CN205264651U - Handcart cabinet - Google Patents
Handcart cabinet Download PDFInfo
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- CN205264651U CN205264651U CN201520930294.8U CN201520930294U CN205264651U CN 205264651 U CN205264651 U CN 205264651U CN 201520930294 U CN201520930294 U CN 201520930294U CN 205264651 U CN205264651 U CN 205264651U
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Abstract
The utility model provides a handcart cabinet, 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 a handcart position auxiliary contact (S9), a handcart position auxiliary contact (S9) is normally open contact. The utility model discloses reduce handcart cabinet circuit breaker debugging personnel, reduced experimental complexity, increased the security of electrified combined floodgate, experiment.
Description
Technical field
The utility model belongs to power system power transmission and distribution technical field, is specifically related to a kind of secondary circuit of strengthening handcart cabinet anti-misoperation locking and convenient debugging.
Background technology
At present, in the handcart cabinet breaker closing circuit that producer provides, be not connected in series handcart run location, simultaneously can not locking closing circuit; The handcart cabinet breaker that producer provides divides, in closing circuit, there is no independent test loop, needs commissioning staff by after on-the-spot measuring and controlling protective device short circuit when test, then to point, closing circuit tests.
Owing to not carrying out anti-misoperation locking with handcart position in existing closing circuit, cause the operating personnel can not safety operation; And existing test method, by the on-the-spot short circuit of short line, does not have reliable anti-error measure by measuring and controlling protective device, involves numerous first and second equipment and corresponding commissioning staff, increases complexity, the danger of test.
Summary of the invention
The utility model is for above-mentioned technical problem, a kind of novel handcart cabinet has been proposed, comprise secondary circuit, described secondary circuit comprises closing circuit, trip(ping) circuit, wherein, closing circuit is serially connected with breaker the first auxiliary contact, closing coil, and trip(ping) circuit is serially connected with breaker the second auxiliary contact, breaking coil, it is characterized in that: described closing circuit is also serially connected with handcart position the first auxiliary contact, described handcart position the first auxiliary contact are normally opened contact.
Preferably, described secondary circuit also comprises test closing circuit and test trip(ping) circuit; Test closing circuit comprises the first divide-shut brake button and handcart position 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 handcart position first auxiliary contact of closing circuit, and before being positioned at breaker the first auxiliary contact, closing coil; Test trip(ping) circuit comprises the second divide-shut brake button and handcart position 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 breaker second auxiliary contact, breaking coil of trip(ping) circuit.
Preferably, described secondary circuit also comprises operational power source circuit, and the both positive and negative polarity that two terminals of protection measure and control device connect respectively dc source has formed operational power source circuit, for power supply being provided to protection measure and control device.
Preferably, the head end of closing circuit connects a terminal of protection measure and control device, and end connects DC power cathode; The head end of trip(ping) circuit connects a terminal of protection measure and control device, and end connects DC power cathode.
The beneficial effects of the utility model: reduced handcart cabinet breaker commissioning staff, reduced the complexity of test, increased the security of charged combined floodgate, test.
Brief description of the drawings
Fig. 1 is handcart cabinet secondary circuit figure of the present utility model.
The implication of Reference numeral:
1 operational power source circuit
2 closing circuits
3 test closing circuits
4 trip(ping) circuits
5 test trip(ping) circuits
6 protection measure and control devices
735kV breaker mechanism
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and it is only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Figure 1 shows that handcart cabinet secondary circuit figure of the present utility model. As shown in Figure 1, this handcart cabinet secondary circuit comprises 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 measure and control device 6 connect respectively dc source has formed operational power source circuit 1, for power supply being provided to protection measure and control device 6; Closing circuit 2 is serially connected with auxiliary contacts of circuit breaker DL, closing coil HQ, handcart position auxiliary contact S9, auxiliary contact S9 in this closing circuit 2 is normally opened contact, the head end of closing circuit 2 connects a terminal of protection measure and control device 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 measure and control device 6, and end connects DC power cathode; Test closing circuit 3 comprises divide-shut brake button HA and handcart position auxiliary contact S8, auxiliary contact S8 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 of closing circuit 2, after this intermediate terminal is positioned at the handcart position auxiliary contact S9 of closing circuit 2, and before being positioned at auxiliary contacts of circuit breaker DL, closing coil HQ; Test trip(ping) circuit 5 comprises divide-shut brake button TA and handcart position auxiliary contact S8, auxiliary contact S8 in this loop is 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 of trip(ping) circuit 4, before this intermediate terminal is positioned at auxiliary contacts of circuit breaker DL, the breaking coil TQ of trip(ping) circuit 4.
In the indicated frame in (1), (2) in Fig. 1, (3), loop is newly-increased loop of the present utility model, and concrete condition is as follows:
Loop (1) is the handcart position auxiliary contact S9 that increases serial connection in closing circuit 2, and the auxiliary electric shock S9 in this loop is normally opened contact, realizes anti mis-closedown function, only have when handcart is during in run location, S9 auxiliary contact closure, and ensure that operation puts in place, just can close breaker.
Loop (2) and (3) are test closing circuit 3, test trip(ping) circuit 5, when the handcart of handcart cabinet is during in testing position, and press divide-shut brake button, the conducting of divide-shut brake test loop, testing crew can be at handcart during in testing 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: move handcart to testing position, i.e. S8 auxiliary contact closure, and press after switch knob HA 3 conductings of test closing circuit; Finish test by switch knob HA involution, untie test closing circuit 3;
Test trip(ping) circuit 5: move handcart to testing position, i.e. S8 auxiliary contact closure, and press after trip button TA test trip(ping) circuit 5 conductings; Finish test by trip button TA involution, untie test trip(ping) circuit 5.
The above-mentioned specific implementation proposing is herein only for exemplary, not as the restriction to the utility model protection domain. Those skilled in the art can make corresponding adjustment and change to above-mentioned implementation as the case may be, and these adjustment and change also fall in protection domain of the present utility model.
Claims (4)
1. a handcart cabinet, comprise secondary circuit, described secondary circuit comprises closing circuit, trip(ping) circuit, wherein, closing circuit is serially connected with breaker the first auxiliary contact (DL), closing coil (HQ), trip(ping) circuit is serially connected with breaker the second auxiliary contact (DL), breaking coil (TQ), it is characterized in that: described closing circuit is also serially connected with handcart position the first auxiliary contact (S9), described handcart position the first auxiliary contact (S9) are normally opened contact.
2. handcart cabinet according to claim 1, is characterized in that: described secondary circuit also comprises test closing circuit and test trip(ping) circuit;
Test closing circuit comprises the first divide-shut brake button (HA) and handcart position the second auxiliary contact (S8), the second auxiliary contact (S8) 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, handcart position the first auxiliary contact (S9) that this intermediate terminal is positioned at closing circuit afterwards, and are positioned at breaker the first auxiliary contact (DL), closing coil (HQ) before;
Test trip(ping) circuit comprises the second divide-shut brake button (TA) and handcart position the 3rd auxiliary contact (S8), the 3rd auxiliary contact (S8) 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, and breaker the second auxiliary contact (DL), breaking coil (TQ) that this intermediate terminal is positioned at trip(ping) circuit are before.
3. handcart cabinet according to claim 1 and 2; it is characterized in that: described secondary circuit also comprises operational power source circuit; the both positive and negative polarity that two terminals of protection measure and control device connect respectively dc source has formed operational power source circuit, for power supply being provided to protection measure and control device.
4. handcart cabinet according to claim 3, is characterized in that: the head end of closing circuit connects a terminal of protection measure and control device, and end connects DC power cathode; The head end of trip(ping) circuit connects a terminal of protection measure and control device, and end connects DC power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930294.8U CN205264651U (en) | 2015-11-19 | 2015-11-19 | Handcart cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930294.8U CN205264651U (en) | 2015-11-19 | 2015-11-19 | Handcart cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205264651U true CN205264651U (en) | 2016-05-25 |
Family
ID=56006166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520930294.8U Active CN205264651U (en) | 2015-11-19 | 2015-11-19 | Handcart cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205264651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861044A (en) * | 2017-10-12 | 2018-03-30 | 上海正泰自动化软件系统有限公司 | A kind of test device of ZN63A vacuum circuit-breaker handcarts control circuit board |
-
2015
- 2015-11-19 CN CN201520930294.8U patent/CN205264651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861044A (en) * | 2017-10-12 | 2018-03-30 | 上海正泰自动化软件系统有限公司 | A kind of test device of ZN63A vacuum circuit-breaker handcarts control circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |