US1021221A - Transformer. - Google Patents
Transformer. Download PDFInfo
- Publication number
- US1021221A US1021221A US42964308A US1908429643A US1021221A US 1021221 A US1021221 A US 1021221A US 42964308 A US42964308 A US 42964308A US 1908429643 A US1908429643 A US 1908429643A US 1021221 A US1021221 A US 1021221A
- Authority
- US
- United States
- Prior art keywords
- core
- coil
- movable
- magnetic
- transformer
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/12—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable coil, winding, or part thereof; having movable shield
Definitions
- Tllfrlw i ironsorners have con".- inonly been con. in the past with o slationory coil and a movable coil both influencing a magnetic core which is so arranged that there is o constant length oi path for the magnetic circuit. regardless of the position of the moving coil. This means that at fnlldood.
- fin object of n'y invention is to decrease his excessivc o loss which occurs during full-load, whim i 'irociicnlly ihe normal operating cond': ion for these 'l'rnnsforiners.
- Anollicr ohicc of my invention is to derQosc lhut porlio' of lhe magnetic circuit not rcquir-iwil 1 5 oi transformation, hut inscricd more girl c rcscloncci and rims lo obtain om of rho great- :idvanlogcs oi a's vsicm roosisting: of ii constant potential iransioruicr and scpzirzilc regulating winsmil-current rciictive-coil.
- refcrc icc may he had to the accompanying: drawing, wherein the single figure illusirnlcs in elevation an embodiment of my invcnl-ion.
- 1 is an E-shapcd magnetic core having three uprightlcgs and a bottom portion joining the rhrco legs.
- FIGS. 2 and 3 are coils surrounding the central log of the core, coil 2 being shown asv stationary, and coil 3 as movable in the well known fashion; ono of the coils being the primary and l hc othcr ihc secondary of the transformer.
- the movable coil 3 is fastened in the usual way to :i cord 4:, which is fastened to one of which has attached to it by another cord end of a lever 55, the oihcr end' counter-holancing the weighl of t e movable, coil 3 for the purposes well undcrslcod lav those skilled in the art.
- Attached to the movable coil 3, 1' have shown two magnetic members 7 and 8, which move between the of the core, and form a closed magnetic circuit around the inovable coil.
- These incrz no magnetic members 7 and 3 more Willi 'oovnlole coih and hencc, for a fol ion of the transformer when l in close proximity, the LUDPQL porl'ions of Zlie legs of the core shove lah sc iv/o l-if) ⁇ 2l3.
- incnilicrs will have SllnflSiil'ilililllF/ no mug, tic fiurr passing through ihen'n since the reluctance; of the closed circuit Foriu members i and 8 ⁇ villhcsomuchlc fl!
- a magnetic core In a. constant currenllrans'fm-merq a magnetic core. a sioi'ioniiry and a n'mmblc coil surrounding a portion of said corc and in inductive relation to each other so that the core forms o magnetic circiiii for ihc coils, and means for varying the reluctance of the magnetic circuil invcrscly with tho transformer load.
- a constant current transformer a. magnetic core 2i stalionm'y and a movable coil surrounding a portion of said core and in inductive lQlllllOl'l in each oihcr so that the core forms a mugnciic circuit for ihc coils, and means for varying longzl'h of l-JQ the magnetic circuit inversely with ihe transformer loco.
- a magnetic core In a constant current transformer, a magnetic core, a stationary and a movable coilsurroundin a portion of said core and in inductive re ation to each other so that the core forms a '1 etic circuit forthe coils, and means for ecreasmg the leakage flux of the movable coil for an increasing a load on the transformer.
- stationary coil a movable coil, a core and a movable magnetic member decreasing the length of the magnetic circuit for an increased transformer load.
- an E's-shaped core In a constant-current transformer, an E's-shaped core, a stationary coil surrounding v the central leg of said core, a movable coil 25. surrounding the central leg of the core, and
- movable magnetic members movable longitudinally between the legs of the core.
- E-shaped core, stationary and movable coils surrounding the central leg ofsaid core and magnetic members movable longitudinally between the legs of-the core closing the magnetic circuit around the movable coil.
- an E-shaped core In a constant-current transformer, an E-shaped core, a stationary and a movable coil surrounding the central leg of the core and magnetic members fastened to the movable coil closing the magnetic circuit between the legs of the core around the movable coil.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
Description
M. O. TROY.
TRANSFORMER. APPLICATION FILED APB.28, 1908.
Pafiented Mar. 26, 1912.
lnvenifor mcrfifm wQTroy a Mir": cs airs r in ii .Jilfllidfi 1 ii. iii ii MATTHEW? O. TRUE", OE SCHENEGTAIDY, NEW YGRK, ASSIGNOR T0 GENERAL ELECTRIC j GUEE'EPAIQYZ, A CORPQYFJATIGET NEW FL *8 TRANSF'DRIWIEE.
Specification of Letters Patent.
Application filed April 538, 1808. Serial No.
T0 aZZ who, it only concern: I
Be it known that l, lllAT'iHllW O. T1201,
21- cil'izcn of tho Uuiier States, residing at Schenccludy, county of Fichenectady, State of New York lnu'e invented. ccriain new and useful :lillplfii'iillllifi in Transform ers, of which the followin )ccilica'rion.
' My invcnii to transformers, and more purliculzi liuinsiori'ners which are used for consinnt ill 'lllililg-Clll'lill electric circuit and hi i ils object an improvement in tho conscruction 0i such trans formers. Tllfrlw i ironsorners have con".- inonly been con. in the past with o slationory coil and a movable coil both influencing a magnetic core which is so arranged that there is o constant length oi path for the magnetic circuit. regardless of the position of the moving coil. This means that at fnlldood. when lhc o coils are close together, the primary winding will have to nuignciize a portion oil the core longer than is required for influencing the secondary winding, and home, a greater core-loss than nccd'l'ul is lolicn 705* ll) irsnsformcr.
fin object of n'y invention is to decrease his excessivc o loss which occurs during full-load, whim i 'irociicnlly ihe normal operating cond': ion for these 'l'rnnsforiners.
Anollicr ohicc of my invention is to derQosc lhut porlio' of lhe magnetic circuit not rcquir-iwil 1 5 oi transformation, hut inscricd more girl c rcscloncci and rims lo obtain om of rho great- :idvanlogcs oi a's vsicm roosisting: of ii constant potential iransioruicr and scpzirzilc regulating winsmil-current rciictive-coil.
For a 'l urihcr undc'sianding of my invention, refcrc icc may he had to the accompanying: drawing, wherein the single figure illusirnlcs in elevation an embodiment of my invcnl-ion.
1 is an E-shapcd magnetic core having three uprightlcgs and a bottom portion joining the rhrco legs.
2 and 3 are coils surrounding the central log of the core, coil 2 being shown asv stationary, and coil 3 as movable in the well known fashion; ono of the coils being the primary and l hc othcr ihc secondary of the transformer. The movable coil 3 is fastened in the usual way to :i cord 4:, which is fastened to one of which has attached to it by another cord end of a lever 55, the oihcr end' counter-holancing the weighl of t e movable, coil 3 for the purposes well undcrslcod lav those skilled in the art. U
Attached to the movable coil 3, 1' have shown two magnetic members 7 and 8, which move between the of the core, and form a closed magnetic circuit around the inovable coil. These incrz no magnetic members 7 and 3 more Willi 'oovnlole coih and hencc, for a fol ion of the transformer when l in close proximity, the LUDPQL porl'ions of Zlie legs of the core shove lah sc iv/o l-if)\2l3. incnilicrs will have SllnflSiil'ilililllF/ no mug, tic fiurr passing through ihen'n since the reluctance; of the closed circuit Foriu members i and 8 \villhcsomuchlc fl! licrelucizmccof the shunt circuili which is j med or the upper core and ihe sin i will mean, then, that thcrc will he sulisiii lisilly no core-loss in that portion of ihe crunsforincr corc not subjccicrl to llic magrn lhc eflicicncv of lhe 'trra creased.- The portion oil lie n'uiguclic cirso call also, that is not rcqu for fransl'ormotion purposes, but which is nicrely' inserted to giro reaciancc is idlc and only consumes cnc gr whcn ii is rcqnircd do so.
'V' hile l ha e shown onc form in which my invcnlio; may he carried oul. i do not i i i. lo iliis form, but sccl-t in lhc appended clzi'n'is in cover all (hos!) forms in which my invention may he carried out. and which do not depart from ihe scope of my invenlion.
I What I claim as new. and desire lo secure by lieliers Polcni of the United linics. is,
1. In a. constant currenllrans'fm-merq a magnetic core. a sioi'ioniiry and a n'mmblc coil surrounding a portion of said corc and in inductive relation to each other so that the core forms o magnetic circiiii for ihc coils, and means for varying the reluctance of the magnetic circuil invcrscly with tho transformer load.
2. lo. a constant current transformer. a. magnetic core 2i stalionm'y and a movable coil surrounding a portion of said core and in inductive lQlllllOl'l in each oihcr so that the core forms a mugnciic circuit for ihc coils, and means for varying longzl'h of l-JQ the magnetic circuit inversely with ihe transformer loco.
3. In a constant current transformer, a magnetic core, a stationary and a movable coilsurroundin a portion of said core and in inductive re ation to each other so that the core forms a '1 etic circuit forthe coils, and means for ecreasmg the leakage flux of the movable coil for an increasing a load on the transformer.
, stationary coil, a movable coil, a core and a movable magnetic member decreasing the length of the magnetic circuit for an increased transformer load.
6. In a constant-current transformer, an E's-shaped core, a stationary coil surrounding v the central leg of said core, a movable coil 25. surrounding the central leg of the core, and
movable magnetic members movable longitudinally between the legs of the core.
7 In a constant-current transformer, an
E-shaped core, stationary and movable coils surrounding the central leg ofsaid core and magnetic members movable longitudinally between the legs of-the core closing the magnetic circuit around the movable coil.
8. In a constant-current transformer, an E-shaped core, a stationary and a movable coil surrounding the central leg of the core and magnetic members fastened to the movable coil closing the magnetic circuit between the legs of the core around the movable coil.
9. In aconstant-current transformer, an E-shaped core, a stationary and a movable coil surrounding the central leg of the core, magnetic members fastened to the movable coil closing the magnetic circuit between the legs of the core around the movable coil, and means for counter-balancing the weight gf the core and the movable magnetic memers. In witness whereof, I have hereunto set my hand this 27th day of April, 1908. I
MATTHEW U. TROY,
Witnesses:
BENJAMIN B. HULL, HELEN @nrono,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42964308A US1021221A (en) | 1908-04-28 | 1908-04-28 | Transformer. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42964308A US1021221A (en) | 1908-04-28 | 1908-04-28 | Transformer. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1021221A true US1021221A (en) | 1912-03-26 |
Family
ID=3089518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US42964308A Expired - Lifetime US1021221A (en) | 1908-04-28 | 1908-04-28 | Transformer. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1021221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT397890B (en) * | 1989-12-13 | 1994-07-25 | Alcatel Austria Ag | Trimmable (adjustable) power transformer |
-
1908
- 1908-04-28 US US42964308A patent/US1021221A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT397890B (en) * | 1989-12-13 | 1994-07-25 | Alcatel Austria Ag | Trimmable (adjustable) power transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1553983A (en) | Electrical coil | |
| US2406045A (en) | Inductance device | |
| US1021221A (en) | Transformer. | |
| US1779269A (en) | Transformer, choke coil and core therefor | |
| US1610867A (en) | Transformer | |
| US2253053A (en) | Conversion of single phase alternating electric currents to polyphase currents | |
| CA1076667A (en) | Variable flux transformer | |
| US3353132A (en) | Leakage flux suppressor windings for transformers | |
| US2329021A (en) | Electromagnetic system | |
| US2265700A (en) | Transformer | |
| US1953519A (en) | Current transformer | |
| US1698634A (en) | Electrical induction apparatus | |
| US2342084A (en) | Transformer tap-changing circuit | |
| US873036A (en) | Transformer. | |
| US1412782A (en) | Stationary induction apparatus | |
| US2078688A (en) | Variable voltage transformer | |
| US1694318A (en) | Electric induction apparatus | |
| US2121592A (en) | Constant regulation transformer | |
| US2595753A (en) | Equalizer winding for five-legged three-phase cores | |
| US2244386A (en) | Transformer | |
| US2735989A (en) | Variable inductance | |
| US1869125A (en) | Variable voltage transformer | |
| US1566792A (en) | Inductance device | |
| US740174A (en) | Means for varying the voltage ratio of transformers. | |
| US1380983A (en) | Core for electrical apparatus |