CN205992017U - A kind of generator shaft voltage measuring apparatus - Google Patents
A kind of generator shaft voltage measuring apparatus Download PDFInfo
- Publication number
- CN205992017U CN205992017U CN201620971673.6U CN201620971673U CN205992017U CN 205992017 U CN205992017 U CN 205992017U CN 201620971673 U CN201620971673 U CN 201620971673U CN 205992017 U CN205992017 U CN 205992017U
- Authority
- CN
- China
- Prior art keywords
- insulating bar
- band handle
- measuring apparatus
- shaft voltage
- voltage measuring
- 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
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Abstract
The utility model proposes a kind of generator shaft voltage measuring apparatus, including band handle insulating bar two, two pieces of graphite carbon brush, two, wire, circuit tester or voltmeter one, carbon brush connect band handle insulating bar, band handle insulating bar connects circuit tester by wire.Beneficial effect：Method is simple, has very strong portability, can greatly shorten test period, reduces the danger of electromotor survey crew in the case of running up, and safety coefficient is high, also provides the judgement of science, enterprise benefit for equipment safety assessment simultaneously.
Description
Technical field
This utility model is a kind of voltage measurement specific purpose tool technical field, is related to measurement axis electricity after power plants generating electricity machine overhauling
Pressure device.
Background technology
Generating set creates voltage because Equipment causes on generator unit shaft, if in installation or operation, do not had
Have and take enough measures, when shaft voltage be enough to puncture the oil film between axle and bearing, just discharge, lubrication can be made
Oil gradually degrades, and severe patient can make bearing shell burn out, and is caused the accident by forced-stopping machine.So in installation and operation, measurement checks
Voltage between the axle of generating set and bearing is very necessary.According to a maintenance directive/guide overhaul in 4 years, in service work, axle
Time needed for the experiment with measuring of voltage is longer, and electromotor measures in the case of running up, to survey crew
Dangerous greatly.How to shorten test period？How to be just avoided that and carry out in the case of running up in electromotor
Measurement, can reduce the personal safety of survey crew？The problem being intended to solve.
Utility model content
This utility model is to solve above technical problem, proposes a kind of generator shaft voltage measuring apparatus.
The technical solution of the utility model is：A kind of generator shaft voltage measuring apparatus, including band handle insulating bar two,
Two pieces of graphite carbon brush, two, wire, circuit tester or voltmeter one, carbon brush connect band handle insulating bar, band handle insulating bar leads to
Cross wire and connect circuit tester or voltmeter.
The described band long 100cm of handle insulating bar.
Described wire is 1.5mm single flexible circuit conductor.
The beneficial effects of the utility model are：Method is simple, has very strong portability, when can greatly shorten test
Between, reduce the danger of electromotor survey crew in the case of running up, safety coefficient is high, also comments for equipment safety simultaneously
Estimate the judgement of the science of providing, enterprise benefit.
Brief description
Fig. 1 is axle system schematic diagram；
Fig. 2 is generator's motor shaft both end voltage instrumentation plan；
Fig. 3 is motor big axle voltage-to-ground instrumentation plan；
In figure, 1- encourages side axle watt, 2- oil film, 3- bearing shell insulation against ground, 4- generator's motor shaft, 5- vapour side axle watt, 6- graphite
Carbon brush, 7- handle insulating bar, 8- wire, 9- circuit tester.
Specific embodiment
Components and parts：Insulating bar（Band handle）：100cm two
Carbon brush：Two pieces of graphite carbon brush
Wire：1.5mm single flexible circuit conductor（BV1.5）Two
Circuit tester：Fluke（FLUKE）1587 one piece of circuit testers, survey 0 and arrive 50V alternating voltage.
Part connects：Carbon brush 6 connect band handle insulating bar 7, band handle insulating bar 7 connects circuit tester 9 by wire 8.
Generator shaft voltage measuring apparatus using method：
Measurement generator's motor shaft voltage：Gather current potential from generator's motor shaft vapour side with encouraging side simultaneously.Note generator amature
Direction of rotation, lines up, both hands firmly grasp carry handle insulating bar 7 to rotor rotation rightabout in somewhat apply pressure flip turn
Axle side, about 1 second time of contact is so that it may read shaft voltage from measurement apparatus.
Measurement generator's motor shaft voltage-to-ground：Gather above earth potential in generator's motor shaft vapour side with encouraging side.Note electromotor
Rotor direction of rotation, lines up, and it is light that both hands promptly carry handle insulating bar 7 somewhat to apply pressure into rotor rotation rightabout
Touch rotating shaft side, about 1 second time of contact is so that it may read shaft voltage from measurement apparatus.
This device has very strong portability, by promoting the use of of generator shaft voltage measuring apparatus, can significantly contract
Short test period, also solves the danger of electromotor survey crew in the case of running up simultaneously, also pacifies for equipment simultaneously
Full assessment provides the judgement of science, is that Condition Based Maintenance Putting in Practice has laid solid foundation.
Claims (3)
1. a kind of generator shaft voltage measuring apparatus, is characterized in that including band handle insulating bar two, two pieces of graphite carbon brush, wire
Two, circuit tester or voltmeter one, carbon brush connect band handle insulating bar, band handle insulating bar pass through wire connection circuit tester or
Voltmeter.
2. a kind of generator shaft voltage measuring apparatus according to claim 1, is characterized in that described band handle insulating bar is long
100cm.
3. a kind of generator shaft voltage measuring apparatus according to claim 1, is characterized in that described wire is that 1.5mm is mono-
Core flexible circuit conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971673.6U CN205992017U (en) | 2016-08-29 | 2016-08-29 | A kind of generator shaft voltage measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971673.6U CN205992017U (en) | 2016-08-29 | 2016-08-29 | A kind of generator shaft voltage measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992017U true CN205992017U (en) | 2017-03-01 |
Family
ID=58105389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620971673.6U Expired - Fee Related CN205992017U (en) | 2016-08-29 | 2016-08-29 | A kind of generator shaft voltage measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983393A (en) * | 2020-07-03 | 2020-11-24 | 中广核核电运营有限公司 | Method and device for measuring insulation of generator sealing tile by voltage time method |
| CN112327036A (en) * | 2020-11-02 | 2021-02-05 | 山东中实易通集团有限公司 | Shaft voltage tester and method |
| CN113567730A (en) * | 2021-08-09 | 2021-10-29 | 华能新能源股份有限公司陕西分公司 | Generator shaft voltage measuring method based on rotating speed signal |
-
2016
- 2016-08-29 CN CN201620971673.6U patent/CN205992017U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983393A (en) * | 2020-07-03 | 2020-11-24 | 中广核核电运营有限公司 | Method and device for measuring insulation of generator sealing tile by voltage time method |
| CN112327036A (en) * | 2020-11-02 | 2021-02-05 | 山东中实易通集团有限公司 | Shaft voltage tester and method |
| CN113567730A (en) * | 2021-08-09 | 2021-10-29 | 华能新能源股份有限公司陕西分公司 | Generator shaft voltage measuring method based on rotating speed signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20170829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |