CN204720329U - A kind of insulated operating rod - Google Patents

A kind of insulated operating rod Download PDF

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Publication number
CN204720329U
CN204720329U CN201420750530.3U CN201420750530U CN204720329U CN 204720329 U CN204720329 U CN 204720329U CN 201420750530 U CN201420750530 U CN 201420750530U CN 204720329 U CN204720329 U CN 204720329U
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China
Prior art keywords
wire
current
circuit
operating rod
current detecting
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Active
Application number
CN201420750530.3U
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Chinese (zh)
Inventor
朱拓夫
周仁才
罗玉纯
林伟国
周磊
陈德炜
陈功
梁钱锋
胡元辉
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State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN201420750530.3U priority Critical patent/CN204720329U/en
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Abstract

The utility model discloses a kind of insulated operating rod, comprising: insulating bar and metallic operation head, also comprise: current detecting alarm module and securing member; Be connected with described metallic operation head, carried out sampling by line current and obtain current sample and compare with preset alarm threshold value exceeding the described current detecting alarm module that described alarm threshold value produces alarm signal, described current detecting alarm module has the isolation recesses suitable with wire shape; Described current detecting alarm module is fixed on the securing member on metallic operation head.The insulated operating rod that theres is provided of application the utility model, can judge line current size before carrying out grid switching operation, line current not in safe range time report to the police, cause operating personnel to watch out for, ensure that handling safety.

Description

A kind of insulated operating rod
Technical field
The utility model relates to back brake correlative technology field, particularly relates to a kind of insulated operating rod.
Background technology
Electric equipment is divided into operation, for subsequent use, maintenance three kinds of states, and the operation carried out from a kind of state-transition for another kind of state by equipment is grid switching operation.High-tension line such as 10 kilovolts of overhead transmission lines carries out grid switching operation need to use 10 kilovolts of insulated operating rods, be commonly called as " link rod ".
Some switchgears on high-tension line are provided with arc-control device, the arc energy that load current produces extinguish fast in arc-control device, can on-load operation, such as circuit breaker and on-load switch; And other switchgears are not owing to having arc-control device, the electric arc that load current produces is difficult to extinguish in atmosphere, the arc light produced likely is burnt the eyes of operating personnel, long electric arc may puncture porcelain vase to be caused and discharges over the ground, great threat is brought to operating personnel and equipment, therefore following load must be excised before operating this type of switchgear, and then carry out the operation of not on-load, as fuse switch and isolating switch.Especially needing first to cut off load when operating the switchgear on high-tension line when operating, owing to cannot judge on circuit, whether electric current exceedes safety value, being difficult to when carrying out grid switching operation with insulated operating rod ensure handling safety.
Utility model content
In view of this, main purpose of the present utility model is to provide a kind of insulated operating rod, judgement can be carried out to the size of current on circuit and report to the police, comprise: insulating bar and metallic operation head, also comprise:
Current detecting alarm module and securing member;
Be connected with described metallic operation head, carried out sampling by line current and obtain current sample and compare with preset alarm threshold value the described current detecting alarm module exceeding described alarm threshold value and carry out reporting to the police, described current detecting alarm module has the isolation recesses suitable with wire shape;
Described current detecting alarm module is fixed on the securing member on metallic operation head.
Preferably, described current detecting alarm module comprises:
The current sampling circuit of induction line electric current, described current sampling circuit is connected with described isolation recesses;
Sample current and presetting alarm threshold value are compared and obtains the CPU processing unit of alarm signal;
The alarm unit of reporting to the police is carried out after receiving alarm signal.
Preferably, described current detecting alarm module also comprises:
Biasing circuit, filter circuit and protective circuit;
Preferably, described CPU processing unit comprises CPU treatment circuit, and described alarm unit comprises warning circuit;
Described current sampling circuit, biasing circuit, filter circuit, protective circuit, CPU treatment circuit are connected successively with warning circuit;
Described current sampling circuit comprises inductance coil and the first resistance, and described first resistor coupled in parallel is between first wire and the second wire at described inductance coil two ends;
Described biasing circuit comprises the first power supply, the first electric capacity, the second resistance and the 3rd resistance, and the 3rd resistance connects described first power supply and described first wire, is connected on the first wire after described first electric capacity and the second resistor coupled in parallel;
Described filter circuit comprises the second electric capacity and the 4th resistance, described 4th resistant series on the second wire, described second Capacitance parallel connection between described first wire and the second wire, described second electric capacity and the first wire connecting place ground connection;
Described protective circuit comprises the first diode, the second diode and second source, described first diode connects described first wire and the second wire, electric current is the conducting direction of the first diode from the direction that the first wire flows to the second wire, second diode connects described second source and described second wire, is the communication direction of the second diode from described second source to the direction of the second wire;
Described CPU treatment circuit comprises A-D converter and analytic unit, and described A-D converter is connected with described second wire, and described analytic unit is connected with described A-D converter;
The base stage of described triode is connected with described output, the emitter grounding of described triode, and described alarm unit connects collector electrode and the 3rd power supply of described triode.
Preferably, described warning circuit is buzzer.
Preferably, described alarm unit is photoflash lamp.
Preferably, described insulated operating rod also comprises:
Be connected with described current detecting alarm module, check the selftest module whether described current detecting alarm module normally works.
The one insulation control rod that the utility model provides, the metallic operation head be connected with insulating bar is installed with current detecting alarm module with securing member, described current detecting alarm module has the isolation recesses suitable with wire shape, when wire embeds in the isolation recesses of described current detecting alarm module, current detecting alarm module gathers line current and obtains current sample, the current sample obtained and presetting alarm threshold value are compared, produce alarm signal to report to the police when described current sample exceedes described alarm threshold value, the insulated operating rod that application the utility model provides, can judge line current size before carrying out grid switching operation, line current not in safe range time report to the police, operating personnel are caused to watch out for, ensure that handling safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of a kind of insulated operating rod of the utility model;
Fig. 2 is the another structural representation of a kind of insulated operating rod of the utility model;
Fig. 3 is the another structural representation of a kind of insulated operating rod of the utility model;
Fig. 4 is the internal structure circuit diagram of a kind of insulated operating rod of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The purpose of this utility model is to provide a kind of insulated operating rod, as shown in Figure 1, is the left view of the utility model insulated operating rod specific embodiment, comprises: insulating bar 101 and metallic operation 102, also comprises:
Be connected with described metallic operation 102, carried out sampling by line current and obtain current sample and compare with preset alarm threshold value the described current detecting alarm module 103 exceeding described alarm threshold value and carry out reporting to the police, described current detecting alarm module 103 has the isolation recesses suitable with wire shape;
Described current detecting alarm module is fixed on the securing member 104 on metallic operation head.
The one insulation control rod that the present embodiment provides, when carrying out grid switching operation, staff grips described insulating bar 101 part, hook in the hole of switchgear or ring by metallic operation 102 and carry out back brake, the metallic operation that is connected with insulating bar 101 102 is installed with current detecting alarm module 103 with securing member 104, described current detecting alarm module 103 has the isolation recesses suitable with wire shape, when wire embeds in the isolation recesses of described current detecting alarm module 103, current detecting alarm module 103 gathers line current and obtains current sample, the current sample obtained and presetting alarm threshold value are compared, produce alarm signal to report to the police when described current sample exceedes described alarm threshold value, the insulated operating rod that application the present embodiment provides, can judge line current size before carrying out grid switching operation, line current not in safe range time report to the police, operating personnel are caused to watch out for, ensure that handling safety.
As shown in Figure 2, be the front view of the utility model insulated operating rod specific embodiment, described securing member 104 can be divided into securing member and lower securing member, is all fixedly installed on described metallic operation head by the upper and lower side of described current detecting alarm module 103.
As shown in Figure 3, be the vertical view of the utility model specific embodiment.
As shown in Figure 4, be the internal structure circuit diagram of the current detecting alarm module of the utility model insulated operating rod, described current detecting alarm module comprises:
Current sampling circuit, biasing circuit, filter circuit, protective circuit, CPU treatment circuit and warning circuit;
Foregoing circuit is integrated in described detection alarm module.
Described current sampling circuit, biasing circuit, filter circuit, protective circuit, CPU treatment circuit are connected successively with warning circuit;
Described current sampling circuit comprises inductance coil L1 and resistance R1, between the first wire that described resistance R1 is connected in parallel on described inductance coil two ends and the second wire;
Described biasing circuit comprises power supply VCC1, electric capacity C1, resistance R2 and resistance R3, and resistance R3 connects described power supply VCC1 and described first wire, is connected on the first wire after described electric capacity C1 is in parallel with resistance R2;
Described filter circuit comprises electric capacity C2 and resistance R4, and described resistance R4 is connected on the second wire, and described electric capacity C2 is connected in parallel between described first wire and the second wire, described electric capacity C2 and the first wire connecting place ground connection;
Described protective circuit comprises diode D1, diode D2 and power supply VCC2, described diode D1 connects described first wire and the second wire, electric current is the conducting direction of diode D1 from the direction that the first wire flows to the second wire, diode D2 connects described power supply VCC2 and described second wire, is the communication direction of diode D2 from described power supply VCC2 to the direction of the second wire;
Described CPU treatment circuit comprises A-D converter ADC and analytic unit, and described A-D converter ADC is connected with described second wire, and described analytic unit is connected with described A-D converter ADC;
Described warning circuit comprises triode Q1, alarm unit and power supply VCC3, and the base stage of described triode Q1 is connected with described output, the emitter grounding of described triode Q1, and described alarm unit connects collector electrode and the power supply VCC3 of described triode Q1.
After the inductance coil L1 of described current sampling circuit is positioned at the isolation recesses of described current detecting warning device, when isolation recesses insertion wire, line current is obtained by current sampling circuit induction, through biasing circuit bias pressure, after pass through filter circuit, filter circuit filtering obtains direct current, again through protective circuit process, collect sample current, the analog circuit signal digital that A-D converter ADC in CPU treatment circuit will obtain, the alarm threshold value pre-seted is had in analytic unit, alarm signal is produced after analytic unit judgement sample current value exceedes alarm threshold value, the alarm unit of warning circuit is reported to the police, described alarm unit can be buzzer or photoflash lamp, if alarm unit is buzzer, when reporting to the police, produce alarm sound signal, if alarm unit is photoflash lamp, when reporting to the police, produce warning light signal, as glimmered.
A kind of embodiment of the present utility model, the alarm threshold value of reporting to the police can have multiple, as do not reported to the police when sample current is less than the first alarm threshold value, the warning of the first alert frequency is carried out when sample current is greater than the first alarm threshold value and is less than the second alarm threshold value, the warning of the second alert frequency is carried out when being greater than the second alarm threshold value and be less than the 3rd alarm threshold value, the warning of the 3rd alert frequency is carried out when being greater than the 3rd alarm threshold value, occurrence such as electric current can be set be less than 0.1 ampere and do not report to the police for non-sampling configuration, within 2 seconds, once report to the police to 5 amperes for safe mode for 0.1 ampere, electric current is on-warning mode between 5 amperes to 20 amperes, within 0.5 second, once report to the police, electric current be greater than 20 amperes for limit risk, within 0.2 second, once report to the police, concrete time of fire alarming and current value can need setting according to scene, the current detecting alarm method of the present embodiment, the size of current value can be detected before carrying out grid switching operation, the warning of different frequency is carried out according to the scope at size of current place, alarm sound or warning light signal can be sent to distinguish the level of security of circuit.
Another kind of embodiment of the present utility model, insulated operating rod is except comprising insulating bar, metallic operation head, current detecting alarm module and securing member, also comprise the selftest module be connected with described current detecting alarm module, insulated operating rod is made to have self-checking function, by being adjusted to self-inspection state, the multiplying power of amplification input signal, with current signal generator with the use of, insulated operating rod is judged whether before formal use can normal operation.
The insulating bar of the present embodiment, solves overhead transmission line and is difficult to detect this problem of electric current, carry out current detecting before the procedure, and current sensing means need not be fixedly mounted, operating personnel can carry out back brake, flexible operation with same instrument after detection electric current, save the time of operation.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above insulating bar provided by the utility model is described in detail, apply specific case herein to set forth principle of the present utility model and execution mode, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (7)

1. an insulated operating rod, comprising: insulating bar and metallic operation head, is characterized in that, also comprise:
Current detecting alarm module and securing member;
Be connected with described metallic operation head, carried out sampling by line current and obtain current sample and compare with preset alarm threshold value the described current detecting alarm module exceeding described alarm threshold value and carry out reporting to the police, described current detecting alarm module has the isolation recesses suitable with wire shape;
Described current detecting alarm module is fixed on the securing member on metallic operation head.
2. insulated operating rod according to claim 1, is characterized in that, described current detecting alarm module comprises:
The current sampling circuit of induction line electric current, described current sampling circuit is connected with described isolation recesses;
Sample current and presetting alarm threshold value are compared and obtains the CPU processing unit of alarm signal;
The alarm unit of reporting to the police is carried out after receiving alarm signal.
3. insulated operating rod according to claim 2, is characterized in that, described current detecting alarm module also comprises:
Biasing circuit, filter circuit and protective circuit.
4. insulated operating rod according to claim 3, is characterized in that, described CPU processing unit comprises CPU treatment circuit, and described alarm unit comprises warning circuit;
Described current sampling circuit, biasing circuit, filter circuit, protective circuit, CPU treatment circuit are connected successively with warning circuit;
Described current sampling circuit comprises inductance coil and the first resistance, and described first resistor coupled in parallel is between first wire and the second wire at described inductance coil two ends;
Described biasing circuit comprises the first power supply, the first electric capacity, the second resistance and the 3rd resistance, and the 3rd resistance connects described first power supply and described first wire, is connected on the first wire after described first electric capacity and the second resistor coupled in parallel;
Described filter circuit comprises the second electric capacity and the 4th resistance, described 4th resistant series on the second wire, described second Capacitance parallel connection between described first wire and the second wire, described second electric capacity and the first wire connecting place ground connection;
Described protective circuit comprises the first diode, the second diode and second source, described first diode connects described first wire and the second wire, electric current is the conducting direction of the first diode from the direction that the first wire flows to the second wire, second diode connects described second source and described second wire, is the communication direction of the second diode from described second source to the direction of the second wire;
Described CPU treatment circuit comprises A-D converter and analytic unit, and described A-D converter is connected with described second wire, and described analytic unit is connected with described A-D converter;
The base stage of described triode is connected with described output, the emitter grounding of described triode, and described alarm unit connects collector electrode and the 3rd power supply of described triode.
5. insulated operating rod according to claim 2, is characterized in that, described warning circuit is buzzer.
6. insulated operating rod according to claim 2, is characterized in that, described alarm unit is photoflash lamp.
7. insulated operating rod according to claim 1, is characterized in that, also comprises:
Be connected with described current detecting alarm module, check the selftest module whether described current detecting alarm module normally works.
CN201420750530.3U 2014-12-03 2014-12-03 A kind of insulated operating rod Active CN204720329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420750530.3U CN204720329U (en) 2014-12-03 2014-12-03 A kind of insulated operating rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420750530.3U CN204720329U (en) 2014-12-03 2014-12-03 A kind of insulated operating rod

Publications (1)

Publication Number Publication Date
CN204720329U true CN204720329U (en) 2015-10-21

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Application Number Title Priority Date Filing Date
CN201420750530.3U Active CN204720329U (en) 2014-12-03 2014-12-03 A kind of insulated operating rod

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680839A (en) * 2017-11-06 2018-02-09 国家电网公司 Novel insulating operating rod and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680839A (en) * 2017-11-06 2018-02-09 国家电网公司 Novel insulating operating rod and device

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