation distance measure interface should be entered .
After the measure result of the isolation distance is tested out, the measure result is compared with pre-established device parameter database. When compared with the device of corresponding voltage level and corresponding device model, a qualified interface will be shown when the device parameter database is within a reasonable range. If A-phase is beyond the reasonable range, an unqualified interface will be shown. The qualified interface will be entered when the re-measured result is qualified, the re-measure interface can be entered by pressing down all the re-measure buttons, and the unqualified interface will be re-entered if the result is unqualified. When the result button is pressed down, the isolation distance measure result will be saved and switch-on non-synchronism measure interface will be entered.
The measure switch-on non-synchronism measure button is pressed down to enter the switch-on non-synchronism measure interface, the distance between the contact finger and the contact terminal of A-phase, the distance between the contact finger and the contact terminal of B-phase, the distance between the contact finger and the contact terminal of C-phase when the switch-on position is to be reached is provided so as to compare which phase is faster and which phase is slower, and provide the result of the switch-on non-synchronism. After the measure result of the switch-on non-synchronism is tested out, compare the measure result with pre-established device parameter database. When compared with the device of corresponding voltage level and corresponding device model, a qualified interface will be shown when the device parameter database is within a reasonable range. If A-phase is beyond the reasonable range, then an unqualified interface will be shown. The qualified interface will be entered when the re-measured result is qualified. Press down all the re-measure buttons to enter the re-measure interface, and re-enter the unqualified interface if the result is unqualified. When the result button is pressed down, save the switch-on non-synchronism result and enter a contact terminal-contact finger seat gap measure interface.
Press down the contact terminal-contact finger seat gap button to enter the contact terminal-contact finger seat gap measure interface. After the measure result of the contact terminal-contact finger seat gap is tested out, compare the measure result with pre-established device parameter database. When compared with the device of corresponding voltage level and corresponding device model, a qualified interface will be shown when the device parameter database is within a reasonable range. If A-phase is beyond the reasonable range, then an unqualified interface will be shown. Press down all the re-measure buttons to enter the re-measure interface, enter the qualified interface if the result is qualified, and re-enter the unqualified interface if the result is unqualified. When the result button is pressed down, save the contact terminal-contact finger seat gap result and enter a switch-off non-synchronism measure interface.
Press down the measure switch-off non-synchronism button to enter the switch-off non-synchronism measure, provide the distance between the contact finger and the contact terminal of A-phase, the distance between the contact finger and the contact terminal of B-phase, the distance between the contact finger and the contact terminal of C-phase at the 2/3 switched-off position, so as to determine which phase is faster and which phase is slower, and provide the switch-off non-synchronism interface. After the measure result of the switch-off non-synchronism is tested out, compare the measure result with pre-established device parameter database. When compared with the device of corresponding voltage level and corresponding device model, a qualified interface will be shown when the device parameter database is within a reasonable range. If A-phase is beyond the reasonable range, then an unqualified interface will be shown. The qualified interface will be entered when the re-measured result is qualified. Press down all the re-measure buttons to enter the re-measure interface, and re-enter the unqualified interface if the result is unqualified. When the result button is pressed down, save the switch-on non-synchronism result, enter measure completion interface, and show the measure result interface. After completing the measure, enter the measure result display interface and then display the detailed information on the measure. Press down the Return function selective interface, and return to the original interface.
<2> History records checking module: store all the data recorded by the measure working module in a Micro SD card. Click the history records checking button, enter the history records checking module, read the data in the Micro SD card, and turn over the page using arrow buttons. <3> Setting module, mainly for setting the time and date.
Isolation distance measure theory: based on ultrasonic distance measure theory, when the ultrasonic emits a probe wave; the probe wave will transmit straightly, and when it reaches a barrier, which is the measured object, the probe wave will bounce back and turn into receiving wave; obtain a distance through the transmitting speed and time and divide the distance by two. The length of the ultrasonic probe possess certain length, which is represented as Lh, and the range of the wave is represented as Lb therefore, the isolation distance Lj=Lh+Li; and the length of the ultrasonic probe should be taken in account in the programmable design of data receiving and analyzing terminal.
The isolation distance measure shares the same theory' with switch-on non-synchronism measure, which also uses ultrasonic distance measure theory. The method to measure the isolating switch switch-on synchronism is: during the switch-on process, when the switch-on operation is nearly complete (the distance between the contact terminal and the contact finger is about 100mm), let the ultrasonic detection distances of A, B, C be LAon? Lbon, Lcon, get the difference values:
Figure AU2014359924B2_D0009
the maximum absolute value of ALOnab, ALOnbc5 ALOnac as the switch-on non-synchronism measure result. Since the data is obtained from the difference value of switch-on non-synchronism, the length of the ultrasonic probe need not be taken into account.
The isolation distance measure shares the same theory with switch-off non-synchronism measure, which also uses ultrasonic distance measure theory. The method to measure the isolating switch switch-off synchronism is: during switching off process, when the switch-off operation is 2/3 complete, let the ultrasonic probe distances of the three-phase A, B, C be LAoff, Lboff, 1-co.o - get the difference values: Δ Lopfab^Laoff-Lboff, Δ L(ffpBC-™LBOpp-L(;OpF, Δ L()ppAC-LAOFp-Lf-f}pp. Take the maximum absolute value of Δ.ΕθρρΑΒ, ΔΔθρρβρ·, ΔΕορραρ as the switch-off non-synchronism measure result. Since the data is obtained from the difference value of switch-off non-synchronism, the length of the ultrasonic probe need not be taken into account.
Contact terminal-contact finger seat gap measure theory: measuring the gap between the contact terminal and the contact finger seat indirectly using the distance of travel of the displacement sensor. The isolating switch switches on and switches off by rotating the contact finger arm and the contact terminal arm around a center of a circle by 90 degrees, which center is a support: insulator. The contact terminal-contact finger seat gap measure component is mounted on a rain cover. As shown in Fig.8, since the measure rod of the displacement rod is parallel to the two contact finger rows, let the position where the contact terminal firstly contact the contact terminal of the displacement sensor be the original position. When the contact terminal-contact finger seat gap measure component is mounted, the far-left end of the measure rod of the displacement sensor is flush with the far-right end of the contact finger seat. During the inserting process of the isolating switch, the measure rod moves leftwards under the action of the contact terminal of the measure rod. Let the overall length of the measure rod be represented as Lmeasurerod, the inserted depth of the contact terminal measured by the displacement sensor be represented as LBinserteddepth, then the to-be-measured-gap between the contact terminal and the contact finger seat is Lmeasurerod-LBinserteddeptii? which is the linear distance between A and B as shown in Fig. 9. The data receiving and analyzing terminal program design flow7 chart is as shown in Fig. 11.
The tester includes two parts, which are a measure part and a data receiving and analyzing terminal. The measure part measures the isolating switch isolation distance and switch-on and switch-off synchronism using the ultrasonic probe, and measures the contact terminal- contact finger seat gap using the displacement sensor; then the data receiving and analyzing terminal processes the measure data and obtains the required detective value. During the whole testing process, it’s very convenient for the operator to measure the data, and the electronic components are utilized, which avoids the error caused by manual operation and improves the measure accuracy.
The specification describes several specific embodiments to explain the principle and of the invention. The embodiments are just for elping understand the method and core principle of the invention. It should be noted that for people skilled in the art, the invention can be improved and modified within the spirit of the invention, and the improvements and modifications are 15 within the protection scope of the invention.

Claims (8)

  1. What is claimed is:
    1. An isolating switch comprehensive tester, wherein the isolating switch comprehensive tester includes an isolation distance and synchronism measure component (1) for measuring isolation distance and synchronized data of an i solating switch, a contact termi nal-contact finger seat gap measure component (2) for measuring a gap value between a contact terminal and a contact finger seat of the isolating switch, and a data receiving and analyzing terminal (3) for receiving, analyzing, and displaying measured data.
  2. 2. The isolating switch comprehensive tester of claim 1, wherein the isolation distance and synchronism measure component (1) includes an isolation distance measure ultrasonic probe (11), a switch-off synchronism testing ultrasonic probe (12), a switch-on synchronism testing ultrasonic probe (13), a first data processing and wireless transmitting module, and a fixed mount component; the isolation distance measure ultrasonic probe (11), the switch-off synchronism testing ultrasonic probe (12), and the switch-on synchronism testing ultrasonic probe (13) are electrically connected with the first data processing and wireless transmitting module; the first data processing and wireless transmitting module is fixed inside a first packaged box (14); the isolation distance measure ultrasonic probe (11), the switch-off synchronism testing ultrasonic probe (12), and the switch-on synchronism testing ultrasonic probe (13) are embedded on one side of the first packaged box (14); the fixed mount component is mounted on another side of the first packaged box (14); the isolation distance measure ultrasonic probe (11) is perpendicular to the fixed mount component; an included angle between the switch-off synchronism testing ultrasonic probe (12) and the fixed mount component is larger than an included angle between the switch-on synchronism testing ultrasonic probe (13) and the fixed mount component.
  3. 3. The isolating switch comprehensive tester of claim 2, wherein the isolation distance and synchronism measure component (1) further includes a first level (15);
    the fixed mount component include an inverted “L” shaped fixture frame (16) and a clamp bolt (17); the clamp bolt (17) passes through one side of the inverted “L” shaped fixture frame (16) and partially enters inside the fixture frame; the first level (15) is mounted on the inverted “L” shaped fixture frame (16),
  4. 4. The isolating switch comprehensive tester of claim 1, wherein the contact terminal-contact finger seat gap measure component (2) includes a displacement sensor (21), a displacement sensor fixture frame (22), a fixture frame clamp bolt (23) , a second data processing and wireless transmitting module; the displacement sensor (21) is fixed inside the displacement sensor fixture frame (22); the second data processing and wireless transmitting module is electrically connected with the displacement sensor (21); the second data processing and wireless transmitting module is arranged inside a second packaged box (24); the second packaged box (24) is mounted on an outer side of one side of the frame; the fixture frame clamp bolt (23) passes through one side of the displacement sensor fixture frame (22), and partially enters the fixture frame.
  5. 5. The isolating switch comprehensive tester of claim 4, wherein the displacement sensor (21) is movably leftwards and rightwards arranged inside the displacement sensor fixture frame (22) through a slide groove rail (25) beneath the displacement sensor (21).
  6. 6. The isolating switch comprehensive tester of claim 4 or 5, wherein the contact terminal-contact finger seat gap measure component (2) further includes a second level (26); the second level (26) is mounted on an outer part of the upper side of the displacement sensor fixture frame (22).
  7. 7. The isolating switch comprehensive tester of claim 4 or 5, wherein the measure contact terminal (27) of the displacement sensor (21) is movably mounted on a measure rod (28).
  8. 8. The isolating switch comprehensive tester of any one of claims 1, 3 and 5, wherein the data receiving and analyzing terminal (3) includes a wireless receivin module, a data processing module and a displaying module.
AU2014359924A 2013-12-04 2014-12-02 Isolator switch comprehensive tester Active AU2014359924B2 (en)

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CN201310641416.7A CN103616676B (en) 2013-12-04 2013-12-04 Disconnector comprehensive tester
CN201310641416.7 2013-12-04
PCT/CN2014/092756 WO2015081835A1 (en) 2013-12-04 2014-12-02 Isolator switch comprehensive tester

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CN104792451A (en) * 2015-04-18 2015-07-22 安庆师范学院 Angle and torque tester for disconnectors
CN105823984B (en) * 2016-05-16 2018-09-14 山东省产品质量检验研究院 A kind of disconnecting switch short circuit making experiment auxiliary device and application
CN106908181A (en) * 2017-03-22 2017-06-30 安徽正钧信息科技有限公司 A kind of device for testing disconnecting switch angle and moment of torsion

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CN103616676A (en) 2014-03-05
CN103616676B (en) 2016-03-30

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