WO2007137535A1 - Checking device for a switchgear cabinet with an input terminal block - Google Patents
Checking device for a switchgear cabinet with an input terminal block Download PDFInfo
- Publication number
- WO2007137535A1 WO2007137535A1 PCT/DE2006/000944 DE2006000944W WO2007137535A1 WO 2007137535 A1 WO2007137535 A1 WO 2007137535A1 DE 2006000944 W DE2006000944 W DE 2006000944W WO 2007137535 A1 WO2007137535 A1 WO 2007137535A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- test
- input terminal
- contact
- circuit breaker
- cabinet
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Definitions
- Test device for a control cabinet with an input terminal block
- the invention relates to a test device for a control cabinet comprising a cabinet mounted on the input terminal block with several individual terminals.
- the devices used for monitoring and controlling electrical equipment in switchgear and / or power plants are checked during commissioning and also during any required maintenance on their functioning.
- these devices can be protective devices that are housed in a control cabinet.
- test switches or test blocks are used by means of which a test device can be connected to the devices arranged and to be checked in the control cabinet. These test switches or test blocks are connected by means of a separate wiring to the circuits inside the cabinet. The test switches or test blocks as well as their connection wiring are an additional expense. In addition, the inspection of the internal circuits and equipment is only performed from the points at which the test switches or the test blocks are connected.
- Each individual terminal of the input terminal block of the test device contains a) an input terminal contact for connecting a device or electrical connection conductor arranged outside the cabinet, b) a cabinet connection contact for connecting one inside the cabinet c) a first terminal test contact connected to the input terminal contact, d) a second terminal test contact connected to the cabinet terminal contact, and e) a circuit breaker arranged between the input terminal contact and the first terminal test contact on the one hand and the cabinet terminal contact and the second terminal test contact on the other hand.
- the test device according to the invention is characterized in that the input terminal block allows both the connection of required during normal operation cabinet internal and barrier components, such as protection devices, transducers, trip coils and the like, as well as the connection of a tester.
- the input terminal block thus has a double function.
- the additional expense for separate devices, such as test switches or test blocks, as well as for their extra wiring is eliminated, so that the test device according to the invention can be made cheaper.
- a complete check of the cabinet contents is possible as the relevant terminal test contacts to which the tester can be connected are located directly at the electrical input of the cabinet. All circuits and all devices within the control cabinet are detected and checked for errors.
- circuit breaker Also advantageous is a mechanically operable design of the circuit breaker. This is very safe and robust. There is also no dependence on the concern of an electrical supply voltage.
- a test plug which can be plugged onto the input terminal block and brings the input terminal block in the plugged state into a test state. This allows a particularly simple and secure connection of a tester to the input terminal block.
- test plug is also designed for the mechanical actuation of the circuit breaker as well as for the mechanical and electrical contacting of the first and second terminal test contacts.
- the test plug then fulfills several functions at the same time.
- At least one of the individual terminals is designed as a circuit breaker terminal for connecting a circuit breaker, and the test plug is designed so that when you plug the test plug on the input terminal block first the circuit breaker of the circuit breaker terminal is opened. This will cause a false trip of the circuit-breaker is safely prevented if the control cabinet: is connected to a test device for checking by means of the test plug.
- test plug is designed so that when plugging the test plug on the input terminal block after opening the circuit breaker of the circuit breaker terminal, the first terminal test contacts the current transformer terminals are shorted , This prevents unwanted damage to the CT due to disconnection of the circuit connected to the CT.
- test plug is also designed so that when plugging the test plug on the input terminal block after opening the circuit breaker of the circuit breaker terminal and after shorting the first terminal test contacts the current transformer terminals all disconnected disconnectors are opened. This switching sequence prevents unwanted influences on the equipment externally connected to the control cabinet and allows a safe transition to the test mode.
- the input terminal block is arranged on a front side of the control cabinet.
- This increases accessibility and facilitates the connection of a tester.
- the input terminal block which is normally arranged on the rear of the control cabinet, can in particular be arranged laterally next to a pivoting frame of the control cabinet on the front side.
- a free space with a Width of, for example, up to 30 cm for the installation of the input terminal block available.
- FIG. 1 shows an embodiment of a test device with an input terminal block comprising a cabinet, a plug-on test plug and a tester
- FIG. 2 shows an embodiment of a cabinet with a
- FIG 3 shows an embodiment of a plug-in on the input terminal block of the cabinet according to FIG 2 test plug and a tester connected thereto.
- test device 1 shows an embodiment of a test device 1 is shown in a schematic representation. It serves to check a control cabinet 2 in which at least one protective device 4 is accommodated for monitoring an electrical supply network 3.
- control cabinet 2 contains an input terminal block. 5
- the input terminal block 5 has a plurality of individual terminals, of which in the embodiment shown in FIG 1, a part as a current transformer terminals 6 and 7 and another part is designed as a circuit breaker terminal 8. Each of these individual terminals has as main contacts an input terminal contact 9 and a cabinet terminal contact 10, which are each designed as screw contacts.
- the input terminal contacts 9 of the current transformer terminals 6 are connected to arranged outside the cabinet 2 current transformer 11, which detect the current flow in electrical conductors Ll, L2 and L3 of the electrical supply network 3.
- the input terminal contacts 9 of the current transformer terminals 7 are connected to an external star point circuit 12. In principle, instead of this star point circuit 12, a serial connection to another monitoring or control device, e.g. be provided on a arranged in another cabinet protection device.
- the input terminal contact 9 of the circuit breaker terminal 8 is connected to a likewise arranged outside of the cabinet 2 trip coil 13 of a circuit breaker 14.
- the cabinet connection contact 10 of the individual terminals are connected by means of a cabinet wiring 15 to the known protection device 4.
- the input terminal block 5 has a dual function. In addition to the above-described connection of the components required for normal operation, it also fulfills a test function. It is therefore also part of the test device 1, which also contains a test plug 16 which can be plugged onto the input terminal block 5 and a test device 17 which can be connected to the test plug 16.
- Each of the individual terminals also comprises an input-side terminal test contact 18 in the form of a contact socket, a cabinet-side terminal test contact 19 likewise in the form of a contact socket and a mechanically actuatable disconnect switch.
- ter 20 which is arranged between the input terminal contact 9 and the cabinet terminal contact 10.
- the input terminal contacts 9 are each connected to the input-side terminal test contact 18 of the associated individual terminal and the cabinet connection contacts 10 are each connected to the cabinet-side terminal test contact 19 of the associated individual terminal.
- the input terminal contact 9 and terminal test contact 18 of a single terminal are electrically connected in parallel, as are the cabinet terminal contact 10 and the terminal test contact 19 of a single terminal.
- the test plug 16 has input-side plug contacts 21 and cabinet-side plug contacts 22 in each contact pin form, the contacts in the plugged state in the input-side terminal test contacts 18 and the cabinet-side terminal test contacts 19, so that in each case an electrical contact is formed.
- the test plug 16 can be detachably attached to the terminal block 5.
- the plugging direction is indicated in FIG. 1 by the directional arrow 23.
- the test plug 16 is designed so that it first opens the circuit breaker 20 of the circuit breaker terminal 8 when plugging, then the current transformer terminals 6 and 7 shorted on the input side and finally all previously closed circuit breaker 20 opens. In the second
- Stepping short-circuit connections, the input-side terminal test contacts 18 and thus ultimately the current transformer 11 are connected in the same manner as inside the cabinet 2.
- the test plug 16 is a speaking wiring between the input-side plug contacts 21 is provided.
- the aforementioned three-stage switching and contacting sequence is important. It ensures that the power switch 14 does not accidentally receive a switching command during the attachment of the test plug 16.
- the short-circuit connections made in the second step ensure that the circuits to which the current transformers 11 are connected are never interrupted. Otherwise, the current transformers 11 could be damaged. Only in the third step, the final separation of input and cabinet side for the duration of the test or as long as the strigStecker 16 plugged on.
- FIG. 2 shows a further exemplary embodiment of a control cabinet 24 with an input terminal block 25, which also has a test function.
- a protective device 26 is arranged, which is connected to the cabinet connection contacts 10 of the input terminal block 25.
- the input terminal block 25 is connected to voltage transducers not shown in detail in FIG. 2 and to three tripping coils 13, which are likewise not shown in more detail in FIG.
- the input terminal block 25 has, similar to the input terminal block 5 shown in FIG 1, a total of eight current transformer terminals 6 and 7. However, he has four circuit breaker terminals 8 and four voltage converter terminals 27. In addition, four more, in the embodiment of FIG 2 unused Reserve terminals 28 are provided, which can be used for example for reporting purposes. Otherwise, the structure and the operation of the input terminal block 25 are similar to the input terminal block 5. Per single terminal also an input-side terminal test contact 18, a cabinet-side terminal test contact 19 and a circuit breaker 20 are provided.
- FIG. 3 an embodiment of a test plug 29 which can be plugged onto the input terminal block 25 and a tester 30 which can be connected thereto is shown. Together with the input terminal block 25, they form a test device for the switchgear cabinet 24 according to FIG. 2.
- the test plug 29 and the input terminal block 25 cooperate in the same manner as described in connection with FIG. First, the circuit breaker 20 of the circuit breaker terminals 8 are opened, then the current transformer terminals 6 and 7 shorted on the input side and last opened the hitherto still closed circuit breaker 20. Since voltage transformers can also be operated at idle without problems, no wiring between the input-side plug contacts 21 is provided in the strigStecker 29 unlike the current transformer 11 for the voltage converter, which is an image of the cabinet-internal wiring of the voltage converter.
- the input terminals 5 and 25 allow a complete inspection of all disposed within the cabinet 2 and 24 components, including the cabinet wiring 15 and the protective devices 4 and 26. Due to their dual function otherwise required beauticianen can be saved. This eliminates the wiring effort for these foiprüfkomponenten. LIST OF REFERENCE NUMBERS
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2006/000944 WO2007137535A1 (en) | 2006-05-26 | 2006-05-26 | Checking device for a switchgear cabinet with an input terminal block |
DE112006003910T DE112006003910A5 (en) | 2006-05-26 | 2006-05-26 | Test device for a control cabinet with an input terminal block |
CN2006800547182A CN101449172B (en) | 2006-05-26 | 2006-05-26 | A detection device for a switch cabinet with an input terminal module |
HK09107439.5A HK1127643A1 (en) | 2006-05-26 | 2009-08-13 | Checking device for a switchgear cabinet with an input terminal block |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2006/000944 WO2007137535A1 (en) | 2006-05-26 | 2006-05-26 | Checking device for a switchgear cabinet with an input terminal block |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007137535A1 true WO2007137535A1 (en) | 2007-12-06 |
Family
ID=37719199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/000944 WO2007137535A1 (en) | 2006-05-26 | 2006-05-26 | Checking device for a switchgear cabinet with an input terminal block |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN101449172B (en) |
DE (1) | DE112006003910A5 (en) |
HK (1) | HK1127643A1 (en) |
WO (1) | WO2007137535A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112557706A (en) * | 2020-11-27 | 2021-03-26 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110456113B (en) * | 2019-09-18 | 2021-10-08 | 云南电网有限责任公司电力科学研究院 | Plug-in current intrinsic safety terminal |
CN113629514A (en) * | 2021-09-06 | 2021-11-09 | 上海电气泰雷兹交通自动化系统有限公司 | Inverse switch cabinet |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT130088B (en) * | 1928-12-13 | 1932-10-25 | Heinrich Duetzmann | Series distribution and test terminal system. |
DE601908C (en) * | 1931-12-06 | 1934-08-27 | Stotz Kontakt Gmbh | Test clamp with two metal parts designed as line connectors, which can be connected to one another by a lockable separator |
DE1213030B (en) * | 1961-07-25 | 1966-03-24 | Siemens Ag | Contact device equipped with several sets of contacts, preferably blade contact parts, in particular for connection terminals of protective devices |
DE2345327A1 (en) * | 1973-09-07 | 1975-03-20 | Siemens Ag | Test arrangement for continuously working equipment - uses fixed point connector strip accepting PWB adaptor for test gear |
DE7717019U1 (en) * | 1977-05-28 | 1977-09-08 | C. A. Weidmueller Kg, 4930 Detmold | Series disconnect terminal |
DE3233255A1 (en) * | 1982-09-08 | 1984-03-08 | Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg | Electronic connecting terminal, especially a switching-system row terminal |
EP0424817A1 (en) * | 1989-10-25 | 1991-05-02 | Comat Ag | Essentially cubic pluggable element or device |
EP0521284A2 (en) * | 1991-07-02 | 1993-01-07 | Weidmüller Interface GmbH & Co. | Serial clip-on terminal with plugable module |
US20050250376A1 (en) * | 2004-05-04 | 2005-11-10 | Hubert Ostmeier | Interface test system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY137683A (en) * | 1991-11-18 | 2009-02-27 | Hitachi Ltd | Switchboard |
CN100359619C (en) * | 2005-10-28 | 2008-01-02 | 常熟开关制造有限公司(原常熟开关厂) | Position state signal collecting and transmitting apparatus |
-
2006
- 2006-05-26 DE DE112006003910T patent/DE112006003910A5/en not_active Withdrawn
- 2006-05-26 CN CN2006800547182A patent/CN101449172B/en not_active Expired - Fee Related
- 2006-05-26 WO PCT/DE2006/000944 patent/WO2007137535A1/en active Application Filing
-
2009
- 2009-08-13 HK HK09107439.5A patent/HK1127643A1/en not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT130088B (en) * | 1928-12-13 | 1932-10-25 | Heinrich Duetzmann | Series distribution and test terminal system. |
DE601908C (en) * | 1931-12-06 | 1934-08-27 | Stotz Kontakt Gmbh | Test clamp with two metal parts designed as line connectors, which can be connected to one another by a lockable separator |
DE1213030B (en) * | 1961-07-25 | 1966-03-24 | Siemens Ag | Contact device equipped with several sets of contacts, preferably blade contact parts, in particular for connection terminals of protective devices |
DE2345327A1 (en) * | 1973-09-07 | 1975-03-20 | Siemens Ag | Test arrangement for continuously working equipment - uses fixed point connector strip accepting PWB adaptor for test gear |
DE7717019U1 (en) * | 1977-05-28 | 1977-09-08 | C. A. Weidmueller Kg, 4930 Detmold | Series disconnect terminal |
DE3233255A1 (en) * | 1982-09-08 | 1984-03-08 | Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg | Electronic connecting terminal, especially a switching-system row terminal |
EP0424817A1 (en) * | 1989-10-25 | 1991-05-02 | Comat Ag | Essentially cubic pluggable element or device |
EP0521284A2 (en) * | 1991-07-02 | 1993-01-07 | Weidmüller Interface GmbH & Co. | Serial clip-on terminal with plugable module |
US20050250376A1 (en) * | 2004-05-04 | 2005-11-10 | Hubert Ostmeier | Interface test system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112557706A (en) * | 2020-11-27 | 2021-03-26 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
CN112557706B (en) * | 2020-11-27 | 2023-03-14 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
Also Published As
Publication number | Publication date |
---|---|
CN101449172A (en) | 2009-06-03 |
CN101449172B (en) | 2012-07-04 |
DE112006003910A5 (en) | 2009-02-26 |
HK1127643A1 (en) | 2009-10-02 |
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