JPS5486701A - Method of testing rotolouver - Google Patents
Method of testing rotolouverInfo
- Publication number
- JPS5486701A JPS5486701A JP15452877A JP15452877A JPS5486701A JP S5486701 A JPS5486701 A JP S5486701A JP 15452877 A JP15452877 A JP 15452877A JP 15452877 A JP15452877 A JP 15452877A JP S5486701 A JPS5486701 A JP S5486701A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- contact resistance
- rotolouver
- probes
- core
- 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.)
- Granted
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Induction Machinery (AREA)
Abstract
PURPOSE: To enable valuation of contact resistance between a rotolouver and an iron core by making a magnetic core contact with the surface of a rotor iron core, applying an AC magnetic flux of different phase from this magentic core to the iron core so that the sum of all the magnetic fluxes becomes zero, and measuring the exciting current at this time.
CONSTITUTION: Probes 4, 5 are made contact on an iron core 1 having a rotolouver 2. Then, AC currents of different phase are flown through the probes 4 and 5, respectively so that the sum of all the magnetic fluxes entering into the tooth 1A of the iron core 1 becomes zero. If the contact resistance between the rotolouver 2 and the core 1 is small, shorting circuits are formed around the respective probes 4, 5 to thus increase the exciting currents of the probes and their losses. Accordingly, the contact resistance between the rotolouver and the iron core can be evaluated by measuring the currents of the probes. In case of measuring the losses, if the contact resistance Zc is low, large current flows through the contact resistance Zc to largely fluctuate a wattmeter W. Thus, the contact resistance can be evaluated without damage of the rotor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15452877A JPS5486701A (en) | 1977-12-23 | 1977-12-23 | Method of testing rotolouver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15452877A JPS5486701A (en) | 1977-12-23 | 1977-12-23 | Method of testing rotolouver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5486701A true JPS5486701A (en) | 1979-07-10 |
| JPS6238947B2 JPS6238947B2 (en) | 1987-08-20 |
Family
ID=15586219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15452877A Granted JPS5486701A (en) | 1977-12-23 | 1977-12-23 | Method of testing rotolouver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5486701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018173211A1 (en) * | 2017-03-23 | 2018-09-27 | 三菱電機株式会社 | Measurement device, measurement method, and motor manufacturing method |
-
1977
- 1977-12-23 JP JP15452877A patent/JPS5486701A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018173211A1 (en) * | 2017-03-23 | 2018-09-27 | 三菱電機株式会社 | Measurement device, measurement method, and motor manufacturing method |
| JPWO2018173211A1 (en) * | 2017-03-23 | 2019-11-07 | 三菱電機株式会社 | Measuring device, measuring method, and motor manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6238947B2 (en) | 1987-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5486701A (en) | Method of testing rotolouver | |
| Radley et al. | Apparatus for experimental simulation of magnetic flux and power loss distribution in a turbogenerator stator core | |
| JPS5524640A (en) | Measurement of impedance and load loss of there-winding transformer | |
| JPS54133367A (en) | Eccentricity inspection device of steel cored cables | |
| JPS5578514A (en) | Zero-phase current transformer using hole element | |
| JPS5537870A (en) | Stator winding | |
| JPS5414779A (en) | Power factor measuring method of 3-phase circuits | |
| SU100363A2 (en) | Induction Energy Loss Counter in a Three-Phase Step-down Power Transformer | |
| SU1221617A1 (en) | Apparatus for determining resistance of zero sequence of transformer with saturated core | |
| SU105618A1 (en) | AC electricity meter | |
| JPS6115311A (en) | Reactor provided with function of current detection | |
| JPS5292502A (en) | Measuring method for electromagnetic conversion efficiency of magnetic head | |
| SU901956A1 (en) | Device for measuring losses in magnetic core | |
| JPS54107764A (en) | Thickness measuring method | |
| Chiricozzi et al. | Parameters and losses of hydrogenerator damping systems | |
| US2544696A (en) | Alternating current measuring device and method | |
| SU456335A1 (en) | Zero sequence current transformer | |
| JPS63266361A (en) | Movable coil type ammeter | |
| JPS51116928A (en) | Static induction electric instrument winding | |
| Quichaud | Modelling of iron-free machines | |
| JPS55155222A (en) | Stress measuring apparatus utilizing iron loss | |
| JPS5399500A (en) | Method of evaluating insulation property of iron oxide coating film | |
| JPS5657967A (en) | Winding insulation inspecting device | |
| JPS51139365A (en) | Device of measuring current flowing in a conductor | |
| JPS5376077A (en) | Voltage applied current measuring circuit |