EP0654803B1 - Induktiver elektrischer Wandler - Google Patents
Induktiver elektrischer Wandler Download PDFInfo
- Publication number
- EP0654803B1 EP0654803B1 EP94116686A EP94116686A EP0654803B1 EP 0654803 B1 EP0654803 B1 EP 0654803B1 EP 94116686 A EP94116686 A EP 94116686A EP 94116686 A EP94116686 A EP 94116686A EP 0654803 B1 EP0654803 B1 EP 0654803B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- voltage
- coil
- primary coil
- coils
- 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
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 description 30
- 238000010276 construction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 230000009969 flowable effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- -1 Nickel-zinc cobalt-iron oxides Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
Definitions
- the invention relates to an inductive electrical Voltage converter according to the preamble of the first claim.
- a voltage converter of this type is from CH-A-240 528 known.
- This version requires due to the application an electrically conductive magnetic core an insulation layer between the core and the primary and secondary coils whose Thickness must be selected according to the high voltage to be measured got to.
- the magnetic circuit is not closed, so that this transducer has a high magnetic leakage flux, the necessary to electric smog and high excitation currents leads.
- the use of an also determines the overall arrangement covering hood additional air gaps compared to the Windings with the risk of glow discharges in them.
- the hood must also have an open end End plate are provided.
- the invention is based, with one Voltage converter according to the preamble of the first claim To take measures through which a simple structure Reduction of the construction volume and a high mechanical as well electrical stability is achieved.
- the outer legs of the core parts enclose the Coils at least over part of their circumference and can be designed as a potted core.
- the invention is based on the sketches of a Embodiment explained in more detail.
- An inductive electrical converter which is preferred for voltage measurement in medium-voltage networks is suitable, has one for AC operation suitable soft magnetic core 1, the one Primary winding 2 and a secondary winding 3 assigned are.
- the perpendicular or perpendicular to the grounded Mounting surface of the primary winding is at Voltage transformers to the one to be measured High voltage and on the other hand at ground potential turned on while the secondary winding on Low voltage signal for measuring or control purposes.
- the magnetic core 1 from one though magnetically well-conductive magnetic material, but one very low electrical conductivity so high has electrical resistance. It is suitable for this in particular a ferrite based in particular on Nickel-zinc cobalt-iron oxides is built up.
- the magnetic core 1 consists of continuous same magnetic material that has a low electrical Has conductivity.
- the vertical or perpendicular to the grounded mounting surface or Base 7 standing primary coil this Voltage converter like a Chamber coil built, in which the winding wire in a bobbin 4 divided into individual chambers is wrapped up.
- the individual chambers are in axial direction of the primary coil 2 side by side, the Winding wire from a coil end 5 initially in an axially first terminal chamber of the coil former 4 is wrapped.
- With sufficient filling of the first Chamber becomes the winding wire to the next second Chamber led and after their sufficient wrapping continue from chamber to chamber until the primary winding assigned last chamber of the bobbin with the required number of turns is provided.
- the Potential distribution in the primary winding thus increases essentially step-by-step from high voltage upper winding end 5 to the lower to ground potential laying end of winding 6 over the axial length.
- the magnetic core which acts like electrical insulating material
- the lower, uninsulated one will not Base 7 of the magnetic core 1 applied ground potential dragged into the area of the upper winding end. Rather, the magnetic core acts over its entire length as electrical insulator, so that additional Isolation measures can be largely minimized.
- the secondary winding 3 which is from the same magnetic core 1 is included.
- the secondary winding is there adjacent to the winding connection 6 to be connected to ground arranged so that any intermediate electrical Insulating layer 8 only to the voltage potential of the Secondary winding needs to be coordinated.
- the magnetic core according to FIGS. 1 to 2 consists of two with their open sides abutting and in their Shape E-shaped core parts, the middle leg 1.13 Immerse centrally in the primary or secondary winding 2,3 and the outer legs 1.11, 1.12 these windings 2.3 enclose at least part of their circumference. Should in contrast to the embodiment according to FIG. 2 a full one Enclosure of the windings 2,3 take place, then for the Core parts used pot cores.
- the voids between the Core 1 and the windings 2,3 and also the outside free surfaces of these parts with flowable, curing insulating material 9 tight and bubble-free or cast around.
- the base 7 can be without Insulation layer remain.
- the outer insulating layer 9 can at the same time with circumferential, radially outwards directed ribs 10 are provided, which the Insulating section between one in the upper end 11 of the Poured insulating layer, with the upper winding end 5 connected connecting element 12 and the base 7th extend.
- the outer insulating layer 9 can in addition Provide a terminal box 13 in the area of their jacket be of the necessary terminals for the Secondary winding 3 and possibly for the earth connection 6 Primary winding 2 takes.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
Claims (2)
- Induktiver elektrischer Spannungswandler für Mittelspannung mit einer Primärspule (2), die nach Art einer Kammerspule ausgebildet ist mit, im Betrieb, stufig über die axiale Spulenlänge abfallendem Spannungspotential von dem an Hochspannung gelegten Primärspulenende bis zu dem an Massepotential gelegten Primärspulenende, mit einer Sekundärspule (3), die in der axialen Verlängerung der hochspannungsführenden Primärspule (2) liegt und galvanisch von der Primärspule (2) getrennt ist und mit einem weichmagnetischen Kern (1), der die Primärspule (2) mit der Sekundärspule (3) magnetisch koppelt, wobei die Primärspule (2) an dem der Sekundärspule (3) benachbarten Ende an Massepotential zu schalten ist,
dadurch gekennzeichnet,
daß der Kern (1) aus zwei mit ihren offenen Seiten aneinander anstoßenden im Querschnitt E-förmigen Kernteilen und insgesamt aus einem magnetisch leitenden Material mit hohem elektrischem Widerstand besteht, daß die Mittelschenkel (1.13) der Kernteile zentral in die Primär- und die Sekundärspule (2, 3) eintauchen und die Außenschenkel (1.11; 1.12) diese Spulen (2, 3) über einen Teil ihres Umfangs umschließen, und daß der Kern (1) und die Spulen (2, 3) zumindest im Mantelflächenbereich und am hochspannungsseitigen Kernteil mit fließfähigem, aushärtendem Isoliermaterial (9) beschichtet sind. - Spannungswandler nach Anspruch 1,
dadurch gekennzeichnet,
daß der Kern (1) im Bereich der Spulen (2, 3) mit fließfähigem, aushärtendem Isoliermaterial ausgegossen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4340020 | 1993-11-24 | ||
DE4340020A DE4340020A1 (de) | 1993-11-24 | 1993-11-24 | Induktiver elektrischer Wandler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0654803A1 EP0654803A1 (de) | 1995-05-24 |
EP0654803B1 true EP0654803B1 (de) | 1998-01-07 |
Family
ID=6503316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94116686A Expired - Lifetime EP0654803B1 (de) | 1993-11-24 | 1994-10-22 | Induktiver elektrischer Wandler |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0654803B1 (de) |
DE (2) | DE4340020A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103282982A (zh) * | 2011-01-05 | 2013-09-04 | Abb技术有限公司 | 变压器绕组 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103558440B (zh) * | 2013-10-22 | 2016-03-02 | 江苏靖江互感器厂有限公司 | 一种智能化电子式电压互感器 |
CN104157437B (zh) * | 2014-08-07 | 2017-02-15 | 正泰电气股份有限公司 | 一种容性阻抗环氧树脂浇注绝缘电磁式电压互感器 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280418C (de) * | ||||
GB141232A (en) * | 1919-06-05 | 1920-04-15 | Vickers Ltd | Improvements in or relating to electric transformers |
CH240528A (de) | 1944-01-05 | 1945-12-31 | Isaak Dr Goldstein | Transformator, insbesondere Spannungswandler, mit offenem Eisenkern. |
DE1003849B (de) * | 1953-12-12 | 1957-03-07 | Philips Nv | Transformator fuer hohe, insbesondere impulsartige Sekundaerspannung |
DE1674433U (de) * | 1954-01-25 | 1954-04-01 | Friedrich Raupach | Einleiter-stromwandler, insbesondere fuer niederspannung. |
US3138742A (en) * | 1962-02-13 | 1964-06-23 | Jr Edmund O Schweitzer | Means for measuring current flow in and voltage of a high voltage alternating current conductor |
DE2348397B2 (de) * | 1973-09-24 | 1979-01-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Induktiver Spannungswandler |
DE2554143A1 (de) * | 1975-11-28 | 1977-06-02 | Siemens Ag | Spannungswandler fuer hohe spannungen |
DE3218823C2 (de) * | 1982-04-22 | 1984-06-20 | LGZ Landis & Gyr Zug AG, Zug | Meßwandleranordnung mit zwei Magnetkernen |
SU1488887A1 (ru) * | 1987-10-30 | 1989-06-23 | Ki Polt I | Электромагнитный трансформатор напряжения |
DE3803846A1 (de) * | 1988-02-09 | 1989-08-17 | Bernd Dipl Ing Sommer | Hochspannungs-prueftransformator mit isolierten kernsegmenten |
FR2638277A1 (fr) * | 1988-10-21 | 1990-04-27 | Orega Electro Mecanique | Transformateur de puissance a echauffement reduit |
DE3913558A1 (de) * | 1989-04-25 | 1990-11-08 | Schroff Gmbh | Ferrittransformator mit mindestens einer primaeren und einer sekundaeren wicklung |
-
1993
- 1993-11-24 DE DE4340020A patent/DE4340020A1/de not_active Withdrawn
-
1994
- 1994-10-22 DE DE59404946T patent/DE59404946D1/de not_active Expired - Fee Related
- 1994-10-22 EP EP94116686A patent/EP0654803B1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103282982A (zh) * | 2011-01-05 | 2013-09-04 | Abb技术有限公司 | 变压器绕组 |
CN103282982B (zh) * | 2011-01-05 | 2016-03-30 | Abb技术有限公司 | 变压器绕组 |
Also Published As
Publication number | Publication date |
---|---|
EP0654803A1 (de) | 1995-05-24 |
DE59404946D1 (de) | 1998-02-12 |
DE4340020A1 (de) | 1995-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1613674A1 (de) | Elektrostatische Abschirmung fuer elektrotechnische Geraete | |
EP0654803B1 (de) | Induktiver elektrischer Wandler | |
DE2512369C2 (de) | Elektrischer Generator | |
DE3029295A1 (de) | Elektrischer widerstand | |
DE2457797A1 (de) | Als strom- und/oder spannungswandler geeigneter wandler | |
DE1513870A1 (de) | Hochspannungstransformator | |
EP0025951B1 (de) | Einphasentransformator mit in Giessharz vergossenen Wicklungen | |
EP0653767B1 (de) | Induktiver elektrischer Wandler für Mittelspannung | |
DE1293334B (de) | Eisenkernlose Hoechstspannungs-Nebenschlussdrossel | |
DE2843608C2 (de) | Transformator, insbesondere Spannungswandler oder Prüftransformator | |
DE2554143A1 (de) | Spannungswandler fuer hohe spannungen | |
DE678296C (de) | Kombinierter Strom- und Spannungswandler | |
DE2154398A1 (de) | Spannungstransformator | |
EP1183696B1 (de) | Kapazitiv gesteuerte hochspannungswicklung | |
DE3636938C2 (de) | ||
DE69917439T2 (de) | Anordnung zur unterdrückung von windungstransienten | |
DE731897C (de) | Hochspannungstrockentransformator, insbesondere Spannungswandler | |
EP0014418B1 (de) | Wicklung für einen luftgekühlten Trockentransformator | |
DE1003346B (de) | Hochspannungstransformator mit einpolig auf Kernpotential liegender doppelt-konzentrischer, lagenweiser Wicklung | |
AT225282B (de) | Induktiver, vorzugsweise in den Linienzug der vollständig metallgekapselten und geerdeten Hochspannungsanlage eingebauter Hochspannungswandler | |
AT269277B (de) | Hochspannungs-Mehrphasensynchronmaschine | |
AT121927B (de) | Hochspannungstransformator, insbesondere Spannungsmeßwandler. | |
DE598052C (de) | Hochspannungstransformator, insbesondere Spannungsmesswandler | |
AT91739B (de) | Isolationsanordnung für Hochspannung führende Wicklungen, insbesondere von Transformatoren. | |
DE69500539T2 (de) | Zündspule |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19951117 |
|
17Q | First examination report despatched |
Effective date: 19960110 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980107 |
|
ITF | It: translation for a ep patent filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59404946 Country of ref document: DE Date of ref document: 19980212 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980407 |
|
ET | Fr: translation filed | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19980107 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19991018 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19991027 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19991228 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010629 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20010501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010703 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051022 |