CN104267297B - A kind of capacitor discharge speed test circuitry, test device and method of testing - Google Patents

A kind of capacitor discharge speed test circuitry, test device and method of testing Download PDF

Info

Publication number
CN104267297B
CN104267297B CN201410566943.0A CN201410566943A CN104267297B CN 104267297 B CN104267297 B CN 104267297B CN 201410566943 A CN201410566943 A CN 201410566943A CN 104267297 B CN104267297 B CN 104267297B
Authority
CN
China
Prior art keywords
capacitor
discharge
divider
test
voltage
Prior art date
Application number
CN201410566943.0A
Other languages
Chinese (zh)
Other versions
CN104267297A (en
Inventor
金涌涛
周国良
李特
余绍峰
金宇波
胡叶舟
Original Assignee
国家电网公司
国网浙江省电力公司电力科学研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国家电网公司, 国网浙江省电力公司电力科学研究院 filed Critical 国家电网公司
Priority to CN201410566943.0A priority Critical patent/CN104267297B/en
Publication of CN104267297A publication Critical patent/CN104267297A/en
Application granted granted Critical
Publication of CN104267297B publication Critical patent/CN104267297B/en

Links

Abstract

This application discloses a kind of capacitor discharge speed test circuitry, test device and method of testing, test circuit includes:The power circuit powered to capacitor, it is in parallel with the capacitor, divider to detect the condenser voltage, the capacitor is connected with the first common port of the divider with the first end of discharge switch, and the capacitor passes sequentially through current divider, additional resistance, discharge device with the second common port of the divider and is connected with the second end of the discharge switch.The test circuit that the application is provided, capacitor can be powered by power circuit, remaining DC voltage after analog capacitor separating brake, it is then turned off power circuit, close discharge switch, capacitor is discharged using accessory circuits and discharge device, and discharge voltage and discharge current are detected by divider and current divider, the purpose that the different discharge devices of detection influence on capacitor discharge speed is realized.

Description

A kind of capacitor discharge speed test circuitry, test device and method of testing
Technical field
The application is related to capacitor detection technique field, more specifically to a kind of capacitor discharge velocity test electricity Road, test device and method of testing.
Background technology
Shunt capacitor group is widely used in the reactive-load compensation of power network as capacitive element, to improve line voltage and work( Rate factor, reduces the damage of circuit.
When switch cut-offs shunt capacitor group, due to the particularity of load, there is higher recovery voltage between contact.Open Power-off stream blow-out after, the residual charge in capacitor bank can not discharge in a short time, supply voltage with it is residual in capacitor bank Pressure is reverse, causes to bear higher restoring over-voltage for a long time between breaker fracture, once the insulation recovery of vacuum circuit breaker is strong Degree can not bear to be added on restoring over-voltage thereon, easily occur arc reignition.
It is general that shunt capacitor is discharged from discharge device in order to solve the problem.But, prior art lacks A kind of scheme for the influence to capacitor discharge speed of testing different discharge devices, it is impossible to determine whether discharge device meets to electricity The requirement of the container residual voltage velocity of discharge.
The content of the invention
In view of this, this application provides a kind of capacitor discharge speed test circuitry, test device and method of testing, use In providing a kind of capacitor discharge speed trial scheme, to verify different type discharge device to capacitor residue tension discharge speed The influence of degree.
To achieve these goals, it is proposed that scheme it is as follows:
A kind of capacitor discharge speed test circuitry, including:
The power circuit powered to capacitor, the power circuit includes power switch;
It is in parallel with the capacitor, to detect the divider of the condenser voltage;
The capacitor is connected with the first common port of the divider with the first end of discharge switch, the capacitor with Second common port of the divider passes sequentially through the second end of current divider, additional resistance, discharge device and the discharge switch It is connected.
Preferably, when the power circuit includes adjustable transformer and the step-up transformer being attached thereto,
The test circuit also includes commutation diode, and the commutation diode is arranged on the pair of the step-up transformer Side.
Preferably, the power circuit is Switching Power Supply or linear power supply.
Preferably, in addition to:
The voltage-regulator diode in parallel with the capacitor.
Preferably, in addition to:
It is connected on the thermistor of the step-up transformer secondary.
Preferably, the divider is divider.
Preferably, the current divider is direct current current divider.
Preferably, the additional resistance is slide rheostat.
A kind of capacitor discharge speed testing device, including capacitor discharge speed test circuitry described above, and It is arranged on the housing outside the capacitor discharge speed test circuitry.
A kind of capacitor discharge testing method, applied in capacitor discharge speed test circuitry described above, Method includes:
The capacitor is charged using the power circuit;
Judge whether the magnitude of voltage that divider is shown reaches preset value;
If so, then disconnecting the power circuit, and close the discharge switch;
The magnitude of voltage and current value exported using the divider and the current divider, determines capacitor discharge speed.
It can be seen from above-mentioned technical scheme that, the capacitor discharge speed test circuitry that the embodiment of the present application is provided, bag Include:The power circuit powered to capacitor, divider to detect the condenser voltage, institute in parallel with the capacitor State capacitor with the first common port of the divider with the first end of discharge switch to be connected, the capacitor and the divider The second common port pass sequentially through current divider, additional resistance, discharge device and be connected with the second end of the discharge switch.The application The test circuit of offer, can be powered by power circuit to capacitor, remaining direct current after analog capacitor separating brake Pressure, is then turned off power circuit, closes discharge switch, capacitor is discharged using accessory circuits and discharge device, and leads to Cross divider and current divider to detect discharge voltage and discharge current, realize the different discharge devices of detection to capacitor discharge speed The purpose of influence.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this The embodiment of application, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of capacitor discharge speed test circuitry structural representation disclosed in the embodiment of the present application;
Fig. 2 is another capacitor discharge speed test circuitry structural representation disclosed in the embodiment of the present application;
Fig. 3 is a kind of capacitor discharge testing method flow chart disclosed in the embodiment of the present application;
Fig. 4 is another capacitor discharge speed test circuitry structural representation disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of the application protection.
Referring to Fig. 1, Fig. 1 is a kind of capacitor discharge speed test circuitry structural representation disclosed in the embodiment of the present application.
As shown in figure 1, the circuit includes:
The power circuit VCC powered to capacitor C;
Wherein, power circuit VCC can be powered for capacitor C, with direct current remaining after analog capacitor separating brake Pressure, power circuit VCC includes power switch (not marked in Fig. 1), can be with the switch of controlling power circuit by power switch.
It is in parallel with the capacitor C, to detect the divider U of the capacitor C voltage;
Wherein, divider U can be with the voltage of sensing capacitor.
The capacitor C is connected with the first common port of the divider U with discharge switch K2 first end, the electric capacity The device C and divider U the second common port passes sequentially through current divider A, additional resistance R, discharge device W and the discharge switch K2 the second end is connected.
Wherein, discharge device W is discharge device to be measured, and after discharge switch K2 is merged, discharge device W can be to electricity Container C is discharged.Annex resistance R can simulate and adjust discharge loop resistance.
The capacitor discharge speed test circuitry that the embodiment of the present application is provided, including:The power circuit powered to capacitor, It is in parallel with the capacitor, the divider to detect the condenser voltage, the capacitor and the first of the divider Common port is connected with the first end of discharge switch, and the second common port of the capacitor and the divider passes sequentially through shunting Device, additional resistance, discharge device are connected with the second end of the discharge switch.The test circuit that the application is provided, can pass through Power circuit is powered to capacitor, and remaining DC voltage, is then turned off power circuit after analog capacitor separating brake, closes Discharge switch, is discharged capacitor using accessory circuits and discharge device, and is put by divider and current divider to detect Piezoelectric voltage and discharge current, realize the purpose that the different discharge devices of detection influence on capacitor discharge speed.
Referring to Fig. 2, Fig. 2 is another capacitor discharge speed test circuitry structural representation disclosed in the embodiment of the present application Figure.
In Fig. 2, power circuit VCC is defined, it can include adjustable transformer T1 and step-up transformer T2, On the basis of this, in addition it is also necessary in step-up transformer T2 secondary increase commutation diode D.
Wherein, adjustable transformer T1 includes power switch K1.
When being tested using the test circuit shown in Fig. 2, specific implementation process is:Whole process is divided into charging process And discharge process.Charging process is:Power switch K1 is closed, point discharge switch K2 adjusts adjustable transformer T1, boosted transformer T2 boosts, and by commutation diode D rectifications, gives capacitor C chargings, while monitoring whether DC voltage reaches pre- on capacitor C If value, if do not arrived, continue to adjust adjustable transformer T1, until DC voltage reaches preset value on capacitor C.Discharge process For:After DC voltage on capacitor C reaches preset value, independent power source switch K1 closes discharge switch K2, by discharge device W and DC voltage on additional resistance R releasing capacitors C, at the same using divider U and current divider A monitor capacitor C DC voltages and Discharge loop electric current, judges capacitor discharge speed.Specific workflow is as shown in Figure 3.Method shown in Fig. 3 includes:
Step S100, using the power circuit capacitor is charged;
Step S110, judge whether the magnitude of voltage that divider is shown reaches preset value;
If so, then performing step S120, disconnecting the power circuit, and close the discharge switch;
Step S130, the magnitude of voltage and current value exported using the divider and the current divider, determine that capacitor is put Electric speed.
It should be noted that power circuit can also be Switching Power Supply or linear electricity except realizing in the manner shown in figure 2 Source, can direct output of DC current stream be capacitor charged.
Further, referring to Fig. 4, Fig. 4 is another capacitor discharge speed test circuitry knot disclosed in the embodiment of the present application Structure schematic diagram.
Compared to Fig. 2, the voltage-regulator diode DZ in parallel with capacitor C is further increased in Fig. 4.Voltage-regulator diode can Prevent from puncturing capacitor due to overtension.
Further, can also the step-up transformer T2 secondary series thermal-sensitive resistance, to prevent surge impact.
It is to be understood that above-mentioned divider can be divider, current divider is direct current current divider.Annex resistance can With slide rheostat, easily to carry out resistance adjustment.
On the basis of the above, the embodiment of the present application additionally provides a kind of capacitor discharge speed testing device, test dress Put including housing and the test circuit being arranged in housing, test circuit is the capacitor discharge velocity test electricity of above-mentioned introduction Road.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged Except also there is other identical element in the process including the key element, method, article or equipment.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the application. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can in other embodiments be realized in the case where not departing from spirit herein or scope.Therefore, the application The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (9)

1. a kind of capacitor discharge speed test circuitry, it is characterised in that including:
The power circuit powered to capacitor, the power circuit includes power switch;
It is in parallel with the capacitor, to detect the divider of the condenser voltage;
The capacitor is connected with the first common port of the divider with the first end of discharge switch, the capacitor with it is described Second common port of divider passes sequentially through current divider, additional resistance, discharge device and is connected with the second end of the discharge switch;
The power circuit is Switching Power Supply or linear power supply.
2. test circuit according to claim 1, it is characterised in that the power circuit include adjustable transformer and with Connected step-up transformer when,
The test circuit also includes commutation diode, and the commutation diode is arranged on the secondary of the step-up transformer.
3. test circuit according to claim 2, it is characterised in that also include:
The voltage-regulator diode in parallel with the capacitor.
4. test circuit according to claim 2, it is characterised in that also include:
It is connected on the thermistor of the step-up transformer secondary.
5. test circuit according to claim 2, it is characterised in that the divider is divider.
6. the test circuit according to right requires 2, it is characterised in that the current divider is direct current current divider.
7. test circuit according to claim 2, it is characterised in that the additional resistance is slide rheostat.
8. a kind of capacitor discharge speed testing device, it is characterised in that including the electric capacity described in claim 1-7 any one Device velocity of discharge test circuit, and it is arranged on the housing outside the capacitor discharge speed test circuitry.
9. a kind of capacitor discharge testing method, it is characterised in that applied to the electricity described in claim 1-7 any one In condenser discharge speed test circuitry, method includes:
The capacitor is charged using the power circuit;
Judge whether the magnitude of voltage that divider is shown reaches preset value;
If so, then disconnecting the power circuit, and close the discharge switch;
The magnitude of voltage and current value exported using the divider and the current divider, determines capacitor discharge speed.
CN201410566943.0A 2014-10-22 2014-10-22 A kind of capacitor discharge speed test circuitry, test device and method of testing CN104267297B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410566943.0A CN104267297B (en) 2014-10-22 2014-10-22 A kind of capacitor discharge speed test circuitry, test device and method of testing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410566943.0A CN104267297B (en) 2014-10-22 2014-10-22 A kind of capacitor discharge speed test circuitry, test device and method of testing

Publications (2)

Publication Number Publication Date
CN104267297A CN104267297A (en) 2015-01-07
CN104267297B true CN104267297B (en) 2017-09-22

Family

ID=52158837

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410566943.0A CN104267297B (en) 2014-10-22 2014-10-22 A kind of capacitor discharge speed test circuitry, test device and method of testing

Country Status (1)

Country Link
CN (1) CN104267297B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201315550Y (en) * 2008-12-19 2009-09-23 东北农业大学 High pressure impulse generator based on triple-pole ignition switch
CN101930039A (en) * 2009-06-22 2010-12-29 三菱电机株式会社 Capacitor capacitance diagnosis device and electric power apparatus equipped with capacitor capacitance diagnosis device
CN202041590U (en) * 2010-12-31 2011-11-16 珠海格力新元电子有限公司 Capacitor charge and discharge tester
CN103135057A (en) * 2011-11-29 2013-06-05 李革臣 Quick measurement method with battery self-discharge performance
CN103487663A (en) * 2013-08-12 2014-01-01 中国振华(集团)新云电子元器件有限责任公司 System and method for testing capacitance of supercapacitor
CN104007378A (en) * 2014-05-05 2014-08-27 合容电气股份有限公司 Testing device and method for damping discharging of series capacitor
CN204086434U (en) * 2014-10-22 2015-01-07 国家电网公司 A kind of capacitor discharge speed test circuitry and proving installation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3472351B2 (en) * 1994-08-26 2003-12-02 高周波熱錬株式会社 Arc discharge detection method
JP4100035B2 (en) * 2002-05-07 2008-06-11 株式会社明電舎 Switch breaker test voltage divider for arc voltage measurement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201315550Y (en) * 2008-12-19 2009-09-23 东北农业大学 High pressure impulse generator based on triple-pole ignition switch
CN101930039A (en) * 2009-06-22 2010-12-29 三菱电机株式会社 Capacitor capacitance diagnosis device and electric power apparatus equipped with capacitor capacitance diagnosis device
CN202041590U (en) * 2010-12-31 2011-11-16 珠海格力新元电子有限公司 Capacitor charge and discharge tester
CN103135057A (en) * 2011-11-29 2013-06-05 李革臣 Quick measurement method with battery self-discharge performance
CN103487663A (en) * 2013-08-12 2014-01-01 中国振华(集团)新云电子元器件有限责任公司 System and method for testing capacitance of supercapacitor
CN104007378A (en) * 2014-05-05 2014-08-27 合容电气股份有限公司 Testing device and method for damping discharging of series capacitor
CN204086434U (en) * 2014-10-22 2015-01-07 国家电网公司 A kind of capacitor discharge speed test circuitry and proving installation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
放电线圈和电压互感器的对比;周国良;《电力电容器与无功补偿》;20080430;第29卷(第02期);第46-47页 *
高压并联电容器用放电线圈放电性能试验研究;周国良;《浙江电力》;20000531(第05期);第8页左栏第1段至右栏第3段、第10页左栏第1段至右栏第5段,图1-2 *

Also Published As

Publication number Publication date
CN104267297A (en) 2015-01-07

Similar Documents

Publication Publication Date Title
US10416224B2 (en) Insulation detector and electric apparatus
KR101590532B1 (en) Voltage compensated active cell balancing
US9007735B2 (en) Fault detection, isolation, location and reconnection systems and methods
US9042131B2 (en) Power-packet-switching converter with sequenced connection to link inductor
US9252654B1 (en) Bridgeless power factor improvement converter
US10913368B2 (en) PWM capacitor control
JP2015206784A (en) Insulation detection device and insulation detection method for non-grounded power source
CN102484422B (en) For method and the circuit of power factor correction
CN102291017B (en) Method and apparatus for a high voltage power supply circuit
FI120280B (en) Method for monitoring the condition of DC capacitors
KR20140041622A (en) Detection of an insulation defect
JP5664654B2 (en) Power supply control circuit and power supply control method
CN103236787B (en) Capacity discharge method and circuit
US20130116956A1 (en) Capacitance measurement circuit
JP5837534B2 (en) DC link capacitor diagnostic device for inverter
KR20090065521A (en) System and method for inductively charging a battery
CN104520726B (en) Insulation measurement for inverter
CN103442492B (en) A kind of capacitor step-down LED driver and capacitor step-down LED driving method thereof
CN101604853B (en) Battery charge and discharge device
US8035940B2 (en) Over-voltage protection circuit structure and method thereof
CN201218833Y (en) Controlled silicon detection apparatus
KR20080005327A (en) Method for measuring the insulation resistance in an it network
CN104617571B (en) A kind of electronic electric equipment over-voltage and over-current protector
US8497692B2 (en) Resistance measurement in high power apparatus environments
CN203690884U (en) Overvoltage protection circuit, driver and power supply comprising the same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant