CN2374861Y - Electronic detecting instrument for motor fault - Google Patents
Electronic detecting instrument for motor fault Download PDFInfo
- Publication number
- CN2374861Y CN2374861Y CN 99237156 CN99237156U CN2374861Y CN 2374861 Y CN2374861 Y CN 2374861Y CN 99237156 CN99237156 CN 99237156 CN 99237156 U CN99237156 U CN 99237156U CN 2374861 Y CN2374861 Y CN 2374861Y
- Authority
- CN
- China
- Prior art keywords
- electron
- utility
- electron excitation
- pumping signal
- model
- 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
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The utility model relates to an electronic detector for motor faults, which is used for detecting the turn-to-turn short circuit of motor coils and cage rotor broken strips. The utility model comprises a DC power supply, an electronic excitation signal emission probe used for generating excitation signals, an electronic excitation signal receiving probe used for receiving the excitation signals and a display. Because the utility model adopts electronic signals instead of excitation signals taken as civil frequency by the ordinary short-circuit detector in 50 hertz, the utility model has the advantages of high sensitivity, strong versatility, small size and convenient operation compared with the ordinary short-circuit detector. Because the utility model adopts the DC power supply, the utility model has the characteristics of high safety, etc.
Description
The utility model relates to a kind of electrical fault detection instrument.
Existing various short circuit detector, the precision that has is not high, can not survey the slightest circle short circuit of motor coil; The versatility that has is poor, and a kind of probe of model only is suitable for a kind of motor of model, and bulky, cost is high; Again owing to will so use dangerous, inconvenient operation, therefore be difficult to promote with 220 AC power.Though what have has a certain precision, but complex structure, bulky, cost an arm and a leg, also be difficult to popularize.
The purpose of this utility model be to provide that a kind of volume is little, safe in utilization, easy to operate, highly versatile, highly sensitive electrical fault electron detection instrument.
The purpose of this utility model is achieved in that a kind of electrical fault electron detection instrument, it comprises housing and detection circuit, its primary structure is: detection circuit comprises direct supply 1, is connected and produces the Electron Excitation signal transmitting probe of pumping signal with direct supply 1, receives the Electron Excitation probe receiver of pumping signal, and display is connected with the Electron Excitation probe receiver; Electron Excitation signal generator 3 is in parallel with pumping signal transmitting coil 4.Electron Excitation signal transmitting probe comprises the Electron Excitation signal generator 3 that is connected with power supply 1, pumping signal emission iron core 5, and pumping signal transmitting coil 4 is launched iron core 5 with pumping signal respectively, and Electron Excitation signal generator 3 connects; The Electron Excitation probe receiver comprises the rectifier 8 that is connected with display 6, pumping signal receiving coil 9 respectively with rectifier 8, pumping signal receives iron core 10 and connects.Direct supply 1 is in parallel with Electron Excitation signal generator 3, is connected in series plugs and sockets pair 2 therebetween.Direct supply is 1.5-3V.Display adopts galvanometer.Display 6 is in parallel with rectifier 8, is connected in series plugs and sockets pair 7 therebetween.
Because the detection circuit that the utility model adopts direct supply, the Electron Excitation signal transmitting probe of generation pumping signal, the Electron Excitation probe receiver that receives pumping signal, display to form.Its highly versatile, a cover probe can detect the motor of all models between the 1KW-150KW; It highly sensitive can demonstrate the slightest circle short circuit of motor coil; Because the employed power supply of the utility model is the dry cell of 1.5V-3V, thus safe in utilization, again because of this instrument volume is little, so easy to operate.The utility model also has long service life, price to hang down advantages such as double relatively simultaneously.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1,1.5V-3V dry cell, 2, plugs and sockets pair, 3, the Electron Excitation signal generator, 4, Electron Excitation signal transmitting coil, 5, transmitting probe open core, 6,50 microamperes of retainings of MF500 type, 7, the plugs and sockets pair, 8, rectifier, 9, pumping signal receiving transducer coil, 10, the receiving transducer open core.
A kind of electrical fault electron detection instrument, comprise housing and detection circuit, its detection circuit comprises: direct supply 1, be connected and produce with direct supply 1 pumping signal Electron Excitation signal transmitting probe, receive the Electron Excitation probe receiver of pumping signal, display is connected with the Electron Excitation probe receiver.
Signal emission probing head is made up of power supply 1, plugs and sockets pair 2, Electron Excitation signal generator 3, Electron Excitation signal transmitting coil 4 transmitting probe open cores 5; The Electron Excitation probe receiver is by on the MF500 type multimeter 50 microamperes retainings 6, plugs and sockets pair 7, rectifier 8, Electron Excitation signal receiving coil 9, and receiving transducer open core 10 forms.
Electron Excitation signal transmitting probe comprises the Electron Excitation signal projector that is connected with power supply 1, pumping signal emission iron core 5, and pumping signal transmitting coil 4 is launched iron core 5 with pumping signal respectively, and Electron Excitation signal generator 3 connects.Direct supply 1 is in parallel with Electron Excitation signal generator 3, is connected in series plugs and sockets pair 2 therebetween.Electron Excitation signal generator 3 is in parallel with pumping signal transmitting coil 4.Direct supply is 1.5-3V.Display adopts galvanometer.The Electron Excitation probe receiver comprises the rectifier 8 that is connected with display 6, pumping signal receiving coil 9 respectively with rectifier 8, pumping signal receives iron core 10 and connects.Display 6 is in parallel with rectifier 8, is connected in series plugs and sockets pair 7 therebetween.
The utility model is because adopt the electronic signal of certain cycle to encourage, make display with microampere meter, so highly sensitive than traditional short circuit investigation, because traditional short circuit detector encourages with 50 hertz 220 civil power, make display (acoustical generator) so the not high survey of sensitivity does not go out a circle short circuit with small iron plate.So because highly sensitive of the present utility model applied widely, the fault of institute's organic type is brought great convenience to operation between the detectable 1KW-150KW of a cover instrument.Advantages such as safe in utilization, that the life-span is long are more arranged.
During use, bipod with the transmitting probe open core, stride on the notch of motor slot one end that is placed on coil, the bipod of receiving transducer open core is striden (must be same groove) on the notch that is placed on the motor slot other end, if coil has a circle or the above short circuit of a circle, sensitive demonstration is then arranged on microampere meter, if no short circuit then microampere meter do not have demonstration.If the disconnected bar of cage rotor does not then have demonstration.If each bar of imperial rotor all has the approaching demonstration of significant numerical values recited, show that then this rotor quality is good.If what each bar of cage rotor had has a demonstration, the nothing that has shows, illustrates that then this rotor is not handy or scraps.
Claims (5)
1, a kind of electrical fault electron detection instrument, it comprises housing and detection circuit, it is characterized in that detection circuit comprises: direct supply (1), the Electron Excitation signal transmitting probe that is connected and produces pumping signal with direct supply (1), receive the Electron Excitation probe receiver of pumping signal, display is connected with the Electron Excitation probe receiver; Electron Excitation signal transmitting probe comprises the Electron Excitation signal generator that is connected with direct supply (1), pumping signal emission iron core (5), and pumping signal transmitting coil (4) is launched iron core (5) with pumping signal respectively, and Electron Excitation signal generator (3) connects; Electron Excitation signal generator (3) is in parallel with pumping signal transmitting coil (4); The Electron Excitation probe receiver comprises the rectifier (8) that is connected with display (6), pumping signal receiving coil (9) respectively with rectifier (8), pumping signal receives iron core (10) and connects.
2, electrical fault electron detection instrument according to claim 1 and 2, it is characterized in that: direct supply (1) is in parallel with Electron Excitation signal generator (3), is connected in series plugs and sockets pair (2) therebetween.
3, electrical fault electron detection instrument according to claim 1, it is characterized in that: direct supply is 1.5-3V.
4, electrical fault electron detection instrument according to claim 1 is characterized in that: display adopts galvanometer.
5, according to claim 1 or 4 described electrical fault electron detection instrument, it is characterized in that: display (6) is in parallel with rectifier (8), is connected in series plugs and sockets pair (7) therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237156 CN2374861Y (en) | 1999-02-02 | 1999-02-02 | Electronic detecting instrument for motor fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237156 CN2374861Y (en) | 1999-02-02 | 1999-02-02 | Electronic detecting instrument for motor fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2374861Y true CN2374861Y (en) | 2000-04-19 |
Family
ID=34024863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99237156 Expired - Fee Related CN2374861Y (en) | 1999-02-02 | 1999-02-02 | Electronic detecting instrument for motor fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2374861Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608528A (en) * | 2011-12-01 | 2012-07-25 | 华南理工大学 | Defect detection method and device for motors |
| CN106370966A (en) * | 2016-09-05 | 2017-02-01 | 山东电力设备有限公司 | Device for detecting reactor core short circuit ring |
-
1999
- 1999-02-02 CN CN 99237156 patent/CN2374861Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608528A (en) * | 2011-12-01 | 2012-07-25 | 华南理工大学 | Defect detection method and device for motors |
| CN106370966A (en) * | 2016-09-05 | 2017-02-01 | 山东电力设备有限公司 | Device for detecting reactor core short circuit ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102072999B (en) | Connection testing device of electric energy metering device and using method thereof | |
| CN205809178U (en) | Instrument for measuring DC resistance | |
| CN2374861Y (en) | Electronic detecting instrument for motor fault | |
| CN109901055A (en) | A kind of OBD equipment performance test macro | |
| CN205786821U (en) | A kind of residual voltage tester | |
| CN205620534U (en) | Ammeter investigation appearance of visiting one house after another | |
| CN217007653U (en) | Small-size current transformer tester | |
| CN108802467B (en) | Iron core coil type current transformer with high detection precision and electric leakage detection device | |
| CN201837694U (en) | Wiring tester for electric energy metering device | |
| CN201045611Y (en) | Portable digital eddy-current conductivity apparatus for non-ferromagnetism metal | |
| CN207396708U (en) | 110kV polarity testing device of current transformer | |
| CN202548269U (en) | Polarity discriminating gear for electromagnetic induction coil | |
| CN211374595U (en) | Self-sensing piezoelectric patch circuit | |
| CN201035109Y (en) | Investigation apparatus of winding roll | |
| CN108333467A (en) | A kind of SCM Based substation's mutual inductor polarity intelligent detection device | |
| CN2289249Y (en) | Communication cable failure detector | |
| CN114280525A (en) | Portable current transformer polarity and transformation ratio integrated tester | |
| CN209878670U (en) | Remote rotary eddy current nondestructive flaw detection system | |
| CN201666919U (en) | High-altitude portable insulator detector | |
| CN202383306U (en) | Inductance type metal detector | |
| CN201355528Y (en) | Multimeter demonstrator | |
| CN206489256U (en) | Hall effect digital switch test device | |
| CN205898893U (en) | Rubidium atomic frequency standard test system and reference signal generating device thereof | |
| CN219573258U (en) | Handheld vibration meter suitable for magnetoelectric vibration sensor | |
| CN217181194U (en) | Portable mutual inductor detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |