FR2292360A2 - Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system - Google Patents

Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system

Info

Publication number
FR2292360A2
FR2292360A2 FR7438286A FR7438286A FR2292360A2 FR 2292360 A2 FR2292360 A2 FR 2292360A2 FR 7438286 A FR7438286 A FR 7438286A FR 7438286 A FR7438286 A FR 7438286A FR 2292360 A2 FR2292360 A2 FR 2292360A2
Authority
FR
France
Prior art keywords
insulation
rectifying system
electrical equipment
provides double
user protection
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
Application number
FR7438286A
Other languages
French (fr)
Other versions
FR2292360B2 (en
Inventor
Daniel Fleuret
Paul Thevenet
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Priority to FR7438286A priority Critical patent/FR2292360A2/en
Priority to NL7512272A priority patent/NL7512272A/en
Priority to IT28464/75A priority patent/IT1043503B/en
Priority to ES441955A priority patent/ES441955A1/en
Priority to FI752950A priority patent/FI60328C/en
Priority to GB43452/75A priority patent/GB1520478A/en
Priority to CH1375075A priority patent/CH604399A5/xx
Priority to SE7511889A priority patent/SE412146B/en
Priority to DK477275A priority patent/DK477275A/en
Priority to YU02685/75A priority patent/YU39169B/en
Priority to LU73636A priority patent/LU73636A1/xx
Priority to NO753565A priority patent/NO142326C/en
Priority to IE2309/75A priority patent/IE41815B1/en
Priority to DE19752547770 priority patent/DE2547770A1/en
Publication of FR2292360A2 publication Critical patent/FR2292360A2/en
Application granted granted Critical
Publication of FR2292360B2 publication Critical patent/FR2292360B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Abstract

The electrical equipment insulation is designed to provide protection for the user against electric shock and is particularly applicable to motor driven appliances such as washing machines. The design is for apparatus fed from an AC supply via a current rectifying system and provides double insulation, the rectifying system itself having single insulation. The two insulated blocks are interconnected such that if a current leak to earth from the DC circuit to earth occurs the resulting current level through the interconnecting circuit is limited to some given value. The interconnecting circuitry may be purely resistive having a value greater than 10 Kohms. or capacitive, in the range 10,000 to 100,000 pf.
FR7438286A 1974-10-24 1974-11-21 Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system Granted FR2292360A2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
FR7438286A FR2292360A2 (en) 1974-11-21 1974-11-21 Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system
NL7512272A NL7512272A (en) 1974-10-24 1975-10-20 ELECTRICAL APPLIANCE WITH IMPROVED INSULATION.
IT28464/75A IT1043503B (en) 1974-10-24 1975-10-21 IMPROVED INSULATION ELECTRICAL APPLIANCE
ES441955A ES441955A1 (en) 1974-10-24 1975-10-21 Electrical apparatus with isolation
GB43452/75A GB1520478A (en) 1974-10-24 1975-10-22 Electrical apparatus with isolation
FI752950A FI60328C (en) 1974-10-24 1975-10-22 ELEKTRISK ANORDNING MED FOERBAETTRAD ISOLATION
CH1375075A CH604399A5 (en) 1974-10-24 1975-10-23
SE7511889A SE412146B (en) 1974-10-24 1975-10-23 OF AN AC POWER SUPPLY ELECTRIC APPLIANCE
DK477275A DK477275A (en) 1974-10-24 1975-10-23 ELECTRICAL APPLIANCE WITH INSULATED CIRCUITS FOR DC AND AC
YU02685/75A YU39169B (en) 1974-10-24 1975-10-23 Electrical apparatus with an improved insulation
LU73636A LU73636A1 (en) 1974-10-24 1975-10-23
NO753565A NO142326C (en) 1974-10-24 1975-10-23 ELECTRICAL APPLIANCES EQUIPPED WITH MEASURES THAT LIMIT LAKE POWER
IE2309/75A IE41815B1 (en) 1974-10-24 1975-10-23 Electrical apparatus with improved isolation
DE19752547770 DE2547770A1 (en) 1974-10-24 1975-10-24 ELECTRICAL EQUIPMENT POWERED FROM AN AC MAINS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438286A FR2292360A2 (en) 1974-11-21 1974-11-21 Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system

Publications (2)

Publication Number Publication Date
FR2292360A2 true FR2292360A2 (en) 1976-06-18
FR2292360B2 FR2292360B2 (en) 1977-05-20

Family

ID=9145132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438286A Granted FR2292360A2 (en) 1974-10-24 1974-11-21 Electrical equipment insulation and user protection - provides double insulation of D.C. circuits fed from a rectifying system

Country Status (1)

Country Link
FR (1) FR2292360A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763534A1 (en) * 1968-06-20 1971-11-11 Falk Schwigat Electrical control circuit for mining systems and the like
US3651391A (en) * 1969-09-26 1972-03-21 Black & Decker Mfg Co Electronic switch arrangements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763534A1 (en) * 1968-06-20 1971-11-11 Falk Schwigat Electrical control circuit for mining systems and the like
US3651391A (en) * 1969-09-26 1972-03-21 Black & Decker Mfg Co Electronic switch arrangements

Also Published As

Publication number Publication date
FR2292360B2 (en) 1977-05-20

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