CN205595774U - Stationary cabinet secondary circuit - Google Patents
Stationary cabinet secondary circuit Download PDFInfo
- Publication number
- CN205595774U CN205595774U CN201520930295.2U CN201520930295U CN205595774U CN 205595774 U CN205595774 U CN 205595774U CN 201520930295 U CN201520930295 U CN 201520930295U CN 205595774 U CN205595774 U CN 205595774U
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- Prior art keywords
- circuit
- auxiliary contact
- trip
- ping
- chopper
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- Withdrawn - After Issue
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Abstract
The utility model provides a stationary cabinet secondary circuit, includes combined floodgate return circuit, trip(ping) circuit, and wherein, the combined floodgate return circuit has concatenated a circuit breaker auxiliary contact (DL), closing coils (HQ), and the trip(ping) circuit has concatenated the 2nd auxiliary contact of circuit breaker (DL), trip coil (TQ), the combined floodgate return circuit has still concatenated circuit breaker both sides switch auxiliary contact (1G, 2G), a circuit breaker both sides switch auxiliary contact (1G, 2G) are normally open contact. The utility model discloses reduce stationary cabinet circuit breaker debugging personnel, reduced experimental complexity, increased the security of electrified combined floodgate, experiment.
Description
Technical field
This utility model belongs to power system power transmission and distribution technical field, is specifically related to a kind of secondary circuit strengthening fixing cabinet anti-misoperation locking and convenient debugging.
Background technology
At present, in the fixing cabinet breaker closing circuit that producer provides, do not concatenate disconnecting link position, chopper both sides, simultaneously can not locking closing circuit；The fixing cabinet breaker that producer provides divides, in closing circuit, is also not provided with single test loop, needs commissioning staff by after the short circuit of measuring and controlling protective device scene, then test divide-shut brake loop during test.
Owing to existing closing circuit not carrying out anti-misoperation locking with disconnecting link position, chopper both sides, cause the operator can not safety operation；And, existing test method is by short line scene short circuit by protection supervisory equipment, does not has reliable anti-error measure, involves numerous first and second equipment and corresponding commissioning staff, adds the complexity of test, danger.
Summary of the invention
This utility model is for above-mentioned technical problem, propose a kind of novel fixing cabinet secondary circuit, including closing circuit, trip(ping) circuit, wherein, closing circuit is serially connected with chopper the first auxiliary contact, closing coil, trip(ping) circuit is serially connected with chopper the second auxiliary contact, breaking coil, and described closing circuit is also serially connected with chopper both sides disconnecting link the first auxiliary contact, and described chopper both sides disconnecting link the first auxiliary contact are normally opened contact.
Preferably, described secondary circuit also includes testing closing circuit and test trip(ping) circuit；Test closing circuit includes the first divide-shut brake button and chopper both sides disconnecting link the second auxiliary contact, the second auxiliary contact in this loop are normally-closed contact, the head end of test closing circuit is connected to the positive pole of DC source, end is connected to the intermediate terminal of closing circuit, after this intermediate terminal is positioned at chopper both sides disconnecting link first auxiliary contact of closing circuit, and before being positioned at chopper the first auxiliary contact, closing coil；Test trip(ping) circuit includes the second divide-shut brake button and chopper both sides disconnecting link the 3rd auxiliary contact, the 3rd auxiliary contact in this loop are normally-closed contact, the head end of test trip(ping) circuit is connected to DC power anode, end is connected to the intermediate terminal of trip(ping) circuit, before this intermediate terminal is positioned at chopper second auxiliary contact of trip(ping) circuit, breaking coil.
Preferably, described secondary circuit also includes operational power source circuit, and the both positive and negative polarity that two terminals of protection supervisory equipment connect DC source respectively constitutes operational power source circuit, for providing power supply to protection supervisory equipment.
Preferably, the head end of closing circuit connects a terminal of protection supervisory equipment, and end connects DC power cathode；The head end of trip(ping) circuit connects a terminal of protection supervisory equipment, and end connects DC power cathode.
The beneficial effects of the utility model: decrease fixing cabinet breaker commissioning staff, reduce the complexity of test, add the safety of charged combined floodgate, test.
Accompanying drawing explanation
Fig. 1 is fixing cabinet secondary circuit graph of the present utility model.
The implication of reference:
1 operational power source circuit
2 closing circuits
3 test closing circuits
4 trip(ping) circuits
5 test trip(ping) circuits
6 protection supervisory equipment
7 35kV breaker mechanisms
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and it is only used for explaining this utility model, and it is not intended that to restriction of the present utility model.
Fig. 1 show fixing cabinet secondary circuit graph of the present utility model.As it is shown in figure 1, this fixing cabinet secondary circuit includes operational power source circuit 1, closing circuit 2, test closing circuit 3, trip(ping) circuit 4, test trip(ping) circuit 5.
Wherein, the both positive and negative polarity that two terminals of protection supervisory equipment 6 connect DC source respectively constitutes operational power source circuit 1, for providing power supply to protection supervisory equipment 6；Closing circuit 2 is serially connected with auxiliary contacts of circuit breaker DL, closing coil HQ, chopper both sides disconnecting link auxiliary contact 1G, 2G; auxiliary contact 1G, 2G in this closing circuit 2 is normally opened contact; the head end of closing circuit 2 connects a terminal of protection supervisory equipment 6, and end connects DC power cathode；Trip(ping) circuit 4 is serially connected with auxiliary contacts of circuit breaker DL and breaking coil TQ, and the head end of trip(ping) circuit 4 connects a terminal of protection supervisory equipment 6, and end connects DC power cathode；Test closing circuit 3 includes divide-shut brake button HA and chopper both sides disconnecting link auxiliary contact 1G ', 2G ', auxiliary contact 1G ', 2G ' in this loop is normally-closed contact, the head end of test closing circuit 3 is connected to the positive pole of DC source, end is connected to the intermediate terminal X3 of closing circuit 2, after intermediate terminal X3 is positioned at disconnecting switch auxiliary contact 1G, 2G of closing circuit 2, and before being positioned at auxiliary contacts of circuit breaker DL, closing coil HQ；Test trip(ping) circuit 5 include divide-shut brake button TA and chopper both sides disconnecting link auxiliary contact 1G ", 2G ", auxiliary contact 1G in this loop ", 2G " be normally-closed contact, the head end of test trip(ping) circuit 5 is connected to DC power anode, end is connected to the intermediate terminal X7 of trip(ping) circuit 4, before intermediate terminal X7 is positioned at the auxiliary contacts of circuit breaker DL of trip(ping) circuit 4, breaking coil TQ.
In Fig. 1, in frame indicated by (1), (2), (3), loop is newly-increased loop of the present utility model, and concrete condition is as follows:
Loop (1) is chopper both sides disconnecting link auxiliary contact 1G, the 2G increasing concatenation in closing circuit 2, auxiliary electric shock 1G, 2G in this loop are normally opened contact, realize anti mis-closedown function, the most only when chopper both sides disconnecting link is in closing position, 1G, 2G auxiliary contact close, and could close chopper.
Loop (2) and (3) are test closing circuit 3, test trip(ping) circuit 5, when fixing cabinet breaker both sides disconnecting link is in open position, and press divide-shut brake button, divide-shut brake test loop turns on, testing crew can be when chopper both sides disconnecting link be in open position, being done experiment in circuit-breaker switching on-off loop of safety, the specific works principle of test loop (2) and (3) is as follows:
Test closing circuit 3: opened by chopper both sides disconnecting link, i.e. 1G ', 2G ' auxiliary contact close, and after pressing switch knob HA, test closing circuit 3 turns on；Finish and test switch knob HA involution, i.e. untie test closing circuit 3；
Test trip(ping) circuit 5: chopper both sides disconnecting link is opened, i.e. 1G ", 2G " auxiliary contact Guan Bi, and after pressing trip button TA, test trip(ping) circuit 5 turns on；Finish and test the involution of trip button TA, i.e. untie test trip(ping) circuit 5.
It should be noted that, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from the spirit and scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.
Claims (2)
1. a fixing cabinet secondary circuit, including closing circuit, trip(ping) circuit, wherein, closing circuit is serially connected with chopper the first auxiliary contact (DL), closing coil (HQ), trip(ping) circuit is serially connected with chopper the second auxiliary contact (DL), breaking coil (TQ), it is characterized in that: described closing circuit is also serially connected with chopper both sides disconnecting link the first auxiliary contact (1G, 2G), and described chopper both sides disconnecting link the first auxiliary contact (1G, 2G) are normally opened contact；
Described secondary circuit also includes operational power source circuit, and the both positive and negative polarity that two terminals of protection supervisory equipment connect DC source respectively constitutes operational power source circuit, for providing power supply to protection supervisory equipment；
The head end of closing circuit connects a terminal of protection supervisory equipment, and end connects DC power cathode；The head end of trip(ping) circuit connects a terminal of protection supervisory equipment, and end connects DC power cathode.
Fixing cabinet secondary circuit the most according to claim 1, it is characterised in that: described secondary circuit also includes testing closing circuit and test trip(ping) circuit；
Test closing circuit includes the first divide-shut brake button (HA) and chopper both sides disconnecting link the second auxiliary contact (1G ', 2G '), the second auxiliary contact in this loop (1G ', 2G ') are normally-closed contact, the head end of test closing circuit is connected to the positive pole of DC source, end is connected to the intermediate terminal (X3) of closing circuit, after this intermediate terminal (X3) is positioned at chopper both sides disconnecting link the first auxiliary contact (1G, 2G) of closing circuit, and before being positioned at chopper the first auxiliary contact (DL), closing coil (HQ)；
Test trip(ping) circuit includes the second divide-shut brake button (TA) and chopper both sides disconnecting link the 3rd auxiliary contact (1G ", 2G "), the 3rd auxiliary contact in this loop (1G ", 2G ") are normally-closed contact, the head end of test trip(ping) circuit is connected to DC power anode, end is connected to the intermediate terminal (X7) of trip(ping) circuit, before this intermediate terminal (X7) is positioned at the chopper the second auxiliary contact (DL) of trip(ping) circuit, breaking coil (TQ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930295.2U CN205595774U (en) | 2015-11-19 | 2015-11-19 | Stationary cabinet secondary circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930295.2U CN205595774U (en) | 2015-11-19 | 2015-11-19 | Stationary cabinet secondary circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595774U true CN205595774U (en) | 2016-09-21 |
Family
ID=56926612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520930295.2U Withdrawn - After Issue CN205595774U (en) | 2015-11-19 | 2015-11-19 | Stationary cabinet secondary circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205595774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375450A (en) * | 2015-11-19 | 2016-03-02 | 内蒙古电力勘测设计院有限责任公司 | Secondary circuit of fixed cabinet |
-
2015
- 2015-11-19 CN CN201520930295.2U patent/CN205595774U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375450A (en) * | 2015-11-19 | 2016-03-02 | 内蒙古电力勘测设计院有限责任公司 | Secondary circuit of fixed cabinet |
| CN105375450B (en) * | 2015-11-19 | 2018-07-17 | 内蒙古电力勘测设计院有限责任公司 | A kind of fixed cabinet secondary circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160921 Effective date of abandoning: 20180717 |