KR900011798U - 전동식드라이버 제어회로 - Google Patents

전동식드라이버 제어회로

Info

Publication number
KR900011798U
KR900011798U KR2019880021004U KR880021004U KR900011798U KR 900011798 U KR900011798 U KR 900011798U KR 2019880021004 U KR2019880021004 U KR 2019880021004U KR 880021004 U KR880021004 U KR 880021004U KR 900011798 U KR900011798 U KR 900011798U
Authority
KR
South Korea
Prior art keywords
control circuit
driver control
electric driver
electric
circuit
Prior art date
Application number
KR2019880021004U
Other languages
English (en)
Other versions
KR910003382Y1 (ko
Inventor
전대권
Original Assignee
계양전기 주식회사
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 계양전기 주식회사 filed Critical 계양전기 주식회사
Priority to KR2019880021004U priority Critical patent/KR910003382Y1/ko
Publication of KR900011798U publication Critical patent/KR900011798U/ko
Application granted granted Critical
Publication of KR910003382Y1 publication Critical patent/KR910003382Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
KR2019880021004U 1988-12-19 1988-12-19 전동식드라이버 제어회로 KR910003382Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019880021004U KR910003382Y1 (ko) 1988-12-19 1988-12-19 전동식드라이버 제어회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019880021004U KR910003382Y1 (ko) 1988-12-19 1988-12-19 전동식드라이버 제어회로

Publications (2)

Publication Number Publication Date
KR900011798U true KR900011798U (ko) 1990-07-02
KR910003382Y1 KR910003382Y1 (ko) 1991-05-24

Family

ID=19282288

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019880021004U KR910003382Y1 (ko) 1988-12-19 1988-12-19 전동식드라이버 제어회로

Country Status (1)

Country Link
KR (1) KR910003382Y1 (ko)

Also Published As

Publication number Publication date
KR910003382Y1 (ko) 1991-05-24

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Legal Events

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A201 Request for examination
E701 Decision to grant or registration of patent right
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Payment date: 19990428

Year of fee payment: 9

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