BE457455A - - Google Patents

Info

Publication number
BE457455A
BE457455A BE457455DA BE457455A BE 457455 A BE457455 A BE 457455A BE 457455D A BE457455D A BE 457455DA BE 457455 A BE457455 A BE 457455A
Authority
BE
Belgium
Prior art keywords
winding
current
transformer
relay
contact
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE457455A publication Critical patent/BE457455A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE457455D BE457455A (forum.php)

Publications (1)

Publication Number Publication Date
BE457455A true BE457455A (forum.php)

Family

ID=110922

Family Applications (1)

Application Number Title Priority Date Filing Date
BE457455D BE457455A (forum.php)

Country Status (1)

Country Link
BE (1) BE457455A (forum.php)

Similar Documents

Publication Publication Date Title
JP5069686B2 (ja) フォイル巻線パルストランス
BE457455A (forum.php)
US1842595A (en) Electromagnetic device
JPH077978A (ja) 電動機のコンドルファ起動方式
SU1330670A1 (ru) Параметрический трансформатор
TWI862981B (zh) 開閉裝置之環狀螺旋彈簧及使用其之開閉裝置
US1968853A (en) Multiphase motor
JPH0338755Y2 (forum.php)
EP0292268B1 (en) Impedance arrangement for limiting transients
US2264696A (en) Switch control circuit
US1181556A (en) Means for producing high-frequency currents.
US1181623A (en) Electrical condenser and manner of mounting the same.
KR102621363B1 (ko) 초전도 한류기용 코일 권선 장치
WO2005073994A1 (ja) 遮断器
JP2001189220A (ja) 変圧器装置
RU2134475C1 (ru) Устройство для фильтра токов обратной последовательности трехфазной электрической установки
WO2025167724A1 (zh) 继电器
JPH07283044A (ja) トランス
JPS61266054A (ja) 発電機
US1710761A (en) Alternating-current electromagnet
US2826727A (en) Motor starting relay
US2112382A (en) Radio apparatus
KR20050065800A (ko) 차단기의 원추 형상 코아를 가진 코일 장치
KR950012557A (ko) 편향 요우크
JPH0689650A (ja) 遮断器