CN202014037U - Demarcation switch cabinet for cable line - Google Patents
Demarcation switch cabinet for cable line Download PDFInfo
- Publication number
- CN202014037U CN202014037U CN2011200921709U CN201120092170U CN202014037U CN 202014037 U CN202014037 U CN 202014037U CN 2011200921709 U CN2011200921709 U CN 2011200921709U CN 201120092170 U CN201120092170 U CN 201120092170U CN 202014037 U CN202014037 U CN 202014037U
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- CN
- China
- Prior art keywords
- switch cabinet
- demarcation switch
- demarcation
- nonlocal
- equipment
- 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
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Abstract
A demarcation switch cabinet comprises a current transformer (3), a voltage transformer (4), a CBPC-100 demarcation switch controller, a power supply device (15) and a load switch cabinet (16), wherein the CBPC-100 demarcation switch controller consists of 10 parts: a voltage/current input device (5), an analog signal conditioning device (6), a main CPU (7), a communication function device (8), a power supply configuration module (9), a clock (10), a remote signaling input/isolation device (11), a remote signaling output/isolation device (12), a switching signal conditioning module (13) and an LCD monitor (14).
Description
Technical field
The utility model relates to a kind of circuit demarcation switch cabinet, particularly relates to a kind of 6-35KV cable line demarcation switch cabinet.
Background technology
The short circuit earth-fault indicator of cable line loading switch cabinet institute adapted in the past can only be uploaded on off state information such as separating brake, combined floodgate, ground connection, finds to upload fault message after short circuit, the earth fault, can not isolate at short notice, the disengagement failure circuit.Prolonged the time of troubleshooting, and a cable breaks down, open and close station circuit breaker outage, influenced the user's of other branches electricity consumption, enlarged the power failure scope by the higher level of failure cable.
Summary of the invention
The utility model purpose has been to provide a kind of above-mentioned defective that can overcome, and when cable fault takes place, can isolate, cuts off the demarcation switch cabinet of branch's failure cable line function rapidly.
Demarcation switch cabinet of the present utility model is made up of five parts: comprise current transformer (phase line, zero sequence), voltage transformer, CBPC-100 demarcation switch controller, supply unit and loading switch cabinet.
CBPC-100 demarcation switch controller is made up of 10 parts: comprise that electric current and voltage input, analog signal conditioner, main CPU unit, communication function, power configuration module, clock, remote signalling input are isolated, remote control is exported isolation, switching signal conditioning module and liquid crystal display and monitored.
The demarcation switch cabinet also has the nonlocal equipment of electrical link: the higher level opens and closes the station circuit breaker.
The demarcation switch cabinet also has the nonlocal equipment of communication contact: designated communication equipment.
Demarcation switch cabinet of the present utility model has increased the independent function of directly cutting off branch cable line-to-ground fault fast, has also increased the function of isolating branch cable circuit phase fault newly.
The beneficial effects of the utility model are:
When branch cable generation phase-to phase fault, the demarcation switch cabinet is the isolated fault cable line rapidly, and (about 0.5S) makes other branch cables user continue electricity consumption in the extremely short time, makes other branch cables user unaffected.
Possess three distant functions: remote signalling, remote measurement, remote control.
Information such as the voltage of demarcation switch cabinet, electric current, switch cabinet state amount, fault data, nature of trouble can be seen identical content with power supply administration on the spot the designated communication equipment while.
The very effective power failure scope of having dwindled; Improved the reliability of power supply.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
When the branch cable circuit normally moved, voltage transformer (3) was that CBPC-100 demarcation switch controller, supply unit (15) provide power supply, was current/voltage input (5) sampling numerical value.After power configuration module (9) provides power supply by voltage transformer,, voltage is dropped to the voltage that is fit to the controller use through the inner small transformers of controller.Small transformers gives controller inner lithium cell charging simultaneously, and lithium battery provides electric energy for controller during in order to dead electricity.Current transformer (3) voltage transformer (4) is with the electric current, the magnitude of voltage input that collect, become analog signal input main CPU unit (7) through analog signal conditioner (6), after input value was judged through main CPU unit (7), normal value was uploaded information to power supply administration's designated communication equipment (2) by communication function (8).Designated communication equipment (2) also can send instruction, after differentiating through main CPU unit (7), instruction is dealt into switching signal conditioning module (13), and instruction is isolated (12) operational load switch (16) separating brake, combined floodgate through issuing remote control output after nursing one's health.Simultaneously, quantity of states such as the separating brake of loading switch cabinet (16), combined floodgate, ground connection, a distant place/on the spot, energy storage upload to the remote signalling input and isolate (11), through issuing main CPU unit (7) after switching signal conditioning module (13) conditioning, upload to power supply administration's designated communication equipment (2) through communication function (8) after the signal processing.Can see the variation and the logout time of origin of above-mentioned quantity of state simultaneously in liquid crystal display supervision (14), clock (10) function has guaranteed the correct time that incident takes place.
The new function of demarcation switch cabinet has 2: isolate branch cable circuit phase fault; Directly cut off branch cable line-to-ground fault.
1) isolates branch cable circuit phase fault: when alternate (A takes place operating branch cable, B, any two-phase of C or three-phase) behind the short trouble, phase line current transformer (3) collects the phase-to phase fault electric current, pass to current/voltage input (5) module, become analog signal input main CPU unit (7) through analog signal conditioner (6), after input value is judged through main CPU unit (7), send and prepare the separating brake order, wait for that the higher level opens and closes station circuit breaker (1) outage, after the outage of higher level's circuit breaker, cable line voltage reduces immediately, electric current also can descend along with the reduction of voltage, controller records voltage by voltage transformer and drops to below the threshold set point, record electric current by current transformer and be lower than the threshold set point when following, again through after the inner phase-to phase fault time-delay of controller, send the fault trip order, trigger remote control output through switching signal conditioning module (13) conditioning back and isolate (12) relay, connect the fault trip loop, the electric energy that utilizes the super capacitor in the supply unit (15) to store, make the on-load switch tripping operation, isolated the fault branch cable line.Information such as tripping operation back fault message, on off state amount upload to nonlocal designated communication equipment (2) together.The indicator light of the fault correspondence on the controller panel is glittering simultaneously.Monitor the time that also can view the generation of corresponding information and incident on (14) in liquid crystal display.The higher level opens and closes station circuit breaker (1) through after delaying time, reclosing.Other branch line rood electricity of cable line continue operation, and branch's failure cable circuit is isolated by the demarcation switch cabinet.
2) directly cut off branch cable line-to-ground fault: when ground connection (A takes place operating branch cable, B, the any phase of C) after the fault, zero sequence current mutual inductor (3) collects fault current, pass to current/voltage input (5) module, become analog signal input main CPU unit (7) through analog signal conditioner (6), after input value is judged through main CPU unit (7), send and prepare the separating brake order, by phase line current transformer (3) record electric current be lower than the threshold set point following after, again through after the inner zero-sequence fault time-delay of controller, send the earth fault trip signal, after switching signal conditioning module (13) conditioning, trigger remote control output and isolate (12) relay, connect the earth fault trip(ping) circuit, by the super capacitor in the supply unit (15), make the on-load switch tripping operation, directly cut off branch's failure cable circuit.Information such as tripping operation back fault message, on off state amount upload to nonlocal designated communication equipment (2) together.The indicator light of the fault correspondence on the controller panel is glittering simultaneously.Monitor the time that also can view the generation of corresponding information and incident on (14) in liquid crystal display.The failure cable circuit is isolated by the demarcation switch cabinet, and other branch cable circuits are unaffected, still normally operation.
Claims (4)
1. demarcation switch cabinet, comprise current transformer (3), voltage transformer (4), CBPC-100 demarcation switch controller, supply unit (15) and loading switch cabinet (16), it is characterized in that CBPC-100 demarcation switch controller is made up of 10 parts: comprise that (11) are isolated in electric current and voltage input (5), analog signal conditioner (6), main CPU unit (7), communication function (8), power configuration module (9), clock (10), remote signalling input, (12), switching signal conditioning module (13) and liquid crystal display supervision (14) are isolated in remote control output.
2. demarcation switch cabinet according to claim 1 is characterized in that: this demarcation switch cabinet also has the nonlocal equipment of electrical link and the nonlocal equipment of communication contact.
3. demarcation switch cabinet according to claim 2 is characterized in that: the nonlocal equipment of described electrical link is that the higher level opens and closes station circuit breaker (1)
4. demarcation switch cabinet according to claim 2 is characterized in that: the nonlocal equipment of described communication contact is to specify communication apparatus (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200921709U CN202014037U (en) | 2011-04-01 | 2011-04-01 | Demarcation switch cabinet for cable line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200921709U CN202014037U (en) | 2011-04-01 | 2011-04-01 | Demarcation switch cabinet for cable line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014037U true CN202014037U (en) | 2011-10-19 |
Family
ID=44784648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200921709U Expired - Fee Related CN202014037U (en) | 2011-04-01 | 2011-04-01 | Demarcation switch cabinet for cable line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202014037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353238A (en) * | 2016-01-06 | 2016-02-24 | 国网山东省电力公司日照供电公司 | Analog switch for 10kV boundary-type automatic terminal, and implementation method |
| CN108598890A (en) * | 2018-08-03 | 2018-09-28 | 国网湖南省电力有限公司 | A kind of power distribution network ring main unit of automatic improving |
-
2011
- 2011-04-01 CN CN2011200921709U patent/CN202014037U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353238A (en) * | 2016-01-06 | 2016-02-24 | 国网山东省电力公司日照供电公司 | Analog switch for 10kV boundary-type automatic terminal, and implementation method |
| CN108598890A (en) * | 2018-08-03 | 2018-09-28 | 国网湖南省电力有限公司 | A kind of power distribution network ring main unit of automatic improving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Kexingjie Power Technology Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20140401 |