GB1547221A - Safety device for detecting insulation faults on an electrical apparatus - Google Patents

Safety device for detecting insulation faults on an electrical apparatus

Info

Publication number
GB1547221A
GB1547221A GB3714/76A GB371476A GB1547221A GB 1547221 A GB1547221 A GB 1547221A GB 3714/76 A GB3714/76 A GB 3714/76A GB 371476 A GB371476 A GB 371476A GB 1547221 A GB1547221 A GB 1547221A
Authority
GB
United Kingdom
Prior art keywords
safety device
electrical apparatus
insulation faults
detecting insulation
detecting
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
GB3714/76A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FR7503653A external-priority patent/FR2299750A1/fr
Priority claimed from FR7539397A external-priority patent/FR2335079A2/fr
Application filed by Individual filed Critical Individual
Publication of GB1547221A publication Critical patent/GB1547221A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB3714/76A 1975-01-31 1976-01-30 Safety device for detecting insulation faults on an electrical apparatus Expired GB1547221A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7503653A FR2299750A1 (fr) 1975-01-31 1975-01-31 Dispositif de securite pour la
FR7539397A FR2335079A2 (fr) 1975-12-12 1975-12-12 Dispositif de securite pour la detection d'un defaut d'isolation electrique entre deux fils du circuit d'alimentation d'une machine

Publications (1)

Publication Number Publication Date
GB1547221A true GB1547221A (en) 1979-06-06

Family

ID=26218717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3714/76A Expired GB1547221A (en) 1975-01-31 1976-01-30 Safety device for detecting insulation faults on an electrical apparatus

Country Status (12)

Country Link
AT (1) AT355656B (fr)
AU (1) AU501224B2 (fr)
BR (1) BR7600661A (fr)
CA (1) CA1066358A (fr)
CH (1) CH619328A5 (fr)
DE (1) DE2603632A1 (fr)
DK (1) DK39876A (fr)
GB (1) GB1547221A (fr)
IN (1) IN145145B (fr)
NL (1) NL7600903A (fr)
OA (1) OA05231A (fr)
SE (1) SE413702B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659744B1 (fr) * 1990-03-16 1992-07-24 Thomson Csf Dispositif de detection de defauts d'isolement electrique pour installation sous tension.

Also Published As

Publication number Publication date
DK39876A (da) 1976-08-01
CH619328A5 (en) 1980-09-15
BR7600661A (pt) 1976-08-31
AU501224B2 (en) 1979-06-14
AU1073976A (en) 1977-08-11
AT355656B (de) 1980-03-10
OA05231A (fr) 1981-02-28
ATA67376A (de) 1979-08-15
SE413702B (sv) 1980-06-16
NL7600903A (nl) 1976-08-03
DE2603632A1 (de) 1976-08-05
SE7601031L (sv) 1976-08-02
CA1066358A (fr) 1979-11-13
IN145145B (fr) 1978-09-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee