CN201149954Y - Status indicator with clearance line arrester - Google Patents
Status indicator with clearance line arrester Download PDFInfo
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- CN201149954Y CN201149954Y CNU2008200655840U CN200820065584U CN201149954Y CN 201149954 Y CN201149954 Y CN 201149954Y CN U2008200655840 U CNU2008200655840 U CN U2008200655840U CN 200820065584 U CN200820065584 U CN 200820065584U CN 201149954 Y CN201149954 Y CN 201149954Y
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- 239000003990 capacitor Substances 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 14
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 3
- 150000004706 metal oxides Chemical class 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000003449 preventive effect Effects 0.000 abstract 4
- 238000007599 discharging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a stator indicator of a gap line gap lighting arrestor, which relates to a lightning-proof preventive device. The preventive device adopts the structure that an energy obtaining part (1) is connected on the earth wire of the lighting arrestor in series, and a low-current counting circuit (2), a heavy current counting circuit (3) and an alarm indicating circuit (4) are respectively connected with the corresponding ends of the energy obtaining part (1), to obtain energy; the heavy current counting circuit (3) is connected with the alarm indicating circuit (4), and the heavy current counting circuit (3) provides a switching control signal for the alarm indicating circuit (4); the alarm indicating circuit (4) is connected with a alarm indicating mechanism (5), and the action of the alarm indicating mechanism (5) is controlled; a counter zero clearing mechanism (6) is connected with the heavy current counting circuit (3), to realize to clear zero. The preventive device relates to a passive device, and has the advantages of practicability and economical efficiency, long service life and strong visibility; the preventive device is suitable for the monitoring on-line of the gap line metal oxide arrestor with 35 KV and above.
Description
Technical field
The utility model relates to a kind of lightning protection equipment; Relate in particular to a kind of band gap leakage conductor positioning indicator, specifically, relate to a kind of indicating device that the running status of band gap leakage conductor is monitored.
Background technology
Each department power office all promotes the use of the lightning withstand level that metal oxide arrester improves transmission line on transmission line both at home and abroad at present, reduces the tripping rate with lightning strike of circuit, thereby improves power supply reliability, satisfies the requirement of commercial power; Therefore, leakage conductor has development and application prospect widely.
The critical role of lightning arrester in electric power system requires the lightning arrester operate as normal is given security, and this monitors the state whether lightning arrester can normally move with regard to requiring.
The research in forward position at present is generally by the online detection of arrester without gaps leakage current being judged the ageing state of lightning arrester, and some achievement in research has automatic release unit even fault indication function.For the band gap leakage conductor, newer corresponding research has by the discharge time of various electric current sections being done corresponding record and being shown with the LED pipe.Shortcoming is that power supply need additionally be provided, and will change primary cell one or two years.
Summary of the invention
The purpose of this utility model is exactly to fill up the burst of band gap lightning arrester monitoring, ensure the non-stop run of circuit critical positions lightning arrester, in conjunction with passive mechanical type discharge counter, provide and to satisfy a kind of band gap leakage conductor positioning indicator that can monitor the lightning arrester operation conditions that national standard requires.This indicating device can provide the remaining life of lightning arrester, and tangible faulty indication is arranged when monitored lightning arrester satisfies alarm conditions, and the prompting track walker checks lightning arrester or changes.
The purpose of this utility model is achieved in that
The utility model comprises gets energy parts, little electric current counting circuit, big electric current counting circuit, alarm indicating circuit, sum counter zero clearing mechanism of alarm indicating mechanism etc.The conducting of output signal order alarm indicating circuit made the action of alarm indicating mechanism when its special character was that big galvanometer rolling counters forward reaches certain value, and the sign lightning arrester has damaged to be needed to change.
Get can parts be current transformer, the coil by the magnetic core and the different numbers of turn provides the work energy for three branch roads according to certain ratio switching energy.
Little electric current counting circuit is made up of protection component piezo-resistance, rectifier bridge, capacitor and number message register; Circuit links to each other with the 1st secondary coil of instrument transformer, and when the primary coil electric current surpassed 100A, this counter accumulated counts also kept.
Big electric current counting circuit is regulated resistance, rectifier bridge, capacitor and pointer electromagnetic counter by protection component piezo-resistance, dividing potential drop and is formed; Circuit links to each other with the 2nd secondary coil of instrument transformer, and when the primary coil electric current surpassed 20kA, this counter accumulated counts also kept.
The alarm indicating circuit is made up of protection component piezo-resistance, rectifier bridge, capacitor, discharge resistance, control switch mechanism and electromagnet coil; Circuit links to each other with the 3rd secondary coil of instrument transformer, magnetic switch closure when big electric current counter reaches predetermined value, and the alarm indicating circuit is connected.
Alarm indicating mechanism is by falling board, spacingly fall board, falling board case, spacing magnet, electromagnet armature and resetting device and form; Connect when the alarm indicating circuit, fall board.Manually will fall board during recovery and advance case, and press reset button and reset.
Counter O reset mechanism is made up of swingle and coaxial with it rotating vane; Pawn board and drop back maintenance or other reason need be with counter O reset the time, the turn knob repeatedly makes zero counter.
From the above, when this positioning indicator is connected with leakage conductor, little electric current counter shows total discharge time of lightning arrester, and big electric current counter shows that the lightning arrester discharging current surpasses the number of times of 20kA.When big electric current number of times surpassed predetermined value, board fell in alarm indicating mechanism, was convenient to the track walker and checked.
The utlity model has following advantage and good effect:
1, the discharge counter that satisfies the GB regulation is counted current sensitivity, nominal current and residual voltage requirement for restriction under 8/20 μ s waveform parameter.
2, all the loop does not have power supply, is inactive component, does not need the cycle to change power supply, has practicality and economy.
3, do not bear voltage under the off position, electric component is aging less, and service life is longer.
4, faulty indication is obvious, and is visual strong.Have reset function, can reuse.
5, the utility model is applicable to the monitoring of 35kV and above band gap circuit metal oxide arrester.
Description of drawings
Fig. 1 is the utility model block diagram;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is the control switch structural scheme of mechanism of alarm indicating circuit;
Fig. 4 is an alarm indicating mechanism schematic diagram;
Fig. 5 falls the board structural scheme of mechanism;
Fig. 6 is the counter O reset structural scheme of mechanism;
Fig. 7 is the panel schematic diagram.
Wherein:
1-gets the energy parts;
The N-primary coil; N1, N2, N3-the 1st, 2,3 secondary coils.
The little electric current counting circuit of 2-;
MOV1-the 1st piezo-resistance;
D1-the 1st rectifier bridge;
C1-the 1st capacitor;
The little electric current counter of JS1-(number message register);
The little electric current counter of JS1-1-registration window.
The big electric current counting circuit of 3-;
MOV2-the 2nd piezo-resistance;
The R1-divider resistance;
D2-the 2nd rectifier bridge;
C2-the 2nd capacitor;
The big electric current counter of JS2-(pointer electromagnetic counter);
The big electric current counter arm of JS2-1-;
The big electric current counter of JS2-2-dial plate;
The big electric current counter of JS2-3-armature.
4-alarms indicating circuit;
MOV3-the 3rd piezo-resistance;
D3-the 3rd rectifier bridge;
C3-the 3rd capacitor;
The R2-discharge resistance;
The L-electromagnet coil;
4.1-control switch mechanism;
M1, M2-the 1st, 2 strong magnets;
G1, G2-the 1st, 2 tongue tubes.
5-alarms indicating mechanism;
5.1-fall board mechanism;
5.1.1-fall the board case;
5.1.2-spacingly fall board;
5.1.3-the 1st cross bar;
5.1.4-case hole;
5.1.5-fall board;
5.1.6-the 2nd cross bar;
5.1.7-fall the board hole;
5.1.8-spacing magnet;
5.2-electromagnet;
5.3-electromagnet armature;
5.4-supporting mechanism;
5.5-resetting device;
5.5.1-resetting block;
5.5.2-spring;
5.5.3-snap ring;
5.5.4-reset button.
6-counter O reset mechanism;
6.1-rotating vane;
6.2-swingle;
6.3-bearing holder (housing, cover);
6.4-bearing;
6.5-knob.
The 7-screw rod.
The 8-insulator.
Embodiment:
Illustrate below in conjunction with accompanying drawing and the detailed example of enforcement:
One, general structure
As Fig. 1,2, the utility model comprises gets energy parts (1), little electric current counting circuit (2), big electric current counting circuit (3), alarm indicating circuit (4), alarm sum counter zero clearing mechanism of indicating mechanism (5) (6);
Get and can be connected on the arrester ground line by parts (1), little electric current counting circuit (2), big electric current counting circuit (3) and alarm indicating circuit (4) can be connected by each end of parts (1) with getting respectively, obtain energy;
Big electric current counting circuit (3) is connected with alarm indicating circuit (4), for alarm indicating circuit (4) provides switching signal;
Alarm indicating circuit (4) is connected with alarm indicating mechanism (5), control alarm indicating mechanism (5) action;
Counter O reset mechanism (6) is connected with big electric current counting circuit (3), realizes zero clearing.
Operation principle of the present utility model is:
When lightning arrester discharged, discharging current flows through to be got and can make little electric current counting circuit (2), big electric current counting circuit (3) and alarm indicating circuit (4) obtain energy by parts (1).The little electric current counter (JS1) of little electric current counting circuit (2) action accumulated counts when discharging current surpasses 100A; The big electric current counter (JS2) of big electric current counting circuit (3) action accumulated counts when discharging current surpasses 20kA, when counter (JS2) counts is added to 18 times, electromagnet coil (L) and the 3rd capacitor (C3) are connected in the alarm indicating circuit (4), electromagnet armature (5.3) withdrawal, fall board (5.1.5) and drop out, alarm is finished.
In the time of reusable, by counter O reset mechanism (6) with big electric current counter (JS2) zero clearing; To fall board (5.1.5) with hand and vertically push board case (5.1.1) to the top, the another hand is pressed reset button (5.5.3) simultaneously, has just finished and has fallen resetting of board (5.1.5).This indicating device can be reused after all resetting.
Two, each functional block structure
1, getting can parts (1)
As Fig. 2, get can parts (1) be a kind of current transformer, comprise magnetic core and primary coil (N) and the 1st, 2,3 secondary coils (N1, N2, N3) on the magnetic core; Coil by the magnetic core and the different numbers of turn provides the work energy for three branch roads according to certain ratio switching energy.
2, little electric current counting circuit (2)
As Fig. 2, little electric current counting circuit (2) is made up of the 1st rectifier bridge (D1), the 1st piezo-resistance (MOV1), the 1st capacitor (C1) and little electric current counter (JS1); The 1st secondary (N1) and the 1st piezo-resistance (MOV1) of energy parts (1) got in the interchange end parallel connection of the 1st rectifier bridge (D1); The dc terminal of the 1st rectifier bridge (D1) is in parallel with the 1st capacitor (C1) and little electric current counter (JS1) respectively.
Its operation principle is: give the 1st capacitor (C1) charging from the electric current that the 1st secondary coil (N1) of getting energy parts (1) is responded to after the 1st rectifier bridge (D1) rectification, give little electric current counter (JS1) discharge then, little electric current counter (JS1) accumulated counts, and show; When electric current is excessive, the 1st piezo-resistance (MOV1) action, the increase of deboost.
3, big electric current counting circuit (3)
Big electric current counting circuit (3) is the same with operation principle with the structure of little electric current counting circuit (2).
Specifically:
As Fig. 2, big electric current counting circuit (3) is made up of the 2nd rectifier bridge (D2), the 2nd piezo-resistance (MOV2), divider resistance (R1), the 2nd capacitor (C2) and big electric current counter (JS2); In parallel with the 2nd secondary coil (N2) of getting energy parts (1) again behind the interchange end series connection divider resistance (R1) of the 2nd rectifier bridge (D2), the interchange end of the 2nd rectifier bridge (D2) is also in parallel with the 2nd piezo-resistance (MOV2); The dc terminal of the 2nd rectifier bridge (D2) is in parallel with the 2nd capacitor (C2) and big electric current counter (JS2) respectively.
Its operation principle is: from get can parts the voltage of the 2nd secondary coil (N2) induction of (1) after divider resistance (R1) is got part voltage, electric current is given the 2nd capacitor (C2) charging through the 2nd rectifier bridge (D2) rectification, and by big electric current counter (JS2) discharge, the pointer of big electric current counter (JS2) rotates an angle accumulated counts, and shows.
The effect of divider resistance (R1) is to get part voltage, makes that big electric current counter (JS2) is just counted when the lightning arrester discharging current surpasses 20kA.
Little electric current counter (JS1) is selected 404 type counters for use;
Big electric current counter (JS2) is selected JJ-8 type counter for use.
4, alarm indicating circuit (4)
As Fig. 2, alarm indicating circuit (4) is made up of the 3rd rectifier bridge (D3), the 3rd capacitor (C3), discharge resistance (R2), control switch mechanism (4.1) and electromagnet coil (L);
The interchange end of the 3rd rectifier bridge (D3) is in parallel with the 3rd secondary coil (N3) and the 3rd piezo-resistance (MOV3) of getting energy parts (1) respectively; The dc terminal of the 3rd rectifier bridge (D3) is in parallel with the 3rd capacitor (C3) and discharge resistance (R2) respectively, and control switch mechanism (4.1) back of connecting again is in parallel with electromagnet coil (L).
As Fig. 3, described control switch mechanism (4.1) is made up of the 1st, 2 tongue tubes (G1, G2) and the 1st, 2 strong magnets (M1, M2) of mutual series connection; 1st, 2 tongue tubes (G1, G2) are separately positioned on the digit position of big electric current counter dial plate (JS2-2) reverse side correspondence, and the 1st, 2 strong magnets (M1, M2) are separately positioned on two big electric current counter arms (JS2-1).
Its operation principle is:
Give the 3rd capacitor (C3) charging from the electric current that the 3rd secondary coil (N3) of getting energy parts (1) is responded to after the 3rd rectifier bridge (D3) rectification: when control switch mechanism (4.1) disconnection, the voltage on the 3rd capacitor (C3) bleeds off through discharge resistance (R2); When control switch mechanism (4.1) closure, the 3rd capacitor (C3) is through electromagnet coil (L) discharge, and electromagnet armature (5.3) shrinks.
The closure of control switch mechanism (4.1) is by the 1st, 2 strong magnets (M1, the M2) control that is fixed on two big electric current counter arms (JS2-1); When big electric current counter arm (JS2-1) forwards the position of the 1st, 2 tongue tubes (G1, G2) correspondence to, the 1st, 2 tongue tubes (G1, G2) closure, the conducting of alarm indicating circuit, otherwise not conducting.
5, alarm indicating mechanism (5)
As Fig. 4, Fig. 5, alarm indicating mechanism (5) forms by falling board mechanism (5.1), electromagnet (5.2), electromagnet armature (5.3), supporting mechanism (5.4) and resetting device (5.5);
Fall board mechanism (5.1), electromagnet (5.2), electromagnet armature (5.3) and the resetting device (5.5) that are arranged on the supporting mechanism (5.4) are connected successively;
Describedly fall board mechanism (5.1) by falling board case (5.1.1), spacingly fall board (5.1.2), the 1st cross bar (5.1.3), case hole (5.1.4), fall board (5.1.5), the 2nd cross bar (5.1.6), falling board hole (5.1.7) and spacing magnet (5.1.8) is formed; Spacingly fall the top that board (5.1.2) occupy board case (5.1.1) inner space, the 1st cross bar (5.1.3) runs through the spacing perpendicular slotted hole that falls on the board (5.1.2); Fall the bottom that board (5.1.5) occupy board case (5.1.1) inner space, the 2nd cross bar (5.1.6) runs through to fall the perpendicular slotted hole in the middle of the board (5.1.5), and the bottom of falling board (5.1.5) is provided with board hole (5.1.7); On two sidewalls that fall board case (5.1.1) middle part, be respectively arranged with case hole (5.1.4) and spacing magnet (5.1.8).
Described resetting device (5.5) is made up of resetting block (5.5.1), spring (5.5.2), snap ring (5.5.3) and reset button (5.5.4); Resetting block (5.5.1), snap ring (5.5.3) and reset button (5.5.4) are connected successively, and spring (5.5.2) is stuck on the reset button (5.5.4).
The operation principle of alarm indicating mechanism (5) is:
When alarm indicating circuit (4) work, and electromagnet armature (5.3) withdrawal, the attraction that breaks away from spacing magnet (5.1.8), the board (5.1.5) that falls that hangs on the spacing armature (5.1.8) drops, and tangles on the 2nd cross bar (5.1.6) of case (5.1.1); That was fallen originally simultaneously that board (5.1.5) heads on spacingly falls board (5.1.2) and drops, and hangs on the 1st cross bar (5.1.3) at case (5.1.1) middle part; This moment is spacing falls board (5.1.2) every between spacing magnet (5.1.8) and electromagnet armature (5.3).
When resetting, will fall board (5.1.5) and push in the case (5.1.1), this moment is spacing to be fallen board (5.1.2) and is fallen the top that board (5.1.5) back into case (5.1.1); Press reset button (5.5.4), snap ring (5.5.3) compression spring (5.5.2), resetting block (5.5.1) promotes electromagnet armature (5.3), makes it pass case hole (5.1.4) and falls perpendicular slotted hole and spacing magnet (5.1.8) attraction on the board (5.1.5), finishes resetting of board.Decontrol reset button (5.5.4), spring (5.5.2) flicks, and resetting block (5.5.1) falls, and snap ring (5.5.3) is stuck in the exit of reset button (5.5.4).
Spacingly fall that board (5.1.2) can prevent to shake the misoperation that causes or press reset button (5.5.4) prematurely when resetting and the misoperation that causes.
6, counter O reset mechanism (6)
As figure (6), counter O reset mechanism (6) is made up of rotating vane (6.1), swingle (6.2), bearing holder (housing, cover) (6.3), bearing (6.4) and knob (6.5);
Rotating vane (6.1), swingle (6.2), bearing (6.4) and knob (6.5) are connected successively.
Its operation principle is: turn turn-knob (6.5), swingle (6.2) drives rotating vane (6.1) and rotates, and rotating vane (6.1) the big electric current counter armature of bump (JS2-3) action counting is up to counter O reset.
Three, panel and other disposed outside
As figure (7), two display parts are arranged on the panel: one is little electric current counter registration window (JS1-1); Another is big electric current counter arm (JS2-1) and big electric current counter dial plate (JS2-2); Big electric current counter O reset knob (6.5) and alarm indicating mechanism's reset button (5.5.4) are all in the bottom; Fall the board outlet also in the instrument bottom; Panel back has the screw rod retainer instrument of two Φ 12 on shaft tower, the double ground wire of doing; Fix the screw rod (7) of a Φ 12 as high-voltage connection by insulator (8) on the panel right flank.
Claims (7)
1, a kind of band gap leakage conductor positioning indicator is characterized in that:
Comprise and get energy parts (1), little electric current counting circuit (2), big electric current counting circuit (3), alarm indicating circuit (4), alarm sum counter zero clearing mechanism of indicating mechanism (5) (6);
Get and can be connected on the arrester ground line by parts (1), little electric current counting circuit (2), big electric current counting circuit (3) and alarm indicating circuit (4) can parts (1) corresponding end be connected with getting respectively;
Big electric current counting circuit (3) is connected with alarm indicating circuit (4);
Alarm indicating circuit (4) is connected with alarm indicating mechanism (5);
Counter O reset mechanism (6) is connected with big electric current counting circuit (3).
2, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Get can parts (1) be a kind of current transformer, comprise magnetic core and primary coil (N) and the 1st, 2,3 secondary coils (N1, N2, N3) on the magnetic core.
3, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Little electric current counting circuit (2) is made up of the 1st rectifier bridge (D1), the 1st piezo-resistance (MOV1), the 1st capacitor (C1) and little electric current counter (JS1); The 1st secondary coil (N1) and the 1st piezo-resistance (MOV1) of energy parts (1) got in the interchange end parallel connection of the 1st rectifier bridge (D1); The dc terminal of the 1st rectifier bridge (D1) is in parallel with the 1st capacitor (C1) and little electric current counter (JS1) respectively.
4, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Big electric current counting circuit (3) is made up of the 2nd rectifier bridge (D2), the 2nd piezo-resistance (MOV2), divider resistance (R1), the 2nd capacitor (C2) and big electric current counter (JS2); In parallel with the 2nd secondary coil (N2) of getting energy parts (1) again behind the interchange end series connection divider resistance (R1) of the 2nd rectifier bridge (D2), the interchange end of the 2nd rectifier bridge (D2) is also in parallel with the 2nd piezo-resistance (MOV2); The dc terminal of the 2nd rectifier bridge (D2) is in parallel with the 2nd capacitor (C2) and big electric current counter (JS2) respectively.
5, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Alarm indicating circuit (4) is made up of the 3rd rectifier bridge (D3), the 3rd capacitor (C3), discharge resistance (R2), control switch mechanism (4.1) and electromagnet coil (L);
The interchange end of the 3rd rectifier bridge (D3) is in parallel with the 3rd secondary coil (N3) and the 3rd piezo-resistance (MOV3) of getting energy parts (1) respectively; The dc terminal of the 3rd rectifier bridge (D3) is in parallel with the 3rd capacitor (C3) and discharge resistance (R2) respectively, and control switch mechanism (4.1) back of connecting again is in parallel with electromagnet coil (L);
Described control switch mechanism (4.1) is made up of the 1st, 2 tongue tubes (G1, G2) and the 1st, 2 strong magnets (M1, M2) of mutual series connection; 1st, 2 tongue tubes (G1, G2) are separately positioned on the digit position of big electric current counter dial plate (JS2-2) reverse side correspondence, and the 1st, 2 strong magnets (M1, M2) are separately positioned on two big electric current counter arms (JS2-1).
6, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Alarm indicating mechanism (5) forms by falling board mechanism (5.1), electromagnet (5.2), electromagnet armature (5.3), supporting mechanism (5.4) and resetting device (5.5);
Fall board mechanism (5.1), electromagnet (5.2), electromagnet armature (5.3) and the resetting device (5.5) that are arranged on the supporting mechanism (5.4) are connected successively;
Describedly fall board mechanism (5.1) by falling board case (5.1.1), spacingly fall board (5.1.2), the 1st cross bar (5.1.3), case hole (5.1.4), fall board (5.1.5), the 2nd cross bar (5.1.6), falling board hole (5.1.7) and spacing magnet (5.1.8) is formed; Spacingly fall the top that board (5.1.2) occupy board case (5.1.1) inner space, the 1st cross bar (5.1.3) runs through the spacing perpendicular slotted hole that falls on the board (5.1.2); Fall the bottom that board (5.1.5) occupy board case (5.1.1) inner space, the 2nd cross bar (5.1.6) runs through to fall the perpendicular slotted hole in the middle of the board (5.1.5), and the bottom of falling board (5.1.5) is provided with board hole (5.1.7); On two sidewalls that fall board case (5.1.1) middle part, be respectively arranged with case hole (5.1.4) and spacing magnet (5.1.8);
Described resetting device (5.5) is made up of resetting block (5.5.1), spring (5.5.2), snap ring (5.5.3) and reset button (5.5.4); Resetting block (5.5.1), snap ring (5.5.3) and reset button (5.5.4) are connected successively, and spring (5.5.2) is stuck on the reset button (5.5.4).
7, by the described a kind of band gap leakage conductor positioning indicator of claim 1, it is characterized in that:
Counter O reset mechanism (6) is made up of rotating vane (6.1), swingle (6.2), bearing holder (housing, cover) (6.3), bearing (6.4) and knob (6.5);
Rotating vane (6.1), swingle (6.2), bearing (6.4) and knob (6.5) are connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200655840U CN201149954Y (en) | 2008-02-01 | 2008-02-01 | Status indicator with clearance line arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200655840U CN201149954Y (en) | 2008-02-01 | 2008-02-01 | Status indicator with clearance line arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149954Y true CN201149954Y (en) | 2008-11-12 |
Family
ID=40117725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200655840U Expired - Lifetime CN201149954Y (en) | 2008-02-01 | 2008-02-01 | Status indicator with clearance line arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149954Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237124B (en) * | 2008-02-01 | 2012-04-25 | 武汉水院电气有限责任公司 | Status indicator for gap line arrester |
| CN102818961A (en) * | 2012-09-05 | 2012-12-12 | 中国超高压输变电建设公司 | Lightning energy-taking device for lightning arrester monitoring device |
-
2008
- 2008-02-01 CN CNU2008200655840U patent/CN201149954Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237124B (en) * | 2008-02-01 | 2012-04-25 | 武汉水院电气有限责任公司 | Status indicator for gap line arrester |
| CN102818961A (en) * | 2012-09-05 | 2012-12-12 | 中国超高压输变电建设公司 | Lightning energy-taking device for lightning arrester monitoring device |
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