PT65002A - SECURITY DEVICE FOR DETECTING THE ISOLATION FAULTS OF AN ELECTRICAL APPARATUS - Google Patents

SECURITY DEVICE FOR DETECTING THE ISOLATION FAULTS OF AN ELECTRICAL APPARATUS

Info

Publication number
PT65002A
PT65002A PT65002A PT6500276A PT65002A PT 65002 A PT65002 A PT 65002A PT 65002 A PT65002 A PT 65002A PT 6500276 A PT6500276 A PT 6500276A PT 65002 A PT65002 A PT 65002A
Authority
PT
Portugal
Prior art keywords
detecting
security device
electrical apparatus
isolation faults
faults
Prior art date
Application number
PT65002A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT65002B (en
Original Assignee
Parrier A
Parrier J
Parrier H
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 Parrier A, Parrier J, Parrier H filed Critical Parrier A
Publication of PT65002A publication Critical patent/PT65002A/en
Publication of PT65002B publication Critical patent/PT65002B/en

Links

Classifications

    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/162—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 fault current to earth, frame or mass for ac systems
    • H02H3/165—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 fault current to earth, frame or mass for ac systems for three-phase systems
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • H02H3/14—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 occurrence of voltage on parts normally at earth potential

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
PT65002A 1975-12-12 1976-04-12 SECURITY DEVICE FOR DETECTING THE ISOLATION FAULTS OF AN ELECTRICAL APPARATUS PT65002B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7539397A FR2335079A2 (en) 1975-12-12 1975-12-12 Short-circuit monitor for machines - has resistor switching transistor which controls power switch upon short-circuit

Publications (2)

Publication Number Publication Date
PT65002A true PT65002A (en) 1976-05-01
PT65002B PT65002B (en) 1977-09-08

Family

ID=9164039

Family Applications (1)

Application Number Title Priority Date Filing Date
PT65002A PT65002B (en) 1975-12-12 1976-04-12 SECURITY DEVICE FOR DETECTING THE ISOLATION FAULTS OF AN ELECTRICAL APPARATUS

Country Status (12)

Country Link
JP (2) JPS5272437A (en)
CS (1) CS223817B2 (en)
DD (1) DD124135A5 (en)
FI (1) FI760870A (en)
FR (1) FR2335079A2 (en)
GR (1) GR59275B (en)
LU (1) LU74658A1 (en)
NO (1) NO761103L (en)
PL (1) PL110107B1 (en)
PT (1) PT65002B (en)
RO (1) RO72411A (en)
YU (1) YU277976A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447627A1 (en) * 1979-01-25 1980-08-22 Sfec Protection circuit to detect insulation failure in rotating machine - produces current proportional to voltage between neutral and earth
FR2468130A1 (en) * 1979-10-23 1981-04-30 Sfec Mains isolation fault detector - has rectifier bridge and circuit activating relay connected to light emitting diode when leakage exceeds threshold
JPH03264665A (en) * 1990-03-13 1991-11-25 Tokyo Electron Ltd Plasma treating device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4423639Y1 (en) * 1966-10-28 1969-10-06

Also Published As

Publication number Publication date
PL110107B1 (en) 1980-07-31
JPS573333U (en) 1982-01-08
FR2335079A2 (en) 1977-07-08
YU277976A (en) 1982-06-30
FI760870A (en) 1977-06-13
RO72411A (en) 1981-09-24
LU74658A1 (en) 1976-09-01
NO761103L (en) 1977-06-14
JPS5272437A (en) 1977-06-16
GR59275B (en) 1977-12-05
FR2335079B2 (en) 1983-03-11
DD124135A5 (en) 1977-02-02
PT65002B (en) 1977-09-08
CS223817B2 (en) 1983-11-25

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