GB384528A
(en )
1932-12-08
Improvements in switch gear for electric transformers
GB273678A
(en )
1927-09-22
Improvements in and relating to transformer voltage regulating systems
US1818589A
(en )
1931-08-11
Transformer
GB626126A
(en )
1949-07-11
Improvements in and relating to transformer circuits
GB381554A
(en )
1932-09-23
Improvements in or relating to voltage regulators
GB313572A
(en )
1930-09-15
Improvements in or relating to regulating means for regulating transformers
SU90578A1
(ru )
1951-06-30
Устройство дл ступенчатого регулировани трансформаторов
SU89221A1
(ru )
1949-11-30
Регулировочный автотрансформатор
GB634496A
(en )
1950-03-22
Improvements in transformers having ratio-control means
GB592198A
(en )
1947-09-10
Improved system of tap changing under load for electric transformers
SU28967A1
(ru )
1933-01-31
Автотрансформатор
GB143160A
(en )
1920-05-20
Means for measuring alternating electric currents
SU121839A1
(ru )
1959-11-30
Устройство дл защиты электроустановок
GB902970A
(en )
1962-08-09
Improvements relating to voltage control apparatus
GB185920A
(en )
1922-09-21
Improvements in and relating to voltage regulating systems
GB371670A
(en )
1932-04-28
Improvements in and relating to voltage-regulating transformers
GB226233A
(en )
1925-12-10
Alternating/direct current converter with wide voltage regulation
GB472490A
(en )
1937-09-23
Improvements in or relating to regulating transformers
GB324460A
(en )
1930-01-30
Improvements in or relating to transformer tap-changing arrangements
GB163324A
(en )
1921-10-20
Improved process and apparatus for connecting additional transformers to a supply circuit
GB313559A
(en )
1930-09-23
Improvements in or relating to regulating transformers
GB802799A
(en )
1958-10-08
Improvements relating to apparatus for sensing the position of a movable element
GB199255A
(en )
1923-06-21
Improvements relating to electrical transformers
GB644289A
(en )
1950-10-11
Improvements in tap changing systems in electric induction apparatus
GB281669A
(en )
1929-01-31
Improvements in and relating to electric switches for adjusting ratios of transformers