GB201038A - Improvements in and relating to systems of electrical distribution - Google Patents

Improvements in and relating to systems of electrical distribution

Info

Publication number
GB201038A
GB201038A GB20705/22A GB2070522A GB201038A GB 201038 A GB201038 A GB 201038A GB 20705/22 A GB20705/22 A GB 20705/22A GB 2070522 A GB2070522 A GB 2070522A GB 201038 A GB201038 A GB 201038A
Authority
GB
United Kingdom
Prior art keywords
resistance
circuit
winding
generator
relay
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
GB20705/22A
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.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to GB20705/22A priority Critical patent/GB201038A/en
Publication of GB201038A publication Critical patent/GB201038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
    • H01H7/08—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices
    • H01H7/10—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices by escapement
    • H01H7/12—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices by escapement mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

201,038. British Thomson - Houston Co., Ltd., (General Electric Co.). July 28, 1922. Protective arrangements.-The output of a generator is limited under abnormal load conditions by placing a resistance in operative relation to the circuit when a short-circuit or abnormal load occurs and by connecting the shunt field-winding of the generator in parallel with the armature and the resistance. Under normal conditions the resistance is shunted by a series field-winding. The generator is connected to the circuit through a circuit-breaker, the contacts of which are bridged by a low impedance. The armature 1 and a resistance 7 are shunted by a field-winding 5 provided with a regulating resistance 15. A series field-winding 6 is adapted under normal conditions to be connected in parallel with the resistance 7 by means of a voltage relay 8, the operating winding 10 of which is controlled by a current relay 12. To connect the generator to line a switch 20 is closed to complete the circuit of the operating coil 18 of a circuitbreaker 17 and to connect the generator to line through a resistance 19 which is short-circuited when the circuit-breaker 17 is closed. At a predetermined voltage the relay 8 operates to close the circuit of the field-winding 6 in shunt with the resistance 7. Upon the occurrence of a shortcircuit or an abnormal load the current relay 12 operates to open the circuit of the operating coil 10 of the relay 8 and the resistance 7 is placed in the load circuit.
GB20705/22A 1922-07-28 1922-07-28 Improvements in and relating to systems of electrical distribution Expired GB201038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20705/22A GB201038A (en) 1922-07-28 1922-07-28 Improvements in and relating to systems of electrical distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20705/22A GB201038A (en) 1922-07-28 1922-07-28 Improvements in and relating to systems of electrical distribution

Publications (1)

Publication Number Publication Date
GB201038A true GB201038A (en) 1923-07-26

Family

ID=10150305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20705/22A Expired GB201038A (en) 1922-07-28 1922-07-28 Improvements in and relating to systems of electrical distribution

Country Status (1)

Country Link
GB (1) GB201038A (en)

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