CN101752799A - Medium-voltage electric distribution cell - Google Patents
Medium-voltage electric distribution cell Download PDFInfo
- Publication number
- CN101752799A CN101752799A CN200910261462.8A CN200910261462A CN101752799A CN 101752799 A CN101752799 A CN 101752799A CN 200910261462 A CN200910261462 A CN 200910261462A CN 101752799 A CN101752799 A CN 101752799A
- Authority
- CN
- China
- Prior art keywords
- parts
- circuit
- switchgear house
- electric current
- fixed contact
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
Landscapes
- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a medium-voltage electric distribution cell C, which can be matched between two parts of a circuit, such as a bus-bar and a current for executing the current flow between two parts, the current interruption between two parts, the voltage isolation between two parts and the grounding function of the part of the circuit. The electric distribution cell C is characterized in that the current flow, interruption, voltage isolation and grounding function are executed by at least one vacuum box A, and the cell C also comprises an additional separator (4) arranged in a grounding circuit (3), the separator can add an additional isolation gap I into the grounding circuit (3) at the current flow and current interruption position and eliminate the additional isolation gap I at the voltage isolation position of two parts when one of the parts is grounded. The box A comprises a first fixed contact (7) electrically connected to the bus-bar, a movable contact (8) electrically connected to the cable and a second fixed contact (9) electrically connected to the ground by a change-over switch (4).
Description
Technical field
The present invention relates to the medium-voltage distribution chamber, its design between two parts that are engaged in circuit to carry out respectively at the electric current between these two parts flow, the function of the ground connection of one of current interruptions, the voltage isolation between these two parts and described circuit part between these two parts.
Background technology
In known switchgear house, vacuum box is used to carry out switch and circuit breaker function, isolates (disconnection) or grounding function and utilize air or gas isolated device to be used for carrying out under most of occasions.
These functions can make up in a different manner to realize functional unit, carry out current interruptions and isolation and grounding function.
Like this, known, functional unit forms by the switchgear device with three positions of carrying out switch, isolating switch (disconnector), earthed switch function respectively, perhaps, functional unit switch-isolating switch by being combined with earthed switch forms, and perhaps the isolating switch of two positions comprising ground connection of functional unit by being combined with switch or circuit breaker forms.Also known, three devices that functional unit is carried out isolating switch, earthed switch and switching function respectively by combination form.
Summary of the invention
The purpose of this invention is to provide the medium-voltage distribution chamber, its feasible circuit breaker (switch) at least and isolating switch function can be carried out the compactedness to a certain degree that keep switchgear house simultaneously to the use of gas to eliminate by vacuum insulation technology.
For this purpose, the switchgear house that the purpose of this invention is to provide a kind of the above-mentioned type, this switchgear house is characterised in that, above-mentioned electric current flows, interruption and voltage isolation function are carried out in a vacuum, and it further comprises the extra separator that is arranged in the earthed circuit, described device be designed to electric current flow and the current interruptions position increases extra external series gap in earthed circuit and between described two parts in the voltage isolation position and when one of above-mentioned part is grounded, eliminate this extra external series gap.
According to special characteristic, above-mentioned grounding function is also carried out in a vacuum.
According to special characteristic, this switchgear house comprises the switch (perhaps circuit breaker) of three positions, be respectively that wherein electric current is in the position of flowing between two parts, wherein electric current is interrupted and segregate position of voltage and earthing position between two parts, this switch/circuit breaker is accommodated in the vacuum box.
According to special characteristic, this extra separator passes through in air, in gas, in oil or breaking technique is in a vacuum realized.
According to another feature, this box comprises housing, in this housing, be combined with the first that is electrically connected to foregoing circuit first fixed contact, be electrically connected to the second portion movable contact of foregoing circuit and as shielding or contact and second fixed contact electrical ground of floating.
According to another feature, described extra separator comprises can make the second fixed contact ground connection or earth-free switch.
According to another feature, the first of foregoing circuit is a bus-bar, and the foregoing circuit second portion is a cable.
According to another feature, second fixed contact is positioned at the substantial middle place of box.
According to another feature, this chamber comprises and is used for detecting the device that box leaks electricity.This make it possible to detect vacuum loss, can carry out the diagnosis of vacuum level or the loss of compactness that can diagnosis box.
According to another feature, these devices comprise and are used for continuous measurement the flow voltage of second fixed contact or the device of electric current.
Description of drawings
But other advantage of the present invention and feature will only become clearer with the detailed description of the accompanying drawing that provides of illustrative purpose from following reference, wherein:
Fig. 1 is the schematic diagram according to medium-voltage distribution of the present invention chamber;
Fig. 2-5 with the form of cross sectional view illustrate according to a particular embodiment of the invention be in make position that electric current wherein can flow respectively, the switchgear house of open position, isolated location and earthing position after disconnecting.
Embodiment
In Fig. 1-5, chamber C is illustrated according to medium-voltage distribution of the present invention, it designs and is arranged between bus-bar 1 and the cable 2 that (position of Fig. 1 a) or disconnect the back and guarantee current interruptions or voltage isolation (b), perhaps cable grounding (position c) to guarantee the flowing of electric current between these two parts.
This chamber C comprises the circuit 3 of vacuum box A and ground connection T, and this circuit 3 comprises air insulated switch (perhaps change over switch) 4.
This box A holds the circuit breaker 5 that can take three diverse locations, and these three positions are the operating position (as shown in Figure 2) that allows operating current to flow, open position (Fig. 3), isolated location (Fig. 4) and the earthing position (Fig. 5) after the electric current disconnection.
Change over switch 4 can be taked two positions (e among Fig. 1, f), just, wherein the tie point R of box is electrically grounded to the primary importance e of ground T and wherein inserts the position f of an extra external series gap I between this tie point R and ground T.
Shown in Fig. 2-5, above-mentioned box A comprises the housing 6 that is roughly cylindrical shape, this housing fills full vacuum and holds first fixed contact 7 that is electrically connected to bus-bar, the movable contact 8 that is electrically connected to electric current and be electrically connected to second fixed contact 9 of above-mentioned change over switch 4 via above-mentioned tie point R, and described change over switch can be grounding to above-mentioned tie point R ground T.
The operation of above-mentioned switchgear house is described below with reference to accompanying drawings.
In position as shown in Figure 2, perhaps operating position, box A is in closure so that operating current can flow.Change over switch 4 is shown in an open position.In position as shown in Figure 3, therefore first fixed contact 7 and movable contact 8 are separated and electric current flows is interrupted.The disconnection of the circuit that the conversion from position a to position b (Fig. 1) is corresponding relevant with current interruption.The effect of box A in these two positions is traditional.Second fixed contact 9 of box A inside is as the shielding of floating.This shielding that can float help opening circuit the stage dielectric strength and reduce the risk of dielectric breakdown.In Fig. 4, this chamber is in the position that is called the isolated location.The closure of change over switch 4 is carried out, thereby causes the ground connection of second fixed contact 9.As a result, in the electric field acute variation of box inside.Virtual obstacles (virtual barrier) after this prevents the directly electric arc between the contact.This box is then as converting isolation switch.Isolation features in the earthed switch raising box of make position.
In Fig. 5, movable contact 8 has contacted second fixed contact 9 of box A.This chamber is in earthing position then.Vacuum technique makes it possible to realize making capacity with reliable fashion.
Therefore, realized having the medium-voltage distribution chamber of simple short circuit and ground connection, thereby caused reducing of size, utilized vacuum technique simultaneously as much as possible by the present invention.
The present invention is not limited to naturally only with the description of illustrative purpose and the embodiment of example.
Like this, for example, the switchgear of carrying out the current interruptions in the box can be switch or circuit breaker.Similarly, replace being arranged in the same box, difference in functionality can be arranged in the different boxes, and a box is used for a function.
On the contrary, the present invention includes all technical equivalents, and if carry out the combination of equivalent then the present invention includes these combinations according to the said apparatus of spirit of the present invention.
Claims (10)
1. medium-voltage distribution chamber, it designs between two parts that are engaged in circuit to carry out respectively in the mobile function of the electric current between these two parts, current interruptions function between these two parts, one of the voltage isolation function between these two parts and the described part of described circuit grounding function, it is characterized in that, the above-mentioned electric current function (a) that flows, interruption and voltage isolation function (b) are carried out in a vacuum, and described switchgear house further comprises the extra separator (4) that is arranged in the earthed circuit (3), described extra separator be used for electric current flow and the current interruptions position at the extra external series gap (I) of earthed circuit (3) increase, and eliminating this extra external series gap (I) between described two parts during in the voltage isolation position and when (2) ground connection in above-mentioned two parts.
2. switchgear house as claimed in claim 1 is characterized in that, described grounding function (c) is carried out equally in a vacuum.
3. switchgear house as claimed in claim 1 or 2, it is characterized in that, this switchgear house comprises the switch (perhaps circuit breaker) (5) of three positions, these three positions are respectively mobile being interrupted and segregate position of voltage and earthing position of position, the electric current between wherein said two parts that the electric current between wherein said two parts (1 and 2) flows, and this switch/circuit breaker (5) is contained in the vacuum box (A).
4. each described switchgear house in the claim as described above is characterized in that, described extra separator (4) by in air, in gas, in oil or breaking technique in a vacuum realize.
5. switchgear house as claimed in claim 3, it is characterized in that, this box (A) comprises shell (6), be combined with in this shell (6) inside the first (1) that is electrically connected to foregoing circuit first fixed contact (7), be electrically connected to foregoing circuit second portion (2) movable contact (8) and as floating shielding or be used as contact and be electrically connected to second fixed contact (9) on ground (T).
6. switchgear house as claimed in claim 5 is characterized in that, described extra separator comprises change over switch (4), and this change over switch (4) makes that described second fixed contact (9) can ground connection or earth-free (T).
7. each described switchgear house in the claim as described above it is characterized in that the first of foregoing circuit is bus-bar (1), and the second portion of foregoing circuit is cable (2).
8. as claim 5 or 6 described switchgear houses, it is characterized in that described second fixed contact (9) is positioned at the substantial middle place of described box (A).
9. as claim 3 or 5 described switchgear houses, it is characterized in that this switchgear house comprises the leakage current that is used for detecting described box.
10. as claim 5 and 9 described switchgear houses, it is characterized in that these devices comprise that being used for continuous measurement flows through the voltage of described second fixed contact (9) or the device of electric current.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0807109A FR2940543A1 (en) | 2008-12-18 | 2008-12-18 | MEDIUM VOLTAGE POWER DISTRIBUTION CELL |
| FR0807109 | 2008-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101752799A true CN101752799A (en) | 2010-06-23 |
| CN101752799B CN101752799B (en) | 2015-01-21 |
Family
ID=40863748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910261462.8A Active CN101752799B (en) | 2008-12-18 | 2009-12-15 | Medium-voltage electric distribution cell |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2200060B1 (en) |
| CN (1) | CN101752799B (en) |
| AT (1) | ATE520138T1 (en) |
| ES (1) | ES2368610T3 (en) |
| FR (1) | FR2940543A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010053466A1 (en) * | 2010-11-30 | 2012-05-31 | Maschinenfabrik Reinhausen Gmbh | Step switch and vacuum interrupter for such a tap changer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL154369B (en) * | 1973-12-21 | 1977-08-15 | Hazemeijer Bv | ELECTRICAL HIGH VOLTAGE SWITCH WITH TWO SWITCHING RANKS CONNECTED IN SERIES. |
| US6144005A (en) * | 1997-07-23 | 2000-11-07 | Hitachi, Ltd. | Vacuum switch and a vacuum switchgear using the same |
| DE10030670C2 (en) * | 2000-06-23 | 2002-06-13 | Siemens Ag | Vacuum interrupter with two contact systems |
| JP2003308767A (en) * | 2002-04-12 | 2003-10-31 | Toshiba Corp | Vacuum switch |
-
2008
- 2008-12-18 FR FR0807109A patent/FR2940543A1/en active Pending
-
2009
- 2009-10-20 ES ES09354042T patent/ES2368610T3/en active Active
- 2009-10-20 AT AT09354042T patent/ATE520138T1/en not_active IP Right Cessation
- 2009-10-20 EP EP09354042A patent/EP2200060B1/en active Active
- 2009-12-15 CN CN200910261462.8A patent/CN101752799B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2200060A1 (en) | 2010-06-23 |
| ES2368610T3 (en) | 2011-11-18 |
| FR2940543A1 (en) | 2010-06-25 |
| EP2200060B1 (en) | 2011-08-10 |
| ATE520138T1 (en) | 2011-08-15 |
| CN101752799B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4162664B2 (en) | Vacuum switchgear | |
| RU2501136C2 (en) | Medium voltage switchgear cell | |
| JP2007014086A5 (en) | ||
| EP2565897A1 (en) | Switchgear and switchgear operating method | |
| KR20120080137A (en) | Switching device unit and switch gear | |
| WO2014112135A1 (en) | Gas-insulated switch gear | |
| US9472926B2 (en) | Gas-insulated switchgear arrangement | |
| CN102714401B (en) | Middle pressure air insulated switch equipment | |
| US9355792B2 (en) | Gas insulated switchgear | |
| CN105633849A (en) | SF6 insulating vacuum boundary switch cabinet | |
| US9588151B2 (en) | Voltage and/or current sensing device for low-, medium- or high voltage switching devices | |
| US8462485B2 (en) | Switchgear for underground electric power distribution line | |
| US20130201607A1 (en) | Pressurised gas-insulated multi-phase control panel | |
| CN204190252U (en) | SF6 insulate vacuum demarcation switch cabinet | |
| CN101752799B (en) | Medium-voltage electric distribution cell | |
| CN201417898Y (en) | Outdoor high voltage cable branch box | |
| CN103117189A (en) | Solid encapsulated pole and solid insulated ring network cabinet | |
| CN103001167A (en) | Solid insulation bus connecting structure for connection of switchgear with client side | |
| CN203406512U (en) | Breaker chamber with bus isolating function and bus measuring function | |
| JPH1189027A (en) | Switch gear | |
| NO331767B1 (en) | Middelsspennings-Switchgear | |
| KR101831850B1 (en) | 25.8KV bypass built-in variable load break switch | |
| CN202513071U (en) | Four-position switch of composite apparatus | |
| CN203013638U (en) | Embedded type electrode for GIS circuit breaker of medium-voltage gas insulated ring main unit | |
| KR20110002263U (en) | Earthing apparatus for gas insulated switchgear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |