GB8829001D0 - Electronic tap changer - Google Patents

Electronic tap changer

Info

Publication number
GB8829001D0
GB8829001D0 GB888829001A GB8829001A GB8829001D0 GB 8829001 D0 GB8829001 D0 GB 8829001D0 GB 888829001 A GB888829001 A GB 888829001A GB 8829001 A GB8829001 A GB 8829001A GB 8829001 D0 GB8829001 D0 GB 8829001D0
Authority
GB
United Kingdom
Prior art keywords
tap changer
electronic tap
electronic
changer
tap
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.)
Withdrawn
Application number
GB888829001A
Other versions
GB2220088A (en
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.)
W J Parry & Co Nottingham Ltd
Original Assignee
W J Parry & Co Nottingham 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 W J Parry & Co Nottingham Ltd filed Critical W J Parry & Co Nottingham Ltd
Publication of GB8829001D0 publication Critical patent/GB8829001D0/en
Publication of GB2220088A publication Critical patent/GB2220088A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/18—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having a starting switch
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/40—Controlling the intensity of light discontinuously
GB8829001A 1988-06-11 1988-12-12 Electronic tap changer for discharge lamp Withdrawn GB2220088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888813883A GB8813883D0 (en) 1988-06-11 1988-06-11 Electronic tap changer

Publications (2)

Publication Number Publication Date
GB8829001D0 true GB8829001D0 (en) 1989-01-25
GB2220088A GB2220088A (en) 1989-12-28

Family

ID=10638502

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888813883A Pending GB8813883D0 (en) 1988-06-11 1988-06-11 Electronic tap changer
GB8829001A Withdrawn GB2220088A (en) 1988-06-11 1988-12-12 Electronic tap changer for discharge lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888813883A Pending GB8813883D0 (en) 1988-06-11 1988-06-11 Electronic tap changer

Country Status (1)

Country Link
GB (2) GB8813883D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289110A (en) * 1992-10-14 1994-02-22 Cooper Industries Input current responsive, tap changing transformer system
CZ306211B6 (en) * 2010-05-26 2016-10-05 CROSS ZlĂ­n, s.r.o. Transformer unit with controlled change of output voltage magnitude

Also Published As

Publication number Publication date
GB2220088A (en) 1989-12-28
GB8813883D0 (en) 1988-07-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)