CN105929275A - High-voltage electric appliance test loop trigger system and method applying pulse transformer technology - Google Patents
High-voltage electric appliance test loop trigger system and method applying pulse transformer technology Download PDFInfo
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- CN105929275A CN105929275A CN201610279800.0A CN201610279800A CN105929275A CN 105929275 A CN105929275 A CN 105929275A CN 201610279800 A CN201610279800 A CN 201610279800A CN 105929275 A CN105929275 A CN 105929275A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
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- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a high-voltage electric appliance test loop trigger system and method applying a pulse transformer technology. The system comprises an ignition apparatus body and a two-stage trigger loop, wherein the two-stage trigger loop comprises a first-stage trigger unit and a second-stage trigger unit, and a voltage regulator, a charging voltage device and a rectification and protection loop which are successively connected; and the ignition apparatus body at least comprises two pairs of graphite sphere gaps. According to the invention, a two-stage trigger loop system taking a two-stage pulse transformer as a core is employed, since high-voltage pulse voltages are high, the penetration success rate is high, the overall dispersibility of the trigger system is small and can be 50[mu]s below, the trigger control precision is substantially improved compared to the prior art, the spacing of the graphite sphere gaps can be reliably triggered within a scope of 50mm, the trigger success rate under low charging voltages is especially substantially improved, at the same time, the flexible adjustment advantage of the sphere gaps guarantees the reliability of a trigger link in a high-voltage electric appliance test, the test time is greatly reduced, the test efficiency is improved, and the labor intensity is mitigated.
Description
Technical field
The present invention relates to AC-HVDC High-Voltage Electrical Appliances experimental technique, be specially one application pulse transforming
System and method is triggered in the High-Voltage Electrical Appliances test loop of device technology.
Background technology
Super extra-high voltage electrical apparatus test is usually applied the mode of synthetic test complete test, and trigger system
Being requisite important triggering device in synthetic test, whether triggering system can be touched the most timely
Sending out, trigger ball ball is away from the most suitable, when whether the resultant current after triggering can successfully run through and run through
The precision all extreme influence carved are to the success rate of synthetic test.Prior art is for using ball away from adjustable triggering
Ball, is directed to different electric pressure test and regulates suitable ball away to determine insulation and to trigger distance.But
Can't solve present in the test of existing High-Voltage Electrical Appliances, the system that triggers is because ball stand-off distance is from slightly smaller and pressure
Cause in charging process self breakdown in advance not, or owing to ball stand-off distance is from slightly larger in trigger process
Cannot successfully run through, though or ball gap run through owing to causing the dispersibility running through the moment the biggest apart from bigger than normal
Problem.
Summary of the invention
For problems of the prior art, the present invention provides a kind of height applying pulse transformer technology
Piezoelectricity device test loop trigger system and method, it is possible to bigger ball away from the case of tolerate high voltage, carry
Height runs through success rate, and reduces the dispersibility of triggering system.
The present invention is to be achieved through the following technical solutions:
System is triggered, including igniter in a kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology
Body and two-stage trigger circuit；Two-stage trigger circuit includes one-level trigger element and two-stage triggering unit, with
And the pressure regulator, charged electrical depressor and the rectification that are sequentially connected with and protective loop；One-level trigger element includes one
Level pulse transformer, and it is connected to the external trigger instruction signal of telecommunication of one-level pulse transformer low-pressure side；
Two-stage triggering unit includes that secondary vein rushes transformator, and high-voltage capacitor and triggered gap；High-voltage capacitance
Device one end is connected with the outfan of protective loop with rectification, and the other end is connected to secondary vein and rushes the low of transformator
Pressure side；Triggered gap one end is connected with the high-pressure side of one-level pulse transformer, and the other end becomes with secondary vein punching
The earth terminal of depressor low-pressure side connects；Igniter body at least includes two pairs of graphite nodule gaps；Last is right
Graphite nodule gap is through carrying ground；The junction point of adjacent two pairs of graphite nodule gaps connects DC voltage insulation blocking dress
The one end put, the other end of DC voltage isolating and protecting device and secondary vein rush the high-pressure side output of transformator
End connects.
Preferably, DC voltage isolating and protecting device includes protective resistance and the protection electric capacity being sequentially connected with.
Preferably, the high-pressure side of one-level pulse transformer is provided with the electric capacity for protection circuit.
Preferably, every pair of graphite nodule gap is parallel with one group and all presses element.
Further, all pressure elements use equalizing resistance and/or equalizing capacitance.
A kind of High-Voltage Electrical Appliances test loop triggering method applying pulse transformer technology, based on institute of the present invention
The triggering system stated, comprises the steps,
Step 1, by the pressure regulator being sequentially connected with, charged electrical depressor and rectification with protective loop to high pressure
Capacitor charges；
Step 2, when high-voltage capacitor charging reaches predetermined value, the input external trigger instruction signal of telecommunication,
The external trigger instruction signal of telecommunication produces one-level pulse signal through one-level pulse transformer；
Step 3, triggered gap is triggered by one-level pulse signal, and high-voltage capacitor is through triggered gap and two
Level pulse transformer low-pressure side constitutes loop, and secondary vein rushes the high-pressure side of transformator and produces secondary vein punching letter
Number, secondary vein rushes signal and is input to adjacent two pairs of stones as high-voltage pulse through DC voltage isolating and protecting device
The junction point of tampon gap；
Step 4, adjacent two pairs of graphite nodule gaps are triggered by high-voltage pulse, complete High-Voltage Electrical Appliances test loop
Trigger.
Compared with prior art, the present invention has a following useful technique effect:
The present invention uses the two-stage trigger circuit system with two-stage pulse transformer as core, due to its high pressure
Pulse voltage is high, runs through success rate high, triggers system entirety dispersibility little, can touch within 50us
Sending out the more original technology of control accuracy to be greatly improved, the spacing of graphite nodule gap can be in the range of 50mm
Reliable triggering, triggers success rate and is greatly improved under the lowest charging voltage, ball is away from the most adjustable simultaneously
Advantage ensure that High-Voltage Electrical Appliances test triggers the reliability of link, thus be greatly saved test time
Between with lifting test efficiency, also mitigate the labor intensity of testing crew simultaneously, graphite nodule gap body saves
Core and the dielectric on ball surface, simplify triggering apparatus structure, eliminate operating maintenance graphite nodule
The inconvenience of core, improves equipment operational reliability, and the personnel that also eliminate while time-consuming enter back
The potential safety hazard on road.The completing reducing in test preparation and process of the test of the present invention in sum
Interval time, lifting test efficiency, improves controlling test precision, reduces testing crew labor intensity, protect
The personal safety of barrier testing crew is the most significant.Meanwhile, two-stage trigger circuit greatly reduces equipment
The parameter request of element so that component reliability and cost are substantially reduced, version and floor space
The most integrated, the design requirement of Pass Test room.
Accompanying drawing explanation
Fig. 1 is the structure connection diagram of igniter body described in present example.
Fig. 2 is that the structure of two-stage trigger circuit described in present example connects block diagram.
Fig. 3 is the flow chart described in present example.
In figure, graphite nodule gap 1, equalizing resistance 2, pressure regulator 3, charged electrical depressor 4, rectification and protection
Loop 5, one-level pulse transformer 6, secondary vein rushes transformator 7, triggered gap 8, high-voltage capacitor
9。
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be to the present invention
Explanation rather than restriction.
The present invention triggers system in a kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology and includes igniting
Device body and two-stage trigger circuit；As it is shown in figure 1, igniter body one end is with to be electrically charged device pre-
The major loop charging capacitor first charged is connected, and the other end connects load.In this preferred embodiment, employing two is right
Graphite nodule gap 1；Igniter body relies on two graphite nodule gap 1 connects major loop at the trial, every pair
Graphite nodule gap 1 includes two graphite hemisphere, and two pairs of graphite nodule gap 1 clearance distances are almost identical, by excellent
Choosing uses all pressures element of equalizing resistance 2 all to press.Two-stage as Triggering Control System triggers back
Road, being inputted by the junction point of adjacent two pairs of graphite nodule gaps 1 for the high-voltage pulse triggered of output, will
Graphite gaps punctures.Igniter body uses insulating supporting over the ground, and AC/DC during resistance test is high
Pressure.
As in figure 2 it is shown, two-stage trigger circuit includes one-level trigger element and two-stage triggering unit, Yi Jiyi
The pressure regulator 3 of secondary connection, charged electrical depressor 4 and rectification and protective loop 5；Preferably use one-level
20kV trigger element and two grades of 500kV trigger elements；Its workflow, triggering side the most of the present invention
Method flow process is as shown in Figure 3.
1, one-level 20kV trigger element.
Inputted to one-level pulse transformer 6 low-pressure side by the external trigger instruction signal of telecommunication, and in high pressure flank attack
Wear the triggered gap 8 in first order trigger element loop；
The secondary vein connecting two-stage triggering unit rushes the low-pressure side loop of transformator 7, produces the electricity of 10kV
Pulse signal.
The triggered gap 8 in one-level trigger element loop is connected on the secondary vein of two-stage triggering unit and rushes transformator
In low-pressure side loop, after it is punctured by one-level pulse signal, two-stage triggering unit low-pressure side loop is immediately
Connect.
2, two grades of 500kV trigger elements.
Connect major loop grey spots fireball gap；Secondary vein rushes after voltage device 7 low-pressure side loop is switched on,
The high-voltage pulse of 300kV is loaded in major loop graphite nodule gap in the middle of two of igniting on graphite hemisphere,
Two middle graphite hemisphere, two pairs of graphite nodule gaps 1 are punctured by high-voltage pulse.
Major loop is connected；The igniter body being made up of two pairs of graphite nodule gaps 1 and adnexa thereof, test is opened
Isolate the major loop charging capacitor precharged after Dong, receive the high-voltage pulse of two-stage triggering unit
After, the breakdown electric discharge of graphite nodule gap, major loop has connected test.
Claims (6)
1. a system is triggered in the High-Voltage Electrical Appliances test loop applying pulse transformer technology, and its feature exists
In, including igniter body and two-stage trigger circuit；
Two-stage trigger circuit includes one-level trigger element and two-stage triggering unit, and the pressure regulation being sequentially connected with
Device (3), charged electrical depressor (4) and rectification and protective loop (5)；
One-level trigger element includes one-level pulse transformer (6), and is connected to one-level pulse transformer
(6) the external trigger instruction signal of telecommunication of low-pressure side；
Two-stage triggering unit includes that secondary vein rushes transformator (7), and high-voltage capacitor (9) and triggering
Gap (8)；High-voltage capacitor (9) one end is connected, separately with the outfan of rectification with protective loop (5)
One end is connected to secondary vein and rushes the low-pressure side of transformator (7)；Triggered gap (8) one end and one-level pulse
The high-pressure side of transformator (6) connects, and the other end and secondary vein rush the earth terminal of transformator (7) low-pressure side
Connect；
Igniter body at least includes two pairs of graphite nodule gaps (1)；Last is to graphite nodule gap (1) warp
Carrying ground；The junction point of adjacent two pairs of graphite nodule gaps (1) connects DC voltage isolating and protecting device
One end, the high-pressure side that the other end of DC voltage isolating and protecting device and secondary vein rush transformator (7) is defeated
Go out end to connect.
A kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology the most according to claim 1
Triggering system, it is characterised in that DC voltage isolating and protecting device include the protective resistance that is sequentially connected with and
Protection electric capacity.
A kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology the most according to claim 1
Triggering system, it is characterised in that the high-pressure side of one-level pulse transformer (6) is provided with for protecting electricity
The electric capacity on road.
A kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology the most according to claim 1
Triggering system, it is characterised in that every pair of graphite nodule gap (1) is parallel with one group and all presses element.
A kind of High-Voltage Electrical Appliances test loop applying pulse transformer technology the most according to claim 4
Triggering system, it is characterised in that all pressure elements use equalizing resistance (2) and/or equalizing capacitance.
6. applying a High-Voltage Electrical Appliances test loop triggering method for pulse transformer technology, its feature exists
In, based on the triggering system described in claim 1, comprise the steps,
Step 1, by the pressure regulator (3) being sequentially connected with, charged electrical depressor (4) and rectification and protection
Loop (5) charges to high-voltage capacitor (9)；
Step 2, when high-voltage capacitor (9) charging reaches predetermined value, input external trigger instruction electricity
Signal, the external trigger instruction signal of telecommunication produces one-level pulse signal through one-level pulse transformer (6)；
Step 3, triggered gap (8) is triggered by one-level pulse signal, and high-voltage capacitor (9) is through touching
Sending out gap (8) and rush transformator (7) low-pressure side composition loop with secondary vein, secondary vein rushes transformator
(7) high-pressure side produces secondary vein and rushes signal, and secondary vein rushes signal as high-voltage pulse through DC voltage
Isolating and protecting device is input to the junction point of adjacent two pairs of graphite nodule gaps (1)；
Step 4, adjacent two pairs of graphite nodule gaps (1) are triggered by high-voltage pulse, complete High-Voltage Electrical Appliances test
The triggering in loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279800.0A CN105929275B (en) | 2016-04-28 | 2016-04-28 | A kind of High-Voltage Electrical Appliances test loop triggering system and method using pulse transformer technology |
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|---|---|---|---|
| CN201610279800.0A CN105929275B (en) | 2016-04-28 | 2016-04-28 | A kind of High-Voltage Electrical Appliances test loop triggering system and method using pulse transformer technology |
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| CN105929275A true CN105929275A (en) | 2016-09-07 |
| CN105929275B CN105929275B (en) | 2019-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109387758A (en) * | 2018-12-26 | 2019-02-26 | 中节能启源雷宇（江苏）电气科技有限公司 | A kind of major loop in synthetic test loop is lighted a fire engaging means |
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| CN105929275B (en) | 2019-01-25 |
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Effective date of registration: 20210810 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |