CN1227698C - Differential electric protective equipment - Google Patents
Differential electric protective equipment Download PDFInfo
- Publication number
- CN1227698C CN1227698C CN 01122419 CN01122419A CN1227698C CN 1227698 C CN1227698 C CN 1227698C CN 01122419 CN01122419 CN 01122419 CN 01122419 A CN01122419 A CN 01122419A CN 1227698 C CN1227698 C CN 1227698C
- Authority
- CN
- China
- Prior art keywords
- parts
- separator
- ring
- shaped core
- differential
- 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
- 230000001681 protective effect Effects 0.000 title claims description 18
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 5
- 210000000056 organ Anatomy 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
Abstract
The electrical protection differential switching mechanism has an isolating container with a mechanism of opening and closing of electrical contacts and a differential switching unit. The apparatus has a separator reinforcing the isolation between the primary conductors and moving in rotation on an electronic card support section with a rotating section freeing the conductor end connection from the apparatus connection.
Description
Technical field
The present invention relates to a kind of differential electric protective equipment.
Background technology
A kind of differential electric protective equipment of the prior art; it comprises unlatching and the closing organ that is received within least two electric contacts in the insulation shell and is designed to and drives and be mechanically connected to the differential Disjoncteur that described mechanism is taken in and causes above-mentioned contact to be opened when wanting in the protected circuit insulation fault to take place by tripgear; differential Disjoncteur is installed on the data processing strutting piece such as (circuit) plate; and comprise a ring-shaped core; the leading body that is formed by the conductor of wanting protected electric installation passes from it, and described leading body is fixed on the output contact pad of protection equipment via one of its end.
Summary of the invention
The objective of the invention is to make the fixing operation of leading body on the output contact pad of protection equipment easier.
For this purpose; the electric protective equipment that the purpose of this invention is to provide a kind of previous description type; comprise unlatching and closing organ and a differential Disjoncteur of being received within least two electric contacts in the insulation shell; this differential Disjoncteur is designed to be driven and be mechanically connected in the described mechanism by a tripgear; cause above-mentioned contact to be opened when in wanting protected circuit, insulation fault taking place; described differential Disjoncteur is installed on the data processing strutting piece; and comprise a ring-shaped core; the leading body that is formed by the conductor of wanting protected electric installation passes ring-shaped core; described leading body is fixed on the connection pads of described protection equipment via one of its end; it is characterized in that; described protection equipment comprises a separator; it comprises first parts and second parts; first parts are designed to hold at least a portion of the leading body that extends to the ring-shaped core outside and they are separated; second parts are designed to hold leading body and pass the part of ring-shaped core and they are separated; wherein; described second parts match with the inwall in the hole of ring-shaped core, guide described data processing strutting piece around described second parts rotation.
This protection equipment is characterised in that; it comprises separator; this separator is designed to be able to strengthen the insulation between the above-mentioned different leading body; but also data processing strutting piece that can the above-mentioned ring-shaped core of guide support is around the leading body rotation; with a free end, and can carry out the fixing operation of the corresponding connection pads of these ends and protection equipment near described leading body.
According to a particular embodiment of the invention, above-mentioned separator comprises first parts and second parts, and first Component Design is separated these conductors at least for receiving the leading body that extends to the ring-shaped core outside on the part of these conductor length; Second parts pass the hole of ring-shaped core, receive part that conductor passes ring-shaped core so that they are separated, and carry out above-mentioned guiding rotation.
In accordance with a specific feature of the present invention,, second parts of above-mentioned separator pass the hole of ring-shaped core successively and are arranged on hole in the circuit board of ring-shaped core.
According to another feature, second parts of separator cooperate with the housing of ring-shaped core, to carry out above-mentioned guiding.
According to another feature, second parts of separator comprise at least one partition wall, and described wall comprises at least one vertical free edge, and it is designed to cooperate with the wall of the ring-shaped core housing in the hole of looping iron core, to carry out above-mentioned guiding rotation.
According to certain embodiments, be under the situation of two electrode types at protection equipment, separator comprises an independent partition wall, and this partition wall comprises the parts of part circular on an one longitudinal edge, and these parts are designed to cooperate with the hole wall of ring-shaped core housing.
According to another feature, this protection equipment comprises second separator, and it is designed to realize the insulation on the length that is not covered by first separator between leading body.
Description of drawings
Other advantages of the present invention and feature will be clearer from following detailed description with reference to accompanying drawing, and this accompanying drawing only provides for the example purpose, and wherein:
Fig. 1 is a perspective view, shows support according to the printed circuit board (PCB) of the differential system of differential electric protective equipment of the present invention and the leading body that is associated with described protection equipment;
Fig. 2 is a perspective view, shows the conductor separator in the differential electric protective equipment that is designed to according to the present invention to pack into;
Fig. 3 and Fig. 4 are the perspective views of looking along two rightabouts, show the assembly that has been equipped with behind two separators, and wherein one of these separators are separator shown in Figure 2;
Fig. 5 is a perspective view, shows according to the present invention before the end with leading body is welded to the welding operation of connection pads, and printed circuit board (PCB) is around the rotation of leading body;
Fig. 6 is a perspective view, shows after welding operation, once more with the equipped operation that puts in place of circuit board;
Fig. 7 is a perspective view, shows said modules is assemblied in operation on the base; And
Fig. 8 is a perspective view, shows a lid is contained in operation on the assembly.
Embodiment
Among Fig. 1, can see that printed circuit board (PCB) 1 supported design becomes to be connected to the differential Disjoncteur 2 of the electric differential trip unit D of four electrodes (Fig. 8) on the circuit breaker, described circuit breaker is designed to be placed in the electric power system, protection electric power system when the earth leakage fault.Printed circuit board (PCB) 1 also comprises the electronic processing circuit that has accessory power supply and supports the unlatching and the closing organ 3 (Fig. 8) of breaker contact point.An assembly like this is installed in the compartment 4 of base 5 of differential unit insulation shell B, and this differential unit also is designed to put the lead-out terminal 6 of protection equipment.
In the drawings, can see that differential Disjoncteur 2 comprises addition transformer 7 and electromagnetism tripping relay 8, has adopted known mode in this.The addition transformer has constituted the differential current detector and has been equipped with the magnetic circuit of ring-shaped core 9 forms, and this ring-shaped core has centre bore 10, is used for being passed through by the leading body 11 that the power line of wanting protected low-voltage power supply system forms.This ring-shaped core 9 is fixed on the above-mentioned circuit board 1, and described circuit board 1 also comprises the hole 0 in the face of the hole 10 of ring-shaped core 9, and also is designed to allow leading body 11 to pass therethrough.Secondary coil (invisible) is wrapped on the ring-shaped core 9 and is electrically connected on the measuring resistance and electromagnetism tripping relay 8 of circuit (not shown), and this relay disconnects actuator by short circuit and forms.
Leading body 11 is designed to be connected respectively on the connection pads 23 of output splicing ear 6 of protection equipment via one of its end 11a, and is connected respectively to and puts on the lead-out terminal of circuit breaker A (not shown) via its opposite end 11b.
Thereby, at work, when in leading body, electric fault taking place, set up a differential fault-signal at the terminal place of secondary coil.When this signal surpassed predetermined threshold values, relay drove circuit breaker trip mechanism, the release of final controlling element locking, and the contact is opened.
In Fig. 2, can see the element that is called cable spacer 12, it is designed to receive leading body, so that they are separated, therefore strengthens the insulation of 11 of described conductors.Separator 12 comprises first parts 13 of ring-shaped core 9 outsides, it is designed to receive a part of length of the leading body 11 that stretches out from ring-shaped core 9, also comprise second parts 14 that are basically perpendicular to first parts 13, it is designed to pass ring-shaped core 9, so that receive the part that conductor passes ring-shaped core 9.These first parts 13 comprise plate 15, and this plate has the partition wall 16 that extends perpendicular to described plate 15, places leading body 11 between partition wall 16.These second parts 14 comprise four partition walls 17 that are perpendicular to one another and are connected with each other by a common edge b.The width 1 of wall is such: vertical free edge 17a of wall 17 cooperates with ring-shaped core 9 inwalls of the centre bore 10 that constitutes described ring-shaped core 9, around described second parts 14, and guide ring-shaped core 9 and circuit board 1 around the mode of leading body 11 rotations thus.In this drawing, the plate 15 that also can see first parts 13 also comprises two arms 19,20 of extending perpendicular to described plate, is arranged on the end of these arms and is designed to and match described separator 12 is fixed on the clamping device 27 on the described housing with the housing of ring-shaped core 9.
In Fig. 3 and Fig. 4, separator 12 is fitted on the leading body 11 with second separator 21, described second separator 21 be designed to receive leading body 11 folding 90 ° end 22, this end 22 is designed to be electrically connected on other electric equipments.
In Fig. 3,4 and 6, the existence of printed circuit board (PCB) 1 has stoped from top and respectively to have held 11a near leading body 11 as can be seen.Therefore, when being welded on conductor 11 on the connection pads 23, circuit board 1 and ring-shaped core 9 can also promptly pivot (Fig. 5) around leading body 11 around the free edge 17a of the partition wall 17 of separator 12 clockwise by the present invention, so just can be near these pads 23.After welding operation, circuit board is seated (Fig. 6) by the edge once more with previous opposite direction around leading body 11 rotations.
In Fig. 7, can see that after the welding operation of leading body 11 is finished by circuit board 1 be fixed on the assembly that the various elements on the circuit board 1 form, and leading body 11 and separator 12,21 are inserted in the compartment 24 of protecting plant bottom case 25.Then, lid 26 is placed on the opening of protection equipment compartment 24, as shown in Figure 8.
Thus; finished differential electric equipment by the present invention; wherein; strengthened the insulation of conductor by the ring-shaped core outside and inboard separator; first separator that cooperates with the housing of ring-shaped core allows circuit board around the leading body rotation, and the operation that leading body is welded on the protection equipment connection pads is more prone to.
Nature, the embodiment that describes and illustrate above the present invention is not limited to, these embodiment only provide with the purpose of example.
Therefore, the present invention is applied to differential electric protective equipment in general sense, for example the differential unit that links to each other with circuit breaker or comprise the switch or the circuit breaker of integrated differential function.
No matter what electrodes (two electrodes, four electrodes etc.) are arranged, the present invention can be applied in these equipment.
When protection equipment was two electrode types, separator can comprise an independent partition wall, and this partition wall comprises the parts of part circular on its longitudinal edge, and it is designed to match with the hole wall of ring-shaped core housing.
The present invention can expand to all technical equivalents thing and combinations thereof that comprise described device, as long as these technical equivalents things and combination spirit according to the present invention thereof are finished.
Claims (10)
1. differential electric protective equipment; comprise unlatching and closing organ and a differential Disjoncteur of being received within least two electric contacts in the insulation shell; this differential Disjoncteur is designed to be driven and be mechanically connected in the described mechanism by a tripgear; cause above-mentioned contact to be opened when in wanting protected circuit, insulation fault taking place; described differential Disjoncteur is installed on the data processing strutting piece; and comprise a ring-shaped core; the leading body that is formed by the conductor of wanting protected electric installation passes ring-shaped core; described leading body is fixed on the connection pads of described protection equipment via one of its end
It is characterized in that; described protection equipment comprises a separator (12); it comprises first parts (13) and second parts (14); first parts (13) are designed to hold at least a portion of the leading body (11) that extends to ring-shaped core (9) outside and they are separated; second parts (14) are designed to hold leading body (11) and pass the part of ring-shaped core (9) and they are separated; wherein; described second parts (14) match with the inwall in the hole (10) of ring-shaped core (9), guide described data processing strutting piece (1) around described second parts (14) rotation.
2. differential electric protective equipment as claimed in claim 1; it is characterized in that second parts (14) of above-mentioned separator (12) pass the hole (10) of ring-shaped core (9) successively and are arranged on hole (0) within the circuit board (1) in the hole (10) of ring-shaped core (9).
3. differential electric protective equipment as claimed in claim 1 is characterized in that, second parts (14) of separator (12) extend perpendicular to first parts (13) of separator (12).
4. differential electric protective equipment as claimed in claim 1; it is characterized in that; second parts (14) of separator (12) comprise at least one partition wall (17); described wall comprises at least one vertical free edge (17a); it is designed to match with the inwall in the hole (10) of looping iron core (9), is rotated guiding.
5. differential electric protective equipment as claimed in claim 1; it is characterized in that; described protection equipment is four electrode type; separator (12) comprises four from common edge (b) partition wall that vertically stretches out adjacent one another are (17); and each partition wall comprises a free edge (17a), and it is designed to cooperate with the inwall in the hole (10) of looping iron core (9).
6. differential electric protective equipment as claimed in claim 1; it is characterized in that; described protection equipment is two electrode type; described second parts (14) comprise an independent partition wall (17); vertical free edge that this partition wall matches with the inwall in the hole of ring-shaped core is the circular shape of a part.
7. differential electric protective equipment as claimed in claim 1 is characterized in that, above-mentioned separator (12) comprises and is used for described separator (12) is clamped to device on the housing of ring-shaped core (9).
8. differential electric protective equipment as claimed in claim 1 is characterized in that, described device comprises one second separator (21), and it is designed to realize the insulation on the length that is not covered by first separator (12) between leading body (11).
9. as each described differential electric protective equipment in the above-mentioned claim, it is characterized in that the said fixing operation is welding operation.
10. as each described differential electric protective equipment among the above-mentioned claim 1-8, it is characterized in that described protection equipment is differential unit, it is designed to link to each other with circuit breaker.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0009214A FR2811805B1 (en) | 2000-07-13 | 2000-07-13 | DIFFERENTIAL ELECTRICAL PROTECTION APPARATUS |
| FR0009214 | 2000-07-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1333543A CN1333543A (en) | 2002-01-30 |
| CN1227698C true CN1227698C (en) | 2005-11-16 |
Family
ID=8852478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01122419 Expired - Fee Related CN1227698C (en) | 2000-07-13 | 2001-07-03 | Differential electric protective equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1227698C (en) |
| FR (1) | FR2811805B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4893358B2 (en) * | 2007-02-19 | 2012-03-07 | 富士電機機器制御株式会社 | Earth leakage trip device for earth leakage breaker |
| US7800468B2 (en) * | 2007-03-28 | 2010-09-21 | Eaton Corporation | Electrical switching apparatus, and accessory module and strain relief mechanism therefor |
| FR3029350B1 (en) * | 2014-12-01 | 2016-12-23 | Hager-Electro Sas | DEVICE FOR DIFFERENTIAL PROTECTION |
| CN105185664A (en) * | 2015-08-05 | 2015-12-23 | 浙江凯发电气股份有限公司 | Connecting device of residual-current circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701335B1 (en) * | 1993-02-09 | 1995-04-14 | Merlin Gerin | Differential protection block with testable functional sub-assembly. |
| FR2752479B1 (en) * | 1996-08-13 | 1998-09-25 | Schneider Electric Sa | ELECTRONIC DIFFERENTIAL CIRCUIT BREAKER |
-
2000
- 2000-07-13 FR FR0009214A patent/FR2811805B1/en not_active Expired - Fee Related
-
2001
- 2001-07-03 CN CN 01122419 patent/CN1227698C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1333543A (en) | 2002-01-30 |
| FR2811805B1 (en) | 2002-08-30 |
| FR2811805A1 (en) | 2002-01-18 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20200703 |