CN105319407A - Dual-loop impulse generator - Google Patents
Dual-loop impulse generator Download PDFInfo
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Abstract
The invention provides a dual-loop impulse genera tor which comprises a charging device, a body energy storage device, a trigger system device, a double-loop discharge ball gap, a wave modulating network device, a sample desk and a measurement control analysis system. The body energy storage device comprises capacitors and protection resistors. Each protection resistor is added above each capacitor. Each capacitor is a low inductance capacitor and is vertically placed. The capacitors are in fan-shaped arrangement and are movable. The trigger system device comprises a trigger button, a high voltage pulse interference resistance trigger device and a synchronous or asynchronous adjusting device. The trigger system device operates after button operation to fire the ball gap and synchronously or asynchronously fire double loops. According to the dual-loop impulse generator, a high level comprehensive test platform is provided for the development and the test of new lightning protection technologies; the technology research level of the lightning protection industry is promoted; and a scientific support is provided for the development of all types of new materials, new structures and new devices.
Description
Technical field
The present invention relates to signal Long-distance Control, electronic equipment Long line transmission, and about the two-circuit surge generator simulated test facility in lightning protection components and parts lightning protection high-voltage pulse field, especially relate to a kind of two-circuit surge generator.
Background technology
Lightning Disaster accident ratio distribution in recent years changes to some extent, its principal feature is that signal system and electronic equipment are affected and are tending towards serious, and Lightning Disaster is spreaded over a whole area from one point, and the scope related to is more extensive, thunder and lightning is lost in continuous increase, highlights deficiency and the backwardness of current Lightning Prevention Technique.After a lot of products of current domestic lightning protection industry are arranged on system, occur shielding failure, transmission obstacle, even initiation fire are formed of common occurrence compared with the situation of major break down, both do not reach lightning protection object, cause negative effect to again lightning protection industry development.
Trace it to its cause, domestic no matter components and parts or overall test at present, main all only by through-flow come certification test, and according to IEEE587-1980 standard, Reality simulation environment should be carried out with " double wave voltage wave etc. " test, except the energy coordination of lightning-protected product, the test of Lightning Prevention Technique should be further the more reliable means of lightning protection industry research closer to true lightning discharge process.
By the foundation of two-circuit surge generator, for lightning protection new technology development and test provide high-caliber comprehensive test platform, can promote lightning protection industry technology research level, the research and development for all kinds of new material, new construction and new equipment provide test to support.
For making shop experiment do better, must make it closer to true environment with test condition test method.By producing simulating nature circle thunder and lightning closer to real test condition and test method in laboratory environment, research Lightning Prevention Technique, tests to existing thunderstorm electricity protective device, and record improves test figure, for research Lightning Disaster, exploitation lightning protection new technology provides reliable data and information.The generation of research thunder and lightning and the mechanism of action, improving shocking preventing technology level is one of target of thunder and lightning test and research field pursuit.
Summary of the invention
The object of the invention is to design a kind of novel two-circuit surge generator, solve the problem.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of two-circuit surge generator, comprises charging device, body energy storage device, triggering system device, two-circuit ball discharge gap, harmonic network equipment, test product table and Survey control analytic system;
Described charging device comprises insulating cylinder oil immersed type charging transformer, SCR control high-voltage rectification silicon stack, earthing device and polarity turns, movable pedestal;
Described body energy storage device comprises capacitor and protective resistance; Be added with a protective resistance above each capacitor, described capacitor is that low electrification holds and vertical placement, and assembled arrangement mode takes fan-shaped array, and structure is packaged type;
Described triggering system device comprises trigger button, anti-high-voltage pulse interference triggered device and synchronous or asynchronous regulating device; Described triggering system device makes triggering system device action after button actions, and ball gap is lighted a fire, and two-circuit can synchronously or asynchronous ignition;
Described two-circuit ball discharge gap comprises supporting linear electric motors, quieter and two cover discharge frames; Described two-circuit ball discharge gap discharge mode is synchronous discharge or asynchronous electric discharge; Motor regulates ball discharge gap automatically;
Described harmonic network equipment, adopts the noninductive coiling of nichrome resistance band, can adjust arbitrarily voltage wave, current wave and complex wave; By harmonic network after triggering discharges, export required random waveform;
Described test product table uses a transformer and a pressure regulator, can be connected to two-way transmission line or two SPD test products by isolator simultaneously, and single channel also can be selected to export; The desktop of described test product table is added with organic glass protective cover, and residual voltage voltage divider is included, and each road measuring voltage, electric current adopt twin-core shielding line to export panel to by BNC;
Described Survey control analytic system part comprises control triggering system and measuring and analysis system automatically;
Wherein, described automatic control triggering system comprises color liquid crystal touch screen, control knob/switch, PLC, control device and performance element;
Described measuring and analysis system comprises industrial computer, oscillograph, Pearson coil, residual voltage voltage divider, touch-screen and PLC control system.
Described charging device is that two-circuit exports, one-piece construction; It is inner that bridge rectifier is arranged on described insulating cylinder oil immersed type charging transformer, divides two-way to be connected to capacitor by two sleeve pipes of described insulating cylinder oil immersed type charging transformer through 2 protective resistances; Described SCR control high-voltage rectification silicon stack positive-negative polarity is changed automatically and charge protection resistance is arranged in the casing of described insulating cylinder oil immersed type charging transformer, and integral installation is on movable charging dolly; Series and parallel compensated resistance is arranged in the plug-in resistance box of described insulating cylinder oil immersed type charging transformer, and resistance box installs 2 radiator fans additional, and louvre is left at resistance box top.
Each described Capacitor banks is contained on a moveable chassis, and tray bottom installs 4 deflecting rollers; When tank circuit is after triggering system triggers, storage capacitor discharges, through harmonic unit, and optional waveform needed for exportable establishing criteria.
Described two cover discharge frames comprise the ball discharge of Wu-Cu alloy respectively, and be arranged on a moveable chassis, described ball discharge adopts three gap Pulse Width Control simultaneously; Ball gap triggers employing three gap pulse firing; The adjustment of ball discharge gap adopts linear electric motors, adjustable accuracy 0.1mm; Ball gap is added with described quieter.
Have four mobile deflecting rollers bottom described measuring and analysis system, deflecting roller foreign steamer is no more than 20mm; Measuring-signal is connected to test cabinet by double shielded coaxial cable.
SPD Chinese in the present invention: Surge Protector.
BNC full name is BayonetNutConnector (bayonet nut connector, this title has vividly described this joints), is also called BritishNavalConnector.
In today that science and technology is maked rapid progress, because lightning surge and switching overvoltage transmit the electromagnetic interference (EMI) ' burr ' that often can produce up to KV level to various data, the accident that damage components and parts even cause complete machine to paralyse happens occasionally.Therefore, utilize surge generator to produce " artificial thunder and lightning " and check electronic devices and components and complete machine duty under normal operation circumstances, for choose reasonable lightning protection device provides foundation, greatly ensured the safety of data transmission system.Surge generator is in the market mostly single channel surge generator, carries out product test only under envelope test.
Consider that signalling arrangement generally adopts two-wire and multi-thread transmission (no matter being power channel or track) in real work, indirect lightning strike can not only hit on single line, consider that railway research institute and Shanghai Guan Tu lightning protection Science and Technology Ltd. R & D Cooperation go out two-circuit surge generator based on this kind, follow that " shop experiment is more thin more complete, rig-site utilization is safer, to be out of order lesser " principle, for the approach that thunder and lightning invades signalling arrangement, speed and energy, and different design circuits, select signalling arrangement easily by the element of porch invaded, and that simulation laboratory test does is thinner, true more close to environment, onsite application just can lack and even not be out of order.
In order to make China's lightning protection industry more specification, recording clamp voltage when developing development weak current equipment protector must carry out simulation lightning test under complete machine dynamic operation, providing foundation for formulating protection circuit product standard.Two-circuit surge generator is for the complete machine in transmitting procedure, when preventing from impacting, change in resistance is on the impact of waveform, two-circuit is carefully protected waveform and amplitude and is comprised the different of electric current and voltage, can be recorded by measuring-controlling and analyzing system, in transmission equipment dynamic operation, the residual voltage of carrying out impulse test selects the type of the thin protection of complete machine.(if such as only according to the thin protection that the residual voltage of carrying out impulse test under transmission equipment static state is determined, time make equipment produce obstacle when normal operation)
Therefore, the present invention collects charging device, two-circuit electric discharge device, measuring-controlling and analyzing system, is applied to Long line transmission lightning-protection system, realizes two-circuit and exports thunder and lightning waveform simultaneously, the lightning protection components and parts tests such as electrode surge arrester can also be carried out, fill up the blank that generating means is impacted in domestic and international two-circuit.
The object of the invention is to design a kind of novel two-circuit surge generator, solve the problem.
To achieve these goals, the technical solution used in the present invention is as follows:
Two-circuit surge generator comprises (1) charging device part; (2) body energy storage device; (3) triggering system device; (4) two-circuit electric discharge device; (5) harmonic network equipment; (6) test product table; (7) Survey control analytic system;
Two-circuit surge generator must solve charging safety, synchronous trigging control, and asynchronous Time-delayed trigger controls, two-circuit discharge technology, the gordian techniquies such as multiple waveforms generation and adjustment.Wherein preventing high-voltage pulse from disturbing in trigging control is difficult point and emphasis.
Two-circuit surge generator building block:
This complete equipment is a set of collection surge voltage, dash current, composite wave, the impulse test generator that two-circuit is integrated, comprises charging device, body energy storage device, triggering system device, two-circuit ball discharge gap, harmonic network equipment, test product table, Survey control analytic system.
Charging device part comprises: insulating cylinder oil immersed type charging transformer, SCR control high-voltage rectification silicon stack, dipole inversion, movable pedestal and earthing device.
Advantage: electric power system voltage stabilizing, Secure isolation.
Principle: charging device two-circuit exports, and charging device is one-piece construction, and bridge rectifier is arranged on oil-immersed type transformer inside, divides two-way to be connected to capacitor by transformer two sleeve pipes through 2 protective resistances; High voltage silicon rectifier stack positive-negative polarity is changed automatically and charge protection resistance is arranged in the casing of transformer; integral installation is on movable charging dolly; series and parallel compensated resistance is arranged in the plug-in resistance box of transformer, and resistance box installs 2 radiator fans additional, and louvre is left at resistance box top.
Body energy storage device comprises: capacitor, protective resistance.
Advantage: be added with a protective resistance above each capacitor; guarantee charge balancing; capacitor (low electrification appearance) is vertically placed; assembled arrangement mode takes fan-shaped array; structure makes packaged type; each capacitance group is contained on a moveable chassis, and tray bottom installs 4 deflecting rollers, so that move integrally.
Principle: when tank circuit is after triggering system triggers, storage capacitor discharges, through harmonic unit, optional waveform needed for exportable establishing criteria.
Triggering system device comprises: trigger button, anti-high-voltage pulse interference triggered device, synchronous or asynchronous regulating device.
Advantage: under anti-high pressure disturbance state, can accomplish that " zero " error two-circuit is synchronously triggered or sets the free adjustment asynchronous triggered time according to demand.
Principle: make triggering system device action after button actions, makes ball gap light a fire, and two-circuit can synchronously or asynchronous ignition.
Two-circuit ball discharge gap comprises: two cover discharge frames; Supporting linear electric motors; Quieter.
Advantage: discharge mode: can synchronous discharge, also can asynchronously discharge (during the type approval test of two-circuit, can synchronously trigger rear electric discharge, asynchronous triggering discharges is done in Ye Ke mono-tunnel time delay); Motor regulates ball discharge gap automatically, safe and convenient; Be added with isolation quieter, electric discharge noise dropped to minimum.
Principle: two discharge frames comprise the electric discharge sphere of Wu-Cu alloy respectively, be arranged on a moveable chassis, ball discharge adopts three gap Pulse Width Control simultaneously; Ball gap triggers employing three gap pulse firing; Withstand shock big current ability is strong; The adjustment of ball discharge gap adopts linear electric motors, adjustable accuracy 0.1mm, and actuating range is large, good reliability; Ball gap is added with isolation quieter, electric discharge noise is dropped to minimum.
Harmonic network equipment
Advantage: adopt the noninductive coiling of nichrome resistance band, various waveform (voltage wave, current wave, complex wave) can be adjusted arbitrarily.
Principle: by harmonic network after triggering discharges, exports required random waveform.
Test product table
Advantage: use a transformer, pressure regulator, 2 road transmission lines or 2 SPD test products can be connected to by isolator simultaneously, single channel also can be selected to export; Test product desktop is added with organic glass protective cover, both can observe situation during test product impulse test, the unnecessary injury caused of exploding when can prevent again having impulse test during test product.
Principle: test cover uses plexiglass tent, and residual voltage voltage divider is included, each road measuring voltage, electric current adopt twin-core shielding line to export panel to by BNC.
Survey control analytic system part comprises: automatically control triggering system and measuring and analysis system; Wherein automatically control trigger element to be made up of standard configuration devices such as color liquid crystal touch screen, control knob/switch, PLC, control device, performance elements, measuring and analysis system is by industrial computer, oscillograph, Pearson coil, self-control residual voltage voltage divider and Measurement and analysis software, touch-screen, PLC control system, test figure shows, and analyzes, process; 4 mobile deflecting rollers are arranged at bottom, and deflecting roller foreign steamer is no more than 20mm.
Advantage: operating personnel are operated easily by image on touch-screen, all controlling functions can be completed, comprise voltage to arrange, charging, ground connection, failure reset, electric discharge positive-negative polarity changed automatically, trigger, DC voltage display, state display, discharge time, inter-spike intervals, the function such as sparking voltage; Be provided with the protection automatically that has a power failure; Be provided with safety door protection, personal safety in protection examination district; Measuring-signal is connected to test cabinet by double shielded coaxial cable.
Principle: two-circuit is impacted generating means and relied on more advanced Measurement and analysis control software design system, can enough realize its test function.In generation systems design and establishing process, adopt intelligentized design, set up based on PLC, industrial computer and oscillographic expert analyzing system, for analysis of experiments provides powerful soft environment.
Principle of work:
Generator principle is lightning protection experiment surge generator, simulation lightning voltage, simulation lightning current
The envelope test (single loop impulse test) of complete machine:
Side knock: when transmission equipment A end leap high pressure time, B end need ground connection; When B end leaps high pressure, A ground connection; As Fig. 8
Impact of collision: when A, B shorted on both ends backlash high pressure of transmission equipment, pressure of leaping high over the ground (high pressure generator must have a ground connection when doing impulse test); As Fig. 9
(1) dynamic test (two-circuit impulse test) of complete machine:
After A, B two ends of tested device add lightning protection measures and under normal work of starting shooting, the examination of high-pressure impact simultaneously lightning protection effect is more close true.As Figure 10:
(2) Long line transmission equipment complete machine dynamic test:
Long line transmission equipment is after adding lightning protection measures and do complete machine dynamic impact test under normal operation.As Figure 11:
Technique effect:
Under simulation thunderbolt condition, transmission equipment formulates development standard at the normal clamp voltage recording protection at different levels that runs, and following test waveform therefore first can be selected to test.
great current impact test waveform:
The impulse current waveform of the various amplitude in two-circuit can be produced
(1) 8 ± 10% μ s/20 ± 10% μ s are exported, (5kA ~ 120kA) ± 10% dash current ripple;
(2) two-circuit is triggered: controlled Time delay;
(3) stackable power frequency Uc, power supply nominal current capacity >=5A, Uc phasing degree is adjustable (interoperation load test)
(4) 1.2 ± 30% μ s/50 ± 20% μ s are exported, (4kV ~ 30kV) ± 3% surge voltage ripple
dynamic test waveform:
(1) 4 ± 30% μ s/300 ± 20% μ s are exported, (3kV ~ 20kV) ± 10% surge voltage ripple
(2) 10 ± 30% μ s/200 ± 20% μ s are exported, (3kV ~ 20kV) ± 10% surge voltage ripple
(3) 10 ± 30% μ s/700 ± 20% μ s are exported, (3kV ~ 20kV) ± 3% surge voltage ripple
(4) export 10 ± 30% μ s/1000 ± 20% μ s, 20A ~ 200A single loop dash current exports
small area analysis impulse test waveform parameter:
(1) 8 ± 10% μ s/20 ± 10% μ s are exported, (0.5kA ~ 5kA) ± 10% dash current ripple
(2) 1.2 ± 30% μ s/50 ± 20% μ s are exported, (0.5kV ~ 5kV) ± 3% surge voltage ripple
(3) 4 ± 30% μ s/300 ± 20% μ s are exported, (0.5kV ~ 4kV) ± 10% surge voltage ripple
(4) 10 ± 30% μ s/200 ± 20% μ s are exported, (0.5kV ~ 4kV) ± 10% surge voltage ripple
(5) 10 ± 30% μ s/700 ± 20% μ s are exported, (0.5kV ~ 4kV) ± 3% surge voltage ripple
export composite wave:
(1) short-circuit current exports 8 ± 10% μ s/20 ± 10% μ s, (0.25kA ~ 10kA) ± 10%;
Open-circuit voltage exports 1.2 ± 30% μ s/50 ± 20% μ s, (0.5kV ~ 20kV) ± 3% surge voltage ripple;
(2) short-circuit current exports 5 ± 20% μ s/300 ± 20% μ s, (12.5A ~ 125A) ± 10%;
Open-circuit voltage exports 10 ± 30% μ s/700 ± 20% μ s, (0.5kV ~ 5kV) ± 3% surge voltage ripple;
(3) two-circuit discharge current can delays time to control 1 ~ 100 μ s, sends two-way pulse according to prescription device simultaneously;
Advantage characteristic:
Two-circuit surge generator can carry out the vertical and horizontal impulse test of the lightning wave of simulating various different amplitude under transmission equipment normally runs, and improves the deficiency that single loop impacts;
Two-circuit surge generator triggering mode: can be synchronous, also can asynchronous (during the type approval test of two-circuit, can synchronously trigger, also Ke mono-tunnel adds time delay and does asynchronous triggering);
Two-circuit surge generator, two-way can discharge separately, also can parallel discharge (can produce single channel complex wave, also can produce two-circuit complex wave);
Two-circuit surge generator harmonic unit: waveform can be selected arbitrarily by establishing criteria;
Two-circuit surge generator subjects: lightning protection component and lightning protection component test can be done, also can do complete machine dynamic test;
Two-circuit surge generator dynamic transmission: single loop can be used alone voltage wave or current wave, two-circuit can be triggered by synchronous and asynchronous;
Two-circuit surge generator auto polarity conversion: motor automatic polarity, conveniently does positive-negative polarity test to each test product, safe and convenient;
Beneficial effect of the present invention can be summarized as follows:
(1) the present invention collects surge voltage, dash current, complex wave, the impulse test generator that two-circuit or single loop are integrated;
(2) in two-circuit carefully protection: after impacting prime protection leak into " burr " waveform in transmission equipment and amplitude (comprising voltage and electric current) different storage oscilloscope can be had to record after provide selection ground by actual tests result;
(3) the present invention is directed to the two-circuit surge generator of signal system and electronic equipments lightning protection unique design, modular construction, this is significant to shocking preventing technology development;
(4) by the foundation of two-circuit surge generator, for lightning protection new technology development and test provide high-caliber comprehensive test platform, lightning protection industry technology research level can be promoted, for the research and development of all kinds of new material, new construction and new equipment provide science and technology support;
(5) by laboratory environment produce with nature thunder and lightning closer to lightning stroke process, exportable two-circuit dash current (can synchronous or asynchronous triggering), the effect such as thermal effect, stress effect, galvanomagnetic effect that observation thunderbolt produces, seek thunder and lightning to propagate and the mechanism of action, research Lightning Prevention Technique, tests to existing thunderstorm electricity protective device, and record improves test figure, for research Lightning Disaster, exploitation lightning protection new technology provides reliable data and information.
(6) study thunder and lightning to occur and the mechanism of action, improving shocking preventing technology level is one of target of thunder and lightning test and research field pursuit.
Accompanying drawing explanation
Fig. 1 two-circuit surge generator vertical view.
Fig. 2 two-circuit surge generator front elevation.
Fig. 3 two-circuit surge generator side view.
Fig. 4 Survey control analytic system front elevation.
Fig. 5 two-circuit generator principle circle figure.
Fig. 6 is single loop impulse test schematic diagram.
Fig. 7 is two-circuit test schematic diagram.
The dynamic test side knock of Fig. 8 complete machine.
The dynamic test impact of collision of Fig. 9 complete machine.
The dynamic test (two-circuit impulse test) of Figure 10 complete machine.
Figure 11 Long line transmission equipment complete machine dynamic test.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of two-circuit surge generator as depicted in figs. 1 and 2, comprises charging device 1, body energy storage device 2, triggering system device 3, two-circuit ball discharge gap 4, harmonic network equipment 5, test product table 6 and Survey control analytic system 7; Described charging device 1 comprises insulating cylinder oil immersed type charging transformer, SCR control high-voltage rectification silicon stack, earthing device and polarity turns, movable pedestal; Described body energy storage device 2 comprises capacitor and protective resistance; Be added with a protective resistance above each capacitor, described capacitor is that low electrification holds and vertical placement, and assembled arrangement mode takes fan-shaped array, and structure is packaged type; Described triggering system device 3 comprises trigger button, anti-high-voltage pulse interference triggered device and synchronous or asynchronous regulating device; Described triggering system device 3 makes triggering system device 3 action after button actions, and ball gap is lighted a fire, and two-circuit can synchronously or asynchronous ignition; Described two-circuit ball discharge gap 4 comprises supporting linear electric motors, quieter and two cover discharge frames; Described two-circuit ball discharge gap 4 discharge mode is synchronous discharge or asynchronous electric discharge; Motor regulates ball discharge gap automatically; Described harmonic network equipment 5, adopts the noninductive coiling of nichrome resistance band, can adjust arbitrarily voltage wave, current wave and complex wave; By harmonic network after triggering discharges, export required random waveform; Described test product table 6 uses a transformer and a pressure regulator, can be connected to two-way transmission line or two SPD test products by isolator simultaneously, and single channel also can be selected to export; The desktop of described test product table 6 is added with organic glass protective cover, and residual voltage voltage divider is included, and each road measuring voltage, electric current adopt twin-core shielding line to export panel to by BNC; Described Survey control analytic system 7 part comprises control triggering system and measuring and analysis system automatically; Wherein, described automatic control triggering system comprises color liquid crystal touch screen, control knob/switch, PLC, control device and performance element; Described measuring and analysis system comprises industrial computer, oscillograph, Pearson coil, residual voltage voltage divider, touch-screen and PLC control system.
In the embodiment be more preferably, described charging device 1 is two-circuit output, one-piece construction; It is inner that bridge rectifier is arranged on described insulating cylinder oil immersed type charging transformer, divides two-way to be connected to capacitor by two sleeve pipes of described insulating cylinder oil immersed type charging transformer through 2 protective resistances; Described SCR control high-voltage rectification silicon stack positive-negative polarity is changed automatically and charge protection resistance is arranged in the casing of described insulating cylinder oil immersed type charging transformer, and integral installation is on movable charging dolly; Series and parallel compensated resistance is arranged in the plug-in resistance box of described insulating cylinder oil immersed type charging transformer, and resistance box installs 2 radiator fans additional, and louvre is left at resistance box top.
In the embodiment be more preferably, each described Capacitor banks is contained on a moveable chassis, and tray bottom installs 4 deflecting rollers; When tank circuit is after triggering system triggers, storage capacitor discharges, through harmonic unit, and optional waveform needed for exportable establishing criteria.
In the embodiment be more preferably, described two cover discharge frames comprise the ball discharge of Wu-Cu alloy respectively, and be arranged on a moveable chassis, described ball discharge adopts three gap Pulse Width Control simultaneously; Ball gap triggers employing three gap pulse firing; The adjustment of ball discharge gap adopts linear electric motors, adjustable accuracy 0.1mm; Ball gap is added with described quieter.
In the embodiment be more preferably, have four mobile deflecting rollers bottom described measuring and analysis system, deflecting roller foreign steamer is no more than 20mm; Measuring-signal is connected to test cabinet by double shielded coaxial cable.
Logical relation: in test preliminary work, first by parallel with DUT (test product to be measured, complete machine to be measured) for the two-circuit ball discharge gap 4 of two-way generator, checks Pass Test condition.After test is ready for; press beginning test button; charging device 1 part divides two-way to be connected to body energy storage device 2 pairs of capacitors by transformer two sleeve pipes through 2 protective resistances to charge, and multiple shock test interval time and charging voltage can be arranged by the touch-screen in advance in Survey control analytic system 7.After charging voltage has reached the value of setting, body energy storage device 2 just triggers automatically through triggering system device 3, two-circuit can synchronous or asynchronous triggering igniting, after the igniting of ball discharge gap, storage capacitor starts electric discharge, through harmonic network equipment 5, export optional waveform needed for establishing criteria by two-circuit ball discharge gap 4, the Measurement and analysis report of experimental result all can obtain in measuring and analysis system.
Operating process:
As shown in Figure 6, single loop impulse test: complete machine impulse test, impacting with high pressure equipment one end is ground, single loop 8/20 μ s impulse current generator, first 20kA is carried out to A-E bis-pole and impact through-flow test, carry out 20kA to B-E bis-pole again and impact through-flow test, so E is extremely upper just with the through-flow examination of the impact of 20kA;
As shown in Figure 7, be extended to: two-circuit impact device overall test: two-circuit 8/20 μ s impulse current generator, 20kA can be carried out to A-E and B-E simultaneously impact through-flow test, so E extremely on be more close truly with the through-flow examination of the impact of 40kA;
Two-circuit generator, lightning impulse test can be carried out in complete machine normally runs, physical device is occur in normal operation suffering lightning impulse, therefore two-circuit overall test is more close to truly, in the whole set equipment process of the test of two-circuit, its clamp voltage can be tested to the various storage oscilloscopes of the lightning protection components and parts at different levels applied, to observe the rationality that various lightning protection circuit (components and parts) applies, the circuit that the transmission entrance place of reply equipment (particularly microelectronic device) applies and the lightning protection properties whether self lightning protection properties circuit rationally provides provide foundation.
The present invention is described in detail in preferred embodiment above by concrete; but those skilled in the art should be understood that; the present invention is not limited to the above embodiment; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a two-circuit surge generator, is characterized in that: comprise charging device, body energy storage device, triggering system device, two-circuit ball discharge gap, harmonic network equipment, test product table and Survey control analytic system;
Described charging device comprises insulating cylinder oil immersed type charging transformer, SCR control high-voltage rectification silicon stack, earthing device and polarity turns, movable pedestal;
Described body energy storage device comprises capacitor and protective resistance; Be added with a protective resistance above each capacitor, described capacitor is that low electrification holds and vertical placement, and assembled arrangement mode takes fan-shaped array, and structure is packaged type;
Described triggering system device comprises trigger button, anti-high-voltage pulse interference triggered device and synchronous or asynchronous regulating device; Described triggering system device makes triggering system device action after button actions, and ball gap is lighted a fire, and two-circuit can synchronously or asynchronous ignition;
Described two-circuit ball discharge gap comprises supporting linear electric motors, quieter and two cover discharge frames; Described two-circuit ball discharge gap discharge mode is synchronous discharge or asynchronous electric discharge; Motor regulates ball discharge gap automatically;
Described harmonic network equipment, adopts the noninductive coiling of nichrome resistance band, can adjust arbitrarily voltage wave, current wave and complex wave; By harmonic network after triggering discharges, export required random waveform;
Described test product table uses a transformer and a pressure regulator, can be connected to two-way transmission line or two SPD test products by isolator simultaneously, and single channel also can be selected to export; The desktop of described test product table is added with organic glass protective cover, and residual voltage voltage divider is included, and each road measuring voltage, electric current adopt twin-core shielding line to export panel to by BNC;
Described Survey control analytic system part comprises control triggering system and measuring and analysis system automatically;
Wherein, described automatic control triggering system comprises color liquid crystal touch screen, control knob/switch, PLC, control device and performance element;
Described measuring and analysis system comprises industrial computer, oscillograph, Pearson coil, residual voltage voltage divider, touch-screen and PLC control system.
2. two-circuit according to claim 1 surge generator, is characterized in that: described charging device is that two-circuit exports, one-piece construction; It is inner that bridge rectifier is arranged on described insulating cylinder oil immersed type charging transformer, divides two-way to be connected to capacitor by two sleeve pipes of described insulating cylinder oil immersed type charging transformer through 2 protective resistances; Described SCR control high-voltage rectification silicon stack positive-negative polarity is changed automatically and charge protection resistance is arranged in the casing of described insulating cylinder oil immersed type charging transformer, and integral installation is on movable charging dolly; Series and parallel compensated resistance is arranged in the plug-in resistance box of described insulating cylinder oil immersed type charging transformer, and resistance box installs 2 radiator fans additional, and louvre is left at resistance box top.
3. two-circuit according to claim 1 surge generator, is characterized in that: each described Capacitor banks is contained on a moveable chassis, and tray bottom installs 4 deflecting rollers; When tank circuit is after triggering system triggers, storage capacitor discharges, through harmonic unit, and optional waveform needed for exportable establishing criteria.
4. two-circuit according to claim 1 surge generator, is characterized in that: described two cover discharge frames comprise the ball discharge of Wu-Cu alloy respectively, and be arranged on a moveable chassis, described ball discharge adopts three gap Pulse Width Control simultaneously; Ball gap triggers employing three gap pulse firing; The adjustment of ball discharge gap adopts linear electric motors, adjustable accuracy 0.1mm; Ball gap is added with described quieter.
5. two-circuit according to claim 1 surge generator, is characterized in that: have four mobile deflecting rollers bottom described measuring and analysis system, deflecting roller foreign steamer is no more than 20mm; Measuring-signal is connected to test cabinet by double shielded coaxial cable.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107422239A (en) * | 2017-09-27 | 2017-12-01 | 重庆大学 | The more dash current discharge test device and methods of soil |
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| CN110045164A (en) * | 2019-05-14 | 2019-07-23 | 云南电网有限责任公司电力科学研究院 | The impulse voltage generator trigger device of more measuring device precise synchronizations |
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