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(en )
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1985-12-31
Variable reactance inductor with adjustable ranges
GB922355A
(enrdf_load_stackoverflow )
JPH04354266A
(ja )
1992-12-08
高圧安定化回路
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Modulation installation for sector supply of charge elements
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1952-02-05
System for reducing contact arcing in synchronous switching apparatus
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회로 차단기
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1958-06-17
Autotransformer voltage regulator
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1945-11-13
Electronic trigger method and circuit
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(en )
1952-12-02
Apparatus for electric voltage and current regulation
GB422775A
(en )
1935-01-17
Improvements relating to electric switches for alternating current
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(de )
1979-06-21
Anordnung zum Anschalten von Transformatoren, insbesondere leerlaufenden Transformatoren, an eine Wechselspannungsquelle
SU173327A1
(ru )
БЕСКОНТАКТНОЕ ПРОМЕЖУТОЧНОЕ РЕЛЕEGZCGIQCHAI^ пл7:;1т;;з -^ т:::::;ч^г:;;пBiijAljDi^KA
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(en )
1916-11-14
Electrical protective device.
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(en )
1919-05-13
Improvements in or relating to Electrical Transformers for Regulating or Varying the Voltage of the Current supplied therefrom.
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(en )
1930-01-28
Circuit interrupter
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(en )
1920-06-15
Arc-welding system
JPH065189A
(ja )
1994-01-14
回路遮断器
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(en )
1939-05-23
Controller for circuit interrupters
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(ja )
1996-08-21
電源装置
Bevan
1945
The application of high-voltage steel-tank mercury-arc rectifiers to broadcast transmitters
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(en )
1920-06-15
Welding system
Dixey et al.
1951
Methods of increasing the power rating of vibratory convertors
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1921-01-18
Radiotelegraphy
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1938-05-23
Improvements in and relating to high-speed electric circuit-closing mechanism