CN109633514A - A kind of active defense formula electric power mutual-inductor polarity tester - Google Patents
A kind of active defense formula electric power mutual-inductor polarity tester Download PDFInfo
- Publication number
- CN109633514A CN109633514A CN201811653455.8A CN201811653455A CN109633514A CN 109633514 A CN109633514 A CN 109633514A CN 201811653455 A CN201811653455 A CN 201811653455A CN 109633514 A CN109633514 A CN 109633514A
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- China
- Prior art keywords
- wire clamp
- axle center
- bolt
- switching device
- electric power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of active defense formula electric power mutual-inductor polarity testers, including wire clamp, support frame, detect box, support frame as described above includes support rod, connecting rod, holding rod, the upper end of the holding rod is vertically connected with connecting rod, the both ends of the connecting rod are vertically equipped with support rod, the end of every support rod is equipped with wire clamp, automatic switching device is equipped in the detection box, combined aural and visual alarm, battery, for detecting the pointer multimeter of mutual inductor, one wire clamp is electrically connected with the cathode of battery, another wire clamp is electrically connected with automatic switching device, the automatic switching device is electrically connected with the anode of battery, the combined aural and visual alarm is electrically connected with automatic switching device.Solve the problems, such as that being easy to appear line short causes shorter battery life at present, the route of tester can be disconnected and carry out warning reminding, can protect detector and the safety of staff, make use safer by automatic switching device.
Description
Technical field
The present invention relates to technical field of electric power detection, specially a kind of active defense formula electric power mutual-inductor polarity tester.
Background technique
It needs to carry out mutual inductor Check up polarity after mutual inductor new clothes or failure replacement to guarantee the accurate of electric-power metering, passes
The measurement method of system is respectively to draw a conducting wire from the positive and negative anodes of dry cell, is connect simultaneously by conducting wire with current or voltage mutual inductor
Throw of pointer direction is observed to be observed.
Current detection mode has two, on the one hand, is easy to happen directly from two conducting wires of bar battery lead
Connection causes dry cell short circuit dischange, shorter battery life；On the other hand, mutual inductor must be powered off in detection process, such as
Incoming switch occurs in fruit causes mutual inductor to charge extremely, and the staff for carrying out mutual inductor polarity detection has Danger Electric shock risk.
Summary of the invention
The present invention provides a kind of active defense formula electric power mutual-inductor polarity aiming at deficiencies of the prior art
Tester grips mutual inductor both ends primary line using two wire clamps, and connection is stronger, easy to use, and
And wire clamp is fixed on support rod, will not be in contact between two wire clamps, is solved and is easy to appear line short at present and causes
The problem of shorter battery life, save cost, and support frame can allow staff can be to eminence or low without climbing
The mutual inductor at place is detected, while automatic switching device is arranged, and when mutual inductor electrification, automatic switching device can be by tester
Route disconnect and carry out warning reminding, on the one hand can remind staff carry out correct operation, on the other hand can protect inspection
The safety for surveying instrument and staff, makes use safer.
To achieve the above object, invention provides the following technical solutions:
A kind of active defense formula electric power mutual-inductor polarity tester, including wire clamp, support frame, detection box, support frame as described above
Including support rod, connecting rod, holding rod, the upper end of the holding rod is vertically connected with connecting rod, and the both ends of the connecting rod are vertically set
Have a support rod, the end of every support rod is equipped with wire clamp, be equipped in the detection box automatic switching device, combined aural and visual alarm,
Battery, the pointer multimeter for detecting mutual inductor, a wire clamp are electrically connected with the cathode of battery, another wire clamp and automatic throwing
Cutting apparatus electrical connection, the automatic switching device are electrically connected with the anode of battery, the combined aural and visual alarm and automatic switching device
Electrical connection.
Preferably, the automatic switching device includes controller, relay, and the relay is arranged in anode and line
On route between folder, the controller is electrically connected with combined aural and visual alarm, relay respectively.
Preferably, the end of the support rod is hinged with connected ball, and the connected ball is equipped with cable-through hole, the wire clamp
One end is set in cable-through hole, and wire clamp is connected by the inner wall of connecting shaft and cable-through hole, is connected with a drawstring, institute in the connecting shaft
Holding rod is stated equipped with knob, drawstring sequentially pass through cable-through hole, the inside of support rod, the inside of connecting rod, holding rod inside and with
Knob connection.
Preferably, the wire clamp includes the first collet, the second collet, and the connecting shaft includes shaft sleeve, axle center cylinder, axle sleeve
One end of cylinder is fixedly connected with the inner wall of cable-through hole, and the shaft sleeve is socketed in the outside of axle center cylinder, shaft sleeve and axle center cylinder
Between be equipped with torsional spring, one end of torsional spring connect with shaft sleeve, and the other end of torsional spring is connect with axle center tin, between shaft sleeve and axle center tin
It is fixed by bolt, the bolt is connect with axle center cylinder, and the drawstring is connect with bolt, and first collet and shaft sleeve connect
It connects, second collet is connect with axle center cylinder.
Preferably, the shaft sleeve is equipped with lockhole, rotation mouth, and the lockhole is arranged by close end, and lockhole is matched with bolt
It closes, the end of second collet passes through rotation mouth and connect with the lateral wall of axle center cylinder.
Preferably, one end of the axle center cylinder is equipped with mounting post, and the torsion spring set is on connecting column, the other end of axle center cylinder
Inner wall be equipped with lockpin sleeve bucket, the side wall of axle center cylinder is equipped with pin hole, the upper port of the lockpin sleeve bucket and pin hole out
Alignment, the bolt are set in lockpin sleeve bucket, and spring is equipped between the lower end of bolt and the bottom of lockpin sleeve bucket, lockpin sleeve bucket
Bottom is equipped with outlet hole, and the drawstring is penetrated from outlet hole and connect with bolt.
Preferably, the lower end of the bolt is equipped with key seat, and the inner wall of the key seat and lockpin sleeve bucket is slidably connected.
Preferably, the inner wall of the pin hole out is equipped with stop collar.
Compared with prior art, advantageous effect of the invention is:
1, the present invention grips mutual inductor both ends primary line using two wire clamps, and connection is stronger, makes
With convenient, and wire clamp is fixed on support rod, will not be in contact between two wire clamps, is solved and is easy to appear route at present
Short circuit causes the problem of shorter battery life, saves cost, and support frame can allow staff can be right without climbing
The mutual inductor of eminence or lower is detected, while automatic switching device is arranged, when mutual inductor electrification, automatic switching device meeting
The route of tester is disconnected and carries out warning reminding, staff on the one hand can be reminded to carry out correct operation, on the other hand may be used
To protect the safety of detector and staff, make use safer.
2, wire clamp of the invention is hinged by connected ball and support rod ball chain, can increase position tune of the wire clamp in space
Section, angular adjustment is more flexible and convenient, facilitates detection.
3, connecting shaft of the invention allows wire clamp to have the clamping force being closed automatically, it is ensured that the fastness of clamping, while axle sleeve
It is fixed between cylinder and axle center cylinder by bolt, when use can open in advance wire clamp, after reaching clip position, pass through rotation rotation
Button pulls bolt to realize the automatic closure of wire clamp using drawstring, to complete automatic clamp process, staff does not need to carry out
Climb or climb it is low come connection line, detection more safe ready.
4, the present invention is equipped with key seat in the lower end of bolt, and the inner wall of key seat and lockpin sleeve bucket is slidably connected and can guarantee bolt
The stability of sliding is equipped with stop collar on the inner wall of pin hole out, can be defined to the stroke of key seat, prevents bolt de-
Out, while drawstring can be replaced to carry out limit bolt, improves the service life of drawstring.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram for detecting box；
Fig. 3 is the cross-sectional view of reference test bar；
Fig. 4 is the structural schematic diagram of support rod and wire clamp cooperation；
Fig. 5 is the fit structure schematic diagram of wire clamp and connected ball；
Fig. 6 is the structural schematic diagram of wire clamp；
Fig. 7 is the structural schematic diagram of connecting shaft；
The structural schematic diagram of Fig. 8 shaft sleeve.
Fig. 9 is the structural schematic diagram of axle center cylinder；
Figure 10 is the sectional view of axle center cylinder.
In figure: 1- wire clamp；The first collet of 101-；The second collet of 102-；2- support rod；201- connected ball；202- cable-through hole；
3- connecting rod；4- holding rod；5- detects box；501- automatic switching device；502- combined aural and visual alarm；503- pointer multimeter；
504- battery；6- knob；7- drawstring；8- connecting shaft；801- shaft sleeve；The axle center 802- cylinder；803- torsional spring；804- lockhole；805-
Rotate mouth；806- mounting post；807- goes out pin hole；808- lockpin sleeve bucket；809- stop collar；810- bolt；811- key seat；802- bullet
Spring；813- outlet hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of active defense formula electric power mutual-inductor polarity tester, including wire clamp 1, support frame, detection box
5, support frame as described above includes support rod 2, connecting rod 3, holding rod 4, and the upper end of the holding rod 4 is vertically connected with connecting rod 3, the connection
The both ends of bar 3 are vertically equipped with support rod 2, and the end of every support rod 2 is equipped with wire clamp 1, as shown in Fig. 2, the detection box 5
It is interior to be equipped with automatic switching device 501, combined aural and visual alarm 502, battery 504, the pointer multimeter 503 for detecting mutual inductor,
Battery is 1.5V dry cell, and a wire clamp 101 is electrically connected with the cathode of battery 504, another wire clamp 101 and automatic switching device
501 electrical connections, the automatic switching device 501 are electrically connected with the anode of battery 504, and the combined aural and visual alarm 502 is thrown with automatic
Cutting apparatus 501 is electrically connected.
The automatic switching device 501 includes controller, relay, and controller uses 51 single-chip microcontrollers, and the relay is set
It sets on the route between 504 anode of battery and wire clamp 1, the controller is electrically connected with combined aural and visual alarm, relay respectively.
As shown in figure 4, the end of the support rod 2 is hinged with connected ball 201, position of the wire clamp in space can be increased
It adjusts, angular adjustment is more flexible and convenient, facilitates detection.As shown in figure 5, the connected ball 201 is equipped with cable-through hole 202, institute
The one end for stating wire clamp 1 is set in cable-through hole 202, and wire clamp 1 is connect by connecting shaft 8 with the inner wall of cable-through hole 202, as shown in figure 3,
A drawstring 7 is connected in the connecting shaft 8, the holding rod 4 is equipped with knob 6, and drawstring 7 sequentially passes through cable-through hole 202, support rod
2 inside, the inside of connecting rod 3, the inside of holding rod 4 are simultaneously connect with knob 6.
As shown in fig. 6, the wire clamp 1 includes the first collet 101, the second collet 102, as shown in fig. 7, the connecting shaft 8
Including shaft sleeve 801, axle center cylinder 802, one end of shaft sleeve 801 is fixedly connected with the inner wall of cable-through hole 202, the shaft sleeve
801 be socketed in axle center cylinder 802 outside, shaft sleeve 801 and axle center cylinder 802 between be equipped with torsional spring 803, one end of torsional spring 803 with
Shaft sleeve 801 connects, and the other end of torsional spring 803 is connect with axle center cylinder 802, passes through bolt between shaft sleeve 801 and axle center cylinder 802
810 is fixed, and the bolt 810 is connect with axle center cylinder 802, and the drawstring 7 is connect with bolt 810, first collet 101 and axis
Sleeve 801 connects, and second collet 102 is connect with axle center cylinder 802.Pass through bolt between shaft sleeve 801 and axle center cylinder 802
810 is fixed, and when use can open in advance wire clamp, after reaching clip position, is pulled and is inserted using drawstring 7 by turning knob 6
Pin 810 realizes the automatic closure of wire clamp, to complete automatic clamp process, staff does not need to climb or climb low connect
Link, detection more safe ready.
As shown in figure 8, the shaft sleeve 801 is equipped with lockhole 804, rotation mouth 805, the lockhole 804 is set by close end
It sets, lockhole 804 and bolt 810 cooperate, and the end of second collet 102 passes through the lateral wall of rotation mouth 805 and axle center cylinder 802
Connection.
As shown in figure 9, one end of axle center cylinder 802 is equipped with mounting post 806, as shown in fig. 7,803 sets of the torsional spring exists
On connecting column 806, as shown in Figure 10, the inner wall of the other end of axle center cylinder 802 is equipped with lockpin sleeve bucket 808, the axle center cylinder 802
Side wall is equipped with pin hole 807, and the upper port of the lockpin sleeve bucket 808 is aligned with pin hole 807 out, and the bolt 810 is set to lock
In guide bucket 808, spring 802, the bottom of lockpin sleeve bucket 808 are equipped between the lower end of bolt 810 and the bottom of lockpin sleeve bucket 808
Equipped with outlet hole 813, the drawstring 7 is penetrated from outlet hole 813 and is connect with bolt 810.
As shown in Figure 10, the lower end of the bolt 810 is equipped with key seat 811, and the key seat 811 is interior with lockpin sleeve bucket 808
Wall is slidably connected, and the inner wall of the pin hole 807 out is equipped with stop collar 809.Guarantee the stability that bolt 810 slides, is going out to sell
The inner wall in hole 807 is equipped with stop collar 809, can be defined to the stroke of key seat 811, prevents bolt 810 from deviating from, while energy
Enough carry out limit bolt instead of drawstring 7, improves the service life of drawstring 7.
In use, if detection current transformer, gets to DC current shelves for pointer multimeter 503 first, then breaks into two with one's hands
Wire clamp 1, allow it is angled between the first collet 101 and the second collet 102, when going to certain position, pin hole 807 and lockhole out
804 alignment, bolt 810 can be inserted into lockhole 804 and fix shaft sleeve 801 and axle center cylinder 802 under the action of spring 803, then
The angle for adjusting two wire clamps 1 after adjustment, lifts holding rod, connects wire clamp 1 and the mutual inductance primary line at current transformer both ends
It connects, by turning knob 6, drawstring 7 pulls bolt 810, and bolt 810 is deviate from out of lockhole 804, under the action of torsional spring 803, the
One collet 101 and the second collet 102, which are closed, clamps mutual inductance primary line, while by pointer multimeter 503 and mutual induction secondary line
Connection is tested, and such as mutual inductor charges at this time, then relay can disconnect the route between battery 504 and wire clamp, same to time control
Device control combined aural and visual alarm alarm 502 processed.The present invention is solid clamp to mutual inductor both ends primary line using two wire clamps 1
Fixed, connection is stronger, easy to use, and wire clamp is fixed on support rod 2, will not be in contact between two wire clamps 1, solution
It has determined and has been easy to appear the problem of line short causes shorter battery life at present, saved cost, and support frame can allow work
The mutual inductor of eminence or lower can be detected without climbing by making personnel, while automatic switching device 501 is arranged, and work as mutual inductance
When device charges, the route of tester can be disconnected and carry out warning reminding by automatic switching device 501, on the one hand can remind work people
Member carries out correct operation, on the other hand can protect detector and the safety of staff, makes use safer.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of active defense formula electric power mutual-inductor polarity tester, it is characterised in that: including wire clamp, support frame, detection box, institute
Stating support frame includes support rod, connecting rod, holding rod, and the upper end of the holding rod is vertically connected with connecting rod, the both ends of the connecting rod
It is vertically equipped with support rod, the end of every support rod is equipped with wire clamp, is equipped with automatic switching device, acousto-optic in the detection box
Alarm, battery, the pointer multimeter for detecting mutual inductor, a wire clamp are electrically connected with the cathode of battery, another wire clamp
Be electrically connected with automatic switching device, the anode of the automatic switching device and battery be electrically connected, the combined aural and visual alarm with automatically
Switching device electrical connection.
2. a kind of active defense formula electric power mutual-inductor polarity tester as described in claim 1, it is characterised in that: described automatic
Switching device includes controller, relay, and the relay is arranged on the route between anode and wire clamp, the control
Device is electrically connected with combined aural and visual alarm, relay respectively.
3. a kind of active defense formula electric power mutual-inductor polarity tester as described in claim 1, it is characterised in that: the support
The end of bar is hinged with connected ball, and the connected ball is equipped with cable-through hole, and one end of the wire clamp is set in cable-through hole, and wire clamp is logical
The inner wall for crossing connecting shaft and cable-through hole connects, and is connected with a drawstring in the connecting shaft, and the holding rod is equipped with knob, drawstring according to
It is secondary to pass through cable-through hole, the inside of support rod, the inside of connecting rod, the inside of holding rod and connect with knob.
4. a kind of active defense formula electric power mutual-inductor polarity tester as claimed in claim 3, it is characterised in that: the wire clamp
Including the first collet, the second collet, the connecting shaft includes shaft sleeve, axle center cylinder, one end of shaft sleeve and the inner wall of cable-through hole
Be fixedly connected, the shaft sleeve be socketed in axle center cylinder outside, shaft sleeve and axle center cylinder between be equipped with torsional spring, one end of torsional spring with
Shaft sleeve connection, the other end of torsional spring connects with axle center cylinder, are fixed between shaft sleeve and axle center tin by bolt, the bolt and
Axle center cylinder connection, the drawstring are connect with bolt, and first collet is connect with shaft sleeve, second collet and axle center cylinder company
It connects.
5. a kind of active defense formula electric power mutual-inductor polarity tester as claimed in claim 4, it is characterised in that: the axle sleeve
Cylinder is equipped with lockhole, rotation mouth, and the lockhole is arranged by close end, and lockhole and bolt cooperate, and the end of second collet is worn
Overwinding transit is connect with the lateral wall of axle center cylinder.
6. a kind of active defense formula electric power mutual-inductor polarity tester as claimed in claim 5, it is characterised in that: the axle center
One end of cylinder is equipped with mounting post, and for the torsion spring set on connecting column, the inner wall of the other end of axle center cylinder is equipped with lockpin sleeve bucket, described
The side wall of axle center cylinder is equipped with pin hole, and the upper port of the lockpin sleeve bucket is aligned with pin hole out, and the bolt is set to lockpin sleeve
In bucket, spring is equipped between the lower end of bolt and the bottom of lockpin sleeve bucket, the bottom of lockpin sleeve bucket is equipped with outlet hole, the drawstring
It penetrates from outlet hole and is connect with bolt.
7. a kind of active defense formula electric power mutual-inductor polarity tester as claimed in claim 6, it is characterised in that: the bolt
Lower end be equipped with key seat, the inner wall of the key seat and lockpin sleeve bucket is slidably connected.
8. a kind of active defense formula electric power mutual-inductor polarity tester as described in claim 1, it is characterised in that: described to go out to sell
The inner wall in hole is equipped with stop collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653455.8A CN109633514B (en) | 2018-12-29 | 2018-12-29 | Active protection type polarity tester for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653455.8A CN109633514B (en) | 2018-12-29 | 2018-12-29 | Active protection type polarity tester for power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109633514A true CN109633514A (en) | 2019-04-16 |
| CN109633514B CN109633514B (en) | 2021-04-06 |
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ID=66056421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811653455.8A Active CN109633514B (en) | 2018-12-29 | 2018-12-29 | Active protection type polarity tester for power transformer |
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| Country | Link |
|---|---|
| CN (1) | CN109633514B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5396731B2 (en) * | 2008-03-27 | 2014-01-22 | 株式会社高岳製作所 | Test method for instrument transformer |
| CN203551720U (en) * | 2013-10-14 | 2014-04-16 | 国家电网公司 | Mutual inductor polarity testing device |
| CN206400047U (en) * | 2017-01-17 | 2017-08-11 | 国网青海省电力公司检修公司 | A kind of Current Transmit polarity test device |
| CN206945881U (en) * | 2017-05-19 | 2018-01-30 | 国网宁夏电力公司石嘴山供电公司 | Novel current transformer polarity tester |
| CN107942190A (en) * | 2017-11-17 | 2018-04-20 | 国网山东省电力公司淄博供电公司 | Measuring equipment electrified automatic alarm formula device for detecting polarity |
-
2018
- 2018-12-29 CN CN201811653455.8A patent/CN109633514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5396731B2 (en) * | 2008-03-27 | 2014-01-22 | 株式会社高岳製作所 | Test method for instrument transformer |
| CN203551720U (en) * | 2013-10-14 | 2014-04-16 | 国家电网公司 | Mutual inductor polarity testing device |
| CN206400047U (en) * | 2017-01-17 | 2017-08-11 | 国网青海省电力公司检修公司 | A kind of Current Transmit polarity test device |
| CN206945881U (en) * | 2017-05-19 | 2018-01-30 | 国网宁夏电力公司石嘴山供电公司 | Novel current transformer polarity tester |
| CN107942190A (en) * | 2017-11-17 | 2018-04-20 | 国网山东省电力公司淄博供电公司 | Measuring equipment electrified automatic alarm formula device for detecting polarity |
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| Publication number | Publication date |
|---|---|
| CN109633514B (en) | 2021-04-06 |
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