GB256744A - Improvements in electric motor starters - Google Patents

Improvements in electric motor starters

Info

Publication number
GB256744A
GB256744A GB1557725A GB1557725A GB256744A GB 256744 A GB256744 A GB 256744A GB 1557725 A GB1557725 A GB 1557725A GB 1557725 A GB1557725 A GB 1557725A GB 256744 A GB256744 A GB 256744A
Authority
GB
United Kingdom
Prior art keywords
plunger
handle
pin
action
brake block
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.)
Expired
Application number
GB1557725A
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.)
Allen West and Co Ltd
Original Assignee
Allen West and Co 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 Allen West and Co Ltd filed Critical Allen West and Co Ltd
Priority to GB1557725A priority Critical patent/GB256744A/en
Publication of GB256744A publication Critical patent/GB256744A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02—Details of starting control
    • H02P1/022—Security devices, e.g. correct phase sequencing
    • H02P1/024—Protection against simultaneous starting by two starting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

256,744. West & Co., Ltd., A., and Breeze, V. June 16, 1925. Controllers with overload release. -The action of switching on a motor by moving a handle 2, Fig. 2, is made to exert a positive mechanical restraint upon the overload plunger 5 so as to prevent its movement during the the rush of current at starting. The action is transmitted from the handle 2 through toggle links 29, 28, a pin and slot 26, 27, a lever 23, a spring 17, and a bell-crank 8, 14 to a brake block 4. which thus bears forcibly upon the side of the plunger. The completion of the movement of the handle frees the pin and slot connection as shown in Fig. 5, and the brake block releases the plunger after a time interval due to a dashpot 3.
GB1557725A 1925-06-16 1925-06-16 Improvements in electric motor starters Expired GB256744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1557725A GB256744A (en) 1925-06-16 1925-06-16 Improvements in electric motor starters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1557725A GB256744A (en) 1925-06-16 1925-06-16 Improvements in electric motor starters

Publications (1)

Publication Number Publication Date
GB256744A true GB256744A (en) 1926-08-19

Family

ID=10061601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1557725A Expired GB256744A (en) 1925-06-16 1925-06-16 Improvements in electric motor starters

Country Status (1)

Country Link
GB (1) GB256744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815359A (en) * 1995-09-08 1998-09-29 Texas Instruments Incorporated Semiconductor device providing overvoltage protection against electrical surges of positive and negative polarities, such as caused by lightning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815359A (en) * 1995-09-08 1998-09-29 Texas Instruments Incorporated Semiconductor device providing overvoltage protection against electrical surges of positive and negative polarities, such as caused by lightning

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