GB198683A - Creación de Inventos y Patentes con Inteligencia Artificial

GB198683A – Improvements in and relating to automatic reclosing circuit breaker systems
– Google Patents

GB198683A – Improvements in and relating to automatic reclosing circuit breaker systems
– Google Patents
Improvements in and relating to automatic reclosing circuit breaker systems

Info

Publication number
GB198683A

GB198683A
GB14397/23A
GB1439723A
GB198683A
GB 198683 A
GB198683 A
GB 198683A
GB 14397/23 A
GB14397/23 A
GB 14397/23A
GB 1439723 A
GB1439723 A
GB 1439723A
GB 198683 A
GB198683 A
GB 198683A
Authority
GB
United Kingdom
Prior art keywords
circuit
load
relay
reclosing
breaker
Prior art date
1922-06-05
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
GB14397/23A
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.)

British Thomson Houston Co Ltd

Original Assignee
British Thomson Houston Co Ltd
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.)
1922-06-05
Filing date
1923-05-31
Publication date
1924-06-05

1923-05-31
Application filed by British Thomson Houston Co Ltd
filed
Critical
British Thomson Houston Co Ltd

1924-06-05
Publication of GB198683A
publication
Critical
patent/GB198683A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

238000004804
winding
Methods

0.000
abstract
5

230000007423
decrease
Effects

0.000
abstract
1

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

H02H3/02—Details

H02H3/06—Details with automatic reconnection

H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection

Abstract

198,683. British Thomson – Houston Co., Ltd., (Assignees of Anderson, A. E.). June 5, 1922, [Convention date]. Cut-out systems.-An automatically-reclosing circuit-breaker system comprises relay arrangements whereby the circuit-breaker is reclosed in response to a predetermined voltage across the load circuit when the load circuit is not supplied with current at some other point, and in response to the current, which is proportional to the voltage difference supplied to the load circuit from the source of current to be connected by the closing of the circuit-breaker, when the load circuit is supplied at some other point. As shown in the Figure, two sources 8, 7 supply a load circuit 1, 2 through circuit-breakers 9, 10 oi which 10 is automatically reclosed by means of the coil 11 which acts also as a maintaining coil and is normally connected across 3, 4 through the overload relav 12, the back contacts 14 and the hand-operated switch 15. The reclosing action is under the control of a reclosing relay 24 consisting of a polar structure having a magnetizing winding 35 and a fixed high resistance winding 31 which surrounds the armature and is connected permanently across the load circuit. The relay closes its contacts when winding 35 is energized and the voltage across the winding 31, that is, across the load is adequate. The connections of the winding 35 are under the control of relays 19, 20 of which relay 19 opens when the applied potential is above a small predetermined value and relay 20 closes when the applied potential is above a predetermined high value. In the normal closed position of the circuit-breaker 10, a resistor 18 is short-circuited thereby. The voltage drop across this resistor is used for reclosing; it is very much greater when supply is from a single source than when from multiple sources. When an overload or short-circuit occurs on the load 1, 2 the overload relay 12 opens, opening the circuit of 11, whereupon the circuit-breaker opens, opening contacts 14 and, consequently, deenergizing 35 whereupon the reclosing relay opens its contacts 22, 23. A delay-action relay 26 in connection with the relays 19, 20 is now connected across 3, 4 through contacts 27 and, when conditions have been stabilized, relay 26 closes its contacts 25. Resistor 18 is now in shunt to the circuit-breaker, and a small current is supplied to the load through the resistor. The overload relay 12 recloses. In the case of a load supplied, from a single source, the circuitbreaker 10 is reclosed in the following manner. Practically the full potential of the source exists across 18 and, consequently, 19 opens and 20 closes; the latter connects 35 across 3, 4 through 25 and 15. When the load resistance increases, the potential across it and consequently across 31 increases until sufficient to operate the reclosing relay and close 22, 23. This completes the reclosing circuit 3, 11, 12, 22-23, 20, 25, 15, 4 and the circuit breaker recloses and the conditions existing before the overload &c. are reproduced. If the load is supplied from sources in addition to 3, 4, the potential difference across 18, which is the difference of the voltages across 3, 4 and 1, 2, is inadequate to close 20 but serves to close 19. When this potential difference decreases to a predetermined value, due to the increase of the load resistance, 19 closes, completing a circuit for reclosing the circuit breaker 11, as follows-3, 11, 12, 19, 25, 15, 4. If all load is disconnected from the load circuit in the case of supply from a single source only, the reclosing circuit of 11 is completed through the relay 19 as described above in connection with multiple sources.

GB14397/23A
1922-06-05
1923-05-31
Improvements in and relating to automatic reclosing circuit breaker systems

Expired

GB198683A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US566001A

US1626495A
(en)

1922-06-05
1922-06-05
Automatic reclosing-circuit-breaker system

Publications (1)

Publication Number
Publication Date

GB198683A
true

GB198683A
(en)

1924-06-05

Family
ID=24261023
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB14397/23A
Expired

GB198683A
(en)

1922-06-05
1923-05-31
Improvements in and relating to automatic reclosing circuit breaker systems

Country Status (3)

Country
Link

US
(1)

US1626495A
(en)

FR
(1)

FR573468A
(en)

GB
(1)

GB198683A
(en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2465052A
(en)

1947-06-20
1949-03-22
Rca Corp
Motor control system

1922

1922-06-05
US
US566001A
patent/US1626495A/en
not_active
Expired – Lifetime

1923

1923-05-31
GB
GB14397/23A
patent/GB198683A/en
not_active
Expired

1923-06-04
FR
FR573468D
patent/FR573468A/en
not_active
Expired

Also Published As

Publication number
Publication date

FR573468A
(en)

1924-06-25

US1626495A
(en)

1927-04-26

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