[go: up one dir, main page]

GB767057A - Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators - Google Patents

Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators

Info

Publication number
GB767057A
GB767057A GB29221/54A GB2922154A GB767057A GB 767057 A GB767057 A GB 767057A GB 29221/54 A GB29221/54 A GB 29221/54A GB 2922154 A GB2922154 A GB 2922154A GB 767057 A GB767057 A GB 767057A
Authority
GB
United Kingdom
Prior art keywords
phase
transformers
controlled machine
parallel
transformer
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
GB29221/54A
Inventor
John Alfred Chilman
Alfred George Mapp
John Cripps
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.)
Rotol Ltd
Original Assignee
Rotol 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.)
Filing date
Publication date
Application filed by Rotol Ltd filed Critical Rotol Ltd
Priority to GB29221/54A priority Critical patent/GB767057A/en
Priority to FR68231D priority patent/FR68231E/en
Priority to DE1956R0019646 priority patent/DE1071207B/en
Publication of GB767057A publication Critical patent/GB767057A/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)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

767,057. Running generators in parallel; automatic electric power control systems. ROTOL, Ltd. Oct. 4, 1955 [Oct. 11, 1954], No. 29291/54. Addition to 732,052. Drawings to Specification. Class 38 (4). In the control system for maintaining a predetermined load division between parallel working three-phase generators described in the parent Specification, wherein the power input to one machine is automatically varied upon deviation of the predetermined load division by a two-phase motor having one phase winding connected across two lines of the A.C. system and the other phase winding energized from the opposed secondary windings of current transformers having primary windings in the third lines, respectively, of the controlled machine and of either the system as a whole or the other machines, the secondary windings are now connected in parallel with one another, instead of in series, and the output of the winding of the transformer associated with the controlled machine opposes that of the other transformer or transformers. The transformation ratios of the transformers are made such that their effective output for energizing the motor is zero when the correct load division obtains. The switching out of any generator may also vary the ratio of the transformer associated with the controlled machine, so that it is now readjusted for correct load-sharing with the remainder of the machines in service.
GB29221/54A 1954-10-11 1954-10-11 Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators Expired GB767057A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB29221/54A GB767057A (en) 1954-10-11 1954-10-11 Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators
FR68231D FR68231E (en) 1954-10-11 1955-10-11 Device for sharing the load between three-phase alternators coupled in parallel
DE1956R0019646 DE1071207B (en) 1954-10-11 1956-09-14 DEVICE FOR REGULATING THE LOAD OF A THREE-PHASE GENERATOR IN A THREE-PHASE SYSTEM WITH AT LEAST TWO PARALLEL, SEPARATELY DRIVEN THREE-PHASE GENERATORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29221/54A GB767057A (en) 1954-10-11 1954-10-11 Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators

Publications (1)

Publication Number Publication Date
GB767057A true GB767057A (en) 1957-01-30

Family

ID=31971939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29221/54A Expired GB767057A (en) 1954-10-11 1954-10-11 Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators

Country Status (3)

Country Link
DE (1) DE1071207B (en)
FR (1) FR68231E (en)
GB (1) GB767057A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134741B (en) * 1956-09-14 1962-08-16 Motoren Werke Mannheim Ag Load balancing scheme
DE1244292B (en) * 1961-08-31 1967-07-13 Strong Electric Corp Automatic control device for arc lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134741B (en) * 1956-09-14 1962-08-16 Motoren Werke Mannheim Ag Load balancing scheme
DE1244292B (en) * 1961-08-31 1967-07-13 Strong Electric Corp Automatic control device for arc lamps

Also Published As

Publication number Publication date
DE1071207B (en) 1959-12-17
FR68231E (en) 1958-04-09

Similar Documents

Publication Publication Date Title
GB1103712A (en) Direct current power supply
GB767057A (en) Improvements in or relating to load-share responsive devices for paralleled systems of three-phase alternators
US3758842A (en) Field excitation circuit for a dynamoelectric machine
GB943400A (en) Improvements in regulator control apparatus
GB1309858A (en) System for providing an uninterrupted power supply
US3242408A (en) Variable speed induction motors
GB1165803A (en) Improvements in and relating to Transformers and Static Converters
GB1126518A (en) An arrangement for the excitation of synchronous machines
GB815546A (en) Improvements relating to automatic load-sharing apparatus for alternating-current generators
GB1075102A (en) Alternating current generator excitation systems
GB1408904A (en) Three-phase current inverter
SU650056A1 (en) Three-phase ac voltage regulator
US3529172A (en) Static converter station with provision for feeding a local network
US1777230A (en) Automatic control equipment
US2898540A (en) Generator excitation system
GB1009071A (en) A self-propelled vehicle with d.c. drive motors which can be fed selectively with direct current or alternating current
GB953532A (en) Improvements in electric motor drive systems
GB611026A (en) Alternating current motor control systems
GB500609A (en) Improvements in or relating to self-synchronous dynamo electric control systems
GB855942A (en) Improvements in self-excited synchronous generators
GB191224097A (en) Improvements in and relating to the Parallel Working of Synchronous Machines.
GB988359A (en) Improvements in or relating to frequency changers
GB1185503A (en) Improvements in or relating to Electrical Power Supply Equipment Comprising Alternators in Parallel.
GB896427A (en) Voltage regulator system for polyphase dynamoelectric machines
GB785664A (en) Improvements in or relating to means for operating self-regulating synchronous generators in parallel