CN203385805U - Metalized power capacitor rapid aging testing device - Google Patents
Metalized power capacitor rapid aging testing device Download PDFInfo
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- CN203385805U CN203385805U CN201320396874.4U CN201320396874U CN203385805U CN 203385805 U CN203385805 U CN 203385805U CN 201320396874 U CN201320396874 U CN 201320396874U CN 203385805 U CN203385805 U CN 203385805U
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Abstract
The utility model relates to a metalized power capacitor rapid aging testing device comprising a voltage transformation module, a measurement and calculation protection module, a constant temperature box and a control module. The voltage transformation module is used for raising a power supply voltage to a voltage value needed by a testing voltage. The measurement and calculation protection module is used for realizing testing time calculation, access voltage measurement, total current measurement, electric reactor current measurement, capacitor current measurement and capacitor voltage measurement, and performing time-delay protection to overvoltage and overcurrent and instant protection to a short circuit state. The constant temperature box is used for providing an environment of constant temperature in a testing process, and a metalized power capacitor to be tested in arranged inside the constant temperature box. The control module is used for controlling start and stop of the whole testing device and operation of the constant temperature box. According to the aforementioned device, problems that a capacitor aging testing device in the prior art is complex in mechanism, poor in safety, long in testing period, high in cost and large in energy consumption are solved.
Description
Technical field
The utility model relates to a kind of capacitor aging test device, and specifically a kind of Metallized power capacitor Accelarated aging test device and test method thereof, belong to electric and electronic technical field.
Background technology
Along with the high speed development of national economy, electricity needs increases day by day, and country will carry forward vigorously the construction of strong intelligent grid, has driven the fast development of electrotechnical instrument and meter industry simultaneously.The intelligent electric power electronic instrument is as instrument indispensable in strong intelligent grid, and the function unique with it constantly enlarges market share.The development of strong intelligent grid, the exploitation of active demand new product, Metallized power capacitor is extensively quoted as the important devices in intelligent grid.
Metallized power capacitor is a kind of in metallic film capacitor, is to utilize the polypropylene films for electrical purposes for medium, and allumen is attached to the electric power surface by the vacuum evaporation mode by it, forms electrode.Form capacitor by noninductive electrodeless coiling or lamination mode, Metallized power capacitor has withstand voltage height, high insulation resistance, impedance frequency characteristic good (less stray inductance), lower ESR(equivalent series resistance Equivalent Series Resistance), low loss tangent.Just because of Metallized power capacitor, such characteristics are arranged, replaced the capacitor of original film and aluminium foil coiling, make small product size less, ratio characteristic is better.
Metallized power capacitor is widely used in the middle of power equipment, product quality is vital for power capacitor, so national standard (GB/T-12747-2004) has been stipulated the standard of " 1kV and following AC electric power systems self-healing type parallel condenser " delivery test and form test, standard code, every power capacitor must meet 6 tests, can dispatch from the factory.And the form test is 4 years routine tests once, as the test of examination manufacturer material, design, technique, this test is generally undertaken by a national class research institute, and provides test report, can be used as product user's reference.Aging of product test period long (test 2 months, add and wait in line, obtain report etc., generally need six months) in the form test, expense high (specification product needs 100,000 yuan of left and right), the general user is beyond affordability.Although the power capacitor product that enterprise produces has passed through delivery test in factory,, often there will be the problem of product initial failure in the process of using the user.Tracing it to its cause, is nothing but that material, design or production technology go wrong, and these problems are wilfully that a simple delivery test institute is indiscoverable.
The patent documentation that publication number is 2025832558U discloses a kind of capacitor aging test platform, comprise skeleton, be provided with testing equipment in skeleton, two reactors and a voltage transformer (VT) that testing equipment comprises an intermediate transformer, is in parallel with intermediate transformer, voltage transformer (VT) is connected with the leading-out terminal of intermediate transformer, the leading-out terminal of intermediate transformer connects two-layer bus bar, and it is outer as the capacitor lead wire end that the upper strata bus bar is connected to skeleton, and lower floor's bus bar connects capacitor.By at power inleting terminal, introducing power supply, power supply is by the intermediate transformer transformation, and output test voltage, carry out aging test to encapsulated capacitor.The disclosed capacitor aging test apparatus structure of above-mentioned patent complexity, testing table is not carried out to relay protection, quality the unknown due to capacitor, in test, fortuitous event easily appears, during as superpotential or excess current likely the destructive test device even cause dangerous accident, have larger security risk; Above-mentioned test unit is that the test period is long in the situation that normal temperature is tested simultaneously, and expense is high, and energy consumption is large, uneconomical material benefit.
The utility model content
Technical problem to be solved in the utility model is that in prior art, the capacitor aging test equipment mechanism is complicated, security is poor, the test period is long, expense is high, energy consumption is large, thereby provides a kind of security good, consuming time short, metallized film power capacitor Accelarated aging test device and test method thereof that expense is low.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of Metallized power capacitor Accelarated aging test device comprises:
Voltage changing module, for bringing up to electrical source of power voltage the required magnitude of voltage of trial voltage;
The measuring protection module, comprise test period metering units, access voltage measurement unit, condenser voltage measuring and protecting unit, total current measuring and protecting unit, reactor current measuring and protecting unit, condenser current measuring and protecting unit and delay protection setting unit;
Constant temperature oven, be arranged in described constant temperature oven for stationary temperature environment, Metallized power capacitor to be measured are provided in process of the test;
Control module, for the start and stop of controlling whole test unit and the work of constant temperature oven.
Described control module comprises operation control module and constant temperature oven control module, and described constant temperature oven control module is for being controlled constant temperature oven.
Described measuring protection module also comprises excess current, short-circuit current and superpotential indicating member.
Described control module also comprises the work indicating member.
Described voltage changing module comprises pressure regulator TYQ, transformer 1YH; The primary side of described pressure regulator TYQ and A.C. contactor 1QC transfer contact 1QC
1common connect, described pressure regulator TYQ secondary side is connected with the primary side of described transformer 1YH, described transformer 1YH secondary side is connected with detected Metallized power capacitor.
Described test period metering units comprises timer JSQ and A.C. contactor 1QC transfer contact 1QC
3; Described A.C. contactor 1QC transfer contact 1QC
3common with the common port of control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
3normally opened contact with an end of described timer JSQ coil, be connected, the other end of described timer JSQ coil is connected with the zero line of described control power supply.
Described access voltage measurement unit comprises voltage table 1V, and for measuring the electrical source of power voltage of access, described voltage table 1V is connected to the primary side terminals of pressure regulator TYQ.
Described condenser voltage measuring and protecting unit comprises voltage table 2V, voltage relay YJ, voltage transformer (VT) 2YH; Described voltage transformer (VT) 2YH primary side is connected to the secondary side of described transformer 1YH, one end of described voltage transformer (VT) 2YH secondary side is connected with an end of described voltage relay YJ coil jointly with the end of described voltage table 2V, and the other end of described voltage transformer (VT) 2YH secondary side is connected with the other end of described voltage relay YJ coil and jointly is connected with the other end of described voltage table 2V.
Described total current measuring and protecting unit comprises current transformer 1LHa, 1LHb, 1LHc, current relay 1DJ, 1DJ ', 1DJ 〞, current relay 4DJ, reometer 1A, described total current measuring and protecting unit carries out the excess current measuring and protecting to A, B, the C three-phase current of total current respectively; Described current transformer 1LHa primary side is connected in the A phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ ' coil of one termination of described current transformer 1LHa secondary side, the other end of the described current transformer 1LHa of another termination secondary side of described current relay 1DJ ' coil; The primary side of described current transformer 1LHb is connected in the B phase connection of primary side terminals of described pressure regulator TYQ, one end of described current transformer 1LHb secondary side is connected with an end of described current relay 1DJ coil, the other end of described current relay 1DJ coil is connected with the end of described reometer 1A, the other end of described reometer 1A is connected with an end of described current relay 4DJ coil, and the other end of described current relay 4DJ coil is connected with the other end of described current transformer 1LHb secondary side; Described current transformer 1LHc primary side is connected in the C phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ of the one termination 〞 coil of described current transformer 1LHc secondary side, the other end of the described current transformer 1LHc of another termination secondary side of described current relay 1DJ 〞 coil.
Described reactor current measuring and protecting unit comprises reactor DKQ, current transformer 2LHb, current relay 2DJ, reometer 2A; The primary side of described current transformer 2LHb is connected in the B phase connection of described reactor DKQ terminals, one end of described current transformer 2LHb secondary side is connected with an end of described current relay 2DJ coil, one end of the 2DJ coil of described current relay and the end of described reometer 2A be connected, the other end of described reometer 2A is connected with the other end of described current transformer 2LHb secondary side.
Described condenser current measuring and protecting unit comprises current transformer 3LHa, 3LHb, 3LHc, reometer 3A, 4A, 5A, current relay 3DJ, detected Metallized power capacitor DRQ; The primary side of described current transformer 3LHa is connected in the A phase connection of detected Metallized power capacitor DRQ terminals, described condenser current measuring and protecting unit carries out the excess current measuring and protecting to A, B, the C three-phase current of capacitor respectively, secondary side one end of described current transformer 3LHa is connected with the end of described reometer 4A, and the other end of described reometer 4A is connected with an end of described current transformer 3LHa secondary side; The primary side of described current transformer 3LHb is connected in the B phase connection of detected described Metallized power capacitor DRQ terminals, one end of the secondary side of described current transformer 3LHb is connected with an end of described current relay 3DJ coil, the other end of described current relay 3DJ coil is connected with the end of described reometer 3A, and the other end of described reometer 3A is connected with the other end of described current transformer 3LHb secondary side; The primary side of described current transformer 3HLc is connected in the C phase connection of described detected Metallized power capacitor DRQ terminals, the end of the described reometer 5A of secondary one termination of described current transformer 3HLc, the other end of described reometer 5A is connected with the other end of described current transformer 3LHc secondary side.
Described delay protection setting unit comprises time relay 1SJ, 2SJ, intermediate relay ZJ, time relay 1SJ transfer contact 1SJ
1, time relay 2SJ transfer contact 2SJ
1, intermediate relay ZJ transfer contact ZJ
1, current relay 1DJ transfer contact 1DJ
1, current relay 1DJ ' transfer contact 1DJ
1', current relay 1DJ 〞 transfer contact 1DJ
1〞, current relay 2DJ transfer contact 2DJ
1, current relay 3DJ transfer contact 3DJ
1, voltage relay YJ transfer contact YJ
1; Described time relay 1SJ transfer contact 1SJ
1common and described time relay 2SJ transfer contact 2SJ
1common jointly connect the common port of described control switch ZK, described time relay 1SJ transfer contact 1SJ
1normally opened contact and described time relay 2SJ transfer contact 2SJ
1normally opened contact jointly connect an end of described intermediate relay ZJ coil, the zero line of the described control power supply of another termination of described intermediate relay ZJ coil; Described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, described current relay 2DJ transfer contact 2DJ
1, described current relay 3DJ transfer contact 3DJ
1common jointly connect the common port of described control switch ZK, described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, current relay 2DJ transfer contact 2DJ
1, current relay 3DJ transfer contact 3DJ
1normally opened contact jointly connect an end of described time relay 1SJ coil, the zero line of the described control power supply of another termination of described time relay 1SJ coil; Described voltage relay YJ transfer contact YJ
1common connect the common port of described control switch ZK, described voltage relay YJ transfer contact YJ
1normally opened contact connect an end of described time relay 2SJ coil, the zero line of the described control power supply of another termination of described time relay 2SJ coil.
Described operation control module comprises air-break DK transfer contact DK
1, A.C. contactor 1QC, A.C. contactor 1QC transfer contact 1QC
1, 1QC
2, 1QC
4, current relay 4DJ transfer contact 4DJ
1, start button QA, stop button TA, control switch ZK, timer JSQ transfer contact JSQ
1, intermediate relay ZJ transfer contact ZJ
1; Described constant temperature oven control module comprises A.C. contactor 2QC, A.C. contactor 2QC transfer contact 2QC
1, A.C. contactor 1QC transfer contact 1QC
4; Described air-break DK normally opened contact is connected with described electrical source of power terminals, described air-break DK common and described A.C. contactor 1QC transfer contact 1QC
1connect, the Chang Kaiduan of described control switch ZK is connected with the live wire of controlling power supply, the common of described stop button TA is connected with the common port of described control switch ZK, the common of the normally closed contact of described stop button TA and described start button QA and described A.C. contactor 1QC
2common jointly connect, the normally opened contact of described start button QA and described A.C. contactor 1QC transfer contact 1QC
2normally opened contact jointly with an end of described A.C. contactor 1QC coil, be connected, the other end of described A.C. contactor 1QC coil and described A.C. contactor 4DJ transfer contact 4DJ
1common connect, described A.C. contactor 4DJ transfer contact 4DJ
1normally closed contact and described timer JSQ transfer contact JSQ
1common connect, described timer JSQ transfer contact JSQ
1normally closed contact and described A.C. contactor ZJ transfer contact ZJ
1common connect, described A.C. contactor ZJ
1the normally closed contact of transfer contact is connected with the zero line of described control power supply; Described A.C. contactor 2QC transfer contact 2QC
1normally opened contact with the supply terminals of described constant temperature oven, be connected, described A.C. contactor 1QC transfer contact 1QC
4common with the common port of described control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
4normally opened contact with an end of described A.C. contactor 2QC coil, be connected, the other end of described A.C. contactor 2QC coil is connected with the zero line of described control power supply.
Described work indicating member comprises signal lamp 1XD, 2XD, 3XD, described A.C. contactor 1QC transfer contact 1QC
5, described A.C. contactor 2QC transfer contact 2QC
2; The end of described signal lamp 1XD is connected with the positive pole of controlling power supply, and the other end of described signal lamp 1XD is connected with the negative pole of controlling power supply, described A.C. contactor 1QC transfer contact 1QC
5common connect the positive pole of described control power supply, described A.C. contactor 1QC transfer contact 1QC
5normally opened contact connect the end of described signal lamp 2XD, the negative pole of the described control power supply of another termination of described signal lamp 2XD, described A.C. contactor 2QC transfer contact 2QC
2common connect the positive pole of described control power supply, described A.C. contactor 2QC transfer contact 2QC
2normally opened contact connect the end of described signal lamp 3XD, the negative pole of the described control power supply of another termination of described signal lamp 3XD.
The display unit of described excess current, short-circuit current and overvoltage signal comprises signal relay 1XJ, 2XJ, 3XJ, 4XJ, current relay 1DJ transfer contact 1DJ
2, current relay 1DJ ' transfer contact 1DJ
2', current relay 1DJ 〞 transfer contact 1DJ
2〞, current relay 2DJ transfer contact 2DJ
2, current relay 3DJ transfer contact 3DJ
2, voltage relay YJ transfer contact YJ
2; Described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the common of 〞 is connected with the common of described control switch ZK, described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the normally opened contact of 〞 is connected with an end of described signal relay 1XJ coil, and the other end of described signal relay 1XJ coil is connected with the zero line of described control power supply; Described current relay 2DJ transfer contact 2DJ
2normally opened contact with an end of described signal relay 2XJ coil, be connected, the other end of described signal relay 2XJ coil is connected with the zero line of described control power supply; Described current relay 3DJ transfer contact 3DJ
2normally opened contact with an end of described signal relay 3XJ coil, be connected, the other end of described signal relay 3XJ coil is connected with the zero line of described control power supply; Described current relay YJ transfer contact YJ
2normally opened contact with an end of described signal relay 4XJ coil, be connected, the other end of described signal relay 4XJ coil is connected with the zero line of described control power supply.
Described constant temperature oven is baking oven.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) Metallized power capacitor Accelarated aging test device described in the utility model, comprise voltage changing module, measuring protection module, constant temperature oven and control module.Described voltage changing module is for bringing up to the required magnitude of voltage of trial voltage by electrical source of power voltage; Described measuring protection module comprises test period metering units, access voltage measurement unit, condenser voltage measuring and protecting unit, total current measuring and protecting unit, reactor current measuring and protecting unit, condenser current measuring and protecting unit and delay protection setting unit, for realizing test period metering, access voltage measurement, total current measurement, reactor current measurement, capacitor electrode flow measurement, condenser voltage, measure, and superpotential and excess current are carried out to delay protection, the short circuit instantaneous protection; Described constant temperature oven is for providing the stationary temperature environment in process of the test, and Metallized power capacitor to be measured is arranged in described constant temperature oven; Described control module is for controlling the start and stop of whole test unit and the work of constant temperature oven.Above-mentioned test unit is by taking the measure of relay protection; security while having improved the system operation; therefore can improve trial voltage; more than trial voltage being increased to the normal voltage of 1.6 times, tested; and provide higher test temperature by constant temperature oven; therefore effectively shorten test period, effectively avoided the problem that in the prior art, the capacitor aging test equipment mechanism is complicated, security is poor, the test period is long, expense is high, energy consumption is large.
(2) Metallized power capacitor Accelarated aging test device described in the utility model, described measuring protection module comprise the test superpotential and excess current are carried out to delay protection, the overvoltage protection time delay is set to 10 seconds, the surge voltage of effectively having avoided the instantaneous overvoltage that instantaneous voltage ripple of power network causes and having produced while starting; The overcurrent protection time delay is set to 2 seconds, has effectively avoided surge current and has started the excess current that moment produces, and the reliability that has improved test unit when having improved the test unit security is high.
(3) Metallized power capacitor Accelarated aging test device described in the utility model, also comprise the display unit of work indicating member and excess current, short-circuit current and overvoltage signal.Described work indicating member comprises power supply operation, capacitor run indicator and constant temperature oven run indicator, makes the duty of power supply, capacitor and constant temperature oven very clear; The display unit of described excess current, short-circuit current and overvoltage signal carries out the fault demonstration to total current excess current, reactor excess current, capacitor excess current and overvoltage of capacitor fault by signal relay respectively, the detection while being conducive to device is broken down and processing.
(4) Metallized power capacitor Accelarated aging test device described in the utility model is set described digestion time and test period is recorded to the retention test time by timer JSQ, the important parameter using test period as the described Metallized power capacitor selection of judgement and production technology.
(5) Metallized power capacitor Accelarated aging test device described in the utility model adopts the low voltage power electron device, and cost is low, and reliability is high.
The accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 is the structural representation of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 2 is the main circuit electrical schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 3 is the control circuit schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 4 is the access voltage measurement unit circuit theory diagrams of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 5 is the condenser voltage measuring and protecting element circuit schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 6 is the total current measuring and protecting element circuit schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 7 is the reactor current measuring and protecting element circuit schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 8 is the condenser current measuring and protecting element circuit schematic diagram of the described Metallized power capacitor Accelarated aging test of embodiment 1 device;
Fig. 9 is the work indicating member circuit theory diagrams of the described Metallized power capacitor Accelarated aging test of embodiment 2 device;
Figure 10 is the display unit circuit schematic diagram of excess current, short-circuit current and the overvoltage signal of the described Metallized power capacitor Accelarated aging test of embodiment 3 device.
In figure, Reference numeral is expressed as: 1-voltage changing module, 2-measuring protection module, 3-control module, 4-constant temperature oven.
Embodiment
Embodiment 1:
As shown in Figure 1, it comprises voltage changing module 1, measuring protection module 2, control module 3, constant temperature oven 4 to the structure of Metallized power capacitor Accelarated aging test device described in the utility model.
Described voltage changing module 1, for bringing up to electrical source of power voltage the required magnitude of voltage of trial voltage.Described voltage changing module 1 comprises pressure regulator TYQ, transformer 1YH; The primary side of described pressure regulator TYQ and A.C. contactor 1QC transfer contact 1QC
1common connect, described pressure regulator TYQ secondary side is connected with the primary side of described transformer 1YH, described transformer 1YH secondary side is connected with detected Metallized power capacitor.
Described measuring protection module 2, comprise test period metering units, access voltage measurement unit, condenser voltage measuring and protecting unit, total current measuring and protecting unit, reactor current measuring and protecting unit, condenser current measuring and protecting unit and delay protection setting unit.
As shown in Figures 2 and 3, described test period measuring unit comprises timer JSQ, described A.C. contactor 1QC transfer contact 1QC
3; Described A.C. contactor 1QC transfer contact 1QC
3common with the common port of control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
3normally opened contact with an end of described timer JSQ coil, be connected, the other end of described timer JSQ coil is connected with the zero line of described control power supply.
As shown in Fig. 4 and Fig. 2, described access voltage measurement unit comprises voltage table 1V, and for measuring the electrical source of power voltage of access, described voltage table 1V is connected to the primary side terminals of described pressure regulator TYQ, the alternating current that described electrical source of power is 380V.
As shown in Fig. 5 and Fig. 2, described condenser voltage measuring and protecting unit comprises voltage table 2V, voltage relay YJ, voltage transformer (VT) 2YH; Described voltage transformer (VT) 2YH primary side is connected to the secondary side of described transformer 1YH, one end of described voltage transformer (VT) 2YH secondary side is connected with an end of described voltage relay YJ coil jointly with the end of described voltage table 2V, and the other end of described voltage transformer (VT) 2YH secondary side is connected with the other end of described voltage relay YJ coil and jointly is connected with the other end of described voltage table 2V.
As shown in Figure 6, described total current measuring and protecting unit comprises current transformer 1LHa, 1LHb, 1LHc, current relay 1DJ, 1DJ ', 1DJ 〞, current relay 4DJ, reometer 1A, described total current measuring and protecting unit carries out the excess current measuring and protecting to A, B, the C three-phase current of total current respectively; Described current transformer 1LHa primary side is connected in the A phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ ' coil of one termination of described current transformer 1LHa secondary side, the other end of the described current transformer 1LHa of another termination secondary side of described current relay 1DJ ' coil; The primary side of described current transformer 1LHb is connected in the B phase connection of primary side terminals of described pressure regulator TYQ, one end of described current transformer 1LHb secondary side is connected with an end of described current relay 1DJ coil, the other end of described current relay 1DJ coil is connected with the end of described reometer 1A, the other end of described reometer 1A is connected with an end of described current relay 4DJ coil, and the other end of described current relay 4DJ coil is connected with the other end of described current transformer 1LHb secondary side; Described current transformer 1LHc primary side is connected in the C phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ of the one termination 〞 coil of described current transformer 1LHc secondary side, the other end of the described current transformer 1LHc of another termination secondary side of described current relay 1DJ 〞 coil.
As shown in Figure 2 and Figure 7, described reactor current measuring and protecting unit comprises reactor DKQ, current transformer 2LHb, current relay 2DJ, reometer 2A; The primary side of described current transformer 2LHb is connected in the B phase connection of described reactor DKQ terminals, one end of described current transformer 2LHb secondary side is connected with an end of described current relay 2DJ coil, one end of the 2DJ coil of described current relay and the end of described reometer 2A be connected, the other end of described reometer 2A is connected with the other end of described current transformer 2LHb secondary side.
As shown in Figure 2 and Figure 8, described condenser current measuring and protecting unit comprises current transformer 3LHa, 3LHb, 3LHc, reometer 3A, 4A, 5A, current relay 3DJ, detected Metallized power capacitor DRQ; The primary side of described current transformer 3LHa is connected in the A phase connection of detected Metallized power capacitor DRQ terminals, respectively A, B, the C three-phase current of capacitor are carried out to the excess current measuring and protecting, secondary side one end of described current transformer 3LHa is connected with the end of described reometer 4A, and the other end of described reometer 4A is connected with an end of described current transformer 3LHa secondary side; The primary side of described current transformer 3LHb is connected in the B phase connection of detected described Metallized power capacitor DRQ terminals, one end of the secondary side of described current transformer 3LHb is connected with an end of described current relay 3DJ coil, the other end of described current relay 3DJ coil is connected with the end of described reometer 3A, and the other end of described reometer 3A is connected with the other end of described current transformer 3LHb secondary side; The primary side of described current transformer 3HLc is connected in the C phase connection of described detected Metallized power capacitor DRQ terminals, the end of the described reometer 5A of secondary one termination of described current transformer 3HLc, the other end of described reometer 5A is connected with the other end of described current transformer 3LHc secondary side.
As shown in Figure 3, described delay protection setting unit comprises time relay 1SJ, 2SJ, intermediate relay ZJ coil, time relay 1SJ transfer contact 1SJ
1, time relay 2SJ transfer contact 2SJ
1, intermediate relay ZJ transfer contact ZJ
1, current relay 1DJ transfer contact 1DJ
1, current relay 1DJ ' transfer contact 1DJ
1', current relay 1DJ 〞 transfer contact 1DJ
1〞, current relay 2DJ transfer contact 2DJ
1, current relay 3DJ transfer contact 3DJ
1, voltage relay YJ transfer contact YJ
1; Described time relay 1SJ transfer contact 1SJ
1common and described time relay 2SJ transfer contact 2SJ
1common jointly connect the common port of described control switch ZK, described time relay 1SJ transfer contact 1SJ
1normally opened contact and described time relay 2SJ transfer contact 2SJ
1normally opened contact jointly connect an end of described intermediate relay ZJ coil, the zero line of the described control power supply of another termination of described intermediate relay ZJ coil; Described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, described current relay 2DJ transfer contact 2DJ
1, described current relay 3DJ transfer contact 3DJ
1common jointly connect the common port of described control switch ZK, described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, current relay 2DJ transfer contact 2DJ
1, current relay 3DJ transfer contact 3DJ
1normally opened contact jointly connect an end of described time relay 1SJ coil, the zero line of the described control power supply of another termination of described time relay 1SJ coil; Described voltage relay YJ transfer contact YJ
1common connect the common port of described control switch ZK, described voltage relay YJ transfer contact YJ
1normally opened contact connect an end of described time relay 2SJ coil, the zero line of the described control power supply of another termination of described time relay 2SJ coil.
Described constant temperature oven 4, for the stationary temperature environment is provided in process of the test, Metallized power capacitor to be measured is arranged in described constant temperature oven.
In this enforcement, described constant temperature oven 4 is baking oven.Described detected Metallized power capacitor is arranged in described baking oven.
Described control module 3, for the start and stop of controlling whole test unit and the work of constant temperature oven.
Described control module 3 comprises operation control module and constant temperature oven control module, and described constant temperature oven control module is for being controlled constant temperature oven.Described operation control module comprises air-break DK transfer contact DK
1, A.C. contactor 1QC, A.C. contactor 1QC transfer contact 1QC
1, 1QC
2, 1QC
4, current relay 4DJ transfer contact 4DJ
1, start button QA, stop button TA, control switch ZK, timer JSQ transfer contact JSQ
1, intermediate relay ZJ transfer contact ZJ
1; Described constant temperature oven control module comprises A.C. contactor 2QC, A.C. contactor 2QC transfer contact 2QC
1, A.C. contactor 1QC transfer contact 1QC
4; Described air-break DK Chang Kaiduan is connected with described electrical source of power terminals, described air-break DK common and described A.C. contactor 1QC transfer contact 1QC
1connect, the Chang Kaiduan of described control switch ZK is connected with the live wire of controlling power supply, the common of described stop button TA is connected with the common port of described control switch ZK, the common of the normally closed contact of described stop button TA and described start button QA and described A.C. contactor 1QC
2common jointly connect, the normally opened contact of described start button QA and described A.C. contactor 1QC transfer contact 1QC
2normally opened contact jointly with an end of described A.C. contactor 1QC coil, be connected, the other end of described A.C. contactor 1QC coil and described A.C. contactor 4DJ transfer contact 4DJ
1common connect, described A.C. contactor 4DJ transfer contact 4DJ
1normally closed contact and described timer JSQ transfer contact JSQ
1common connect, described timer JSQ transfer contact JSQ
1normally closed contact and described A.C. contactor ZJ transfer contact ZJ
1common connect, described A.C. contactor ZJ
1the normally closed contact of transfer contact is connected with the zero line of described control power supply; Described A.C. contactor 2QC transfer contact 2QC
1normally opened contact with the supply terminals of described constant temperature oven, be connected, described A.C. contactor 1QC transfer contact 1QC
4common with the common port of described control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
4normally opened contact with an end of described A.C. contactor 2QC coil, be connected, the other end of described A.C. contactor 2QC coil is connected with the zero line of described control power supply.The alternating current that described control power supply is 220V.
The excess current delay protection is the A to total current, B, the C three-phase, the B phase of reactor and the B of capacitor are protected mutually, once excess current appears in any one of these five electric currents, corresponding current transformer 1LHa, 1LHb, 1LHc, 2LHb and 3LHb all can make corresponding current relay 1DJ, 1DJ ', 1DJ 〞, 2DJ and 3DJ(action current Threshold value are 1.3 times of rated current) action, thereby make time relay 1SJ coil motion, through (hiding the combined floodgate moment excess current of surge current and the test product capacitor of electrical network) time delay in 2 seconds, the normally opened contact closure of time relay 1SJ, the intermediate relay ZJ coil electricity, described intermediate relay ZJ coil is charged, the transfer contact ZJ of described intermediate relay ZJ
1switch to normally opened contact, described A.C. contactor 1QC coil losing electricity, the transfer contact 1QC of described A.C. contactor 1QC
1switch to normally opened contact, whole device operation is exited, and completes protection.
The short-circuit current transient protection be located at total current B mutually in; once short circuit appears in described total current B phase current mutual inductor 1LHb; described current relay 4DJ(action current Threshold value is 3 times of rated current) coil is charged, described current relay 4DJ transfer contact 4DJ
1switch to normally opened contact, described A.C. contactor 1QC coil losing electricity, the transfer contact 1QC of described A.C. contactor 1QC
1switch to normally opened contact, whole device operation is exited, and completes protection.
The superpotential delay protection is located at the secondary side of described transformer 1YH; once superpotential appears in described trial voltage; the voltage of voltage transformer (VT) 2YH output is 1.1 times of rated voltages by voltage relay YJ(operation voltage Threshold value) coil connect; make the time relay 2SJ action in the superpotential timing circuit; through (hiding the surge voltage of electrical network) time delay in 10 seconds, the transfer contact 2SJ of time relay 2SJ
1switch to normally opened contact, the intermediate relay ZJ coil electricity, described intermediate relay ZJ coil is charged, the transfer contact ZJ of described intermediate relay ZJ
1switch to normally opened contact, described A.C. contactor 1QC coil losing electricity, the transfer contact 1QC of described A.C. contactor 1QC
1switch to normally opened contact, whole device operation is exited, and completes protection.
Embodiment 2:
On the basis of above-described embodiment, described control module also comprises the work indicating member.As shown in Figure 9, described work indicating member comprises signal lamp 1XD, 2XD, 3XD, described A.C. contactor 1QC transfer contact 1QC
5, described A.C. contactor 2QC transfer contact 2QC
2; The end of described signal lamp 1XD is connected with the positive pole of controlling power supply, and the other end of described signal lamp 1XD is connected with the negative pole of controlling power supply, described A.C. contactor 1QC transfer contact 1QC
5common connect the positive pole of described control power supply, described A.C. contactor 1QC transfer contact 1QC
5normally opened contact connect the end of described signal lamp 2XD, the negative pole of the described control power supply of another termination of described signal lamp 2XD, described A.C. contactor 2QC transfer contact 2QC
2common connect the positive pole of described control power supply, described A.C. contactor 2QC transfer contact 2QC
2normally opened contact connect the end of described signal lamp 3XD, the negative pole of the described control power supply of another termination of described signal lamp 3XD.Described work indicating member comprises power supply operation, capacitor run indicator and constant temperature oven run indicator, makes the duty of power supply, capacitor and constant temperature oven very clear.
Embodiment 3:
On the basis of above-described embodiment, described measuring protection module also comprises the display unit of excess current, short-circuit current and overvoltage signal.As shown in figure 10, the display unit of described excess current, short-circuit current and overvoltage signal comprises signal relay 1XJ, 2XJ, 3XJ, 4XJ, current relay 1DJ transfer contact 1DJ
2, current relay 1DJ ' transfer contact 1DJ
2', current relay 1DJ 〞 transfer contact 1DJ
2〞, current relay 2DJ transfer contact 2DJ
2, current relay 3DJ transfer contact 3DJ
2, voltage relay YJ transfer contact YJ
2; Described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the common of 〞 is connected with the common of described control switch ZK, described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the normally opened contact of 〞 is connected with an end of described signal relay 1XJ coil, and the other end of described signal relay 1XJ coil is connected with the zero line of described control power supply; Described current relay 2DJ transfer contact 2DJ
2normally opened contact with an end of described signal relay 2XJ coil, be connected, the other end of described signal relay 2XJ coil is connected with the zero line of described control power supply; Described current relay 3DJ transfer contact 3DJ
2normally opened contact with an end of described signal relay 3XJ coil, be connected, the other end of described signal relay 3XJ coil is connected with the zero line of described control power supply; Described current relay YJ transfer contact YJ
2normally opened contact with an end of described signal relay 4XJ coil, be connected, the other end of described signal relay 4XJ coil is connected with the zero line of described control power supply.
The display unit of described excess current, short-circuit current and overvoltage signal carries out the fault demonstration to total current excess current, reactor excess current, capacitor excess current, short-circuit current and overvoltage of capacitor fault by signal relay respectively, the detection while being conducive to device is broken down and processing.
The working method of the described Metallized power capacitor Accelarated aging test device that above-described embodiment provides is as follows:
S1: described Metallized power capacitor to be measured is placed in described constant temperature oven, the temperature of described constant temperature oven is adjusted to default temperature;
S2: closed described control switch ZK;
S3: press start button QA, described trial voltage is adjusted to the setting value of test specification;
S4: set described test period, start test;
S5: after reaching test period until described or survey Metallized power capacitor when damaged in default described test period, described test unit can stop automatically, and demonstration failure cause, also can exit test in the situation that unit exception is pressed stop button TA, when the temperature of constant temperature oven is down to normal temperature, take out described Metallized power capacitor;
S6: measure capacitance and the loss tangent of described detected Metallized power capacitor after test, dissect described detected Metallized power capacitor, observe the shelf depreciation of described detected power capacitor metalized film and the situation of self-healing.
Also needed to measure capacitance and the loss tangent of described detected Metallized power capacitor before test before carrying out above-mentioned experimental procedure.
Metallized power capacitor Accelarated aging test device described in the utility model, comprise voltage changing module, measuring protection module, constant temperature oven and control module.Described voltage changing module is for bringing up to the required magnitude of voltage of trial voltage by electrical source of power voltage; Described measuring protection module comprises test period metering units, access voltage measurement unit, condenser voltage measuring and protecting unit, total current measuring and protecting unit, reactor current measuring and protecting unit, condenser current measuring and protecting unit and delay protection setting unit, measure, access voltage measurement, total current measurement, reactor current measurement, capacitor electrode flow measurement, condenser voltage measurement for realizing test period, and superpotential and excess current are carried out to delay protection, the short circuit instantaneous protection; Described constant temperature oven is for providing the stationary temperature environment in process of the test, and Metallized power capacitor to be measured is arranged in described constant temperature oven; Described control module is for controlling the start and stop of whole test unit and the work of constant temperature oven.Said apparatus has effectively been avoided the problem that in the prior art, the capacitor aging test equipment mechanism is complicated, security is poor, the test period is long, expense is high, energy consumption is large.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (8)
1. a Metallized power capacitor Accelarated aging test device, is characterized in that, comprising:
Voltage changing module, for bringing up to electrical source of power voltage the required magnitude of voltage of trial voltage; Described voltage changing module comprises pressure regulator TYQ, transformer 1YH; The primary side of described pressure regulator TYQ and A.C. contactor 1QC transfer contact 1QC
1common connect, described pressure regulator TYQ secondary side is connected with the primary side of described transformer 1YH, described transformer 1YH secondary side is connected with reactor DKQ with detected Metallized power capacitor DRQ;
The measuring protection module, comprise test period metering units, access voltage measurement unit, condenser voltage measuring and protecting unit, total current measuring and protecting unit, reactor current measuring and protecting unit, condenser current measuring and protecting unit and delay protection setting unit;
Described test period metering units comprises timer JSQ and described A.C. contactor 1QC transfer contact 1QC
3; Described A.C. contactor 1QC transfer contact 1QC
3common with the common port of control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
3normally opened contact with an end of described timer JSQ coil, be connected, the other end of described timer JSQ coil is connected with the zero line of controlling power supply;
Described access voltage measurement unit comprises voltage table 1V, and for measuring the electrical source of power voltage of access, described voltage table 1V is connected to the primary side terminals of described pressure regulator TYQ;
Described condenser voltage measuring and protecting unit comprises voltage table 2V, voltage relay YJ, voltage transformer (VT) 2YH; Described voltage transformer (VT) 2YH primary side is connected to the secondary side of described transformer 1YH, one end of described voltage transformer (VT) 2YH secondary side is connected with an end of described voltage relay YJ coil jointly with the end of described voltage table 2V, and the other end of described voltage transformer (VT) 2YH secondary side is connected with the other end of described voltage relay YJ coil jointly with the other end of described voltage table 2V;
Described total current measuring and protecting unit comprises current transformer 1LHa, 1LHb, 1LHc, current relay 1DJ, 1DJ ', 1DJ 〞, current relay 4DJ, reometer 1A, described total current measuring and protecting unit carries out the excess current measuring and protecting to A, B, the C three-phase current of total current respectively; Described current transformer 1LHa primary side is connected in the A phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ ' coil of one termination of described current transformer 1LHa secondary side, the other end of the described current transformer 1LHa of another termination secondary side of described current relay 1DJ ' coil; The primary side of described current transformer 1LHb is connected in the B phase connection of primary side terminals of described pressure regulator TYQ, one end of described current transformer 1LHb secondary side is connected with an end of described current relay 1DJ coil, the other end of described current relay 1DJ coil is connected with the end of described reometer 1A, the other end of described reometer 1A is connected with an end of described current relay 4DJ coil, and the other end of described current relay 4DJ coil is connected with the other end of described current transformer 1LHb secondary side; Described current transformer 1LHc primary side is connected in the C phase connection of described pressure regulator TYQ primary side terminals, one end of the described current relay 1DJ of the one termination 〞 coil of described current transformer 1LHc secondary side, the other end of the described current transformer 1LHc of another termination secondary side of described current relay 1DJ 〞 coil;
Described reactor current measuring and protecting unit comprises reactor DKQ, current transformer 2LHb, current relay 2DJ, reometer 2A; The primary side of described current transformer 2LHb is connected in the B phase connection of described reactor DKQ terminals, one end of described current transformer 2LHb secondary side is connected with an end of described current relay 2DJ coil, the other end of the 2DJ coil of described current relay is connected with the end of described reometer 2A, and the other end of described reometer 2A is connected with the other end of described current transformer 2LHb secondary side;
Described condenser current measuring and protecting unit comprises current transformer 3LHa, 3LHb, 3LHc, reometer 3A, 4A, 5A, current relay 3DJ, detected Metallized power capacitor DRQ; The primary side of described current transformer 3LHa is connected in the A phase connection of detected described Metallized power capacitor DRQ terminals, described condenser current measuring and protecting unit carries out the excess current measuring and protecting to A, B, the C three-phase current of capacitor respectively, secondary side one end of described current transformer 3LHa is connected with the end of described reometer 4A, and the other end of described reometer 4A is connected with the other end of described current transformer 3LHa secondary side; The primary side of described current transformer 3LHb is connected in the B phase connection of detected described Metallized power capacitor DRQ terminals, one end of the secondary side of described current transformer 3LHb is connected with an end of described current relay 3DJ coil, the other end of described current relay 3DJ coil is connected with the end of described reometer 3A, and the other end of described reometer 3A is connected with the other end of described current transformer 3LHb secondary side; The primary side of described current transformer 3HLc is connected in the C phase connection of described detected described Metallized power capacitor DRQ terminals, the end of the described reometer 5A of secondary side one termination of described current transformer 3HLc, the other end of described reometer 5A is connected with the other end of described current transformer 3LHc secondary side;
Described delay protection setting unit comprises time relay 1SJ, 2SJ, intermediate relay ZJ, time relay 1SJ transfer contact 1SJ
1, time relay 2SJ transfer contact 2SJ
1, intermediate relay ZJ transfer contact ZJ
1, current relay 1DJ transfer contact 1DJ
1, current relay 1DJ ' transfer contact 1DJ
1', current relay 1DJ 〞 transfer contact 1DJ
1〞, current relay 2DJ transfer contact 2DJ
1, current relay 3DJ transfer contact 3DJ
1, voltage relay YJ transfer contact YJ
1; Described time relay 1SJ transfer contact 1SJ
1common and described time relay 2SJ transfer contact 2SJ
1common jointly connect the common port of described control switch ZK, described time relay 1SJ transfer contact 1SJ
1normally opened contact and described time relay 2SJ transfer contact 2SJ
1normally opened contact jointly connect an end of described intermediate relay ZJ coil, the zero line of the described control power supply of another termination of described intermediate relay ZJ coil; Described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, described current relay 2DJ transfer contact 2DJ
1, described current relay 3DJ transfer contact 3DJ
1common jointly connect the common port of described control switch ZK, described current relay 1DJ transfer contact 1DJ
1, described current relay 1DJ ' transfer contact 1DJ
1', described current relay 1DJ 〞 transfer contact 1DJ
1〞, described current relay 2DJ transfer contact 2DJ
1, described current relay 3DJ transfer contact 3DJ
1normally opened contact jointly connect an end of described time relay 1SJ coil, the zero line of the described control power supply of another termination of described time relay 1SJ coil; Described voltage relay YJ transfer contact YJ
1common connect the common port of described control switch ZK, described voltage relay YJ transfer contact YJ
1normally opened contact connect an end of described time relay 2SJ coil, the zero line of the described control power supply of another termination of described time relay 2SJ coil;
Constant temperature oven, be arranged in described constant temperature oven for stationary temperature environment, Metallized power capacitor to be measured are provided in process of the test;
Control module, for the start and stop of controlling whole test unit and the work of constant temperature oven.
2. Metallized power capacitor Accelarated aging test device according to claim 1 is characterized in that: described control module comprises operation control module and constant temperature oven control module, and described constant temperature oven control module is for being controlled constant temperature oven.
3. Metallized power capacitor Accelarated aging test device according to claim 1 and 2, it is characterized in that: described measuring protection module also comprises the display unit of excess current, short-circuit current and overvoltage signal.
4. Metallized power capacitor Accelarated aging test device according to claim 3, it is characterized in that: described control module also comprises the work indicating member.
5. Metallized power capacitor Accelarated aging test device according to claim 2, it is characterized in that: described operation control module comprises air-break DK transfer contact DK
1, described A.C. contactor 1QC, described A.C. contactor 1QC transfer contact 1QC
1, 1QC
2, current relay 4DJ transfer contact 4DJ
1, start button QA, stop button TA, described control switch ZK, timer JSQ transfer contact JSQ
1, intermediate relay ZJ transfer contact ZJ
1; Described constant temperature oven control module comprises A.C. contactor 2QC, A.C. contactor 2QC transfer contact 2QC
1, A.C. contactor 1QC transfer contact 1QC
4;
Described air-break DK normally opened contact is connected with described electrical source of power terminals, described air-break DK common and described A.C. contactor 1QC transfer contact 1QC
1connect, the Chang Kaiduan of described control switch ZK is connected with the live wire of described control power supply, the common of described stop button TA is connected with the common port of described control switch ZK, the common of the normally closed contact of described stop button TA and described start button QA and described A.C. contactor 1QC
2common jointly connect, the normally opened contact of described start button QA and described A.C. contactor 1QC transfer contact 1QC
2normally opened contact jointly with an end of described A.C. contactor 1QC coil, be connected, the other end of described A.C. contactor 1QC coil and described A.C. contactor 4DJ transfer contact 4DJ
1common connect, described A.C. contactor 4DJ transfer contact 4DJ
1normally closed contact and described timer JSQ transfer contact JSQ
1common connect, described timer JSQ transfer contact JSQ
1normally closed contact and described A.C. contactor ZJ transfer contact ZJ
1common connect, described A.C. contactor ZJ
1the normally closed contact of transfer contact is connected with the zero line of described control power supply; Described A.C. contactor 2QC transfer contact 2QC
1normally opened contact with the supply terminals of described constant temperature oven, be connected, described A.C. contactor 1QC transfer contact 1QC
4common with the common port of described control switch ZK, be connected, described A.C. contactor 1QC transfer contact 1QC
4normally opened contact with an end of described A.C. contactor 2QC coil, be connected, the other end of described A.C. contactor 2QC coil is connected with the zero line of described control power supply.
6. Metallized power capacitor Accelarated aging test device according to claim 4, it is characterized in that: described work indicating member comprises signal lamp 1XD, 2XD, 3XD, described A.C. contactor 1QC transfer contact 1QC
5, described A.C. contactor 2QC transfer contact 2QC
2;
The end of described signal lamp 1XD is connected with the positive pole of described control power supply, and the other end of described signal lamp 1XD is connected with the negative pole of controlling power supply, described A.C. contactor 1QC transfer contact 1QC
5common connect the positive pole of described control power supply, described A.C. contactor 1QC transfer contact 1QC
5normally opened contact connect the end of described signal lamp 2XD, the negative pole of the described control power supply of another termination of described signal lamp 2XD, described A.C. contactor 2QC transfer contact 2QC
2common connect the positive pole of described control power supply, described A.C. contactor 2QC transfer contact 2QC
2normally opened contact connect the end of described signal lamp 3XD, the negative pole of the described control power supply of another termination of described signal lamp 3XD.
7. Metallized power capacitor Accelarated aging test device according to claim 3, it is characterized in that: the display unit of described excess current, short-circuit current and overvoltage signal comprises signal relay 1XJ, 2XJ, 3XJ, 4XJ, current relay 1DJ transfer contact 1DJ
2, current relay 1DJ ' transfer contact 1DJ
2', current relay 1DJ 〞 transfer contact 1DJ
2〞, current relay 2DJ transfer contact 2DJ
2, current relay 3DJ transfer contact 3DJ
2, voltage relay YJ transfer contact YJ
2;
Described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the common of 〞 is connected with the common of described control switch ZK, described current relay 1DJ transfer contact 1DJ
2, described current relay 1DJ ' transfer contact 1DJ
2', described current relay 1DJ 〞 transfer contact 1DJ
2the normally opened contact of 〞 is connected with an end of described signal relay 1XJ coil, and the other end of described signal relay 1XJ coil is connected with the zero line of described control power supply; Described current relay 2DJ transfer contact 2DJ
2normally opened contact with an end of described signal relay 2XJ coil, be connected, the other end of described signal relay 2XJ coil is connected with the zero line of described control power supply; Described current relay 3DJ transfer contact 3DJ
2normally opened contact with an end of described signal relay 3XJ coil, be connected, the other end of described signal relay 3XJ coil is connected with the zero line of described control power supply; Described current relay YJ transfer contact YJ
2normally opened contact with an end of described signal relay 4XJ coil, be connected, the other end of described signal relay 4XJ coil is connected with the zero line of described control power supply.
8. Metallized power capacitor Accelarated aging test device according to claim 5, it is characterized in that: described constant temperature oven is baking oven.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396874.4U CN203385805U (en) | 2013-07-03 | 2013-07-03 | Metalized power capacitor rapid aging testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396874.4U CN203385805U (en) | 2013-07-03 | 2013-07-03 | Metalized power capacitor rapid aging testing device |
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| CN203385805U true CN203385805U (en) | 2014-01-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344861A (en) * | 2013-07-03 | 2013-10-09 | 指月集团有限公司 | Metallization power capacitor rapid aging testing device |
| CN106771715A (en) * | 2016-11-24 | 2017-05-31 | 中车永济电机有限公司 | A kind of electric transmission DC support electric capacity life-span checking test method |
| CN109188144A (en) * | 2018-09-21 | 2019-01-11 | 武汉大学 | A kind of capacitance aging on-line monitoring method of Modularized multi-level converter sub-module |
-
2013
- 2013-07-03 CN CN201320396874.4U patent/CN203385805U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344861A (en) * | 2013-07-03 | 2013-10-09 | 指月集团有限公司 | Metallization power capacitor rapid aging testing device |
| CN103344861B (en) * | 2013-07-03 | 2016-04-13 | 指月集团有限公司 | A kind of Metallized power capacitor Accelarated aging test device |
| CN106771715A (en) * | 2016-11-24 | 2017-05-31 | 中车永济电机有限公司 | A kind of electric transmission DC support electric capacity life-span checking test method |
| CN106771715B (en) * | 2016-11-24 | 2019-03-08 | 中车永济电机有限公司 | A kind of electric transmission DC support capacitor service life checking test method |
| CN109188144A (en) * | 2018-09-21 | 2019-01-11 | 武汉大学 | A kind of capacitance aging on-line monitoring method of Modularized multi-level converter sub-module |
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