CN106680566A - Spark gap insulation recovery voltage detection device and detection method thereof - Google Patents
Spark gap insulation recovery voltage detection device and detection method thereof Download PDFInfo
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Abstract
The invention provides a spark gap insulation recovery voltage detection device and a detection method thereof. The device comprises a current generation apparatus, wherein the output end of the current generation apparatus is in series connection with a controllable switch K1 and then is connected in parallel with a spark gap, and is used for outputting a current to the spark gap; a voltage generation apparatus, wherein the output end of the voltage generation apparatus is in series connection with a controllable switch K2 and then is connected in parallel with the spark gap, and is used for outputting a voltage to the spark gap; a voltage-dividing apparatus which is connected in parallel with the output end of the voltage generation apparatus, and is used for detecting the output voltage of the voltage generation apparatus; and a control circuit which is connected with the voltage generation apparatus, and is used for detecting an alternating current of the output end of the voltage generation apparatus and the output voltage of a voltage adjuster, and controlling the on/off of the voltage generation apparatus according to the alternating current and the output voltage. According to the invention, a series of effective data points can be obtained in each detection process, and the device and method reduce the detection cost, and improve the detection efficiency.
Description
Technical field
The present invention relates to a kind of detection means and its detection method, in particular to a kind of spark gap insulation recovery voltage detecting dress
Put and its detection method.
Background technology
China Electric Power Research Institute is first applied to series compensation device in extra-high voltage demonstration project, although current string mends dress
Putting performance parameter can meet the engineering demand, but with the continuous development of extra-high voltage series compensation technology, successive projects are mended to string
The rated voltage of device and the requirement of rated current will more come higher, in order to improve the rated voltage and specified electricity of series compensation device
Stream, needs to further investigate the performance of extra-high voltage series compensation device.
Series compensation device is usually just to put into circuit after the circuit fault clearance again to use, but sometimes in order to improve system
Stability, may require that series compensation device was just put into circuit before circuit throws success again, this is just to the weight of series compensation device
New making time proposes higher requirement, and spark gap insulation recovery voltage is to affect series compensation device making time again
Principal element, accordingly, it would be desirable to study the insulation recovery voltage of spark gap, to improve the work of series compensation device
Reliability.
Spark gap insulation recovery voltage refer to spark gap it is breakdown after, make spark gap dielectric recover voltage.
It is the method by estimating to the detection of spark gap insulation recovery voltage in prior art carrying out, specific practice is：
Fiery gap insulation recovery time and insulation recovery voltage are speculated first；After the first arcing of spark gap, the insulation through speculating is extensive
According to insulation recovery voltage guess value applied voltage after the multiple time；The larger scope of nargin near insulation recovery voltage guess value
Pressurization measurement, reduces the scope detected step by step, until the insulating properties of spark gap are recovered, what record now applied
Voltage is spark gap insulation recovery voltage：Judge that the concrete mode that the insulating properties of spark gap are recovered whether to recover is：
When to spark gap applied voltage, if gap continues to discharge, insulating properties are not recovered.If gap is no longer put
Electricity, illustrate insulating properties recover, also illustrate more than this supposition insulator recovery time and less than this making alive under conditions of,
Spark gap insulating properties can be recovered, but this scope is excessively wide in range, if necessary to more accurate data, need to debug repeatedly
Applied voltage and time interval；Detection efficiency is especially low, and testing cost is higher；The opposing party, the pressurized operation of spark gap is logical
Cross mechanical switch to turn on and off come what is carried out, actuation time is long, multiple long-time arcing affects big to the insulating properties in gap,
The insulation recovery voltage data for obtaining is also inaccurate.
The content of the invention
The problems referred to above in the presence of in order to solve prior art, the present invention provides a kind of spark gap insulation recovery voltage detecting dress
Put and its detection method, by this detection means and detection method, detection every time can obtain a series of effective data points,
In gap after a high current arc burning, gap insulation can be obtained and recover the time dependent quantization rule of voltage, drop
Low testing cost, improves detection efficiency and accuracy in detection.
The present invention provide technical scheme be：A kind of spark gap insulation recovery voltage check device, it is theed improvement is that：Institute
Stating detection means includes：
Electric current-producing device：It is in parallel with spark gap after its output end series connection gate-controlled switch K1, for spark gap output current；
Device for generating voltage：It is in parallel with spark gap after its output end series connection gate-controlled switch K2, for spark gap output voltage；
Bleeder mechanism：The output end of device for generating voltage is connected in parallel on, for detecting the output voltage of the device for generating voltage；
Control circuit：Be connected with the device for generating voltage, for detect the device for generating voltage output end alternating current and
The output voltage of pressure regulator, and the device for generating voltage according to the alternating current and the output voltage control opening or closing
It is disconnected.
Preferably, the electric current-producing device includes current source, current lifting device and breaker；The output end of the current source and up-flow
The input of device is in parallel, and the output end of the current lifting device and breaker enter that line side is in parallel, the outgoing line side of the breaker with it is controllable
In parallel with spark gap after switch K1 series connection, the low-pressure end ground connection of the spark gap, high-pressure side connects the gate-controlled switch K1.
Preferably, the device for generating voltage includes voltage source, pressure regulator and stepup transformer；The output end of the voltage source and pressure regulation
The input of device is in parallel, and the output end of the pressure regulator is in parallel with the input of the stepup transformer, the output end string of the stepup transformer
Join in parallel with the spark gap after the gate-controlled switch K2.
Preferably, the control circuit includes current detection circuit, quick-break controlling switch and insulating power supply；The insulating power supply with
The quick-break controlling switch is connected, for providing working power to the quick-break controlling switch；The current detection circuit connects respectively
The output end of stepup transformer and the input of the quick-break controlling switch are connect, for detecting the electric current of the booster output, and will
Detection electric current is transferred to the quick-break controlling switch；Quick-break controlling switch voltage according to the detection current control is produced
The output of device.
Further, the current detection circuit includes passive current transformer, rectification circuit, shunt circuit and optical fiber transceiving circuit；
The input of the passive current transformer is connected on the connection line between booster output and spark gap low-pressure end, its
Output end is in parallel with the input of rectification circuit；The output end of the rectification circuit is in parallel with the input of shunt circuit；Described point
The output end of current circuit is in parallel with the input of the optical fiber transceiving circuit；The output end of the optical fiber transceiving circuit by optical fiber with
The input connection of the quick-break controlling switch.
Further, the passive current transformer detects the alternating current of the stepup transformer output, and the alternating current is transmitted
To the rectification circuit；The alternating current is converted to and export after DC current to the shunt circuit by the rectification circuit；Institute
State shunt circuit will the DC current shunt after export to the optical fiber transceiving circuit, the optical fiber transceiving circuit will be received
DC current signal is converted to after optical signal by Optical Fiber Transmission to the quick-break controlling switch.
Further, the shunt circuit includes resistance R1 and R2 and Diode series branch road；The resistance R1 and described two
It is in parallel with the output end of the rectification circuit after the parallel connection of pole pipe series arm；One end series resistance R2 of the Diode series branch road,
The other end is grounded, the input of the optical fiber transceiving circuit in parallel between the other end and earth terminal of the resistance R2.
Further, quick-break controlling switch includes voltage over zero measure loop, photoelectric switching circuit, control chip, driving and protects
Protection circuit and power switch；The input of the voltage over zero measure loop is in parallel with the output end of pressure regulator, its output
End is connected with the control chip, for detecting the output voltage of the pressure regulator, and the voltage for detecting is sent into the control
Coremaking piece；The input of the photoelectric switching circuit is connected by optical fiber with the output end of the optical fiber transceiving circuit, its output end
It is connected with the control chip, be transferred to after current signal control for the optical signal of the optical fiber transceiving circuit output to be converted to
Chip；The control chip is connected by the Drive Protecting Circuit with the control end of the power switch, the power switch with
The output end series connection of pressure regulator；The control chip is defeated according to the current signal and the pressure regulator of the optical fiber transceiving circuit output
The voltage signal for going out controls the power switch and turns on and off.
Preferably, the gate-controlled switch K1 and gate-controlled switch K2 are 35KV breakers；The output end of the divider and recorded broadcast
Equipment is connected, and the voltage of the divider detection is by the recorded broadcast device analysis and record.
Another object of the present invention is to provide a kind of spark gap insulation recovery voltage detection method, methods described includes：To fire
Flower gap is installed by fuse；Guarantee that electric current-producing device and device for generating voltage disconnect；Turn-on current generation device, to the spark
Gap input current；After spark gap occurs electric current arcing, the electric current-producing device is disconnected, connect the voltage and produce dress
Put, to the spark gap input voltage；The output end current of the device for generating voltage and the output voltage of pressure regulator are detected,
When it is pulse current to detect the output current, power switch is disconnected, when the output voltage zero passage for detecting the pressure regulator
When, connect the power switch；Record the output voltage of the device for generating voltage；It is described after the power switch is connected
When the output end current of device for generating voltage is 0, the output voltage of the device for generating voltage is spark gap insulation recovery electricity
Pressure.
Compared with immediate prior art, the present invention has following marked improvement：
Detection method and detection means that the present invention is provided, using digital control technology mode, when precise control gap voltage applies
Carve, and after arcing, voltage circuit is cut off immediately, shorten the gap arc time, arcing is reduced as far as possible to gap and environment
Impact, in input voltage zero crossing turning-on voltage loop again, applied voltage is at gap two ends.Between being recorded according to oscillograph
Gap voltage waveform, can understand the process for showing that gap voltage insulating properties are recovered.Therefore the data for obtaining are more efficient, reduce
Testing cost, improves detection efficiency.
Description of the drawings
The circuit theory diagrams of the spark gap insulation recovery voltage check device that Fig. 1 is provided for the present invention；
Fig. 2 is the circuit theory diagrams of current detection circuit in Fig. 1；
Fig. 3 is the hardware block diagram of quick-break controlling switch in Fig. 1.
1- voltage sources；2- pressure regulators；3- stepup transformers；4- divider；5- gate-controlled switch K2；6- gate-controlled switch K1；7- current lifting devices；
8- current sources；9- breakers；The passive current transformers of 10-.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
In order to thoroughly understand the embodiment of the present invention, detailed structure will be proposed in following description.Obviously, the embodiment of the present invention
Execution be not limited to the specific details that those skilled in the art is familiar with.Presently preferred embodiments of the present invention is described in detail as follows,
But in addition to these detailed descriptions, the present invention can also have other embodiment.
The spark gap insulation recovery voltage check device circuit theory schematic diagram that the present invention is provided is as shown in figure 1, detection dress
Put including：
Electric current-producing device：It is in parallel with spark gap after its output end series connection gate-controlled switch K1, for spark gap output current；
Device for generating voltage：It is in parallel with spark gap after its output end series connection gate-controlled switch K2, for spark gap output voltage；
Bleeder mechanism：The output end of device for generating voltage is connected in parallel on, for detecting the output voltage of the device for generating voltage；
Control circuit：Be connected with the device for generating voltage, for detect the device for generating voltage output end alternating current and
The output voltage of pressure regulator, and the device for generating voltage according to the alternating current and the output voltage control opening or closing
It is disconnected.
The gate-controlled switch K1 and the gate-controlled switch K2 are 35KV breakers；The output end of the divider and recorded broadcast equipment
It is connected, the output voltage of the device for generating voltage of the divider detection is by the recorded broadcast device analysis and record.
The electric current-producing device includes current source, current lifting device and breaker；The output end of the current source and the input of current lifting device
End is in parallel, and the output end of the current lifting device and breaker enter that line side is in parallel, the outgoing line side and gate-controlled switch K1 string of the breaker
In parallel with spark gap after connection, the low-pressure end ground connection of the spark gap, high-pressure side connects the gate-controlled switch K1.
The device for generating voltage includes voltage source, pressure regulator and stepup transformer；The output end of the voltage source and the input of pressure regulator
End is in parallel, and the output end of the pressure regulator is in parallel with the input of the stepup transformer, and the output end series connection of the stepup transformer is described can
It is in parallel with the spark gap after control switch K2.
The control circuit includes current detection circuit, quick-break controlling switch and insulating power supply；The insulating power supply and the quick-break
Controlling switch is connected, for providing working power to the quick-break controlling switch；The current detection circuit connects respectively stepup transformer
Output end and the quick-break controlling switch input, for detecting the electric current of the booster output, and electric current will be detected
It is transferred to the quick-break controlling switch；The quick-break controlling switch according to it is described detection current control described in device for generating voltage it is defeated
Go out.
The circuit theory diagrams of the current detection circuit are as shown in Figure 2：The current detection circuit include passive current transformer,
Rectification circuit, shunt circuit and optical fiber transceiving circuit；The input of the passive current transformer be connected on booster output and
On connection line between spark gap low-pressure end, its output end is in parallel with the input of rectification circuit；The rectification circuit it is defeated
Go out end in parallel with the input of shunt circuit；The output end of the shunt circuit is in parallel with the input of the optical fiber transceiving circuit；
The output end of the optical fiber transceiving circuit is connected by optical fiber with the input of the quick-break controlling switch.
The passive current transformer detects the alternating current of the stepup transformer output, and the alternating current is transferred to described whole
Current circuit；The alternating current is converted to and export after DC current to the shunt circuit by the rectification circuit；The shunting electricity
Road will the DC current shunt after export to the optical fiber transceiving circuit, the optical fiber transceiving circuit is by the DC current for receiving
Signal is converted to after optical signal by Optical Fiber Transmission to the quick-break controlling switch.
The shunt circuit includes resistance R1 and R2 and Diode series branch road；The resistance R1 and the Diode series
It is in parallel with the output end of the rectification circuit after branch circuit parallel connection；One end series resistance R2 of the Diode series branch road, the other end
Ground connection, the input of the optical fiber transceiving circuit in parallel between the other end and earth terminal of the resistance R2；Wherein resistance R1's
Resistance is 10K Ω；The resistance of resistance R2 is 100 Ω；The Diode series branch road includes four diodes being sequentially connected in series：
D5, D6, D7, D8.
The rectification circuit includes electric capacity C1, diode D1, D2, D3 and D4, and the electric capacity C1 is connected in parallel on passive Current Mutual Inductance
The output end of device, the negative electrode of the diode D1 is connected with one end of the negative electrode of diode D3 and resistance R1, its anode with electricity
Hold one end of C1 and the anode connection of diode D2；The negative electrode of the diode D2 and the anode of diode D4 and resistance
The other end connection of R1；The negative electrode of the diode D4 connects the anode of the diode D3 and the other end of the electric capacity C1；
The capacitance of the electric capacity C1 is 33nF；The electric capacity C1 is for current signal filtering；Described diode D1, D2, D3, D4
The rectifier bridge of composition is used to for alternating current to be converted to DC current.
The optical fiber transceiving circuit includes electric capacity C2, diode D9 and fiber optical transceiver U1；The electric capacity C2 and diode D9
Its one end connects the input interface An of fiber optical transceiver U1 after parallel connection, and the other end connects the input interface Ca of fiber optical transceiver U1；
The capacitance of the electric capacity C2 is 0.1 μ F.Electric capacity C2 and diode D9 are respectively used to filter and prevent reverse voltage from passing through；Optical fiber
Spark gap current signal is converted into after optical signal transceiver U1 the photoelectric switching circuit for being sent to quick-break controlling switch.
The hardware block diagram of quick-break controlling switch is as shown in Figure 3：Quick-break controlling switch includes that voltage over zero measure loop, photoelectricity turn
Change circuit, control chip, driving and protection circuit and power switch；The input of the voltage over zero measure loop with
The output end of pressure regulator is in parallel, and its output end is connected with the control chip, for detecting the output voltage of the pressure regulator, and
The voltage for detecting is sent into the control chip；The input of the photoelectric switching circuit is by optical fiber and the optical fiber transceiving
The output end of circuit is connected, and its output end is connected with the control chip, for by the optical signal of the optical fiber transceiving circuit output
Be converted to and be transferred to after current signal control chip；The control chip is by the Drive Protecting Circuit and the power switch
Control end is connected, and the power switch is connected with the output end of pressure regulator；The control chip is defeated according to the optical fiber transceiving circuit
The current signal for going out and the voltage signal of pressure regulator output control the power switch and turn on and off.
The present invention also provides a kind of detection method realized using above-mentioned spark gap insulation recovery voltage check device, the method master
Comprise the following steps：Fuse is installed to spark gap；Guarantee that electric current-producing device and device for generating voltage disconnect；Turn-on current
Generation device, to the spark gap input current；After spark gap occurs electric current arcing, the electric current-producing device is disconnected,
The device for generating voltage is connected, to the spark gap input voltage；Detect the device for generating voltage output end current and
The output voltage of pressure regulator, when detect the output current for pulse current when, power switch is disconnected, when detecting the tune
During the output voltage zero passage of depressor, the power switch is connected；Record the output voltage of the device for generating voltage；So repeatedly.
Occurring without detection electric current (pulse current) again after power switch is connected, you can think that gap insulation performance is recovered.Adopt
With the output voltage (i.e. spark gap both end voltage) of voltage oscillograph device (such as oscillograph or oscillograph) recording voltage generation device,
Spark gap is short-circuit condition moment is punctured, and both end voltage is zero, and after insulating properties are recovered, both end voltage occurs continuously just
String voltage waveform, the continuous sine wave shaped voltage for now occurring in voltage oscillograph device is spark gap insulation recovery voltage.
It is that fuse is arranged on into gap two ends to install fuse to spark gap, and spark gap is produced just for cranking test power supply
Secondary arcing phenomenon.
Guarantee that electric current-producing device disconnects and be to ensure that gate-controlled switch K1 disconnects, it is ensured that current source is in disconnection shape in electric current-producing device
State；Guarantee that the breaker between current lifting device and gate-controlled switch K1 disconnects.
Guarantee that device for generating voltage disconnects and be to ensure that gate-controlled switch K2 disconnects, it is ensured that voltage source is in disconnection shape in device for generating voltage
State.
First turn-on current generation device, gate-controlled switch K1 is disconnected after through-flow a period of time after spark gap occurs electric current arcing, and
Link gate-controlled switch K2 and the voltage source of closing, and connects device for generating voltage；
By the output current and the output voltage of pressure regulator of quick-break controlling switch detection voltage generation device；Power switch is one
As in the case of be to turn on state, when quick-break controlling switch detect output current for pulse current when, disconnect power switch so that
Stepup transformer no longer provides energy to breakdown spark gap；After power switch disconnects a period of time, the output voltage of pressure regulator will
Zero is reduced to, when the output voltage zero passage of pressure regulator is detected, power switch is again switched on so that stepup transformer is gradually between spark
Gap is pressurizeed, until spark gap punctures again；
Divider output voltage of detection voltage generation device always in whole detection process, and show and divide by recorded broadcast equipment
Analysis；The output voltage of device for generating voltage is the voltage at spark gap two ends, using voltage oscillograph device (such as oscillograph or record
Ripple instrument) record spark gap both end voltage, spark gap is short-circuit condition moment is punctured, and both end voltage is 0, works as insulating properties
After recovering, there is continuous sinusoidal voltage waveform in both end voltage, and the continuous sine wave shaped voltage for now occurring in recording wave device is
For insulation recovery voltage.
Finally it should be noted that：Above example only to illustrate technical scheme rather than a limitation, although reference
Above-described embodiment has been described in detail to the present invention, and those of ordinary skill in the art still can be to the concrete of the present invention
Embodiment is modified or equivalent, these any modifications or equivalent without departing from spirit and scope of the invention,
Applying within pending claims.
Claims (10)
1. a kind of spark gap insulation recovery voltage check device, it is characterised in that：The detection means includes：
Electric current-producing device：It is in parallel with spark gap after its output end series connection gate-controlled switch K1, for spark gap output current；
Device for generating voltage：It is in parallel with spark gap after its output end series connection gate-controlled switch K2, for spark gap output voltage；
Bleeder mechanism：The output end of device for generating voltage is connected in parallel on, for detecting the output voltage of the device for generating voltage；
Control circuit：Be connected with the device for generating voltage, for detect the device for generating voltage output end alternating current and
The output voltage of pressure regulator, and the device for generating voltage according to the alternating current and the output voltage control opening or closing
It is disconnected.
2. a kind of spark gap insulation recovery voltage check device according to claim 1, it is characterised in that：
The electric current-producing device includes current source, current lifting device and breaker；The output end of the current source and the input of current lifting device
End is in parallel, and the output end of the current lifting device and breaker enter that line side is in parallel, the outgoing line side and gate-controlled switch K1 string of the breaker
In parallel with spark gap after connection, the low-pressure end ground connection of the spark gap, high-pressure side connects the gate-controlled switch K1.
3. a kind of spark gap insulation recovery voltage check device according to claim 1, it is characterised in that：
The device for generating voltage includes voltage source, pressure regulator and stepup transformer；The output end of the voltage source and the input of pressure regulator
End is in parallel, and the output end of the pressure regulator is in parallel with the input of the stepup transformer, and the output end series connection of the stepup transformer is described can
It is in parallel with the spark gap after control switch K2.
4. a kind of spark gap insulation recovery voltage check device according to claim 1, it is characterised in that：
The control circuit includes current detection circuit, quick-break controlling switch and insulating power supply；The insulating power supply and the quick-break
Controlling switch is connected, for providing working power to the quick-break controlling switch；The current detection circuit connects respectively stepup transformer
Output end and the quick-break controlling switch input, for detecting the electric current of the booster output, and electric current will be detected
It is transferred to the quick-break controlling switch；The quick-break controlling switch according to it is described detection current control described in device for generating voltage it is defeated
Go out.
5. a kind of spark gap insulation recovery voltage check device according to claim 4, it is characterised in that：
The current detection circuit includes passive current transformer, rectification circuit, shunt circuit and optical fiber transceiving circuit；The nothing
The input of ource electric current transformer is connected on the connection line between booster output and spark gap low-pressure end, its output end
It is in parallel with the input of rectification circuit；The output end of the rectification circuit is in parallel with the input of shunt circuit；The shunt circuit
Output end it is in parallel with the input of the optical fiber transceiving circuit；The output end of the optical fiber transceiving circuit is by optical fiber and the speed
The input connection of disconnected controlling switch.
6. a kind of spark gap insulation recovery voltage check device according to claim 5, it is characterised in that：
The passive current transformer detects the alternating current of the stepup transformer output, and the alternating current is transferred to described whole
Current circuit；The alternating current is converted to and export after DC current to the shunt circuit by the rectification circuit；The shunting electricity
Road will the DC current shunt after export to the optical fiber transceiving circuit, the optical fiber transceiving circuit is by the DC current for receiving
Signal is converted to after optical signal by Optical Fiber Transmission to the quick-break controlling switch.
7. a kind of spark gap insulation recovery voltage check device according to claim 5, it is characterised in that：
The shunt circuit includes resistance R1 and R2 and Diode series branch road；The resistance R1 and the Diode series
It is in parallel with the output end of the rectification circuit after branch circuit parallel connection；One end series resistance R2 of the Diode series branch road, the other end
Ground connection, the input of the optical fiber transceiving circuit in parallel between the other end and earth terminal of the resistance R2.
8. the spark gap insulation recovery voltage check device according to any one in claim 4-7, it is characterised in that：
Quick-break controlling switch include voltage over zero measure loop, photoelectric switching circuit, control chip, driving and protection circuit,
And power switch；The input of the voltage over zero measure loop is in parallel with the output end of pressure regulator, its output end with it is described
Control chip is connected, and for detecting the output voltage of the pressure regulator, and the voltage for detecting is sent into the control chip；
The input of the photoelectric switching circuit is connected by optical fiber with the output end of the optical fiber transceiving circuit, its output end and the control
Coremaking piece is connected, and be transferred to after current signal control chip for the optical signal of the optical fiber transceiving circuit output to be converted to；Institute
State control chip to be connected with the control end of the power switch by the Drive Protecting Circuit, the power switch and pressure regulator
Output end is connected；The voltage that the control chip is exported according to the current signal and the pressure regulator of the optical fiber transceiving circuit output
Signal controls the power switch and turns on and off.
9. a kind of spark gap insulation recovery voltage check device according to claim 1, it is characterised in that：
The gate-controlled switch K1 and gate-controlled switch K2 are 35KV breakers；The output end of the divider is connected with recorded broadcast equipment,
The voltage of the divider detection is by the recorded broadcast device analysis and record.
10. the spark gap insulation recovery voltage detecting that the detection means in a kind of use claim 1-9 described in any one is realized
Method, it is characterised in that：Methods described includes：Fuse is installed to spark gap；Guarantee that electric current-producing device and voltage produce dress
Put disconnection；Turn-on current generation device, to the spark gap input current；After spark gap occurs electric current arcing, disconnect
The electric current-producing device, connects the device for generating voltage, to the spark gap input voltage；Detect that the voltage is produced
The output end current of device and the output voltage of pressure regulator, when it is pulse current to detect the output current, disconnects power and open
Close, when the output voltage zero passage of the pressure regulator is detected, connect the power switch；Record the device for generating voltage
Output voltage；After the power switch is connected, when the output end current of the device for generating voltage is 0, the voltage is produced
The output voltage of device is spark gap insulation recovery voltage.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107329068A (en) * | 2017-06-30 | 2017-11-07 | 中国西电电气股份有限公司 | Spark gap recover loop and the method for voltage test in a kind of series compensation device |
| CN107884687A (en) * | 2017-10-23 | 2018-04-06 | 中国电力科学研究院有限公司 | A kind of system and method for the running status for monitoring series compensation spark gap on-line |
| CN111796167A (en) * | 2019-04-08 | 2020-10-20 | 河南省高压电器研究所有限公司 | Spark gap discharge device and high-voltage electrical appliance high-capacity synthesis test device |
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| CN107329068B (en) * | 2017-06-30 | 2020-06-23 | 中国西电电气股份有限公司 | Circuit and method for performing voltage recovery test on spark gap in series compensation device |
| CN107884687A (en) * | 2017-10-23 | 2018-04-06 | 中国电力科学研究院有限公司 | A kind of system and method for the running status for monitoring series compensation spark gap on-line |
| CN111796167A (en) * | 2019-04-08 | 2020-10-20 | 河南省高压电器研究所有限公司 | Spark gap discharge device and high-voltage electrical appliance high-capacity synthesis test device |
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