CN202256592U - Multipurpose voltage-withstand tester circuit structure for stator coils of motor - Google Patents
Multipurpose voltage-withstand tester circuit structure for stator coils of motor Download PDFInfo
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- CN202256592U CN202256592U CN2011203893471U CN201120389347U CN202256592U CN 202256592 U CN202256592 U CN 202256592U CN 2011203893471 U CN2011203893471 U CN 2011203893471U CN 201120389347 U CN201120389347 U CN 201120389347U CN 202256592 U CN202256592 U CN 202256592U
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Abstract
The utility model relates to a multipurpose voltage-withstand tester circuit structure for stator coils of a motor, which is used for testing voltage-withstand values between different windings of the stator coils of the motor and between windings and the ground and voltage-withstand values of varnished wires and insulation paper. The circuit structure is provided with an automatic coupling voltage regulator T1, a regulator input end control circuit formed by an alternating current contactor KM1 control circuit and the like and a 220v/ 4000v air-immersed transformer T2. The regulator input end control circuit is further in parallel connection with three control sub-circuits of three alternating contactors KM2, KM3 and KM4 which are in series connection with three gears of a change-over switch SA1. Two output ends of the air-immersed transformer T2 are further connected with three groups of leads, and each group is provided with three leads U, V and W. The multipurpose voltage-withstand tester circuit structure for the stator coils of the motor has the advantages of greatly improving safety and working speed of testing due to the fact that wiring needs to be done only once when voltage-withstand values between the windings of the stator coils or between the windings and the ground are tested. With only two connecting plugs, the test can be switched to the voltage-withstand test for the varnished wires and the insulation paper, thread ends are less, operation is simple and reliability is high.
Description
Technical field
The utility model relates to multi-usage stator coils of motor voltage-withstand test machine circuit structure, be applied between the different windings of test motor stator coil, winding over the ground between, and the withstand voltage of enameled wire, insulating paper.
Background technology
The line construction of existing test motor stator coil voltage-withstand test machine has 0～220V/250V automatic coupling voltage regulator T1; And have by A.C. contactor KM1 operation circuit, air-break SB1, power switch SB2 and be in series, power switch SB2 is often driven the pressure regulator input end control circuit of main contacts K switch M1 self-locking by A.C. contactor KM1 one; Also be with a 220V/4000V dry-type transformer T2; Overcurrent relay K1; Often open main contacts K switch M1 and connect with automatic coupling voltage regulator T1 two input ends respectively for two of A.C. contactor KM1; Two output terminals of automatic coupling voltage regulator T1 link to each other with two input ends of 220V/4000V dry-type transformer T2 respectively.Its deficiency is to do alternate or voltage-withstand test over the ground to every coil of stator of motor, needs repeatedly manual the discharge, pulls down the crocodile clip of 220V/4000V dry-type transformer T2 two output terminal E, O, connects new test point again.Do like this and promptly lose time and dangerous.In the time need doing voltage-withstand test and make checking and accepting, can't test because of not exporting higher magnitude of voltage continuously again the enameled wire purchased and insulating paper.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art; Provide a kind of and need not discharge repeatedly and the line construction of the multi-usage stator coils of motor voltage-withstand test machine that last crocodile clip is can the test motor stator coil withstand voltage, it can also export the continuously adjustable high-voltage value of using as test insulating paper and enameled wire easily.
The purpose of the utility model can reach through following technical proposals: (a) multi-usage stator coils of motor voltage-withstand test machine circuit structure has 0～220V/250V automatic coupling voltage regulator T1; And have by A.C. contactor KM1 operation circuit, air-break SB1, power switch SB2 and be in series, power switch SB2 is often driven the pressure regulator input end control circuit of main contacts K switch M1 self-locking by A.C. contactor KM1 one; Also be with a 220V/4000V dry-type transformer T2, overcurrent relay K1; Often open main contacts K switch M1 and connect with automatic coupling voltage regulator T1 two input ends respectively for two of A.C. contactor KM1; Two output terminals of automatic coupling voltage regulator T1 link to each other with two input ends of 220V/4000V dry-type transformer T2 respectively; It is characterized in that following three control branch roads parallel connection of three A.C. contactor KM2 that (i) pressure regulator input end control circuit also connects respectively with reversing switch SA1 three gears, KM3, KM4: A.C. contactor KM2 operation circuit and normally closed main contacts K switch M3, KM4 are in series; A.C. contactor KM3 operation circuit and normally closed main contacts K switch M2, KM4 are in series; A.C. contactor KM4 operation circuit and normally closed main contacts K switch M3, KM2 are in series; (ii) the low pressure end of 220V/4000V dry-type transformer T2 two output terminals is connected with the ground wire D0 of the end of a thread band crocodile clip; The output high-pressure side of 220V/4000V dry-type transformer T2, output low pressure end also link to each other with following three groups of lead-in wires respectively; Every group has three lead-in wire U, V, W: first group; Lead-in wire U, V link to each other with the output low pressure end; Lead-in wire W links to each other with the output high-pressure side, and every lead-in wire seals in of A.C. contactor KM2 and often opens main contacts K switch M2; Second group, lead-in wire U, W link to each other with the output low pressure end, lead-in wire V with export high-pressure side and link to each other, every lead-in wire seals in of A.C. contactor KM3 and often opens main contacts K switch M3; The 3rd group, lead-in wire W, V link to each other with the output low pressure end, lead-in wire U with export high-pressure side and link to each other, every lead-in wire seals in of A.C. contactor KM4 and often opens main contacts K switch M4; The lead Du, Dv, Dw that re-uses three the end of a thread band crocodile clips is connected in parallel the lead-in wire that title in three groups of lead-in wires is all U or V or W respectively.
(b) above-mentioned multi-usage stator coils of motor voltage-withstand test machine circuit structure is characterized in that automatic coupling voltage regulator T1 two output terminals use two sockets to be connected with plug XC1, the XC2 of 220V/4000V dry-type transformer T2 two input ends respectively; Also have a 220V/25000V dry-type transformer T3, T3 two input ends use two plug XC1 ', XC2 ' to connect with two sockets of automatic coupling voltage regulator T1 two output terminals respectively; T3 two output terminals are lead-in wire E ', O ' of two band crocodile clips.
The utlity model has following advantage:
1, a test stator alternate or withstand voltage over the ground needs wiring once get final product, and directly turn switch gear promptly can switch to different withstand voltage between mutually or every relatively voltage-withstand test; Increased substantially safety and the operating rate in the test.
2, promptly can switch to the voltage-withstand test of enameled wire and insulating paper through two connection-pegs, the end of a thread is few and simple and clear, and is simple to operate and reliability is high.
Description of drawings
Fig. 1 is the line construction of existing test motor stator coil voltage-withstand test machine.
KM1 is an A.C. contactor among the figure, and T1 is an automatic coupling voltage regulator, and T2 is the 220V/4000V dry-type transformer, the SB1 air-break; SB2 is a power switch, and K1 is an overcurrent relay, and L is a phase line; N is a zero line, and R is a protective resistance, and E, O are 220V/4000V dry-type transformer two output terminals.
Fig. 2 is the utility model multi-usage electric stator coil voltage-withstand test machine circuit structure.
KM1, KM2, KM3, KM4 are A.C. contactors among the figure, and T1 is an automatic coupling voltage regulator, and T2 is the 220V/4000V dry-type transformer, and T3 is the 220V/25000V dry-type transformer; SB1 air-break, SB2 are power switches, and K1 is an overcurrent relay; L is a phase line, and N is a zero line, and R1, R2 are protective resistances; E ', O ' are 220V/25000V dry-type transformer two output terminals, and SA1 is a reversing switch, and U, V, W are three lead-in wires that are connected with the every extension line mutually of motor stator three phase windings.XC1, XC2, XC1 ', XC2 ' are plugs.
Embodiment
The utility model has increased by three places on the line construction basis of existing test motor stator coil voltage-withstand test machine:
First place is three control branch roads that pressure regulator input end control circuit has increased reversing switch SA1 three gears places.Article three, have A.C. contactor KM2, KM3, KM4 respectively on the control branch road, be used to control the situation that U, V, W three lead-in wires apply high pressure.
Second place is that output high-pressure side, the output low pressure end of 220V/4000V dry-type transformer T2 links to each other with three groups of lead-in wires respectively.Every group of lead-in wire all contains U, V, W three lead-in wires.The break-makes of three groups of lead-in wires are controlled by the main contacts switch of often opening of A.C. contactor KM2, KM3, KM4 respectively, and the break-make of each bar lead-in wire is all often opened the control of main contacts switch by same A.C. contactor in the lead-in wire of three in every group.The lead Du, Dv, Dw that uses three the end of a thread band crocodile clips is connected in parallel the lead-in wire that title in three groups of lead-in wires is all U or V or W respectively.Low pressure end in T2 two output terminals is connected with the ground wire D0 of the end of a thread band crocodile clip.
When measuring the withstand voltage between winding, as long as lead Da, Db, DC are linked to each other with U, V, W three phase windings of tested motor stator winding respectively.Survey alternate when withstand voltage, simultaneously also to carrying out withstand voltage test, because other two will be connected with ground mutually with the withstand voltage of ground.Therefore; When reversing switch SA1 selects gear to be the conducting of A.C. contactor KM3 operation circuit; All normally closed main contacts K switch M3 all break off, and all often to open main contacts K switch M3 all closed, thereby the operation circuit no current of A.C. contactor KM2, KM4 passes through.So in three groups of lead-in wires, that group lead-in wire that only receives often to open the break-make of main contacts K switch M3 control links to each other with output high-pressure side, the output low pressure end of 220V/4000V dry-type transformer T2.At this moment, can record withstand voltage between motor B phase winding and A, C two phase windings.If the low pressure end ground connection of T2 output, then can record the withstand voltage between B phase winding and the ground this moment.In like manner, Rotation With Changing can record the withstand voltage between A phase winding and B, C two phase windings, A phase winding withstand voltage over the ground to the gear of switch S A1.And can record the withstand voltage between C phase winding and B, A two phase windings, C phase winding withstand voltage over the ground.
The 3rd place is that automatic coupling voltage regulator T1 two output terminals use two sockets to be connected with plug XC1, the XC2 of 220V/4000V dry-type transformer T2 two input ends respectively; Also have a 220V/25000V dry-type transformer T3, T3 two input ends use two plug XC1 ', XC2 ' to connect with two sockets of automatic coupling voltage regulator T1 two output terminals respectively; T3 two output terminals are lead-in wire E ', O ' of two band crocodile clips.This connected mode can be easily be transformed on test enameled wire and the insulating paper from the test stator winding is withstand voltage, as long as extract plug XC1, the XC2 of T2 two input ends, changes and plugs 3 liang of input ends and use two plug XC1 ', XC2 ' respectively.Test is during enameled wire, and the enameled wire of two certain-lengths is cut with scissors mutually, and outer lacquer is removed in the termination, go between on the folder E ', O ', and regulation voltage level gets final product.Test is during insulating paper, and the insulating paper of certain area is clipped between two metal plates, and two derbies connect go between E ', O ' respectively, progressively increase the withstand voltage that magnitude of voltage can record insulating paper.
Claims (2)
1. multi-usage stator coils of motor voltage-withstand test machine circuit structure has 0～220V/250V automatic coupling voltage regulator T1; And have by A.C. contactor KM1 operation circuit, air-break SB1, power switch SB2 and be in series, power switch SB2 is often driven the pressure regulator input end control circuit of main contacts K switch M1 self-locking by A.C. contactor KM1 one; Also be with a 220V/4000V dry-type transformer T2, overcurrent relay K1; Often open main contacts K switch M1 and connect with automatic coupling voltage regulator T1 two input ends respectively for two of A.C. contactor KM1; Two output terminals of automatic coupling voltage regulator T1 link to each other with two input ends of 220V/4000V dry-type transformer T2 respectively; It is characterized in that following three control branch roads parallel connection of three A.C. contactor KM2 that (i) pressure regulator input end control circuit also connects respectively with reversing switch SA1 three gears, KM3, KM4: A.C. contactor KM2 operation circuit and normally closed main contacts K switch M3, KM4 are in series; A.C. contactor KM3 operation circuit and normally closed main contacts K switch M2, KM4 are in series; A.C. contactor KM4 operation circuit and normally closed main contacts K switch M3, KM2 are in series; (ii) the low pressure end of 220V/4000V dry-type transformer T2 two output terminals is connected with the ground wire D0 of the end of a thread band crocodile clip; The output high-pressure side of 220V/4000V dry-type transformer T2, output low pressure end also link to each other with following three groups of lead-in wires respectively; Every group has three lead-in wire U, V, W: first group; Lead-in wire U, V link to each other with the output low pressure end; Lead-in wire W links to each other with the output high-pressure side, and every lead-in wire seals in of A.C. contactor KM2 and often opens main contacts K switch M2; Second group, lead-in wire U, W link to each other with the output low pressure end, lead-in wire V with export high-pressure side and link to each other, every lead-in wire seals in of A.C. contactor KM3 and often opens main contacts K switch M3; The 3rd group, lead-in wire W, V link to each other with the output low pressure end, lead-in wire U with export high-pressure side and link to each other, every lead-in wire seals in of A.C. contactor KM4 and often opens main contacts K switch M4; The lead Du, Dv, Dw that re-uses three the end of a thread band crocodile clips is connected in parallel the lead-in wire that title in three groups of lead-in wires is all U or V or W respectively.
2. multi-usage stator coils of motor voltage-withstand test machine circuit structure according to claim 1 is characterized in that automatic coupling voltage regulator T1 two output terminals use two sockets to be connected with plug XC1, the XC2 of 220V/4000V dry-type transformer T2 two input ends respectively; Also have a 220V/25000V dry-type transformer T3, T3 two input ends use two plug XC1 ', XC2 ' to connect with two sockets of automatic coupling voltage regulator T1 two output terminals respectively; T3 two output terminals are lead-in wire E ', O ' of two band crocodile clips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203893471U CN202256592U (en) | 2011-10-11 | 2011-10-11 | Multipurpose voltage-withstand tester circuit structure for stator coils of motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203893471U CN202256592U (en) | 2011-10-11 | 2011-10-11 | Multipurpose voltage-withstand tester circuit structure for stator coils of motor |
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| CN202256592U true CN202256592U (en) | 2012-05-30 |
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| CN2011203893471U Expired - Fee Related CN202256592U (en) | 2011-10-11 | 2011-10-11 | Multipurpose voltage-withstand tester circuit structure for stator coils of motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738767A (en) * | 2012-06-11 | 2012-10-17 | 辽宁省电力有限公司沈阳供电公司 | Intelligent protection device for on-site withstand voltage equipment |
| CN103543388A (en) * | 2012-07-13 | 2014-01-29 | 上海工程技术大学 | Measuring point switching device used for voltage withstanding test of low-voltage switch appliance |
| CN106353645A (en) * | 2016-08-16 | 2017-01-25 | 高邦电工（上海）有限公司 | Insulation pressure detecting device and voltage resistance test method for switch socket |
| CN106783068A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of coil subdivided transformer |
-
2011
- 2011-10-11 CN CN2011203893471U patent/CN202256592U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738767A (en) * | 2012-06-11 | 2012-10-17 | 辽宁省电力有限公司沈阳供电公司 | Intelligent protection device for on-site withstand voltage equipment |
| CN102738767B (en) * | 2012-06-11 | 2016-02-03 | 辽宁省电力有限公司沈阳供电公司 | Intelligent protection device for on-site withstand voltage equipment |
| CN103543388A (en) * | 2012-07-13 | 2014-01-29 | 上海工程技术大学 | Measuring point switching device used for voltage withstanding test of low-voltage switch appliance |
| CN106783068A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of coil subdivided transformer |
| CN106783068B (en) * | 2015-11-19 | 2019-06-18 | 中国石油化工股份有限公司 | A kind of coil subdivided transformer |
| CN106353645A (en) * | 2016-08-16 | 2017-01-25 | 高邦电工（上海）有限公司 | Insulation pressure detecting device and voltage resistance test method for switch socket |
| CN106353645B (en) * | 2016-08-16 | 2023-12-29 | 高邦电工（上海）有限公司 | Switch socket insulation voltage withstand detection device and voltage withstand test method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20141011 |
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| EXPY | Termination of patent right or utility model |