GB1309972A - Protective arrangement against earth leakage currents for a multi- phase electric supply line - Google Patents

Protective arrangement against earth leakage currents for a multi- phase electric supply line

Info

Publication number
GB1309972A
GB1309972A GB2411671A GB2411671A GB1309972A GB 1309972 A GB1309972 A GB 1309972A GB 2411671 A GB2411671 A GB 2411671A GB 2411671 A GB2411671 A GB 2411671A GB 1309972 A GB1309972 A GB 1309972A
Authority
GB
United Kingdom
Prior art keywords
circuit
breaker
series
earth leakage
secondary winding
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
GB2411671A
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.)
Societe dAppareillage Electrique SAPAREL SA
Original Assignee
Societe dAppareillage Electrique SAPAREL 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 Societe dAppareillage Electrique SAPAREL SA filed Critical Societe dAppareillage Electrique SAPAREL SA
Publication of GB1309972A publication Critical patent/GB1309972A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/32—Circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
    • 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
    • H02H3/34—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 of a three-phase system
    • H02H3/347—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 of a three-phase system using summation current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)
  • Transformers For Measuring Instruments (AREA)
GB2411671A 1970-03-16 1971-04-19 Protective arrangement against earth leakage currents for a multi- phase electric supply line Expired GB1309972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7009286A FR2081183A1 (enExample) 1970-03-16 1970-03-16

Publications (1)

Publication Number Publication Date
GB1309972A true GB1309972A (en) 1973-03-14

Family

ID=9052292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2411671A Expired GB1309972A (en) 1970-03-16 1971-04-19 Protective arrangement against earth leakage currents for a multi- phase electric supply line

Country Status (6)

Country Link
BE (1) BE763766A (enExample)
DE (1) DE2112326A1 (enExample)
ES (1) ES389199A1 (enExample)
FR (1) FR2081183A1 (enExample)
GB (1) GB1309972A (enExample)
NL (1) NL7103097A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936772A3 (en) * 2002-11-08 2010-04-07 Eaton Electric Limited Residual current devices
CN112243530A (zh) * 2018-05-16 2021-01-19 黑格尔电镀物品股份公司 电气差动开关装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR946815A (fr) * 1947-05-14 1949-06-15 Appareil pour la désaimantation de pièces en fer ou en acier
FR1235318A (fr) * 1957-08-10 1960-07-08 Contacteur ou disjoncteur à rémanence munis d'un relais différentiel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936772A3 (en) * 2002-11-08 2010-04-07 Eaton Electric Limited Residual current devices
CN112243530A (zh) * 2018-05-16 2021-01-19 黑格尔电镀物品股份公司 电气差动开关装置
CN112243530B (zh) * 2018-05-16 2023-09-05 黑格尔电镀物品股份公司 电气差动开关装置

Also Published As

Publication number Publication date
DE2112326A1 (de) 1971-09-30
ES389199A1 (es) 1974-05-01
NL7103097A (enExample) 1971-09-20
BE763766A (fr) 1971-09-06
FR2081183A1 (enExample) 1971-12-03

Similar Documents

Publication Publication Date Title
GB1244045A (en) Improvements in or relating to circuit breaking apparatus
GB1236082A (en) A system of overload protection by using superconducting conductors
GB880238A (en) Protective arrangements for electric circuits and apparatus
GB1133398A (en) Electric protective circuit
GB1085367A (en) Ignition circuit
GB1214678A (en) An improved electrical socket outlet
GB1309972A (en) Protective arrangement against earth leakage currents for a multi- phase electric supply line
ATE3679T1 (de) Vollisolierte, metallgekapselte hochspannungsschaltanlage mit einleiterstromwandlern.
GB735755A (en) Improvements in and relating to the protection of electrical circuits
GB695920A (en) Fault protective arrangement for direct current systems
GB1254882A (en) A.c. electric motor apparatus
GB1230318A (enExample)
GB1200025A (en) Improvements in power supply for circuit breaker tripping
GB1254788A (en) Improvements in or relating to devices for indicating the condition of a switch
GB1004594A (en) Improvements in and relating to electrical transformers and the operation thereof
GB1158033A (en) Ignition System Applying Induced Voltage to the Coil Primary
GB1216686A (en) An electromagnet switching circuit
GB794106A (en) Improvements in earth leakage protective devices
GB1471050A (en) Electric vehicle battery recharging circuit
GB575238A (en) Protective signalling or releasing devices for use with electric power capacitors
GB1305966A (enExample)
GB1114725A (en) Electrical protection circuit
GB785539A (en) Improvements in and relating to earth leakage detection and/or indication systems
GB1152793A (en) Improvements in and relating to Earth Leakage Protection Devices
GB1520736A (en) Electrical protection circuits

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees