CN1182639C - Voltage converter for circuit breaker at high or mediate voltages - Google Patents
Voltage converter for circuit breaker at high or mediate voltages Download PDFInfo
- Publication number
- CN1182639C CN1182639C CNB981116884A CN98111688A CN1182639C CN 1182639 C CN1182639 C CN 1182639C CN B981116884 A CNB981116884 A CN B981116884A CN 98111688 A CN98111688 A CN 98111688A CN 1182639 C CN1182639 C CN 1182639C
- Authority
- CN
- China
- Prior art keywords
- voltage
- voltage transformer
- medium
- interface
- breaker
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0356—Mounting of monitoring devices, e.g. current transformers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
Abstract
The present invention provides a voltage transformer device for a medium- or high-voltage circuit-breaker especially for a gas insulation medium-voltage circuit-breaker, in which the voltage transformer device is arranged near a medium- or HV- interface. The voltage transformer device is formed by a series-circuit of two discrete resistances as a voltage divider (R1, R2) which, on the input side, is connected via a primary interface (PS) with an internal cone plug (KS) and contact terminal (KA), as well as, on the output side to pluggable measurement terminals (MO,M1,M2) via a secondary interface (SS). The voltage divider (R1, R2) is located in a corrosion-proof metal housing, fully surrounded by a solid insulation encapsulation (F1). The metal housing (MG) is rigidly connected to the measurement terminals (M0, M1) at zero potential. The device is for measurement of a circuit-breaker.
Description
Technical field
The present invention relates to a kind of medium-pressure or high pressure circuit breaker that is used for, especially a kind of voltage transformer of gas-insulated medium voltage breaker, voltage transformer wherein are arranged in the medium-pressure or high pressure interface range.
Background technology
More than shown in this voltage transformer be disclosed among the German patent application specification DE 3709943.Cable joint is wherein surrounded by an insulator, and there is an internal electrode its inside.A kind of implementation of capacitor voltage measurement mechanism is, an internal electrode and a conduction, be in a measurement electrode be set between the skin on the zero potential, utilize the voltage difference between this electrode measurement cable joint and the earthing potential.Accuracy to the measured value of this structure can not propose specific (special) requirements, because this voltage measuring apparatus can only show no-voltage or voltage status is arranged.
Except the capacitor voltage measurement mechanism, also have a kind of known inductance type voltage measuring apparatus, wherein for example used a kind of toroidal iron core coil around device housings.The electric pressure converter of transformer form can be connected with the medium voltage breaker plug-in type with cable joint is equally direct.
In addition, known also have the resistance divider of fixed seat structure and the resistance divider with high-voltage connection terminal of metallic packaging, and the voltage divider of this structure is arranged on the air chamber outside of gas isolated medium voltage breaker, adopts removable connection.High-voltage connection terminal wherein adopts the inner conical arrangement terminal of Deutsche industry norm (DIN) DIN 47636 the 4th part regulation.But the highest voltage that can only bear 24kV of this high-voltage connection terminal.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of medium-pressure or high pressure circuit breaker that is used for is provided, especially a kind of voltage transformer of gas-insulated medium voltage breaker, it is compared with known voltage transformer, higher withstand voltage properties is arranged, and structure simplifies greatly, and manufacturing cost reduces, and can also satisfy the safety standard about touch-safe current in this technology simultaneously fully.
Above-mentioned technical problem is by a kind of medium-pressure or high pressure circuit breaker that is used for, and especially a kind of voltage transformer of gas-insulated medium voltage breaker solves, and this voltage transformer is arranged in the medium-pressure or high pressure interface range, wherein:
1.1 described voltage transformer is to be connected in series by two individual resistors as voltage divider to realize that its input links to each other with contact terminal with the inner conical plug through an elementary interface, its output links to each other with the plug-in type measurement terminal through a secondary interface,
1.2 described voltage divider is installed in the corrosion resistant metal shell, and is surrounded by a kind of solid insulation encapsulating material fully in this metal shell,
1.3 described corrosion resistant metal shell is fixedlyed connected with the measurement contact of conducting zero potential.
Adopt two individual resistors that are connected in series to replace normally used condenser type or inductance type voltage transformer in this technology, made voltage transformer is simple in structure, cost is low, and it is positioned in the corrosion resistant metal shell that is in zero potential, has absolute touch-safe.
The input of described voltage divider links to each other with the inner conical plug that possesses contact terminal in elementary interface section, secondary interface at output partly contains the resistance leading-out end, and draw the plug-in type measurement terminal on the whole resistance that is connected in series, this structure patches from the outside on the primary conductor encapsulating shell in simple mode.Can on gas isolated medium voltage breaker, carry out measuring process at any time so need not special measure, and have no danger.Independently resistance designs according to the electrical load that may occur.
Essence of the present invention is, itself is that known inner conical plug system not only is used for common transformer type voltage transformer technology, also can be used for resistor-type voltage transformer technology with innovating.
The feature of a kind of favourable structure of the present invention is:
2.1 described voltage divider is installed in the commercially available shell, this shell conformance with standard DIN 47637 the 4th part, and have plug terminal.
So-called commercially available shell for example is the shell described in DE 4408818 C1, and it has the described plug-in connection device as DE3538193 C2.The special benefits of this structure is, voltage transformer is installed in the known metal shell with the connection of inner conical plug, and this shell only was used for the voltage lead-out wire on the outdoor binding post in the past, can utilize identical Connection Element to be contained on the resistance type voltage divider so need not structural change, and be integrated in the circuit breaker.This inner conical plug system also can use in circuit breaker inside neatly.
Description of drawings
The present invention is further illustrated for contrast accompanying drawing illustrated embodiment below.
What Fig. 1 represented is described voltage transformer and basic parts thereof.
Embodiment
Described voltage transformer comprises two individual resistors that are cascaded as voltage divider R1, R2, and this resistance is installed in metal shell MG inside.Seal with solid insulation encapsulating material F1 between voltage divider R1, R2 and the metal shell.Corrosion resistant metal shell MG has elementary interface PS, and this interface comprises the cone-shaped plug KS that has contact terminal KA.Also be provided with secondary interface SS on the metal shell MG in addition, this interface is provided with measurement terminal M0, M1, M2.As shown in the figure, measurement terminal M0 is in zero potential, and it not only is communicated with metal shell MG, and and measurement terminal M1 connection.By this measure, metal shell MG has enough touch-safes.
Measurement terminal M2 has constituted the resistance leading-out end of voltage divider R1, R2, produces a voltage difference on this terminal simultaneously, and this voltage difference is zero potential and is added in poor between the operating voltage on the circuit breaker.
In the present embodiment, described voltage transformer can be inserted on the outdoor terminal of circuit breaker as a cable connector, perhaps is inserted in the scope of bus-bar through a commercially available plug interface.
Claims (3)
1. voltage transformer that is used for the medium-pressure or high pressure circuit breaker, wherein this voltage transformer is arranged in the medium-pressure or high pressure interface range, it is characterized in that:
Described voltage transformer is to be connected in series by two individual resistors as voltage divider (R1, R2) to realize, its input links to each other with contact terminal (KA) with inner conical plug (KS) through an elementary interface (PS), its output links to each other with plug-in type measurement terminal (M0, M1, M2) through a secondary interface (SS)
Described voltage divider (R1, R2) is installed in the corrosion resistant metal shell (MG), and is surrounded by a kind of solid insulation encapsulating material (F1) fully in this metal shell (MG),
Described corrosion resistant metal shell (MG) is fixedlyed connected with the measurement contact (M0, M1) of conducting zero potential.
2. voltage transformer as claimed in claim 1 is characterized in that,
Described voltage divider (R1, R2) is installed in the shell, and this shell has plug terminal.
3. voltage transformer as claimed in claim 1 or 2 is characterized in that this voltage transformer is used to gas isolated medium voltage breaker.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997155887 DE19755887A1 (en) | 1997-12-05 | 1997-12-05 | Voltage transformer especially for gas-insulated medium voltage switch and control-gear |
| DE19755887.9 | 1997-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1226760A CN1226760A (en) | 1999-08-25 |
| CN1182639C true CN1182639C (en) | 2004-12-29 |
Family
ID=7852099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981116884A Expired - Fee Related CN1182639C (en) | 1997-12-05 | 1998-11-05 | Voltage converter for circuit breaker at high or mediate voltages |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1182639C (en) |
| DE (1) | DE19755887A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4080749B2 (en) * | 2002-01-07 | 2008-04-23 | 三菱電機株式会社 | Gas insulated electrical equipment transformer |
| NZ524719A (en) * | 2003-03-13 | 2004-06-25 | Canterprise Ltd | A portable high impedance resistive voltage divider device for measuring high voltages accurately |
| CN102082024B (en) * | 2010-11-09 | 2013-04-10 | 中国西电电气股份有限公司 | Vacuum treatment method of external-expander capacitive voltage transformer |
| CN102830257A (en) * | 2012-08-01 | 2012-12-19 | 江苏博斯特科技电力有限公司 | High-voltage resistor type voltage dividing device |
| EP2696206B1 (en) * | 2012-08-06 | 2023-11-01 | ABB Schweiz AG | Medium or high voltage arrangement with cable connection terminal |
| CN103513081B (en) * | 2012-10-15 | 2016-05-18 | 上海市计量测试技术研究院 | A kind of resistor-type impulse voltage divider of high accuracy fast-response |
| US9335348B2 (en) * | 2012-11-02 | 2016-05-10 | Thomas & Betts International, Inc. | Modular high voltage sensing unit |
| DE102013202868C5 (en) | 2013-02-21 | 2021-10-21 | Kries-Energietechnik Gmbh & Co.Kg | Fault and / or load detection device for a low or high voltage system |
| DE102014203447A1 (en) * | 2014-02-26 | 2015-08-27 | Kries Energietechnik Gmbh & Co. Kg | Measuring probe for high voltage measurement and high voltage measuring arrangement |
| EP2998747B1 (en) * | 2014-09-22 | 2017-03-08 | Siemens Aktiengesellschaft | Coaxial design for secondary unit |
| EP3223024B1 (en) | 2016-03-23 | 2018-11-14 | 3M Innovative Properties Company | Elastic sleeve for a power conductor |
| CN106383256A (en) * | 2016-11-08 | 2017-02-08 | 湖北正奥汽车附件集团有限公司 | Adhesive filling connector type resistance voltage divider for automotive wire harness |
-
1997
- 1997-12-05 DE DE1997155887 patent/DE19755887A1/en not_active Withdrawn
-
1998
- 1998-11-05 CN CNB981116884A patent/CN1182639C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE19755887A1 (en) | 1999-06-10 |
| CN1226760A (en) | 1999-08-25 |
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