GB793278A - Improved system for controlling parallel circuits supplying a common load - Google Patents

Improved system for controlling parallel circuits supplying a common load

Info

Publication number
GB793278A
GB793278A GB2022/56A GB202256A GB793278A GB 793278 A GB793278 A GB 793278A GB 2022/56 A GB2022/56 A GB 2022/56A GB 202256 A GB202256 A GB 202256A GB 793278 A GB793278 A GB 793278A
Authority
GB
United Kingdom
Prior art keywords
current
relay
circulating
currents
common load
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
GB2022/56A
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
Publication of GB793278A publication Critical patent/GB793278A/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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

793,278. Voltage. GENERAL ELECTRIC CO. Jan. 20, 1956 [Jan. 21, 1955], No. 2022/56. Class 38 (4). In a system for controlling parallel connected circuits supplying a common load wherein two circuits are each provided with automatic voltage regulating apparatus responsive to the load current, as in Specifications 587,881 and 589,854, the regulating apparatus is controlled also in dependence on the direction of energy transfer by the circulating currents so as to limit the magnitude of these currents to a predetermined value. The circulating currents operate an alternating current induction disc relay 26 according to the amount, and direction of energy transfer, to bring switch arm 29 against fixed contact 30 or 31 according to the phase of the circulating current in winding 25 relative to that of the current in voltage coil 27, and the relay 33 or 34 thus operated opens contact 35 or 36, respectively in the tap changing motor control circuit, Fig. 2, to prevent the motor rotating in a direction which will increase the circulating current. The winding 27 of the relay 26 may be fed from an alternative independent source.
GB2022/56A 1955-01-21 1956-01-20 Improved system for controlling parallel circuits supplying a common load Expired GB793278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US793278XA 1955-01-21 1955-01-21

Publications (1)

Publication Number Publication Date
GB793278A true GB793278A (en) 1958-04-16

Family

ID=22149836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2022/56A Expired GB793278A (en) 1955-01-21 1956-01-20 Improved system for controlling parallel circuits supplying a common load

Country Status (1)

Country Link
GB (1) GB793278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190219A (en) * 1986-05-03 1987-11-11 Nicholas John Hiscock Voltage control for high voltage power transformers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190219A (en) * 1986-05-03 1987-11-11 Nicholas John Hiscock Voltage control for high voltage power transformers
GB2190219B (en) * 1986-05-03 1990-06-13 Nicholas John Hiscock A voltage control scheme for high voltage power transformers

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