GB1293134A - Resistance welding apparatus - Google Patents

Resistance welding apparatus

Info

Publication number
GB1293134A
GB1293134A GB5649268A GB5649268A GB1293134A GB 1293134 A GB1293134 A GB 1293134A GB 5649268 A GB5649268 A GB 5649268A GB 5649268 A GB5649268 A GB 5649268A GB 1293134 A GB1293134 A GB 1293134A
Authority
GB
United Kingdom
Prior art keywords
core
resistance welding
welding apparatus
primary
nov
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
GB5649268A
Inventor
James Frederick Smith
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.)
HADDON TRANSFORMERS Ltd
Original Assignee
HADDON TRANSFORMERS 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 HADDON TRANSFORMERS Ltd filed Critical HADDON TRANSFORMERS Ltd
Priority to GB5649268A priority Critical patent/GB1293134A/en
Priority to DE19691959366 priority patent/DE1959366A1/en
Publication of GB1293134A publication Critical patent/GB1293134A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H01F27/2455—Magnetic cores made from sheets, e.g. grain-oriented using bent laminations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/248—Electric supplies using discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Arc Welding Control (AREA)

Abstract

1293134 Supply systems for resistance welding apparatus HADDON TRANSFORMERS Ltd 21 Nov 1969 [28 Nov 1968] 56492/68 Heading H2H [Also in Division H1] In resistance welding apparatus comprising a transformer having a laminated core and primary and secondary windings, the primary winding being connected to an A.C. mains supply via switching apparatus which is controlled by a timer, the transformer core has an air-gap 16 in one of its limbs to reduce unidirectional flux therein. It is stated that this flux may result from unbalance of a pair of switches (ignitrons or thyristors) in the primary circuit or from the action of the timer; the welding electrodes are connected to the secondary winding. The core may be an overlap type core with groups 1-15 of laminations, each group comprising a plurality of butt-jointed laminations and an outer lamination having an overlapped joint.
GB5649268A 1968-11-28 1968-11-28 Resistance welding apparatus Expired GB1293134A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5649268A GB1293134A (en) 1968-11-28 1968-11-28 Resistance welding apparatus
DE19691959366 DE1959366A1 (en) 1968-11-28 1969-11-26 Transformer cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5649268A GB1293134A (en) 1968-11-28 1968-11-28 Resistance welding apparatus

Publications (1)

Publication Number Publication Date
GB1293134A true GB1293134A (en) 1972-10-18

Family

ID=10476752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5649268A Expired GB1293134A (en) 1968-11-28 1968-11-28 Resistance welding apparatus

Country Status (2)

Country Link
DE (1) DE1959366A1 (en)
GB (1) GB1293134A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008008446A2 (en) * 2006-07-14 2008-01-17 Square D Company Electronic motor circuit protector
US7550939B2 (en) 2006-07-14 2009-06-23 William Davison Redundant instantaneous trip detection
US7592888B2 (en) 2006-07-14 2009-09-22 Jason Robert Colsch Low cost user adjustment, resistance to straying between positions, increased resistance to ESD, and consistent feel
US7683586B2 (en) 2006-07-14 2010-03-23 Davison William C Method and system of fault powered supply voltage regulation
US7697250B2 (en) 2006-07-14 2010-04-13 William Davison Switch-to-trip point translation
US7788055B2 (en) 2006-07-14 2010-08-31 Square D Company Method and system of calibrating sensing components in a circuit breaker system
US7791849B2 (en) 2006-07-14 2010-09-07 William Davison Redundant trip activation
US7859802B2 (en) 2006-07-14 2010-12-28 William Davison Burden resistor temperature compensation algorithm
US7869169B2 (en) 2006-07-14 2011-01-11 William Davison Method and system of current transformer output magnitude compensation in a circuit breaker system
US7869170B2 (en) 2006-07-14 2011-01-11 Susan Jean Walker Colsch Method and system for time synchronized trip algorithms for breaker self protection
US8154373B2 (en) 2006-07-14 2012-04-10 Schneider Electric USA, Inc. Circuit breaker-like apparatus with combination current transformer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008008446A2 (en) * 2006-07-14 2008-01-17 Square D Company Electronic motor circuit protector
WO2008008446A3 (en) * 2006-07-14 2008-05-02 Square D Co Electronic motor circuit protector
US7550939B2 (en) 2006-07-14 2009-06-23 William Davison Redundant instantaneous trip detection
US7592888B2 (en) 2006-07-14 2009-09-22 Jason Robert Colsch Low cost user adjustment, resistance to straying between positions, increased resistance to ESD, and consistent feel
US7683586B2 (en) 2006-07-14 2010-03-23 Davison William C Method and system of fault powered supply voltage regulation
US7697250B2 (en) 2006-07-14 2010-04-13 William Davison Switch-to-trip point translation
US7788055B2 (en) 2006-07-14 2010-08-31 Square D Company Method and system of calibrating sensing components in a circuit breaker system
US7791849B2 (en) 2006-07-14 2010-09-07 William Davison Redundant trip activation
US7859802B2 (en) 2006-07-14 2010-12-28 William Davison Burden resistor temperature compensation algorithm
US7869169B2 (en) 2006-07-14 2011-01-11 William Davison Method and system of current transformer output magnitude compensation in a circuit breaker system
US7869170B2 (en) 2006-07-14 2011-01-11 Susan Jean Walker Colsch Method and system for time synchronized trip algorithms for breaker self protection
US8154373B2 (en) 2006-07-14 2012-04-10 Schneider Electric USA, Inc. Circuit breaker-like apparatus with combination current transformer

Also Published As

Publication number Publication date
DE1959366A1 (en) 1970-09-03

Similar Documents

Publication Publication Date Title
GB1293134A (en) Resistance welding apparatus
GB1103712A (en) Direct current power supply
US2436925A (en) Electric regulating apparatus
IT970990B (en) ELECTRICAL DEVICE OF GENERATION AND REGULATION
GB998226A (en) A current limiting arrangement
GB1230830A (en)
GB907338A (en) A three-phase, high voltage step-up transformer for use with x-ray equipment
GB1217469A (en) Transformer power supply for microwave generators
GB1261088A (en) X-ray tube kilovoltage control system
GB1118537A (en) Improvements in current transformers having multi-turn primary windings
GB1261073A (en) Adjustable transformer apparatus
GB1230318A (en)
GB863403A (en) Improvements in or relating to interphase transformers
GB1172874A (en) Transformer Unit
US2910640A (en) Method and apparatus for welding
GB887081A (en) Improvements in and relating to laminated cores
GB1336966A (en) Transformer for electric arc welding
GB1072974A (en) Improvements in or relating to electric circuit arrangements including inductive elements
GB1351563A (en) Electrical energy conservation during testing of a prime-mover- electrical generator unit
GB1080638A (en) Single-phase transformer for electric arc welding
ES271408A1 (en) A speed adjustment system for an electric motor (Machine-translation by Google Translate, not legally binding)
SU121839A1 (en) Device for the protection of electrical installations
BE757370A (en) Electrical welding circuit
GB971764A (en) Pulse generation from a three-phase source
GB1007496A (en) Improvements relating to transformer tap-changing

Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees