GB1445217A – Electrical circuit breaker and contacts therefor
– Google Patents
GB1445217A – Electrical circuit breaker and contacts therefor
– Google Patents
Electrical circuit breaker and contacts therefor
Info
Publication number
GB1445217A
GB1445217A
GB3301074A
GB3301074A
GB1445217A
GB 1445217 A
GB1445217 A
GB 1445217A
GB 3301074 A
GB3301074 A
GB 3301074A
GB 3301074 A
GB3301074 A
GB 3301074A
GB 1445217 A
GB1445217 A
GB 1445217A
Authority
GB
United Kingdom
Prior art keywords
contact
circuit breaker
tube
ring
gas
Prior art date
1973-08-02
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
GB3301074A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
1973-08-02
Filing date
1974-07-25
Publication date
1976-08-04
1973-08-02
Priority claimed from DE19732339553
external-priority
patent/DE2339553C3/en
1974-07-25
Application filed by Siemens AG
filed
Critical
Siemens AG
1976-08-04
Publication of GB1445217A
publication
Critical
patent/GB1445217A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
239000000463
material
Substances
0.000
abstract
2
230000007704
transition
Effects
0.000
abstract
2
OKTJSMMVPCPJKN-UHFFFAOYSA-N
Carbon
Chemical compound
[C]
OKTJSMMVPCPJKN-UHFFFAOYSA-N
0.000
abstract
1
RYGMFSIKBFXOCR-UHFFFAOYSA-N
Copper
Chemical compound
[Cu]
RYGMFSIKBFXOCR-UHFFFAOYSA-N
0.000
abstract
1
229910000881
Cu alloy
Inorganic materials
0.000
abstract
1
241000722921
Tulipa gesneriana
Species
0.000
abstract
1
239000003795
chemical substances by application
Substances
0.000
abstract
1
239000004020
conductor
Substances
0.000
abstract
1
229910052802
copper
Inorganic materials
0.000
abstract
1
239000010949
copper
Substances
0.000
abstract
1
229910002804
graphite
Inorganic materials
0.000
abstract
1
239000010439
graphite
Substances
0.000
abstract
1
229910052573
porcelain
Inorganic materials
0.000
abstract
1
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
Abstract
1445217 Gas-blast circuit breaker contacts SIEMENS AG 25 July 1974 [2 Aug 1973] 33010/74 Heading H1N A fixed, hollow contact for a gas-blast circuit breaker comprises a ring or tube 3 of conductive material, e.g. cold-hardened copper or a copper alloy, supporting a circular nozzle 7 of a material, such as graphite, having a conductivity less than that of the ring or tube but which increases when the material is subjected to pressure, the external diameter D1 being greater than that of the ring or tube D2 where the transition from one to the other takes place along the outer surface. The increase in diameter should be at least 0À2 mm., preferably 0À4 to 0À8 mm. Thus a moving contact, such as a tulip contact, engaging the outer surface, will exert increased contact pressure on the nozzle at the moment of transition and so lessen the likelihood of arcing at that junction due to a voltage jump during a contact separating operation. A circuit breaker may comprise a pair of such contacts co-operating with a moving bridging contact in a gas-blast breaker in a break chamber of porcelain filled with SF 6 .
GB3301074A
1973-08-02
1974-07-25
Electrical circuit breaker and contacts therefor
Expired
GB1445217A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19732339553
DE2339553C3
(en)
1973-08-02
Contact system for high-voltage circuit breakers
Publications (1)
Publication Number
Publication Date
GB1445217A
true
GB1445217A
(en)
1976-08-04
Family
ID=5888895
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3301074A
Expired
GB1445217A
(en)
1973-08-02
1974-07-25
Electrical circuit breaker and contacts therefor
Country Status (5)
Country
Link
US
(1)
US4027124A
(en)
JP
(1)
JPS579168B2
(en)
BR
(1)
BR7405833D0
(en)
ES
(1)
ES428855A1
(en)
GB
(1)
GB1445217A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US6326552B1
(en)
1999-12-01
2001-12-04
Hubbel Incorporated
Insulator end fitting with non-machined annular attachment flange
CN104377047B
(en)
*
2014-12-01
2017-01-18
哈尔滨理工大学
Electrical moving contact structure capable of automatically adjusting contact-surface angle
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3848101A
(en)
*
1969-09-26
1974-11-12
Ite Imperial Corp
Elongated jaw contact for oil circuit breaker disconnect contact
DE2209287C3
(en)
*
1972-02-22
1974-12-12
Siemens Ag, 1000 Berlin Und 8000 Muenchen
Electric pressure gas switch
US3835274A
(en)
*
1972-06-20
1974-09-10
Siemens Ag
Contact system for a high-voltage circuit breaker
1974
1974-07-25
GB
GB3301074A
patent/GB1445217A/en
not_active
Expired
1974-07-26
BR
BR5833/74A
patent/BR7405833D0/en
unknown
1974-08-01
ES
ES428855A
patent/ES428855A1/en
not_active
Expired
1974-08-01
US
US05/493,898
patent/US4027124A/en
not_active
Expired – Lifetime
1974-08-02
JP
JP8895674A
patent/JPS579168B2/ja
not_active
Expired
Also Published As
Publication number
Publication date
DE2339553A1
(en)
1975-02-20
ES428855A1
(en)
1976-08-16
JPS5044471A
(en)
1975-04-21
DE2339553B2
(en)
1976-08-26
US4027124A
(en)
1977-05-31
BR7405833D0
(en)
1975-05-20
JPS579168B2
(en)
1982-02-19
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Legal Events
Date
Code
Title
Description
1976-12-15
PS
Patent sealed [section 19, patents act 1949]
1991-03-27
PCNP
Patent ceased through non-payment of renewal fee
