CN2387545Y

CN2387545Y - 330KV-500 KV portable double-sounding double-light high voltage a. c. electroscope

Info

Publication number: CN2387545Y
Application number: CN 99219266
Authority: CN
Inventors: 李书永
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-13
Filing date: 1999-08-13
Publication date: 2000-07-12
Anticipated expiration: 2009-08-13

Abstract

The utility model discloses a 330KV-500KV portable double-sound and double-light high-voltage A. C. electroscope. The electroscope is mainly composed of a test bar part and an indicator part, wherein, the indicator part is arranged on the front end of the test bar, and the indicator part is mainly composed of a probe, a shell body, A. C. start-up circuits NJ, C [1] and R [1] which are arranged in the shell body, function converting circuits RL and BG [1]-BG [3], an electronic switch IC [1], acoustic-optic electric circuits IC [2] and IC [3] and acoustic-optic output circuits HA and LDE which are arranged on the lower end surface of the shell body and a self-checking circuit AN. The utility model has the advantages of convenience for carrying, simple field operation, visual indication for judging whether equipment have voltage alarm or not, self-checking function and anti-jamming function.

Description

The two light high-voltage alternating electroscopes of the portable alliteration of 330KV-500KV

The utility model belongs to the AC current detector technical field, and what relate generally to is the two light high-voltage alternating electroscopes of the portable alliteration of a kind of 330KV-500KV.

Electric system is when electrical network power transmission and transforming equipment interruption maintenance, for the safe operation that guarantees electrical network and operating personnel's safety must be observed the first electrical verification regulation that could work of ground connection then.And electrical verification on the power transmission and transformation charging equipment must be used relevant voltage grade and qualified electroscope, and this regulation is even more important during to 330-500KV power transmission and transforming equipment interruption maintenance.At present, electrical verification is to utilize insulation rod to come contact electrification equipment on the 330-500KV power transmission and transforming equipment, have or not the discharge acousto-optic to come on the affirmation equipment no-voltage is arranged according to contacting moment, though this electricity-testing method is simple, but the running time is long, and determines that under sunburst and bad weather conditions power transmission and transforming equipment has no-voltage very difficult.The domestic in recent years enterprise's reference external experience that has develops the method for utilization measurement electric transmission line isolator spread voltage or the method for induction judges that transmission line of electricity has no-voltage, yet this electricity-testing method not only execute-in-place is loaded down with trivial details, judgment device has no-voltage very not directly perceived, can not survey full voltage etc., and its limitation is also arranged in practicality, only can be applied to transmission line of electricity.In addition, this electroscope is operated in the extra-high voltage magnetic field, also exists electrostatic induction, corona noise to disturb problems such as comparatively serious.

The purpose of this utility model promptly produces thus, propose that a kind of execute-in-place is convenient and simple, judgment device has the no-voltage indication directly perceived, the two light high-voltage alternating electroscopes of the portable alliteration of 330KV-500KV that possess self-checking function and anti-interference function, this electroscope both can use on converting equipment, also can use on transmission line of electricity.

For achieving the above object, the utility model is achieved through the following technical solutions: it is made of reference test bar part and indicator part, and the reference test bar part is connect by the more piece socket and telescopic insulation tube is formed; Indicator part is fixed on the front end of reference test bar, and it is by probe, housing, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃, acousto-optic output circuit HA, LDE and the self-checking circuit AN that is serially connected on the function conversion circuit form, probe stationary is in the upper end of housing, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃Be arranged in the housing after adopting double screen fraud technology, acousto-optic electricity output circuit HA, LDE and self-checking circuit AN are arranged on the lower surface of housing, and the light signal that the neon tube NJ in the AC starting circuit sends is through function conversion circuit RL, BG ₁-BG ₃Light signal is converted to electric signal removes to control electronic switch IC ₁, guide sound optoelectronic circuit IC then ₂, IC ₃Drive acousto-optic output circuit HA, LDE and send sound and light signal.

The utility model reasonable in design, easy to carry, execute-in-place is simple.Its principle is to utilize stray current to change light into, starts the acousto-optic electronic alarm circuit through the photoelectricity coupling, utilizes to have or not acousto-optic to judge whether charging equipment is charged, and indication is very directly perceived so it is reported to the police.Because the high-voltage alternating electroscope will make electroscope indication operate as normal under the situation of UHV (ultra-high voltage) magnetic field, must solve the interference of UHV (ultra-high voltage) magnetic field and corona to the acousto-optic indicator, the utility model has taked following technical measures to solve the interference problem of electroscope indicator in the extra-high voltage magnetic field environment for this reason: one, acousto-optic electronic circuit take the dual shield technology to prevent the intrusion of UHV (ultra-high voltage) magnetic field and corona undesired signal; Its two, the defence line, second road of taking the capacitance-resistance isolation circuit to invade to acousto-optic circuit as anti-tampering signal; Its three, adopt electricity, light to isolate, i.e. electricity consumption, light conversion are controlled the double photoelectricity path of electroscope indicator.The high voltage electroscope indicator is worked in the defeated change equipment of 330KV-500KV, because voltage height, the distance on electrified body and grounding body or ground is big, according to rules in 5-12 rice scope, the general sound and light signal in big like this space is difficult to satisfy the requirement of using, for this reason the utility model adopt the voltage sounding component and in housing the special sound-aid cavity of design strengthen sound and optic signal, satisfied ultra-high voltage environment, the space is huge and the needs of noise.

The utility model has following accompanying drawing:

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the utility model shell structure synoptic diagram.

Accompanying drawing 3 is the utility model circuit block diagram.

Accompanying drawing 4 is the utility model circuit theory diagrams.

In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:

As Figure 1-3, present embodiment is to be grouped into by reference test bar part and indicator portion.Reference test bar 3 parts are connect to connect by the thin-walled epoxy resins insulation pipe box of more piece different-diameter and tapering and constitute, the back one insulation inner telescoping tube that saves that the insulation tube of every last joint all can be connected with its socket.Indicator 2 parts are arranged at the front end of reference test bar 3, and it adopts screw thread to be fixedly connected.For the insulation tube after solving the reference test bar sealed damp-proof and preventing to shrink skids off when carrying, on the final section insulation tube of reference test bar 3, be provided with retaining ring 4 and handle 5, the bottom of indicator 2 parts connects with retaining ring 4 sockets.Indicator 2 parts are by probe 1, housing, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, R ₂, R ₃, C ₂, R ₄, C ₃, electronic switch IC ₁, R ₅, acousto-optic electronic circuit IC ₂, IC ₃, R ₆, BG ₄, R ₇, C ₄, acousto-optic output circuit HA, LDE and the self-checking circuit AN that is serially connected on the function conversion circuit constitute.Probe 1 is fixed in the front end of housing by helicitic texture.Housing is a drum type brake discrete combined housing (as shown in Figure 2), adopt ABS engineering plastics pressure injection to form, aesthetic in appearance, good mechanical property, its by following conjuncted 6, upper body, sound chamber 7, go up shell 8 and element fixed mount 9 is formed, element fixed mount 9 is arranged in the shell 8, itself and last shell 8 all are fixed in the upper end of upper body, sound chamber 7, and following conjuncted 6 are arranged at the bottom in the upper body, sound chamber 7, and itself and 9 of element fixed mounts are formed with and have the sound-aid cavity 10 that strengthens sound and light program.For preventing other interference of light sources, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃All be sealed on the element fixed mount 9 in the housing, acousto-optic output circuit HA, LDE and self-checking circuit AN are arranged on housing conjuncted 6 lower surface up and down.Acousto-optic electronic circuit IC ₂, IC ₃Adopt integrated circuit, add the dual shield technology, opto-electronic conversion is adopted hermetically-sealed construction, in case other interference of light sources.In order to strengthen acoustooptic effect, power saving sounding component and superhigh brightness LED have been adopted during the acousto-optic designing circuitry.For weight reduction, reduced volume for indicator provides sufficient electric energy, has adopted two 3VCR ₂Battery has guaranteed electroscope, indicator reliable and stable work in UHV (ultra-high voltage) strong-electromagnetic field environment like this.

Principle of work of the present utility model is as follows:

As shown in Figure 4: when the high-voltage alternating electroscope does not carry out electrical verification, when electroscope is in normal condition, this moment AC starting loop electrified body → NJ, C ₁→ R ₁→ reference test bar---Yin there not being AC signal input, and that NJ does not have ionization is not luminous.So the transmission of unglazed signal, functional circuit BG ₁-BG ₃And RL, R ₂, R ₃, C ₂, R ₄, C ₃In a state of nature, BG ₁-BG ₃End, electronic switch closes, the power supply of providing is not provided the acousto-optic electronic circuit, acousto-optic output no-output, this moment, entire circuit was in no duty, and this moment, source current was less than 1 microampere after tested, and power supply power consumption is very little, entire circuit that hence one can see that is under charged situation but do not have work, and the translation function circuit has played the effect of power switch.As calculated, be non source switch, electroscope, indicator electronic circuit are under charged state, and institute's consumed power is very little, two CR that select for use ₂It also is satisfiable that battery uses 2 years.

When the high-voltage alternating electroscope carried out electrical verification, electroscope was in running order, electroscope probe contact or near (3cm) charging equipment, AC starting loop, charging equipment → NJ, C ₁→ R ₁There is AC signal (electric current less than 40 microamperes, harmless to human body) input on → reference test bar → human body → ground, and neon tube NJ ionized inert gas is luminous.There is the signal of light to be transferred to function conversion circuit like this.The photoresistance RL of function conversion circuit becomes low resistance (by hundreds of kilo-ohm → 200 Ω) by high value, this moment BG ₁The base electrode current potential raise and conducting, BG thereupon ₂Base electrode and BG ₃The base electrode current potential raise and conducting BG ₃Conducting make BG ₃The emitter current potential raises, and forces IC ₁Electronic switch work inserts IC with power supply ₂, IC ₃The acousto-optic electronic circuit, IC ₂, IC ₃Start working.IC ₂, IC ₃The acousto-optic electronic circuit is by constituting (commercially available prod) with the acousto-optic integrated circuit more than two, and it comprises the control input, regulates circuit such as vibration, audio oscillation, the output of raising one's voice, and comes down to two acoustic luminous integrated circuit.This circuit-pressurization is exportable interruption sound and light signal, send the intermittent sound signal by φ 27 piezoelectric element HA and sound-aid cavity, sending the signal that is interrupted light by four superhigh brightness LED LDE, whether charged, reached the purpose of electrical verification if can judge charged setting like this.

In order to increase the galvanoscopic reliability of high-voltage alternating, that electrical verification is set is accurate to charged in assurance, electroscope increases self-checking function, the increase of this function not only to before the electroscope electrical verification to the battery that uses qualified inspection the whether, and to the galvanoscopic all electronic circuit intact comprehensive test of also carrying out whether.The electroscope self-checking function increases by a button AN and realizes in function conversion circuit.When the needs self check, be used to connect AN, at this moment the BG of function conversion circuit ₁The base electrode current potential raises, and entire circuit is started working, and electronic switch closes gives the acousto-optic electronic circuit with power supply, thereby exports the sound and light signal that sends loud interruption by acousto-optic, informs that people's electroscope, indicator are in serviceable condition and can carry out electrical verification.

Claims

1, the two light high-voltage alternating electroscopes of the portable alliteration of a kind of 330KV-500KV, comprise also telescopic reference test bar (3) part that is connected by the socket of more piece insulation tube, it is characterized in that: the front end at described reference test bar (3) is provided with probe (1), housing, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃, acousto-optic output circuit HA, LDE and be serially connected in indicator (2) part that the self-checking circuit AN on the function conversion circuit forms, probe (1) is arranged on the upper end of housing, AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃Be arranged in the housing after adopting double screen fraud technology, acousto-optic output circuit HA, LDE and self-checking circuit AN button are arranged on the lower surface of housing; The light signal that neon tube NJ in the AC starting circuit sends is through function conversion circuit RL, BG ₁-BG ₃Light signal is converted to electric signal removes to control electronic switch IC ₁, guide sound optoelectronic circuit IC then ₂, IC ₃Drive acousto-optic output circuit HA, LDE and send sound and light signal.

2, the two light high-voltage alternating electroscopes of the portable alliteration of 330KV-500KV according to claim 1, it is characterized in that: described housing is a drum type brake discrete combined structure, it is by descending conjuncted (6), upper body, sound chamber (7), last shell (8) and element fixed mount (9) to form, element fixed mount (9) is arranged in the shell (8), itself and last shell (8) all are fixed in the upper end of upper body, sound chamber (7), down conjuncted (6) are arranged at the bottom in the upper body, sound chamber (7), are formed with sound-aid cavity (10) between itself and element fixed mount (9); Described AC starting circuit NJ, C ₁, R ₁, function conversion circuit RL, BG ₁-BG ₃, electronic switch IC ₁, acousto-optic electronic circuit IC ₂, IC ₃All be fixed on the element fixed mount (9); The AN button of described acousto-optic output circuit HA, LDE and self-checking circuit is arranged on down on the lower surface of conjuncted (6).

3, the two light high-voltage alternating electroscopes of the portable alliteration of 330KV-500KV according to claim 1, it is characterized in that: the final section insulation tube of described reference test bar (3) is provided with retaining ring (4) and handle (5).

4, the two light high-voltage alternating electroscopes of the portable alliteration of 330KV-500KV according to claim 1, it is characterized in that: the sounding component that described acousto-optic output circuit adopts is the piezoelectricity sounding component, and light-emitting component is four ultraphotic brightness light emitting diodes.