JPS54106804A - Method for detecting abnormality in dc machine - Google Patents

Method for detecting abnormality in dc machine

Info

Publication number
JPS54106804A
JPS54106804A JP1448578A JP1448578A JPS54106804A JP S54106804 A JPS54106804 A JP S54106804A JP 1448578 A JP1448578 A JP 1448578A JP 1448578 A JP1448578 A JP 1448578A JP S54106804 A JPS54106804 A JP S54106804A
Authority
JP
Japan
Prior art keywords
brush
armature coil
abnormality
voltage
auxiliary brush
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.)
Pending
Application number
JP1448578A
Other languages
Japanese (ja)
Inventor
Yuji Nakanishi
Katsumi Taira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1448578A priority Critical patent/JPS54106804A/en
Publication of JPS54106804A publication Critical patent/JPS54106804A/en
Pending legal-status Critical Current

Links

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  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE: To enable an abnormality in an armature coil to be easily detected, by providing an auxiliary brush with a width narrower than that of a commutator segment and measuring the voltage between the auxiliary brush and a main brush conducting a load current.
CONSTITUTION: Provided on a commutator portion 1 are a main brush and an auxiliary brush with a width narrower than that of a commutator segment. A voltage measuring device 4 is provided between the main brush and the auxiliary brush. A non-contacting displacement meter 15 for detecting armature coil position is disposed facing the armature portion 1. Thus, when an abnormality occurs in the armature coil, abnormal waveforms 7, 8 etc. will appear in the voltage waveform provided by the voltage measuring device 4, so that the abnormality in the armature coil can easily be detected by measuring them.
COPYRIGHT: (C)1979,JPO&Japio
JP1448578A 1978-02-10 1978-02-10 Method for detecting abnormality in dc machine Pending JPS54106804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1448578A JPS54106804A (en) 1978-02-10 1978-02-10 Method for detecting abnormality in dc machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1448578A JPS54106804A (en) 1978-02-10 1978-02-10 Method for detecting abnormality in dc machine

Publications (1)

Publication Number Publication Date
JPS54106804A true JPS54106804A (en) 1979-08-22

Family

ID=11862347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1448578A Pending JPS54106804A (en) 1978-02-10 1978-02-10 Method for detecting abnormality in dc machine

Country Status (1)

Country Link
JP (1) JPS54106804A (en)

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