CN1302074A - Electronic trip unit stalled with rated value plug-in unit of circuit break - Google Patents
Electronic trip unit stalled with rated value plug-in unit of circuit break Download PDFInfo
- Publication number
- CN1302074A CN1302074A CN00137520.2A CN00137520A CN1302074A CN 1302074 A CN1302074 A CN 1302074A CN 00137520 A CN00137520 A CN 00137520A CN 1302074 A CN1302074 A CN 1302074A
- Authority
- CN
- China
- Prior art keywords
- circuit
- unit
- breaker
- rated value
- electronic trip
- 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.)
- Pending
Links
- 230000004224 protection Effects 0.000 claims abstract description 26
- 230000001012 protector Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 239000011469 building brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7409—Interchangeable elements
Landscapes
- Breakers (AREA)
- Protection Of Generators And Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
A circuit breaker is rendered more versatile by providing an electronic trip unit having more than one algorithm embedded in the software thereof to function as either a line protector or a motor protector. The rating plugs of the invention may either be switchable between line and motor protection or the rating plugs may simply include a particular jumper thus enabling the circuit breaker to be converted from line to motor or motor to line based upon the rating plug selected. Whether the rating plug is switchable or the non-switchable jumper-type rating plugs of the invention are being employed the electronic trip unit and current transformer need not be changed in order to change the function of the circuit breaker between line protection and motor protection.
Description
The present invention relates to the electric power distribution system technical field.More specifically, the present invention relates to be easy to the circuit-breaker between route protection and motor protection function, changed.
Circuit-breaker is used to: during overcurrent condition that near the short circuit in for example by equipment or it causes this equipment is protected.Circuit brake will disconnect when overcurrent condition occurring, to cause that wherein contact separates to stop electric current.The disconnection of circuit breaker has multiple mode, and the computerized system that it comprises magnetic field, temperature and is commonly referred to electronic trip unit, this unit comprise that the software of operating dedicated algorithms is to pick up the indivedual undesirable current status of survey.When meeting this state, electronic trip unit causes that circuit breaker disconnects.Can there be number of different types by the device of circuit-breaker protection and circuit-breaker itself is splendid for the function of the hope of these devices.As an example, can design and make the effect that one type circuit-breaker plays line protective devices, and design and the circuit-breaker of making another kind of type play the effect of motor protecting device.The electronic trip unit that is used for every kind of these circuit-breaker is different and every kind of unit uses different software and algorithm.In addition, current transformer is changed with trip unit usually.In prior art early, need different circuit-breakers to be used for various dissimilar functions and be used for various circuit breaker rated value.In order to reduce the component number of backup, known manner is the multiple different rated values that can be connected in single circuit-breaker and electronic trip unit to be set plug-in unit is set, and need not dismantle the entire circuit circuit breaker so that change the rated value of circuit-breaker.For their these rated values of required purposes plug-in unit being set can fine work and can be not only fast but also easily change rated value in the circuit-breaker that need be used.But prior art still needs to use diverse circuit-breaker to be used for route protection function and motor protection function.For specialized circuitry is changed over motor protection from route protection, need to change the entire circuit circuit breaker or need behind the dismounting circuit-breaker, change electronic trip unit and current transformer.
Circuit-breaker of the present invention comprises a contact arm that can be tripped by electronic trip unit, and this electronic trip unit can be connected with contact arm in operation.Electronic trip unit preferably includes at least two independently selectable tripping operation algorithms and a rated value that be used for being connected with described electronic trip unit, that be provided with a switch is provided with plug-in unit, or comprising a jumper, its allows to make " scene " apace between at least two algorithms that are used for local function and selects.
Fig. 1 is a perspective view of circuit-breaker of the present invention; And
Fig. 2 is the disintegration figure of circuit-breaker part internal part of the present invention, is used to illustrate the relative position of the parts that advantage of the present invention can be provided.
With reference to Fig. 1, a perspective view of its expression circuit-breaker 10 of the present invention.This circuit breaker 10 comprises a shell support 12 and a cap 14, and the two each all is traditional.A contact arm (not shown) is positioned in this circuit-breaker 10.Also can see a switch knob 16 in the figure, it is that those skilled in the art are known.In assembly area 18, this circuit-breaker 10 provides electricity and mechanical being connected for electronic trip unit, Current Transformer Assembly and rated value are provided with plug-in unit.These will be discussed by Fig. 2 below.Configuration shown in this Fig. 1 is that those skilled in the art are familiar with.
In order to be expressly understood the present invention, each in a plurality of traditional parts is equal to.These parts be there is no need to go through, because it whenever is that those skilled in the art are known.
With reference to Fig. 2, traditional current transformer support 20 is loaded with current transformer 22 (express three among the figure, but also be preferred layout for four of the present invention).Each current transformer 22 is provided with a load buss, is used to make circuit-breaker to be connected to required electrical connections (not shown).Current transformer support 20 and current transformer 22 are received within the assembly area 18, as those of ordinary skill is known in the art.For the purpose of complete, comprise the conventional button operation tripping operation assembly of parts 26,28,30 and 32 shown in the figure.Electronic trip unit 34 is installed on the pin 36 of support 20 in the present invention.The proprietary physical property of this electronic trip unit 34 is well known in the art, because wherein employed all hardware is traditional.But the software in this electronic trip unit 34 is different from prior art, because entire circuit circuit breaker 10 of the present invention is easy to be converted to from the circuit-breaker of route protection the circuit-breaker of motor protection.Therefore, this electronic trip unit 34 (ETU) comprises two algorithms at least, and one of them is used for motor protection function, and another is used for the route protection function.Therefore, this circuit-breaker 10 can be carried out arbitrary function, and only needs " telling " to carry out which function.
Refer again to Fig. 2, a rated value is provided with plug-in unit 40 and comprises that one preferably has the electronic building brick 42 of two switch 44a and 44b.Each switch preferably includes a button 46, so that easy operating switch 44a and 44b.Plug-in unit 40 also comprises housing 48, and structurally similar with prior art for additional switch.The rated value of prior art is provided with plug-in unit and has used a switch, is used for the determining of circuit breaker rated value (or some situation have two switches, one of them is that earth fault disconnects); The present invention is provided with two switches, and one of them switch is used for electing at two algorithms of electronic trip unit 34, and with definite its function (route protection or electric motor protecting), and wherein another switch is used to be provided with the required rated value of this circuit-breaker.Rated value be provided with switch preferably for route protection and motor protection respectively be provided with from 0.4 * to fixing 32 ranks of rated value Ict of 1 * circuit breaker.For every kind of protection of route protection and motor protection, these 32 ranks are by (0.4 * 16 ranks to 0.63 * Ict) and (16 ranks of 0.625 to 1 * Ict) are formed at 100% place of Ic at 63% big place of Ic.Rated value at 63% and 100% place can be changed on a switch, and 16 positions can be changed on another switch.Because every kind of protection for route protection and motor protection can obtain 32 ranks, thus be appreciated that to be provided with and can obtain 64 values of setting in the plug-in unit altogether at rated value of the present invention, and need not dismantle it.Be further appreciated that the circuit breaker load current value In by the setting of rated value plug-in unit will follow In＜Ict.This rated value is provided with plug-in unit can be connected to electronic trip unit by the aperture in the electronic trip unit housing 52 50.Rated value is provided with plug-in unit 40 and can 54 protections of plug-in unit lid are set and enter by rated value, at this rated value of assembled state the plug-in unit lid is set and matches with the lid 14 of circuit-breaker 10.Because rated value is provided with plug-in unit 40 and can be touched, so the function of very simple and convenient ground change-over circuit circuit breaker is arranged.The present invention also can reduce the spare unit of manufactory's necessity, does line protector or motor protector because single circuit breaker and trip unit can be applicable to easily.
In another embodiment of the present invention, this rated value is provided with plug-in unit 40 can adopt jumper without switch, not expression ad hoc among the figure.Rated value at jumper is provided with in the application of plug-in unit, when operating current or the rated current value of setting wish to be changed, unloads rated value and plug-in unit is set and loads onto another plug-in unit.This embodiment of the present invention has simplified the function conversion more, because it has avoided the dismounting and the replacing of electronic trip unit and current transformer consuming time.
Though be the present invention have been made description, those skilled in the art will recognize that can make various changes and each parts under the situation that does not depart from the scope of the invention can be substituted by its equivalent elements with reference to preferred embodiment.In addition, under the situation that does not depart from base region of the present invention, can make many modifications to adapt to the content of concrete situation or the present invention design.Therefore, should be, the present invention be limited in as implementing best mode that the present invention considered on the disclosed specific embodiment, and the present invention will comprise and drop on all embodiment that set up in claims scope.
Claims (10)
1. the circuit-breaker of a convertible function (10) comprising:
One electronic trip unit (34), it has at least two independently selectable tripping operation algorithms; And
One rated value with switch (44) is provided with plug-in unit (40), is used for being connected with described electronic trip unit (34), and described switch (44) can elect between each of described two algorithms at least.
2. the circuit-breaker of a convertible function (10) comprising:
One electronic trip unit (34), it has at least two independently selectable tripping operation algorithms; And
One rated value is provided with plug-in unit (40) and has a jumper, is used for selecting of described at least two algorithms.
3. a circuit-breaker (10) comprising:
One contact arm;
One electronic trip unit (34) that in operation, can be connected with contact arm;
One electronic trip unit (34) has at least two independently selectable tripping operation algorithms; And
One rated value with switch (44) is provided with plug-in unit (40), is used for being connected with described electronic trip unit (34), and described switch (44) can elect between each of described two algorithms at least.
4. one is used for the replaceable tripping operation of circuit-breaker (10) and the system that rated value is provided with, and comprising:
One electronic trip unit (34), it has at least two independently selectable tripping operation algorithms; And
One rated value with switch (44) is provided with plug-in unit (40), is used for being connected with described electronic trip unit (34), and described switch (44) can elect between each of described two algorithms at least.
5. the circuit-breaker of convertible function according to claim 1 (10) is characterized in that, described at least two algorithms comprise the algorithm and the algorithm that is used for motor protection function that are used for the route protection function.
6. the circuit-breaker of convertible function according to claim 1 (10) is characterized in that, described rated value be provided with plug-in unit comprise two switches (44a, 44b).
7. the circuit-breaker of convertible function according to claim 6 (10) is characterized in that, described two switches (44a, 44b) set by the rated value that is controlled at selection between described at least two algorithms and described circuit-breaker (10).
8. the circuit-breaker of convertible function according to claim 7 (10) is characterized in that, the rated value of described circuit-breaker (10) selects to be provided with 32 rated value ranks.
9. the circuit-breaker of convertible function according to claim 2 (10) is characterized in that, described rated value is provided with plug-in unit (40) and comprises a switch (44), is used for electing in 32 rated value ranks of described circuit-breaker.
10. a circuit-breaker (10) comprising:
One contact arm;
One electronic trip unit (34) that in operation, can be connected with contact arm;
One is arranged on the software program in the described electronic trip unit (34), and described software program has at least two independent programs;
One electronic trip unit (34) has at least two independently selectable tripping operation algorithms; And
One rated value is provided with plug-in unit (40) and has a jumper, is used for selecting of described at least two algorithms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47323899A | 1999-12-27 | 1999-12-27 | |
| US09/473,238 | 1999-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1302074A true CN1302074A (en) | 2001-07-04 |
Family
ID=23878731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00137520.2A Pending CN1302074A (en) | 1999-12-27 | 2000-12-27 | Electronic trip unit stalled with rated value plug-in unit of circuit break |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1113476A3 (en) |
| CN (1) | CN1302074A (en) |
| HU (1) | HUP0004986A3 (en) |
| MX (1) | MXPA00012699A (en) |
| PL (1) | PL344655A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621195A (en) * | 2008-06-30 | 2010-01-06 | 伊顿公司 | Settings emulator for a circuit interrupter trip unit and system including the same |
| CN1751422B (en) * | 2003-02-17 | 2010-10-06 | 沃纳电工系统两合股份有限公司 | Circuit breaker device |
| CN101552127B (en) * | 2008-01-10 | 2012-11-28 | 施耐德电器工业公司 | Mutual inductor unit with twice through electronic tripping device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8116054B2 (en) * | 2006-12-29 | 2012-02-14 | General Electric Company | Universal rating plug for electronic trip unit |
| PL2079091T3 (en) * | 2008-01-10 | 2014-07-31 | Schneider Electric Ind Sas | Voltage trigger case for a circuit breaker, voltage trigger device and assembly method |
| FR2926392B1 (en) * | 2008-01-10 | 2009-12-18 | Schneider Electric Ind Sas | ELECTRONIC TRIGGER HOUSING FOR CIRCUIT BREAKER, ELECTRONIC TRIGGERING DEVICE, AND ASSEMBLY METHOD |
| US8139336B2 (en) * | 2008-12-24 | 2012-03-20 | General Electric Company | Field configurable rating plug using communication and control signal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793595A (en) * | 1993-08-11 | 1998-08-11 | Schweitzer Engineering Laboratories, Inc. | Multi-application relay for power systems |
| GB2288498B (en) * | 1994-04-13 | 1998-07-01 | Gen Electric | Circuit breaker |
| US5877925A (en) * | 1996-12-17 | 1999-03-02 | General Electric Company | Ground fault-rating plug for molded case circuit breakers |
-
2000
- 2000-12-18 MX MXPA00012699A patent/MXPA00012699A/en unknown
- 2000-12-19 PL PL00344655A patent/PL344655A1/en not_active Application Discontinuation
- 2000-12-20 HU HU0004986A patent/HUP0004986A3/en unknown
- 2000-12-21 EP EP00311530A patent/EP1113476A3/en not_active Withdrawn
- 2000-12-27 CN CN00137520.2A patent/CN1302074A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1751422B (en) * | 2003-02-17 | 2010-10-06 | 沃纳电工系统两合股份有限公司 | Circuit breaker device |
| CN101552127B (en) * | 2008-01-10 | 2012-11-28 | 施耐德电器工业公司 | Mutual inductor unit with twice through electronic tripping device |
| CN101621195A (en) * | 2008-06-30 | 2010-01-06 | 伊顿公司 | Settings emulator for a circuit interrupter trip unit and system including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| HU0004986D0 (en) | 2001-02-28 |
| HUP0004986A2 (en) | 2001-07-30 |
| EP1113476A3 (en) | 2003-03-05 |
| MXPA00012699A (en) | 2003-04-25 |
| HUP0004986A3 (en) | 2003-05-28 |
| PL344655A1 (en) | 2001-07-02 |
| EP1113476A2 (en) | 2001-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2907846B2 (en) | Method of using ground fault current protection device and ground fault trip device | |
| US5657193A (en) | Electronic control module for motor controller units | |
| EP3577675B1 (en) | Single-stage circuit breaker | |
| CN1302074A (en) | Electronic trip unit stalled with rated value plug-in unit of circuit break | |
| CN100524562C (en) | Switching protective device comprising fuses | |
| US6778370B1 (en) | Adaptive recloser/sectionalizer | |
| CN101604599A (en) | The current path that is used for circuit breaker is arranged | |
| US11984707B2 (en) | Busbar adapter with automatic switch | |
| CA1325656C (en) | Electrical switching device with cover interlock | |
| AU712637B2 (en) | Connector for consumer networks | |
| KR840001584B1 (en) | Wireless emergency power interrupting system for multibranch circuits | |
| US9053888B2 (en) | Tie bar for molded case circuit breaker and method of assembly | |
| CN101295607B (en) | Trip indicator member, and limiter and electrical switching apparatus including a plurality of trip indicator members | |
| CN209843646U (en) | Circuit breaker with over-voltage and under-voltage protection assembly | |
| WO2002054432A1 (en) | Supporting base for a circuit breaker | |
| US7492563B2 (en) | Low-voltage circuit breaker comprising an interface unit | |
| KR200262224Y1 (en) | Preventing structure for burn a secondary cable of three-phase ground transformer | |
| JP2002171616A (en) | Transformer control panel | |
| US20070183102A1 (en) | Protective device for a consumber branch | |
| EP1344238B1 (en) | Conducting element for shunting an electric power supply | |
| JP2677866B2 (en) | Load protector | |
| JP2024011299A (en) | dc circuit | |
| CN2162729Y (en) | Null line breaking protection device for three-phase four-way power supply system | |
| KR100423887B1 (en) | Receptacle | |
| KR100479438B1 (en) | Air circuit breakers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |