GB1493107A - Means for monitoring current flow conditions in rotating rectifier systems of brushless machines - Google Patents

Means for monitoring current flow conditions in rotating rectifier systems of brushless machines

Info

Publication number
GB1493107A
GB1493107A GB54178/73A GB5417873A GB1493107A GB 1493107 A GB1493107 A GB 1493107A GB 54178/73 A GB54178/73 A GB 54178/73A GB 5417873 A GB5417873 A GB 5417873A GB 1493107 A GB1493107 A GB 1493107A
Authority
GB
United Kingdom
Prior art keywords
output
oscillator
capacitor
path
current
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
Application number
GB54178/73A
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.)
Reyrolle Parsons Ltd
Original Assignee
Reyrolle Parsons Ltd
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 Reyrolle Parsons Ltd filed Critical Reyrolle Parsons Ltd
Priority to GB54178/73A priority Critical patent/GB1493107A/en
Priority to AU75640/74A priority patent/AU494396B2/en
Priority to CH1558774A priority patent/CH579845A5/xx
Priority to ZA00747482A priority patent/ZA747482B/en
Priority to CA214,412A priority patent/CA1010957A/en
Publication of GB1493107A publication Critical patent/GB1493107A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/042—Rectifiers associated with rotating parts, e.g. rotor cores or rotary shafts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/15—Indicating the presence of current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1493107 Measuring current; testing dynamoelectric machines REYROLLE PARSONS Ltd 11 Nov 1974 [22 Nov 1973] 54178/73 Heading G1U The current in each parallel path of a rotating rectifier associated with a brushless electrical machine includes a separate transformer coupling each path to a storage capacitor. The transformer 6 output of bi-polar pulses is rectified 7 and applied to a storage capacitor 8 which thus retains a voltage as long as current flows in the rectifier 3 path. The capacitor output energizes an oscillator 12 whose radiations are picked up by a stationary aerial (31) Fig. 5 (not shown). As each of the n rectifiers has its own oscillator, a receiver connected to the aerial (31) should receive n pulses/ machine revolution. The actual number received is compared (34) to a pulse oscillator (33) output and an alarm (35) actuated if the number is incorrect. The comparator (34) is reset every revolution by a counter which itself is energized by an inductive pick-up detecting the passage of a notch on the machine rotor. The number of components mounted on the rotor may be reduced by multi-plexing any part of the system after the capacitor and transmitting coded signals over a radio transmitter along with other parameters e.g field winding temperature or voltage. At low current values a detector (39) may suppress operation of the output alarm.
GB54178/73A 1973-11-22 1973-11-22 Means for monitoring current flow conditions in rotating rectifier systems of brushless machines Expired GB1493107A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB54178/73A GB1493107A (en) 1973-11-22 1973-11-22 Means for monitoring current flow conditions in rotating rectifier systems of brushless machines
AU75640/74A AU494396B2 (en) 1973-11-22 1974-11-22 Detecting and indicating means for current flow supervision in multiparallel path rotating rectifier systems
CH1558774A CH579845A5 (en) 1973-11-22 1974-11-22
ZA00747482A ZA747482B (en) 1973-11-22 1974-11-22 Rotatable rectifier systems
CA214,412A CA1010957A (en) 1973-11-22 1974-11-22 Measurement of current flow in rotatable rectifier systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54178/73A GB1493107A (en) 1973-11-22 1973-11-22 Means for monitoring current flow conditions in rotating rectifier systems of brushless machines

Publications (1)

Publication Number Publication Date
GB1493107A true GB1493107A (en) 1977-11-23

Family

ID=10470178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54178/73A Expired GB1493107A (en) 1973-11-22 1973-11-22 Means for monitoring current flow conditions in rotating rectifier systems of brushless machines

Country Status (4)

Country Link
CA (1) CA1010957A (en)
CH (1) CH579845A5 (en)
GB (1) GB1493107A (en)
ZA (1) ZA747482B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184851A (en) * 1985-12-10 1987-07-01 Sgs Microelettronica Spa Alternator phase signal detecting device
EP1225452A2 (en) * 2001-01-19 2002-07-24 Robert Bosch Gmbh Current measuring procedure for half-bridges
GB2460515A (en) * 2008-05-30 2009-12-09 Gen Electric Detecting an exciter fault in a brushless generator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114077A (en) * 1977-04-01 1978-09-12 Westinghouse Electric Corp. Rotor overtemperature protection for electric motors
DE102013200637A1 (en) * 2013-01-17 2014-07-31 Robert Bosch Gmbh A method of detecting an electrical fault in a generator assembly and means for implementing it

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184851A (en) * 1985-12-10 1987-07-01 Sgs Microelettronica Spa Alternator phase signal detecting device
GB2184851B (en) * 1985-12-10 1989-10-25 Sgs Microelettronica Spa Phase signal detecting device
EP1225452A2 (en) * 2001-01-19 2002-07-24 Robert Bosch Gmbh Current measuring procedure for half-bridges
EP1225452A3 (en) * 2001-01-19 2004-01-28 Robert Bosch Gmbh Current measuring procedure for half-bridges
GB2460515A (en) * 2008-05-30 2009-12-09 Gen Electric Detecting an exciter fault in a brushless generator

Also Published As

Publication number Publication date
ZA747482B (en) 1975-11-26
AU7564074A (en) 1976-05-27
CH579845A5 (en) 1976-09-15
CA1010957A (en) 1977-05-24

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee