CN2890946Y - High voltage isolator for insulation detection of high voltage motor - Google Patents
High voltage isolator for insulation detection of high voltage motor Download PDFInfo
- Publication number
- CN2890946Y CN2890946Y CN 200620070856 CN200620070856U CN2890946Y CN 2890946 Y CN2890946 Y CN 2890946Y CN 200620070856 CN200620070856 CN 200620070856 CN 200620070856 U CN200620070856 U CN 200620070856U CN 2890946 Y CN2890946 Y CN 2890946Y
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- CN
- China
- Prior art keywords
- core bar
- voltage
- loop
- coil
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title description 11
- 230000003068 static effect Effects 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 239000012212 insulator Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Abstract
The utility model relates to a high-voltage insulation detecting field, in particular to a high-voltage insulation device for high-voltage motor insulating resistance detecting for providing a closer, reasonable conformation with more delicate appearance to adapt to a high-voltage motor insulation detecting high-voltage insulation device which can be installed on different high-voltage switch cabinets, which comprises a static contact, a dynamic contact and a driving device, wherein the driving device comprises a loop circuit and a core bar which comprises an insulating section and a magnetic conducting section. The upper of the core bar is an insulator, and the lower of the core bar is a magnetic conductor. The dynamic contact is equipped on the top of the core bar which will be inserted into the loop when the loop cuts off the electricity and will move upwardly to provide distance for the dynamic and the static contacts when the loop is powered on.
Description
Technical field
The utility model relates to the High-Voltage Insulation detection range, particularly a kind of high pressure spacer assembly that is used for high-voltage motor insulated resistance detection.
Background technology
According to the high-voltage electric device rules, new high-tension motor of installing and the motor of stoppage in transit more than three months all should carry out the detection of insulation resistance, to determine whether to meet the condition of putting into operation before putting into operation.And check point generally all is located at the outlet side of high-voltage switch cabinet breaker below to motor, and detecting needs the testing staff manually to carry out in switch cubicle.During detection, switch cubicle need be pulled out run location, operate very inconvenient.And,,,, much still to carry out Insulation test under the situations for preventing to insulate low having an accident because stop time is long or factor such as environment though there be not rules detections that require to insulate for warm standby at any time to be moved.In this case,, not only lose time, also have the situation appearance of return in time after the detection, make warm standby not reach the purpose of emergency use if switch cubicle is withdrawed from the hot stand-by duty position.
Application number is that the Chinese patent of 200520075271.x discloses a kind of high-tension motor insulation resistance detector switch, its technical scheme is: a kind of high-tension motor insulation resistance detector switch, comprise static contact, moving contact and drive unit, moving contact is connected on the moving contact drive unit, and moving contact is provided with draws flexible cord; Break distance between the dynamic and static contact is greater than the high-voltage safety distance.This detector switch can be connected testing circuit when detecting insulation resistance, checkout equipment and energized circuit are effectively disconnected, and realizes the automatic detection to the motor insulation resistance.
Summary of the invention
The utility model is exactly on the basis of above-mentioned patent, its static contact, moving contact and drive unit are done further design, it is compact more, reasonable to make the high-tension motor insulation detect high pressure spacer assembly structure, and external form is smaller and more exquisite, installs to adapt on different high-tension switch cabinets.
The technical solution of the utility model is, a kind of high-tension motor insulation detects the high pressure spacer assembly, comprise static contact, moving contact and drive unit, described drive unit is made up of wire loop and core bar, core bar is made up of insulation and magnetic conduction two parts, core bar the first half is an insulator, and core bar the latter half is a magnetic conductor; Moving contact is located at the upper end of core bar; During coil blackout, core bar top is inserted in the coil; During coil electricity, the stroke that core bar makes progress is the break distance of dynamic and static contact.
When the break-make of the utility model switch was achieved in that coil blackout, core bar top was inserted in the coil, and the moving contact of core bar upper end and the distance between static contact are greater than the high-voltage safety distance; During coil electricity, the latter half of core bar is inhaled in the coil, and core bar is operation upwards, and moving contact is contacted with static contact, and keeps.
As further improvement of the utility model:
Lower end at core bar is provided with back-moving spring, can have no progeny at the contact branch, and core bar is resetted as early as possible.
Magnetic pole is set on static contact, can makes the contact between dynamic/static contact tight more, reliable.
Outside at coil adds upper yoke, produces stronger magnetic field, can produce bigger suction.
Coil or the coil that adds the iron yoke are divided into multistage, and energising respectively, can make coil obtain the magnetic field of varying strength, core bar can obtain variable stroke.
The utility model utilizes coil electricity to produce magnetic attraction, drive the switch deciliter that moving contact upper and lower displacement on the core bar realizes the high pressure spacer assembly, this technical scheme and the rotation of drive unit activation lever, the prior art scheme that drives the moving contact operation is compared, structure is compact more, integral body takes up room little, and is easy for installation, adapts to cashier's office in a shop to install at dissimilar high-voltage switch gears.
As further improvement of the utility model, on drive unit, be provided with the device with high-tension motor control circuit interlocking, make this high-tension motor insulation resistance detector switch can only be closed under the motor non-operating state.In order to prevent that interlocking lost efficacy, avoid under static contact has the situation of high-tension electricity, detecting, can also be provided with one and detect discharge loop, and utilize sensor to obtain signal from discharge loop, the break-make in control detection loop is stopped the generation of mishap.
As further improvement of the utility model, can also on drive unit, increase alarming device, show the mutual alignment state of dynamic and static contact.
These improve and have all further strengthened safe reliability of the present utility model.
The utility model is connected with megohmmeter, a controlling parts, forms the high-tension motor insulation detection device, realizes the insulation of a high-tension motor is detected.，
The utility model is connected with the central control device that has a megohmmeter and centralized control circuit, can realize centralized detecting is carried out in the insulation of many high-tension motors.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1 switch conduction state
Fig. 2 is the structural representation of the utility model embodiment 1 switch off state
Fig. 3 is the structural representation of the utility model embodiment 2 switch conduction states
Fig. 4 is 1/2 o'clock structural representation for the utility model embodiment 3 switch conduction strokes
Embodiment
As shown in Figure 1 and Figure 2, a kind of high-tension motor insulation resistance detector switch, comprise static contact 1, moving contact 2 and drive unit 3, described drive unit is made up of coil 31 and core bar 32, core bar 32 is made up of insulation and magnetic conduction two parts, core bar the first half is an insulator 321, and core bar the latter half is a magnetic conductor 322; The back side of static contact 1 is provided with magnetic pole 11; Moving contact 2 is located at the upper end of core bar 3; During coil 31 outages, core bar 32 tops are inserted in the coil 31, and the break distance of dynamic and static contact is L.Below the bottom of core bar, be provided with back-moving spring 6.
Any one mutually isolating switch leading-out terminal connects in static contact 1 and the switch cubicle, and the soft lead-in wire on the moving contact 2 is connected with detector.During coil 31 energisings, the stroke that core bar 31 makes progress is the break distance L of dynamic and static contact.
This example in use, static contact 1 and high-tension motor any isolating switch leading-out terminal mutually connects, the extension line 4 of moving contact 2 with detect table and count 5 and be connected.When wire loop was switched on, coil magnetic force made core bar to top offset, the moving contact and the static contact closure of core bar upper end.At this moment, the high-voltage motor winding,, detect table meter, moving contact lead-in wire and high-voltage isolator contact and form the occlusion detection loop, as shown in Figure 1.When coil blackout, coil magnetic force discharges, and under the traction of deadweight and back-moving spring 6, core bar falls, and dynamic/static contact disconnects, as shown in Figure 2.
Be in series with the auxiliary normally closed contact of primary cut-out DL in wire loop, make and detect loop and high-voltage motor loop interlocking, guarantee the utility model in use, the high-voltage motor loop is to be in off-state.
Also be provided with the caution loop in this example, be in series with travel switch WK and attention device in the loop, travel switch is controlled by core bar, and attention device is used to show that whether core bar is at the contact open position.
As shown in Figure 3, this example is basic identical with last example.Different is: added iron yoke 7 at coil, do not had magnet 11 on the static contact.
Embodiment 3
As shown in Figure 4, this example is substantially the same manner as Example 2, and different is: two coil 31A, 31B that have iron yoke 7 are arranged, and two coils are switched on respectively.When only giving coil 31A energising, magnetic attraction is 1/2 of whole coil electricities, and the stroke of core bar is half of total travel; Give coil 31A energising in the ban, give coil 31B energising again, loop A outage during coil B energising, loop A is switched on again, and magnetic force is whole magnetic force of two coils, and the stroke of core bar is a total travel.This electromagnetic actuator device is a variable force range electromagnet, and this device also can be used on other control field.
Claims (7)
1, a kind of high-tension motor insulation detects high-voltage isolator, comprises moving contact, static contact and drive unit, it is characterized in that, drive unit comprises wire loop and core bar, core bar is made up of insulation and magnetic conduction two parts, and core bar the first half is an insulator, and core bar the latter half is a magnetic conductor; Moving contact is located at the upper end of core bar; During coil blackout, the core bar first half is inserted in the coil; During coil electricity, the stroke that core bar makes progress is the break distance of dynamic and static contact.
2, high-voltage isolator according to claim 1 is characterized in that, described static contact is provided with magnet.
3, high-voltage isolator according to claim 1 is characterized in that, the lower end of described core bar is provided with back-moving spring.
4, high-voltage isolator according to claim 1 is characterized in that, the outside of described coil is provided with the iron yoke.
5, high-voltage isolator according to claim 1 is characterized in that, is in series with the auxiliary normally closed contact of primary cut-out in wire loop.
6, high-voltage isolator according to claim 1 is characterized in that, it also is provided with the caution loop.
7, according to claim 1 or 4 described high-voltage isolators, it is characterized in that described wire loop is made up of a plurality of wire loops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070856 CN2890946Y (en) | 2006-03-31 | 2006-03-31 | High voltage isolator for insulation detection of high voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070856 CN2890946Y (en) | 2006-03-31 | 2006-03-31 | High voltage isolator for insulation detection of high voltage motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890946Y true CN2890946Y (en) | 2007-04-18 |
Family
ID=38021610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620070856 Expired - Fee Related CN2890946Y (en) | 2006-03-31 | 2006-03-31 | High voltage isolator for insulation detection of high voltage motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890946Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597039A (en) * | 2017-03-01 | 2017-04-26 | 陈春帧 | Maintenance-free high-voltage isolator |
| CN109738795A (en) * | 2018-12-09 | 2019-05-10 | 西安航天精密机电研究所 | A kind of multipolar dynamo rotor magnetic pole detection device |
| CN111273147A (en) * | 2020-03-17 | 2020-06-12 | 神华国能集团有限公司 | Insulation measuring device |
-
2006
- 2006-03-31 CN CN 200620070856 patent/CN2890946Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597039A (en) * | 2017-03-01 | 2017-04-26 | 陈春帧 | Maintenance-free high-voltage isolator |
| CN109738795A (en) * | 2018-12-09 | 2019-05-10 | 西安航天精密机电研究所 | A kind of multipolar dynamo rotor magnetic pole detection device |
| CN111273147A (en) * | 2020-03-17 | 2020-06-12 | 神华国能集团有限公司 | Insulation measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU SUPER ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG ZHENHAN Effective date: 20120203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210007 NANJING, JIANGSU PROVINCE TO: 311100 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120203 Address after: 311100 No. 7, energy and environment industrial park, 536 downwind Road, Qianjiang Economic Development Zone, Zhejiang, Hangzhou Patentee after: Hangzhou Super Electronic Technology Co., Ltd. Address before: Weigang Baixia District of Nanjing city in Jiangsu province 210007 No. 18 long hair apartment B-509 Patentee before: Zhang Zhenhan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20140331 |