GB1361228A – Electric shock protective device
– Google Patents
GB1361228A – Electric shock protective device
– Google Patents
Electric shock protective device
Info
Publication number
GB1361228A
GB1361228A
GB3153771A
GB3153771A
GB1361228A
GB 1361228 A
GB1361228 A
GB 1361228A
GB 3153771 A
GB3153771 A
GB 3153771A
GB 3153771 A
GB3153771 A
GB 3153771A
GB 1361228 A
GB1361228 A
GB 1361228A
Authority
GB
United Kingdom
Prior art keywords
circuit
casing
unit
breaker
electronic switch
Prior art date
1970-08-03
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
GB3153771A
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.)
General Electric Co
Original Assignee
General Electric Co
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.)
1970-08-03
Filing date
1971-07-06
Publication date
1974-07-24
1971-07-06
Application filed by General Electric Co
filed
Critical
General Electric Co
1974-07-24
Publication of GB1361228A
publication
Critical
patent/GB1361228A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
H02H3/26—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
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
Abstract
1361228 Protective arrangements GENERAL ELECTRIC CO 6 July 1971 [3 Aug 1970] 31537/71 Heading H2K [Also in Division H1] A circuit-breaker arrangement (see Division H1), comprises a rectangular insulating casing, a circuit interrupter in the casing, an electrically operable device 55 for causing the opening of the interrupter and means, preferably an electronic switch, for energizing the device 55 in response to an unbalance signal from a differential transformer 60. The arrangement is formed by an assembly of a plug-in circuit breaker unit having a casing 37, contacts 52A, 52B and a thermal and magnetic overcurrent responsive means 53, a unit having a casing 38 containing the device 55, a test switch 57 and a resistor 58, and a unit having an L-shaped casing containing the electronic switch and the transformer 60. The three casings are riveted together to form the rectangular casing which when mounted in a panel board occupies the spaces provided for three circuit-breaker units. A further circuit-breaker unit may be added to form a double-pole arrangement which may be used to control the supply to a plurality of circuit-breakers, Fig. 6 (not shown). The electronic switch may be that on pages 166-167 of the Silicon Controlled Rectifier Manual, 4th edition, General Electric Company 1967, and comprise a silicon controlled rectifier with a unijunction transistor trigger circuit.
GB3153771A
1970-08-03
1971-07-06
Electric shock protective device
Expired
GB1361228A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US6058470A
1970-08-03
1970-08-03
Publications (1)
Publication Number
Publication Date
GB1361228A
true
GB1361228A
(en)
1974-07-24
Family
ID=22030431
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3153771A
Expired
GB1361228A
(en)
1970-08-03
1971-07-06
Electric shock protective device
Country Status (5)
Country
Link
JP
(1)
JPS474226A
(en)
DE
(1)
DE2138804A1
(en)
FR
(1)
FR2101208B1
(en)
GB
(1)
GB1361228A
(en)
NL
(1)
NL7110351A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2247568A
(en)
*
1990-08-30
1992-03-04
Mk Electric Ltd
Circuitbreaker electrical control apparatus
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5184278A
(en)
*
1990-11-28
1993-02-02
Square D Company
Lighting control and emergy management system
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1065517B
(en)
*
1959-09-17
1971
1971-07-06
GB
GB3153771A
patent/GB1361228A/en
not_active
Expired
1971-07-27
NL
NL7110351A
patent/NL7110351A/xx
unknown
1971-07-30
JP
JP5683071A
patent/JPS474226A/ja
active
Pending
1971-08-03
DE
DE19712138804
patent/DE2138804A1/en
active
Pending
1971-08-03
FR
FR7128491A
patent/FR2101208B1/fr
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2247568A
(en)
*
1990-08-30
1992-03-04
Mk Electric Ltd
Circuitbreaker electrical control apparatus
Also Published As
Publication number
Publication date
DE2138804A1
(en)
1972-02-10
JPS474226A
(en)
1972-03-01
FR2101208B1
(en)
1974-09-06
NL7110351A
(en)
1972-02-07
FR2101208A1
(en)
1972-03-31
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Legal Events
Date
Code
Title
Description
1974-12-04
PS
Patent sealed
1976-02-11
PLNP
Patent lapsed through nonpayment of renewal fees
