CN102323542B - Light detection device for circuit breaker, switch cart and knife-like switch action - Google Patents
Light detection device for circuit breaker, switch cart and knife-like switch action Download PDFInfo
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- CN102323542B CN102323542B CN 201110141428 CN201110141428A CN102323542B CN 102323542 B CN102323542 B CN 102323542B CN 201110141428 CN201110141428 CN 201110141428 CN 201110141428 A CN201110141428 A CN 201110141428A CN 102323542 B CN102323542 B CN 102323542B
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Abstract
The invention discloses a light detection device for a circuit breaker, a switch cart and a knife-like switch action, which comprises a U-shaped light detection positioner fixed on a bracket, a light detection baffle fixed on a rotating shaft, a single-core plastic communication optical fiber cable, a digital photoelectric coupling transmitter and a plastic digital photoelectric coupling receiver, wherein the light detection baffle is arranged in a U-shaped groove of the U-shaped light detection positioner; and the digital photoelectric coupling transmitter and the plastic digital photoelectric coupling receiver are respectively connected with the U-shaped light detection positioner through the single-core plastic communication optical fiber cable. The light detection device is acted on switching operation and is controlled by an automatic protecting device to carry out light detection of the action position and full action process of a moving contact in various operation states of the circuit breaker, the switch cart and the knife-like switch. The front end of the light detection device consists of passive insulating resin and a plastic optical fiber. The light detection device can be especially used for resisting strong electromagnetic interference and insulated danger high voltage and meeting the accurate detection requirement for intelligent program control operation and data overhaul.
Description
Technical field
The present invention relates to the detection field of electric equipment operation state and course of action, specifically a kind of isolating switch, switch cart, knife-like switch action light detect sensing device.
Background technology
Country implements intelligent grid, transformer station's program grid switching operation and online detection instrument state are the basic demands that realizes intelligent grid, and detecting reliably, exactly electric equipment operation state and course of action is again the primary gordian technique that realizes transformer station's repair based on condition of component and program grid switching operation.Known online detection isolating switch, circuit breaker trolley, disconnector, grounding switch, (the GIS electrical equipment is comprised of isolating switch, disconnector, grounding switch the GIS electrical equipment.Do not affect explanation; with isolating switch, circuit breaker trolley, disconnector, grounding switch, GIS electrical equipment; hereinafter to be referred as isolating switch, switch cart, knife-like switch) separating brake, the closing position of grid switching operation and execute protection and aut.eq. steering order judge it is that auxiliary contact, approach switch and active travel switch by institute's detection electrical equipment provides switching value, current/voltage analog quantity, divide-shut brake machinery indication and be comprised of the optoelectronic switch of the detection motor revolution of the actuating electric machine main shaft afterbody that is installed on switch cart, knife-like switch operating mechanism on the operating mechanism.By switching value, the current/voltage analog quantity of auxiliary contact, approach switch, travel switch and optoelectronic switch, the auxiliary image supervisory system is judged isolating switch, switch cart, knife-like switch present position, stroke, speed and whether charged.For the insulation risks high voltage with prevent that strong-electromagnetic field from disturbing; all detect isolating switch; switch cart; the sensing device installation site of knife-like switch action; all be away from high voltage and strong-electromagnetic field; with needs reliable detection isolating switch; switch cart; the knife-like switch separating brake; the physical location of living in of closing a floodgate; whether move and A; B; each moves C mutually and is connected with a plurality of transmission links between the moving contact of overall process; isolating switch; switch cart; knife-like switch gear train intermediate link is loosening; out of stock; bite; auxiliary contact; the approach switch loose contact; dislocation; the auxiliary image supervisory system is because institute's scope is blocked by surrounding devices and the light of environment periphery limits and operating personnel's working sense of responsibility is not is not conscientiously verified and confirmed the equipment physical location in the auxiliary image supervisory system by force; the equipment state position can not be reliable; the correct detection puts in place, thereby back brake maloperation and three phases un identical protection maloperation occur.The method of existing checkout equipment position, can not whole-process automatic on the technological layer accurate physical location and the course of action that detects under isolating switch, switch cart, the various running statuses of knife-like switch reliably; Can not effectively prevent 220kV and above minute phase control isolating switch three phases un identical protection because of the malfunction of auxiliary contact loose contact with because of can not be reliably detector switch dynamic/static contact moment of separating, contacting exactly, realize that reliably the switch choosing of 220kV and above divides, closes a floodgate difficult mutually.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of isolating switch, switch cart, knife-like switch action light detection sensing device, satisfies anti-strong electromagnetic, insulation risks high voltage, satisfies the accurate testing requirement of intelligent program control operation and repair based on condition of component.
Technical scheme of the present invention is:
A kind of isolating switch, switch cart, knife-like switch action light detect sensing device, comprise that the U-shaped smooth detection and location device that is fixed on the support, the light that is fixed on the rotation axis detect baffle plate, single core plastics telecommunication optical fiber optical cable, digital light electric coupling transmitter and plastics digital light electric coupling receiver, described light detects baffle plate and is arranged in the U-shaped groove of U-shaped smooth detection and location device, and described digital light electric coupling transmitter, plastics digital light electric coupling receiver all are connected with U-shaped smooth detection and location device by single core plastics telecommunication optical fiber optical cable.
Described support is the insulator inwall of breaker body insulation, the insulating support of breaker body insulation, the insulating barrier of breaker body insulation, or the switch cart body, or knife-like switch structure support; Described rotation axis is moving contact of breaker conducting rod or moving insulated tension pole, isolating switch, knife-like switch operating mechanism main shaft, switch cart cabinet or knife-like switch operation insulation porcelain axis of a cylinder.
Described U-shaped smooth detection and location device is selected U-shaped single hole light detection and location device or U-shaped diplopore light detection and location device; The two side of U-shaped single hole light detection and location device all has a through hole, and mutually corresponding, and insert respectively in the through hole termination of two single core plastics telecommunication optical fiber optical cables, and the inside surface of termination and sidewall is a plane; The two side of U-shaped diplopore light detection and location device all has 2 through holes, and mutually corresponding one by one, and insert respectively in the through hole termination of 4 single core plastics telecommunication optical fiber optical cables, and the inside surface of termination and sidewall is a plane.
Described light detects baffle plate and is divided into switch cart light detection baffle plate, and isolating switch light detects baffle plate, and isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate and knife-like switch light detects baffle plate; Described switch cart light detects baffle plate and is installed on the base, has rectangle on it and detects through hole, and it is corresponding one by one with the switch cart shift position with the track that span forms that rectangle detects through hole; Described isolating switch light detects baffle plate and is installed on moving contact of breaker conducting rod or the moving insulated tension pole, has double each shape side on it and detects through hole, and it is corresponding one by one with the moving contact of breaker shift position with the position that span forms that through hole detects in each shape side; Described isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate and are fixed on isolating switch, the knife-like switch operating mechanism main shaft, have the circle detection through hole that row's circular arc is arranged on it, the circular arc track of circle detection through hole and span composition and isolating switch, knife-like switch moving contact shift position are corresponding one by one; Described knife-like switch light detects baffle plate and is fixed on the rotation axis of knife-like switch moving contact insulation porcelain below, have the circle detection through hole that row's circular arc is arranged on it, the circle detection through hole is corresponding one by one with knife-like switch moving contact shift position with the circular arc track that span forms.
Be respectively arranged with the plastic optical fiber cable connector on described digital light electric coupling transmitter, the plastics digital light electric coupling receiver, described single core plastics telecommunication optical fiber optical cable is arranged in the plastic optical fiber cable connector.
The described isolating switch, the knife-like switch action light that are installed in the seal body of removing detects sensing device seal bootr is not installed, and isolating switch, switch cart, knife-like switch action light detection sensing device are installed on light and detect in the seal bootr; Light detects seal bootr and comprises seal bootr and lower seal bootr, upper seal bootr is fixed on the described rotation axis, described light detection baffle plate is fixed on the rotation axis and is positioned at lower seal bootr, and lower seal bootr is fixed on the described support, and light detection and location device is fixed in the lower seal bootr.
Beneficial effect of the present invention:
(1), anti-strong electromagnetic, insulation risks voltage, substitute isolating switch, switch cart, knife-like switch auxiliary terminal, travel switch and optoelectronic switch;
(2), remove auxiliary terminal, a plurality of indirect links such as travel switch and intermediate transmission, isolating switch, switch cart, knife-like switch divides, combined floodgate puts in place and moves overall process and can be detected exactly, can detect isolating switch dynamic/static contact deciliter instantaneous velocity, the average mark closing speed, the closing rebound time, the divide-shut brake asynchrony, branch wire time, contacting travel, clearance between open contacts, vacuum circuit breaker dynamic/static contact accumulation melting loss thickness, isolating switch plug-in type striking dynamic/static contact accumulation melting loss length, the mechanical property of operating mechanism, the switch cart running status, translational speed, moving direction, the mechanical property of operating mechanism in shift position and the moving process, knife-like switch moving contact average mark closing speed, the divide-shut brake asynchrony, branch wire time, the mechanical property of operating mechanism in the divide-shut brake process;
(3), realize technically Intelligent Measurement and Based Intelligent Control in the programming operations process;
(4), stopping procedure operation image monitor staff monitors not in place and exists isolating switch, switch cart, some positions of knife-like switch can't implement the actual conditions of picture control, guarantee technically in the conventional grid switching operation of programming operations and at present electric system, program anti-misoperation and electric, uncontrollable each mutually divide-shut brake dislocation, not in place of mechanical anti-misoperation operation, all kinds maloperation of phase-deficient operation;
(5), solving 220kV and above minute phase control isolating switch three phases un identical protection malfunction occurs and realizes that the isolating switch choosing divides mutually, closes a floodgate because of relay contact or auxiliary contact loose contact, shake; reduce the switching impulse superpotential; reduce the requirement of switching overvoltage dielectric level; protection grid equipment safety improves operation of power networks reliability stability.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of U-shaped single hole light detection and location device.
Fig. 3 is the structural representation of U-shaped diplopore light detection and location device.
Fig. 4 is the structural representation that switch cart light detects baffle plate.
Fig. 5 is the structural representation that isolating switch light detects baffle plate.
Fig. 6 is the structural representation that isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate.
Fig. 7 is the structural representation that knife-like switch light detects baffle plate.
Fig. 8 is the structural representation that light detects plastics digital light electric coupler.
Fig. 9 is the mounting structure schematic diagram that light detects seal bootr.
Embodiment
One, manufacturing and the installation method of isolating switch, switch cart, knife-like switch action light detection sensing device are:
See Fig. 1, a kind of isolating switch, switch cart, knife-like switch action light detects sensing device, what comprise that insulating resin consists of is fixed in U-shaped smooth detection and location device 1.8 on the support 1.6, the light that is fixed on the rotation axis 1.5 detects baffle plate 1.7, single core plastics telecommunication optical fiber optical cable 1,3,1.4, digital light electric coupling transmitter 1.1 and plastics digital light electric coupling receiver 1.2, light detects baffle plate 1.7 and is arranged in the U-shaped groove of U-shaped smooth detection and location device 1.8, and digital light electric coupling transmitter 1.1 plastics digital light electric coupling receivers 1.2 are respectively by single core plastics telecommunication optical fiber optical cable 1.3, single core plastics telecommunication optical fiber optical cable 1.4 is connected with U-shaped smooth detection and location device 1.8.The U-shaped smooth detection and location device 1.8 of insulating resin that light detects the sensing device front end can directly be fixed on the insulator inwall of breaker body insulation, the insulation structure support of breaker body insulation, the insulating barrier of breaker body insulation, or the switch cart body, or on the knife-like switch structure support 1.6; Light detects baffle plate 1.7 can be fixed on isolating switch moving conductive rod or moving insulated tension pole 5.5, and isolating switch, knife-like switch operating mechanism main shaft are on switch cart cabinet and the knife-like switch moving contact insulation porcelain axis of a cylinder 1.5; Light detects the plastics digital light electric coupling transmitter 1.1 of sensing device end and launches all the time red visible light, the plastics digital light electric coupling receiver 1.2 that light detects the sensing device end receives red visible light, plastics digital light electric coupling receiver output digit signals, plastics digital light electric coupling receiver receives red visible light output high potential signal, the regulation high potential signal is switching value 1, plastics digital light electric coupling receiver does not receive red visible light output low-potential signal, and the regulation low-potential signal is switching value 0.
Installation method: all kinds of light detect the U-shaped notch centre position that baffle plates all place corresponding U-shaped smooth detection and location device, light detect the baffle plate two side faces not with the U-shaped notch of U-shaped smooth detection and location device in two side faces come in contact; Joint length is not more than 80 meters 0.24 millimeter of core diameter and (is used for 10kV; the indoor armoured switch cabinet of 35kV electric pressure) or 1.0 millimeters plastics list core telecommunication optical fiber optical cable; use plastics list core telecommunication optical fiber optical cable Special scissors that plastics list core telecommunication optical fiber optical cable is vertically cut off from the centre; with four terminations of the two optical fiber cables tangent plane that cuts off shear radially vertical with optical fiber cable; arbitrary termination of an optical fiber cable is inserted and is fixed in the optical fiber optical cable patchhole of U-shaped smooth detection and location device; the port of the optical fiber cable termination of inserting and the U-shaped groove inboard, upright inwall of U-shaped smooth detection and location device are same plane; arbitrary termination of another root optical fiber cable is also inserted and is fixed in the opposite side optical fiber cable patchhole of U-shaped smooth detection and location device; the port of the optical fiber cable termination of inserting and the U-shaped groove inboard, upright inwall of U-shaped smooth detection and location device are same plane; two optical fiber cable termination ports in the U-shaped groove over against; two optical fiber cable axle center point-blank; another termination insertion of arbitrary optical fiber cable is fixed on the plastic optical fiber cable connector; the plastic optical fiber cable connector inserts and is fixed in the red VISIBLE LIGHT EMISSION hole of plastics digital light electric coupling transmitter; another termination insertion of another root optical fiber cable is fixed on the plastic optical fiber cable connector; the plastic optical fiber cable connector inserts in the red visible light receiver hole of the reception that is fixed on plastics digital light electric coupling receiver; plastics digital light electric coupling transmitter is the red visible light of emission wavelength 650 nanometers all the time; (the red visible light of this wave band transmits in optical fiber far the red visible light of plastics digital light electric coupling receiver reception wavelength 650 nanometers; loss is little); isolating switch; switch cart; the a certain normal operating condition in knife-like switch moving contact initial place; light detect perforate on the baffle plate or span just in time with U-shaped smooth detection and location device in two plastics list core telecommunication optical fiber optical cable ports be on the straight line; moving conductive rod or moving insulated tension pole in being fixedly mounted on breaker body; the light at switch cart body and knife-like switch insulation porcelain axis of a cylinder position detects baffle plate with moving contact of breaker; the switch cart body; when the translation of knife-like switch moving contact motion locus or rotation; plastics digital light electric coupling receiver is according to receiving or can not receive the next red visible light of plastics digital light electric coupling transmitter emission; output switch amount 1 or 0; the wall supervisory system is by detecting the switching value of sensing device output to light; switching value changes and switching value transformation period length; and former each time operating parameter of preserving of contrast is (after the equipment rebuilding or new equipment when putting into operation; the basic parameter of input wall or background monitoring system); press A; B; the C three-phase carries out respectively computational analysis; intelligent program control operation control is processed; prevent that the action of electrical equipment moving contact is not in place; the moving contact end separately; back brake maloperation and prevent 220kV and the three phases un identical protection malfunction of above minute phase control isolating switch; and realize that three-phase synchronous operates; make isolating switch by on the phase place of appointment minute; close a floodgate; thereby reduce the switching impulse superpotential; reduce the requirement of switching overvoltage dielectric level; protection grid equipment safety improves operation of power networks reliability stability.
See Fig. 2, U-shaped single hole light detection and location device 2.1 is made by the insulating resin material, the silhouette edge of U-shaped groove is along being circular arc, optimized breaker, switch cart, the internal field of knife-like switch distributes by force, in the U-shaped groove vertical two opposing parallel and and bottom vertical, vertical two when guaranteeing that apart light detects baffle plate and moves in U-shaped groove, do not touch the minor increment of vertical two inboards, at place, vertical two the close tops of U-shaped groove, level is opened pair of holes 2.2 over against ground, this inserts the hole and fixing single core plastics telecommunication optical fiber optical cable termination, and vertical two inwalls of single core plastics telecommunication optical fiber cable end head plane and U-shaped groove are same plane.
See Fig. 3, U-shaped diplopore light detection and location device 3.1 is made by the insulating resin material, the silhouette edge of U-shaped groove is along being circular arc, optimized breaker, the internal field of switch cart distributes by force, in the U-shaped groove vertical two opposing parallel and and bottom vertical, vertical two when guaranteeing that apart light detects baffle plate and moves in U-shaped groove, do not touch the minor increment of vertical two inboards, at place, vertical two the close tops of U-shaped groove, vertically level is opened two pairs of holes 3.2 over against ground, insert and fixing single core plastics telecommunication optical fiber optical cable termination in these two pairs of holes, and vertical two inwalls of single core plastics telecommunication optical fiber cable end head plane and U-shaped groove are same plane.
See Fig. 4, switch cart light detects baffle plate 4.4 and is installed on the base 4.3, having on the baffle plate 4.4 can be by the slot of optical fiber light beam, adopt U-shaped diplopore light detection and location device 3.1 to detect, the position at each hole and interval respectively representation switch dolly moves to position 4.2 in stand-by heat position 4.1, cold standby position 4.5 and the overall process translation process.The stroke of switch cart is divided into three phases and corresponding three translational speeds, phase one, to be switch cart moved to the LAP (phase one) that dynamic/static contact will discharge position at cold standby position and switch cart, subordinate phase is that switch cart moves to dynamic/static contact and will discharge position rigidly connect the LAP (subordinate phase) that touches the position to the switch cart dynamic/static contact, phase III is that the switch cart dynamic/static contact rigidly connects tactile position to the LAP (phase III) of switch cart in the stand-by heat position, satisfies switch cart and is in the different translational speed of different phase requirement and control processing mode.
See Fig. 5, isolating switch light detects baffle plate 5.3 by the dielectric resin material manufacturing, having on the baffle plate can be by double each shape square hole of optical fiber light beam, adopt U-shaped diplopore light detection and location device 3.1 to detect, light detects baffle plate and is fixed on moving contact of breaker conducting rod or the moving insulated tension pole 5.5, moving contact of breaker standard open position 5.2, moving contact of breaker separating brake maximum position 5.1, moving contact of breaker standard closing position 5.6, isolating switch dynamic/static contact open position 5.2 namely is clearance between open contacts to the distance of 5.6 of closing positions, the maximum melting loss position 5.7 that allows of vacuum circuit breaker dynamic/static contact, light detects on the baffle plate except on 5.4 positions, lower open position 5.2 and closing position 5.6 samplings are " 0 ", outside " 0 ", on other arbitrary position adjacent, the upper/lower positions sampling is always different, detect baffle plate by light and move to diverse location and displacement time, measure breaker closing, separating brake, dynamic/static contact rigidly connects tactile, dynamic/static contact just separates, the combined floodgate range, the separating brake range, the combined floodgate minimum stroke, mechanical property in separating brake minimum stroke and the moving contact motion process.Breaker body forms light by " isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate (Fig. 6) " on A, B, 3 " isolating switch light detects baffle plate " of C phase and each isolating switch, the knife-like switch operating mechanism and detects the front end.
See Fig. 6, isolating switch, knife-like switch operating mechanism main shaft light detects baffle plate 6.4 by the dielectric resin material manufacturing, light detects baffle plate and is fixed on isolating switch, on the knife-like switch operating mechanism main shaft 6.3, have on the baffle plate and can detect the hole by the garden shape of optical fiber light beam, detecting the center, hole is that light detects baffle plate detection orbital radius to the operating mechanism alignment of shafts, satisfy red light logical, disconnected once is that the operating mechanism main shaft turns over a degree of fixation angle, on two sidelines, angle of operating mechanism main shaft garden arc rotary motion trace and standard closing position and standard open position angular range two intersection points are arranged, open a hole 6.7 on the intersection point of one sideline and standard closing position track, not perforate 6.2 on the intersection point of another sideline and standard open position track, open the hole that a row interval equals red visible light column diameter in standard closing position tapping back along garden arc rotary motion trace, the aperture equals red visible light column diameter, at the standard closing position, the hole of opening some by same perforate rule before and after the standard open position, each hole site and interval location represent that respectively the operating mechanism main shaft rotates at combined floodgate, separating brake, the moving contact excess of stroke or knife-like switch main shaft combined floodgate maximum rotation angle 6.6, main shaft separating brake maximum rotation angle 6.1, the combined floodgate main shaft rotates minimum stroke, each position of 6.5 in separating brake main shaft rotation minimum stroke and the main shaft rotation process.Isolating switch, the conjuncted operating mechanism of knife-like switch three-phase form isolating switch by 1 " isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate (Fig. 6) ", knife-like switch operating mechanism light detects the front end; Isolating switch, the every mutually independent operating mechanism of knife-like switch form isolating switch by 3 " isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate (Fig. 6) ", knife-like switch operating mechanism light detects the front end.
See Fig. 7, knife-like switch light detects baffle plate 7.5 by the dielectric resin material manufacturing, light detects baffle plate and is fixed on the knife-like switch operation insulation porcelain axis of a cylinder 7.4, light detects and detects the center, hole on the baffle plate is that light detects baffle plate detection orbital radius to insulation porcelain axis of a cylinder center, satisfy red light logical, disconnected once is that the knife-like switch moving contact turns over a degree of fixation angle, on two sidelines, angle of knife-like switch light detection baffle plate garden arc rotary motion trace and standard closing position 7.1 and standard open position 7.7 angular ranges two intersection points are arranged, in the respectively perforate of two intersection points, in standard closing position and standard open position angular range, open the hole that a row interval equals red visible light column diameter along garden arc rotary motion trace, the aperture equals red visible light column diameter, at the standard closing position, the hole of opening some by same perforate rule before and after the standard open position, satisfy and can detect maximum combined floodgate travel position 7.3 and the maximum separating brake travel position 7.6 that allows of allowing of knife-like switch, standard is divided, each span represents knife-like switch moving contact rotation process position between closing position.Isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate and form knife-like switch operating state detection front end with 3 mutually of A, B, C " knife-like switch light detects baffle plate ".
See Fig. 8, light detects plastics digital light electric coupler and launches all the time red visible light by the plastics digital light electric coupling transmitter 1.1 that light detects the sensing device end, the plastics digital light electric coupling receiver 1.2 that light detects the sensing device end receives red visible light, single core plastics telecommunication optical fiber optical cable 1.3 of the red visible light of transmitting is inserted and secured on plastic optical fiber cable connector 8.1, and plastic optical fiber cable connector 8.1 is inserted and secured on plastics digital light electric coupling transmitter 1.1 again; The single core plastics telecommunication optical fiber optical cable 1.4 that receives red visible light is inserted and secured on photo-fibre and light cable jointer 8.2, and plastic optical fiber cable connector 8.2 is inserted and secured on plastics digital light electric coupling receiver 1.2 again.Light detects plastics digital light electric coupler and finishes red VISIBLE LIGHT EMISSION, reception and process output numerical information.
See Fig. 9, place outdoor knife-like switch operating mechanism main shaft light to detect sensing device, knife-like switch light detects sensing device and is installed in dustproof, rainproof in the seal bootr (Fig. 9), half-light (in sealing GIS electrical equipment, the breaker body seal bootr not being installed).Light detects seal bootr and comprises outer closure cover 9.1 and inner sealing cover 9.2, outer closure cover 9.1 is fixed on the rotation axis 1.5, light detection baffle plate 1.7 is fixed on the rotation axis 1.5 and is positioned at inner sealing cover 9.2, the inner sealing cover is fixed on knife-like switch operating mechanism, the knife switch bracket, and light detection and location device 1.8 is fixed in the inner sealing cover 9.2.
Two, detection method:
Plastics digital light electric coupling transmitter 1.1 remains the red visible light of emission, red visible light is transmitted to U-shaped smooth detection and location device 1.8 fiber ports one side through plastics list core telecommunication optical fiber optical cable 1.3, red visible light is coupled to U-shaped smooth detection and location device 1.8 another fiber ports, red visible light is transmitted to plastics digital light electric coupling receiver 1.2 through this root telecommunication optical fiber optical cable 1.4, all kinds of light detect baffle plate 1.7 and all place in the U-shaped notch of U-shaped smooth detection and location device 1.8, light detect baffle plate 1.7 two side faces not with the U-shaped notch of U-shaped smooth detection and location device 1.8 in two side faces come in contact, perforate 2.2 on the light detection and location device 1.8 or perforate 3.2 just in time with U-shaped smooth detection and location device in 2 or 4 plastics list core telecommunication optical fiber optical cable ports be on the straight line, be fixedly mounted on moving conductive rod or moving insulated tension pole in the breaker body, the light at switch cart body and knife-like switch insulation porcelain axis of a cylinder position detects baffle plate 1.7 with conducting rod or insulated tension pole, the switch cart body, 1.5 translations of knife-like switch insulation porcelain axis of a cylinder or rotation, according to isolating switch, the light of switch cart and the action of knife-like switch moving contact motion locus detects baffle plate and connects or block the interior red visible light beam of the U-shaped notch of U-shaped smooth detection and location device, plastics digital light electric coupling receiver output switch amount signal 1 or 0.
(1), isolating switch divide, the feed motion light detection method:
Isolating switch divides, feed motion light detects respectively by A, B, 3 mutually of C " isolating switch light detects baffle plate (Fig. 5) ", 3 " U-shaped diplopore light detection and location devices (Fig. 3) ", 1 " isolating switch; knife-like switch operating mechanism main shaft light detects baffle plate (Fig. 6) (three-phase independence operating mechanism is 1 of every phase then; totally 3 isolating switchs; knife-like switch operating mechanism main shaft light detects baffle plate) " and 1 " U-shaped single hole light detection and location devices (Fig. 2) (then every 1 mutually of three-phase independence operating mechanism, totally 3 U-shaped single hole light detection and location devices) " formation isolating switch divide, feed motion light detects the front end.Isolating switch light detects baffle plate and closes, divides and do upper and lower translation with moving contact of breaker, and U-shaped diplopore light detection and location device adopts left and right sides independent light detection recombinant alignment method to carry out each phase moving contact mechanical property discriminatory analysis.For describing the process of isolating switch motion detection method in detail, select carefully to state vacuum circuit breaker by assigning to the making process that closes, moving contact of breaker upwards closes a floodgate from standard open position 5.2 and moves to standard closing position 5.6, moving at isolating switch, when static contact just contacts, there is not spring, detect the switching value variation with the right light and change the time of corresponding variation as the reference time of this position switch quantitative change with each switching value, the switching value that left side light is detected makes up, on the right the relevant position greater than the 1 times of benchmark transformation period in this position less than in 2 times of benchmark transformation periods, the switching value that left side light detects does not become then as finishing 0 continuously, 0 or finish continuously 1,1 course of action, two light detection independent detection goes out switching value 0 about diplopore light detection and location device, 1,0 and 0,1,0, namely be 00,11,00, then there is spring since 01, suppose to detect the right flash ranging go out 010101010101010 totally 15 change switching values, then light detects 010010110001001 totally 15 switching values in the corresponding benchmark transformation period in the left side, organize again switching value combination contraposition, then have 00,11,00,01,10,01,10,11,00,01,00,11,00,01,10 amount to 15 switching value combination contrapositions, contact of breaker allows melting loss position (5.7) closure to stop in maximum, about the detected switching value of light combination correspondence be 00,11,00,01,10,11,00,01,10, with detected 15 switching values combination contraposition, contrast the 6th of detection, 7 and 11,12,13,14 switching value position combined floodgate direction moving contacts bounce, by detected 00,11,00,01,10,01,10,11,00,01,00,11,00,01,10 amount to 15 combined switch amounts, relevant position each switching value transformation period and breaker open operation, each fixed position, hole goes out each phase closing speed apart from computational analysis on the combined floodgate light detection baffle plate, operating position, contact wear degree and contact final position etc. be mechanical property in real time, detects equally real-time separating brake mechanical property; Breaker operation mechanism main shaft light detect baffle plate at vacuum circuit breaker by assigning to the making process that closes, begin to rotate in the main shaft rotation process 6.5 position to standard closing position 6.7 by standard open position 6.2, finally forward moving contact excess of stroke position 6.6 to, flash ranging goes out the 010101010101 corresponding time variation of totally 12 variation switching values and each position, calculates each mechanical property of operating mechanism.The arbitrary light of isolating switch occurs and detect and occur and other two-phase and main shaft operation regulating lever mechanism have finished corresponding detection, then judge the isolating switch phase-deficient operation; Isolating switch three-phase light occurs and detect and occur and main shaft operation regulating lever mechanism has finished corresponding detection, judge that then isolating switch does not move and the fault that transmission has broken away between main shaft operation regulating lever mechanism and isolating switch occurs.Wall controller and background monitoring server stores compare each isolating switch action mechanical property and isolating switch standard operation mechanical property and the mechanical property of moving last time, can draw vacuum circuit breaker running status or fault type and repair based on condition of component parameter.
(2), the hot and cold conversion operations light detection method for subsequent use of switch cart:
Switch cart cold (testing position), stand-by heat (run location) conversion operations light detect by 1 " switch cart light detects baffle plate (Fig. 4) " and 1 " U-shaped diplopore light detection and location devices (Fig. 3) " and consist of light detection front device.The separating brake, the combined floodgate light detection baffle plate that are fixed on the switch cart close, divide and do the front and back translation with the switch cart moving contact, and the U-shaped diplopore light detection and location device that is fixed on the switch switch cabinet adopts left and right sides independent light detection recombinant alignment method to carry out switch cart mechanical property discriminatory analysis.For describing the process of switch cart motion detection method in detail, select carefully to state switch cart is turned stand-by heat by cold standby grid switching operation process, switch cart is moved to standard stand-by heat position 4.1 by standard cold standby position 4.5, switch cart is finished " three phases " stroke, row's light detects light and detects the upper row of baffle plate (Fig. 4) interval switching value 0101 on the U-shaped diplopore light detection and location device ... 0101 number, the transformation period of position and each switching value, row's master switch amount is counted the percentage that ratio namely is switch cart displacement on detected switching value number and the light detection baffle plate, the row's of finishing interval switching value 0101 ... 0101 omnidistance number detects, lower row's light detects light and detects baffle interval switching value 101, determine that then switch cart has moved to the stand-by heat position, the flash ranging bright dipping detects on the baffle plate and arranges 0101 ... 0101 omnidistance switching value number changes and the corresponding time of each position changes the correspondence position mechanical property of compute switch dolly.Light detector switch dolly moves in different phase, and the switch cart translational speed is different; Appearance light detector switch amount does not change or corresponding time of each position changes greater than each stage criterion traveling time variation, judge that " jam " appears in switch cart, light detector switch dolly moved in the phase one, wall controller then gauge tap dolly is retracted into the cold standby position, light detector switch dolly moves in subordinate phase, wall controller then gauge tap dolly moves the thermotropism spare space again, again occur " jam ", wall controller then force switch dolly is retracted into cold standby position (the slowest step velocity, large starting current), light detector switch dolly moved in the phase III, wall controller then gauge tap dolly claims the thermotropism spare space, again occur " jam ", the wall controller is the control of shutdown switch dolly then, when switch cart changes moving direction (electronic), the wall controller automatically carries out detected switching value number and successively decreases or increase progressively, determine the percentage of switch cart displacement, realize " intelligence " operation on the basis of program grid switching operation.
(3), knife-like switch separating brake, closing operation light detection method:
The knife-like switch separating brake, closing operation light detects respectively and at each moving contact insulation porcelain axis of a cylinder of every phase " knife-like switch light detects baffle plate (Fig. 7) " is installed, at isolating switch, knife-like switch operating mechanism main shaft is installed " isolating switch; knife-like switch operating mechanism main shaft light detects baffle plate (Fig. 6) (three-phase independence operating mechanism is then every installs 1 isolating switch mutually; knife-like switch operating mechanism main shaft light detects baffle plate) ", at knife-like switch operating mechanism main shaft, corresponding light detects baffle position " U-shaped single hole light detection and location devices (Fig. 2) " is installed one to one on the knife-like switch structure support, consists of the knife-like switch separating brake, feed motion light detects the front end.Knife-like switch separating brake, combined floodgate light detect baffle plate and close, divide to do and sway or upper and lower translation with the knife-like switch moving contact.For describing the process of knife-like switch motion detection method in detail, select carefully to state three insulation column knife-like switches by assigning to the making process that closes, the knife-like switch moving contact rotates to standard closing position 7.1 from standard open position 7.7, flash ranging goes out the 101010101010101 corresponding time variations of totally 15 variation switching values and each position, detect on the baffle plate each fixed position, hole at each switching value transformation period of relevant position and knife-like switch light and go out each real-time mechanical property such as closing speed, operating position and contact final position mutually of knife-like switch apart from computational analysis, detect equally real-time separating brake mechanical property; Knife-like switch operating mechanism main shaft light detect baffle plate at knife-like switch by assigning to the making process that closes, begin to rotate in the main shaft rotation process 6.5 position to standard closing position 6.7 by standard open position 6.2, flash ranging goes out the 0101010101 corresponding time variation of totally 10 variation switching values and each position, calculates each mechanical property of operating mechanism.Light that knife-like switch appoints occurs and detect and occur and other two-phase and main shaft operation regulating lever mechanism have finished corresponding detection, then judge knife-like switch one sequence; Knife-like switch three-phase light occurs and detect and occur and main shaft operation regulating lever mechanism has finished corresponding detection, judge that then knife-like switch does not move and the fault that transmission has broken away between main shaft operation regulating lever mechanism and isolating switch occurs.The each knife-like switch action of wall controller and background monitoring server stores mechanical property compares, and can draw knife-like switch running status or fault type and repair based on condition of component parameter.
Claims (2)
1. an isolating switch, switch cart, knife-like switch action light detect sensing device, comprise that the U-shaped smooth detection and location device that is fixed on the support, the light that is fixed on the rotation axis detect baffle plate, single core plastics telecommunication optical fiber optical cable, plastics digital light electric coupling transmitter and plastics digital light electric coupling receiver, described light detects baffle plate and is arranged in the U-shaped groove of U-shaped smooth detection and location device, described plastics digital light electric coupling transmitter, plastics digital light electric coupling receiver all are connected with U-shaped smooth detection and location device by single core plastics telecommunication optical fiber optical cable, it is characterized in that:
Described light detects baffle plate and is divided into switch cart light detection baffle plate, isolating switch light detection baffle plate, knife-like switch light detection baffle plate and isolating switch, knife-like switch operating mechanism main shaft light detection baffle plate;
Described switch cart light detects baffle plate and is installed on the base, has rectangle on it and detects through hole, and it is corresponding one by one with the switch cart shift position with the track that span forms that rectangle detects through hole;
Described isolating switch light detects baffle plate and is installed on moving contact of breaker conducting rod or the moving insulated tension pole, has double each shape side on it and detects through hole, and it is corresponding one by one with the moving contact of breaker shift position with the position that span forms that through hole detects in each shape side;
Described knife-like switch light detects baffle plate and is fixed on the knife-like switch moving contact insulation porcelain lower shaft, have the circle detection through hole that row's circular arc is arranged on it, the circle detection through hole is corresponding one by one with the moving contact of breaker shift position with the circular arc track that span forms;
Described isolating switch, knife-like switch operating mechanism main shaft light detect baffle plate and are fixed on isolating switch, the knife-like switch operating mechanism main shaft, have the circle detection through hole that row's circular arc is arranged on it, the circular arc track of circle detection through hole and span composition and isolating switch, knife-like switch moving contact shift position are corresponding one by one.
2. isolating switch according to claim 1, switch cart, knife-like switch action light detect sensing device, it is characterized in that:
Described isolating switch, switch cart, knife-like switch action light detect sensing device and are installed in the light detection seal bootr; Light detects seal bootr and comprises outer closure cover and inner sealing cover, the outer closure cover is fixed on the described rotation axis, described light detection baffle plate is fixed on the rotation axis and is positioned at the inner sealing cover, and the inner sealing cover is fixed on the described support, and light detection and location device is fixed in the inner sealing cover.
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| CN 201110141428 CN102323542B (en) | 2011-05-30 | 2011-05-30 | Light detection device for circuit breaker, switch cart and knife-like switch action |
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| CN104502840A (en) * | 2015-01-04 | 2015-04-08 | 北京慧智神光科技有限公司 | Breaker health diagnosis instrument |
| CN105137346B (en) * | 2015-10-08 | 2017-10-31 | 广东电网有限责任公司东莞供电局 | High-voltage switch gear kind equipment divide-shut brake based on gravity is to level monitoring system |
| CN107037761A (en) * | 2017-05-25 | 2017-08-11 | 四川汇友电气有限公司 | Distribution type monitoring device of touch network with fiber switch |
| CN108414928B (en) * | 2018-03-29 | 2023-05-26 | 广东电网有限责任公司 | Method and device for detecting opening and closing time of circuit breaker coil |
| CN109541451A (en) * | 2018-11-20 | 2019-03-29 | 上海思源高压开关有限公司 | A kind of intelligent regulator device for mechanical breaker fracture consistency |
| CN111238407B (en) * | 2020-01-30 | 2020-12-01 | 华东交通大学 | Sensor system for measuring angle of contact net isolating switch knife |
| CN112945528B (en) * | 2021-01-29 | 2023-04-28 | 河北能瑞科技有限公司 | Inflation isolating switch opening and closing detection device and detection method thereof |
| CN113241744B (en) * | 2021-06-09 | 2023-05-02 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Control loop of switching device in transformer substation |
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Effective date of registration: 20160222 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: State Grid Corporation of China Patentee after: MAINTENANCE COMPANY OF STATE GRID ANHUI ELECTRIC POWER COMPANY Patentee after: WUXI QIHAI INTELLIGENT CONTROL TECHNOLOGY CO., LTD. Address before: Xianfeng Anhui 246003 Lane Anqing Yingjiang District 1 Building 1 unit 602 room Patentee before: Ye Qiushi |
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