CN2442277Y - Combined detector for general safety property - Google Patents
Combined detector for general safety property Download PDFInfo
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- CN2442277Y CN2442277Y CN 00239383 CN00239383U CN2442277Y CN 2442277 Y CN2442277 Y CN 2442277Y CN 00239383 CN00239383 CN 00239383 CN 00239383 U CN00239383 U CN 00239383U CN 2442277 Y CN2442277 Y CN 2442277Y
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Abstract
The utility model discloses a combined detector for general safety property. The utility model is used for testing the general safety property of household appliances and electrical appliances with similar purposes. The utility model adopts a modular structure and the utility model can realize the manual and automatic tests of an insulating resistor of the electrical appliances, leakage current, electric strength, an earth resistor, voltage and current power, low-voltage starting performance, etc. through an externally arranged common logic control module. The module is controlled by a relay, the whole combined detector only needs one wiring, the tests of all items can be automatically finished, and the testing accuracy of the combined detector is not affected. The utility model has the advantages of reliable work, high testing accuracy, convenient operation and high performance and price ratio and the utility model can satisfies the requirements of electric appliance type experiments and the routine tests of electric appliances produced by small-size and medium-size enterprises.
Description
The utility model relates to a kind of universal safety performance composite set that is used for household electrical appliance and the test of similar applications electric appliance general security performance, belongs to electrical instrument measurement mechanism technical field.
It is reported that test security appliance performance mainly adopts following three kinds of methods at present both at home and abroad:
1, separate unit instrument measurement.Adopt the different different performance index of separate unit Meter Test, its advantage is the test accuracy height, reliable operation, and shortcoming is to use inconvenient operation, and automaticity is low, only is suitable for the laboratory and uses.
2, desk-top combined measuring device test.Need only be once or the secondary connection process, just can test all performance index, advantage is to use easy to operate, and the automaticity height is applicable to that medium and small factory electric equipment products produce check and commodity inspection, quality inspection, laboratory.But general desk-top proving installation adopts Single-chip Controlling, and functional reliability is not high under abominable running environment.When the insulation resistance of test prototype, leakage current, electrical strength, the electric leakage of device itself can be superimposed upon on the tested model machine, if device materials selects improper or the control circuit structural design is improper, will certainly add the electric leakage of bigger device, influences accuracy of test.3, detection line test.Adopt machinery production line, testing apparatus and microsystem, advantage is that detection speed is fast, and data-handling capacity is strong, the automaticity height, be applicable to output big in, large enterprise.But its investment is big, and institute takes up space big, safeguards and the operating cost height.
The utility model purpose provides that a kind of occupation of land is little, easy to maintenance, automaticity is high, reliability is high, accuracy is higher, be applicable to the relay control device of household electrical appliance universal safety performance combined test, it matches with the common logic control module, can realize the function such as automatic detection, data transmission, printing of electric appliance general security performance.
The purpose of this utility model is to realize like this.Form this device by megger test module, leakage current testing module, electric current and voltage power test module, earth resistance module, electrical strength test module, relay control module, output wiring terminal and the testing power supply etc. that are installed in the instrument rack.Install for convenient, the common logic control module also is installed in device inside (Fig. 1).Form the logic relay between each test instrumentation module and the lead-out terminal and connects, the relay in the test loop switches to different test loops with the tested model machine that contactor will be connected on outlet terminal, the test of realization disparity items.Wherein, stake resistance module output terminal I+, I-, R+, R-links to each other with outlet terminal " i ", " shell i ", " v ", " shell v " respectively through contactor KM1.Electrical strength test module output terminal NH, NL through high-voltage relay KR11, KR21 and contactor KM5, high-voltage relay KR51 respectively with outlet terminal L, " " link to each other.Megger test module output terminal JH, JL through high-voltage relay KR31, KR41 and KM5, KR51 respectively with outlet terminal " ", L links to each other.Leakage current module output terminal XL, XN, XE through contactor KM2, relay KR 7 and KM5, KR51 respectively with outlet terminal L, N, " " link to each other.The output of electric current and voltage power model V1, V2, I1, I2 link to each other with outlet terminal L, N respectively through contactor KM3, KM4 and KM5.The output of each module all has corresponding contactor or relay to control, KM1 controls earthing test, the test of KR11, KR21 control electrical strength, KR31, KR41 control megger test, KM2, KR7 control leakage current testing, KM3 control electric current and voltage power test, the test of KM4 control low voltage starting.KM5 is electrical strength and other test event interlocking contactor, and when surveying electrical strength, KM5 disconnects, when surveying other project, and the KM5 closure.KR51 is insulation resistance and other test event interlocking high-voltage relay, when surveying insulation resistance, and the KR51 closure, when surveying other project, KR51 disconnects.
The utlity model has following advantage:
1, in electric control circuit, adopts high-voltage relay KR51 and contactor KM5, improve the insulation resistance and the electrical strength of device itself, improved test accuracy.2, can test four safety indexs and electrical performance indexes, tested model machine capacity can reach more than the 5000W.3, adopt modular construction, easy to maintenance, realize the function expansion easily.4, floor area is little, and cost is low, and the automaticity height is applicable to that dispatching from the factory of medium and small enterprise electric equipment products detected and the type approval test of electrical equipment, has the good practicability energy.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a megger test synoptic diagram of the present utility model.
Fig. 3 is a leakage current testing synoptic diagram of the present utility model.
Fig. 4 is an electric current and voltage power test synoptic diagram of the present utility model.
Fig. 5 is an earth resistance synoptic diagram of the present utility model.
Fig. 6 is an electrical strength test synoptic diagram of the present utility model.
Fig. 7 is an electric control circuit schematic diagram of the present utility model.
Fig. 8 is a relay control module scheme of installation of the present utility model.
Fig. 9 is an output wiring terminal synoptic diagram of the present utility model.
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described.
With reference to Fig. 1, device adopts 440mm * 480mm * 1600mm standard cabinet, and each module adopts the drawer type cabinet, links to each other with rack by guide rail, and each drawer all can take off.Each test module is selected the various test instrumentations of design voluntarily for use, and every instrument has standard interface and links to each other with the test major loop with Logic control module.
Fig. 2 is the megger test synoptic diagram, according to national standard, megger test voltage is the 500V DC voltage, module output terminal JH, JL are connected to the ground terminal and the live wire of tested model machine respectively, JH is the 500V high-voltage output end, JL is a low-voltage output, send metering circuit by the insulated electro resistive of inside modules, measured insulating resistance value is presented on the charactron gauge outfit of module faceplate.Fig. 3 is the leakage current testing synoptic diagram, the leakage current testing circuit adopts patent: the test circuit among the ZL99235202.9, leak-testing voltage is 1.06 times of model machine rated voltage, module output terminal XL, XN, XE are connected to live wire, zero line, the ground terminal of tested model machine respectively, metering circuit is sent in leakage current change by inside modules, measured leakage current values is presented on the charactron gauge outfit of module faceplate.Fig. 4 is an electric current and voltage power test module diagram, and V1, V2, I1, I2 are respectively voltage, the current input terminal of module, through voltage, electric current, power transmission circuit, measured electric current and voltage performance number is presented on the charactron gauge outfit of module faceplate.Fig. 5 is the earth resistance synoptic diagram, and I+, I-, R+, R-are the module external connection end.According to national standard, the earth resistance electric current can be set at DC25A, the output of DC25A constant current source I+, I-are connected to the ground wire and the shell end of tested model machine, R+, R-are the stake resistance sampling end, also be connected to the ground wire and the shell end of tested model machine, the sampling end signal is presented at measured grounding resistance on the charactron gauge outfit of module faceplate through the stake resistance transmission circuit.Fig. 6 is electrical strength test synoptic diagram, and NH is the module high-voltage output end, and NL is the module low-voltage output, is connected to the live wire and the ground terminal of tested model machine respectively, the generation of high pressure timing circuit control high tension voltage, the size of adjustable side scalable high tension voltage.The Hi-pot test loop current is gathered to the input of loop current transmission circuit through sample resistance R.The setting current comparator circuit is the size of Hi-pot test loop current and setting current relatively, when test loop electric current during greater than setting current, provides defective warning, and the interruption Hi-pot test.The high tension voltage value is presented on the charactron gauge outfit of module faceplate through the high tension voltage transmission circuit.Form the logic relay between each test module and the lead-out terminal and be connected, the external delivery point of module switches to outlet terminal through contactor, relay.Fig. 7 is the electric control circuit schematic diagram, and YL, YN are the live wire and the zero lines of testing power supply, are leakage current, and electric current and voltage power and low voltage starting test provide power supply.Stake resistance module output terminal I+, I-, R+, R-are connected to 1,5,13,43 ends of contactor KM1 respectively, and outlet terminal " i ", " shell i ", " v ", " shell v " are received in KM1 output 2,6,14,44 respectively.Electrical strength test module output terminal NH, NL are connected to 3 ends of high-voltage relay KR11 and KR21 respectively, and the output terminal 2 of KR11 links to each other with 21 ends of KM5, and KM5 output terminal 22 is connected to outlet terminal L.Output 2 ends of KR21 link to each other with 1 end of KR51 (B point), the output terminal 2 of KR51 be connected to outlet terminal " ".Megger test module output terminal JH, JL are connected to 3 ends of high-voltage relay KR31 and KR41, and the output terminal 2 of KR31 links to each other with 3 ends of KR51, and output 2 ends of KR41 link to each other with 5 ends of KM5 (A point), and the output terminal 6 of KM5 is connected to outlet terminal L.Test is exported XL, XN with the leakage current testing module with power supply YL, YN end respectively by leakage pressure regulator XT and leakage isolating transformer XB and is attached to 1,5 ends of contactor KM2.The output terminal 2 of KM2 is connected to 5 ends (A point) of KM5, and the output terminal 6 of KM2 is connected to 3 ends of KM5 (C point), and the output terminal 4 of KM5 is connected to outlet terminal " N ".Another output terminal of leakage current testing module XE links to each other with 3 ends of relay KR 7, and the output terminal 2 of KR7 is connected to 1 end of KR51 (B point).Testing power supply YL, YN respectively with 1,5 ends of contactor KM3,5 ends of KM4 and electric current and voltage power model output V2 end link to each other, KM3 output terminal 2 is connected to V1, the I1 end of power model.The I2 of power model is connected to 3 ends of KM3 and KM4.6 of KM3 and KM4 is connected to 3 ends (C point) of KM5.YL, YN provide the low voltage starting testing power supply through low voltage starting pressure regulator DT.DT output is connected to 1 end of KM4, V2, the KM3 of power model and 5 ends of KM5 respectively.The output terminal 2 of KM4 links to each other with 1 end of filamentary silver box YS.The test of KM1 control stake resistance, the test of KM2, KR7 control leakage current, the test of KM3 control electric current and voltage power, the test of KM4 control low voltage starting performance, the test of KR11, KR21 control electrical strength, the test of KR31, KR41 control insulation resistance.When testing certain project, control corresponding contactor or relay closes.Among Fig. 7, the A point outputs to the point in parallel of L end for insulation module, leakage module and electric current and voltage power model, electrical strength module output NH also should be connected to the L end through KR11, but directly high pressure is added on KM2, KM3 and the KM4 when avoiding Hi-pot test, damage contactor, reduce the electrical strength test accuracy, adopt the interlocking contactor of contactor KM5 as electrical strength and other test event.When surveying electrical strength, KM5 disconnects, when surveying other project, and the KM5 closure.KM5 must select the higher A.C. contactor of insulation resistance for use, both can tested model machine capacity be reached more than the 5000W by the above measuring current of 20A, can tolerate high pressure again.The C point is for leaking the point in parallel that module and electric current and voltage power model output to the N end, and during Hi-pot test, high-pressure side is connected on the L end, in model machine inside, L, N are two input ends of electrified body, and the N end also has high pressure, the C point links to each other with the N end through 3,4 ends of KM5, reduces the influence of high pressure to KM2, KM3, KM4.During the electrical strength test, KR11, KR21 normally opened contact 3,2 are connected, KM5 normally closed contact 21,22 is connected, KR51 normally closed contact 1,2 is connected, 21,22 of 3,2 ends of NH by KR11, KM5 is connected to outlet terminal L, 3,2 ends of NL by KR21,1,2 of KR51 be connected to outlet terminal " ".During other project testing, corresponding relay or contactor normally opened contact are connected, and KM5 normally opened contact 5,6 and 3,4 is connected, and each module output terminal is connected to the corresponding point of outlet terminal respectively.The B point is the point in parallel that electrical strength module and leakage current module are held with outputing to, insulation resistance module output JH also should hold through KR31 with being connected to, if contactor, relay in parallel between JH, the JL are many more, the lead that connects is many more, long more, the insulation resistance of lead is lower, can reduce tested model machine megger test value,, adopt the interlock relay of high-voltage relay KR51 as insulation resistance and other test event for avoiding above-mentioned situation.When surveying insulation resistance, the KR51 closure, when surveying other project, KR51 disconnects.During megger test, KR31, KR41 normally opened contact 3,2 are connected, and KR51 normally opened contact 3,2 is connected, KM5 normally opened contact 5,6 is connected, and JH is through 3,2 ends of KR31,3,2 of KR51 be connected to outlet terminal " ", JL is through 3,2 ends of KR41, and 5,6 of KM5 is connected to outlet terminal L.During other project testing, corresponding relay or contactor normally opened contact are connected, and KR51 normally closed contact 1,2 is connected, and each module output terminal is connected to the corresponding point of outlet terminal respectively.Each contactor, relay are installed in the relay control module, install and arrange as Fig. 8, and according to the capacity choose reasonable KM1～KM5 contactor model of tested model machine, KM5 must select the high contactor of insulation resistance for use.Line by high pressure in the test adopts hi-line, as with KR11, the line that KM5 links to each other, the electric current that hi-line passes through is less, when the electric current of tested model machine is big (more than the 5A), adopts common multiply flexible cord to add the method for plastic casing.The line that links to each other with KR21, KR31, KR41, KR51, KR7 adopts the silicon rubber line, and insulation better.Leak-testing pressure regulator XT, leak-testing isolating transformer XB, the electric power incoming line of low voltage starting test pressure regulator DT and device is installed on the rack inner bottom plating.Outlet terminal is installed on the panel of rack below, and it is arranged as Fig. 9.Each terminals adopts binding post, makes things convenient for wiring.L, N, hold the fire that is connected to tested model machine respectively, zero, hold, ground i, v and be attached to detected sample machine ground and hold, shell i, shell v also are attached to detected sample machine shell end.All operations carries out on common logic control module panel during test.The output control relay control module of common logic control is carried out the conversion and the test of various test events.
Claims (8)
1, a kind of universal safety performance combined measuring device that is used for household electrical appliance and the test of similar applications security appliance performance, it is made up of megger test module, leakage current testing module, electric current and voltage power test module, common logic control module, earth resistance module, electrical strength test module, relay control module, output wiring terminal and testing power supply, it is characterized in that forming between each test instrumentation module and the output wiring terminal logic relay and connects.
2, proving installation according to claim 1, it is characterized in that megger test module output terminal JH, JL are connected to 3 ends of high-voltage relay KR31 and KR41, the output terminal 2 of KR31 links to each other with 3 ends of KR51, output 2 ends of KR41 link to each other with 5 ends of KM5 (A point), and the output terminal 6 of KM5 is connected to outlet terminal L.
3,, it is characterized in that testing with power supply YL, YN end by leaking pressure regulator XT and leaking 1,5 ends that isolating transformer XB exports XL, XN with the leakage current testing module respectively and is attached to contactor KM2 according to claim 1,2 described proving installations.The output terminal 2 of KM2 is connected to 5 ends (A point) of KM5, the output terminal 6 of KM2 is connected to 3 ends (C point) of KM5, the output terminal 4 of KM5 is connected to outlet terminal " N ", and another output terminal of leakage current testing module XE links to each other with 3 ends of relay KR 7, and the output terminal 2 of KR7 is connected to 1 end of KR51 (B point).
4, according to claim 1,2,3 described proving installations, it is characterized in that testing power supply YL, YN respectively with 1,5 ends of contactor KM3,5 ends of KM4 and electric current and voltage power model output V2 end link to each other, KM3 output terminal 2 is connected to V1, the I1 end of power model, the I2 of power model is connected to 3 ends of KM3 and KM4, and 6 of KM3 and KM4 is connected to 3 ends (C point) of KM5.
5, according to claim 1,2,3,4 described proving installations, it is characterized in that low voltage starting pressure regulator DT output is connected to 1 end of KM4, V2, the KM3 of power model and 5 ends of KM5 respectively, the output terminal 2 of KM4 links to each other with 1 end of filamentary silver box YS.
6, according to claim 1,2,3,4,5 described proving installations, it is characterized in that stake resistance module output terminal I+, I-, R+, R-are connected to 1,5,13,43 ends of contactor KM1 respectively, outlet terminal " i ", " shell i ", " v ", " shell v " are received in KM1 output 2,6,14,44 respectively.
7, according to claim 1,2,3,4,5,6 described proving installations, it is characterized in that electrical strength test module output terminal NH, NL are connected to 3 ends of high-voltage relay KR11 and KR21 respectively, the output terminal 2 of KR11 links to each other with 21 ends of KM5, KM5 output terminal 22 is connected to outlet terminal L, output 2 ends of KR21 link to each other with 1 end of KR51 (B point), the output terminal 2 of KR51 be connected to outlet terminal " ".
8,, it is characterized in that KR51 adopts the high pressure vacuum relay according to claim 1,2,3,4,5,6,7 described proving installations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00239383 CN2442277Y (en) | 2000-09-07 | 2000-09-07 | Combined detector for general safety property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00239383 CN2442277Y (en) | 2000-09-07 | 2000-09-07 | Combined detector for general safety property |
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| Publication Number | Publication Date |
|---|---|
| CN2442277Y true CN2442277Y (en) | 2001-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00239383 Expired - Fee Related CN2442277Y (en) | 2000-09-07 | 2000-09-07 | Combined detector for general safety property |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128984A (en) * | 2010-12-06 | 2011-07-20 | 河南省电力公司南阳供电公司 | Comprehensive tester of programmable power supply insulation resistance and earthed resistance |
| CN103267923A (en) * | 2013-05-10 | 2013-08-28 | 陈肖粟 | Safety grounding all-purpose online detector |
| CN104267251A (en) * | 2014-10-22 | 2015-01-07 | 江玉柱 | Electric protection parameter calibrating device and method for military equipment |
| CN104897999A (en) * | 2015-06-18 | 2015-09-09 | 青岛艾诺智能仪器有限公司 | Comprehensive tester for electric appliance safety performance |
| CN107685032A (en) * | 2017-08-14 | 2018-02-13 | 苏州新视野自动化科技有限公司 | High-voltage DC contactor all-round property testing streamline |
-
2000
- 2000-09-07 CN CN 00239383 patent/CN2442277Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128984A (en) * | 2010-12-06 | 2011-07-20 | 河南省电力公司南阳供电公司 | Comprehensive tester of programmable power supply insulation resistance and earthed resistance |
| CN103267923A (en) * | 2013-05-10 | 2013-08-28 | 陈肖粟 | Safety grounding all-purpose online detector |
| CN104267251A (en) * | 2014-10-22 | 2015-01-07 | 江玉柱 | Electric protection parameter calibrating device and method for military equipment |
| CN104267251B (en) * | 2014-10-22 | 2016-06-01 | 江玉柱 | Military hardware electric protection parameter calibrating installation and method |
| CN104897999A (en) * | 2015-06-18 | 2015-09-09 | 青岛艾诺智能仪器有限公司 | Comprehensive tester for electric appliance safety performance |
| CN107685032A (en) * | 2017-08-14 | 2018-02-13 | 苏州新视野自动化科技有限公司 | High-voltage DC contactor all-round property testing streamline |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |