CN209471914U - A kind of novel tripping device - Google Patents
A kind of novel tripping device Download PDFInfo
- Publication number
- CN209471914U CN209471914U CN201920552012.3U CN201920552012U CN209471914U CN 209471914 U CN209471914 U CN 209471914U CN 201920552012 U CN201920552012 U CN 201920552012U CN 209471914 U CN209471914 U CN 209471914U
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- CN
- China
- Prior art keywords
- trip signal
- circuit
- time relay
- signal input
- input circuit
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Abstract
The utility model relates to technical field of electronic equipment, a kind of particularly novel tripping device.The utility model discloses a kind of novel tripping devices, including the time relay, actuation coil and hold-in winding, the time relay is powered by trip signal input circuit, the actuation coil connect with the normally closed switch of the time relay after with trip signal input circuit constitute the first current supply circuit, the hold-in winding connect with the normal open switch of the time relay after with trip signal input circuit composition the second current supply circuit.The utility model tripping circuit can be powered for a long time, will not burn trip coil；Structure is relatively easy, and the normally opened and normally-closed contact between circuit directly by the time relay switches over, advantage of lower cost.
Description
Technical field
The utility model belongs to technical field of electronic equipment, more particularly to a kind of novel tripping device.
Background technique
What control high-voltage circuitbreaker was cut-off at present is divide-shut brake buckle releaser, if divide-shut brake buckle releaser goes wrong, open circuit
Device cannot cut off in time circuit to protect power system stability to run, or even will cause major accident.Existing divide-shut brake is de-
The most common failure of button device includes: that (separating brake) loop resistance that closes a floodgate becomes larger, secondary circuit voltage is low and position switch Traffic control system not
In place or situations such as adhesion.Wherein divide/situations such as closing circuit resistance becomes larger, and secondary circuit voltage is low, position switch adhesion
Most prominent features are point/and closing circuit conduction time is too long, leads to point/Burnout of Closing Coil, and breaker cannot normally divide/close
Lock.
Summary of the invention
The purpose of this utility model is to provide a kind of novel tripping devices to solve above-mentioned technical problem.
To achieve the above object, the technical solution adopted in the utility model are as follows: a kind of novel tripping device, including time relay
Device, actuation coil and hold-in winding, the time relay are powered by trip signal input circuit, the actuation coil and time
Constitute the first current supply circuit after the normally closed switch series connection of relay with trip signal input circuit, the hold-in winding and time after
The second current supply circuit is constituted with trip signal input circuit after the normal open switch series connection of electric appliance.
Further, the first end of the actuation coil is connect with the first output end of trip signal input circuit, described
The second end of actuation coil and the first end of hold-in winding connect, the second end series connection time relay of the hold-in winding it is normal
Switch connects the second output terminal of trip signal input circuit, the second end series connection time relay of the actuation coil it is normally closed
Switch connects the second output terminal of trip signal input circuit.
Further, the resistance of the actuation coil is 250 Ω.
Further, the resistance of the hold-in winding is 1K Ω.
Further, the time relay is electronical time relay.
Further, the trip signal input circuit includes rectification circuit, and the input of the rectification circuit terminates tripping
Signal, the output end of the rectification circuit are the output end of trip signal input circuit.
Further, the trip signal input circuit further includes filter circuit, and the filter circuit connects in rectified current
Between the input terminal and trip signal on road.
Further, the delay time of the time relay is 100ms.
The advantageous effects of the utility model:
The tripping coil circuit of the utility model can be powered for a long time, will not burn trip coil, safety is more
Height, effective protection trip coil are not burned out under various extreme operating conditions, while guaranteeing that the breaker actuation time is more accurate；
Structure is relatively easy, and the normally opened and normally-closed contact between circuit directly by the time relay switches over, advantage of lower cost.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the circuit diagram of the utility model specific embodiment.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, a kind of novel tripping device, including time relay KT, actuation coil 1 and hold-in winding 2, when described
Between relay KT powered by trip signal input circuit, the actuation coil 1 is connected with the normally closed switch K1 of time relay KT
The first current supply circuit, the normal open switch K2 of the hold-in winding 2 and time relay KT are constituted with trip signal input circuit afterwards
The second current supply circuit is constituted with trip signal input circuit after series connection.
In this specific embodiment, the trip signal input circuit includes rectification circuit, the input terminal of the rectification circuit
Trip signal is connect, the output end of the rectification circuit is the output end of trip signal input circuit.
In this specific embodiment, rectification circuit is realized by the rectifier bridge BD1 of full-bridge rectification, the tripping letter for that will exchange
Number current rectification is that time relay KT, actuation coil 1 and hold-in winding 2 are powered at DC current.
In this specific embodiment, the trip signal input circuit further includes filter circuit, and the filter circuit connects whole
Between the input terminal and trip signal for flowing bridge BD1, for being filtered to trip signal, stability is improved.Specifically, this implementation
In example, filter circuit includes filter capacitor C1, and the filter capacitor C1 connects between two input terminals of rectifier bridge BD1.
In this specific embodiment, (trip signal is defeated for the positive output end of the first end 3 and rectifier bridge BD1 of the actuation coil 1
Enter the first output end of circuit) it connects, the second end 4 of the actuation coil 1 is connect with the first end 4 of hold-in winding 2, the guarantor
The connect normal open switch K2 of time relay KT of second end 5 for holding coil 2 connects the negative output terminal of rectifier bridge BD1 (trip signal is defeated
Enter the second output terminal of circuit), the normally closed switch K1 of the series connection of second end 4 time relay KT of the actuation coil 1 connects rectification
The negative output terminal of bridge BD1.Using the above structure, actuation coil 1 and hold-in winding 2 can be realized using a coil, structure
It is simple and compact.
In this specific embodiment, the resistance of the actuation coil 1 is 250 Ω, and the resistance of the hold-in winding 2 is 1K Ω,
Not only ensured that trip action was reliable, but also avoided coil from being powered for a long time and burn, but it is not limited to this, in other embodiments, movement
The resistance of coil 1 and the resistance of hold-in winding 2 can be selected according to the actual situation, this is that those skilled in the art can be light
It easily realizes, no longer describes in detail.
In this specific embodiment, the time relay KT is preferably electronical time relay, and reference time delay is wide, longest
Up to 3600S, precision is high, and generally 5% or so, small in size, impact resistance vibration is easy to adjust.Certainly, in other embodiments
In, time relay KT can also use the other types of time relay, this is that those skilled in the art can realize easily
, no longer describe in detail.
In this specific embodiment, the delay time of the time relay KT is 100ms, has both guaranteed that trip action was reliable,
It avoids 1 conduction time of actuation coil too long again and burns, but it is not limited to this.
The course of work:
It (is not powered on) when no trip signal inputs, time relay KT must not electricity, actuation coil 1 and hold-in winding 2
All no powers, buckle releaser are failure to actuate.
When there is trip signal input, for trip signal after filter capacitor C1 filtering, rectified bridge BD1 is rectified into direct current
Electric current is powered to time relay KT, and within the preceding 100ms time, normally closed switch K1 conducting, normal open switch K2 is still disconnected, and is acted
Coil 1 must be electric, and electric current returns to the just defeated of rectifier bridge BD1 through actuation coil 1 and normally closed switch K1 from the positive output end of rectifier bridge BD1
Outlet negative output terminal, buckle releaser act and breaker mechanism are pushed to complete conjunction/separating brake movement, it is assumed that buckle releaser voltage rating is
When 220V, then the action current for flowing through actuation coil 1 is about 0.9A.
After 100ms, normally closed switch K1 is turned off, while normal open switch K2 becomes to be closed by disconnecting, at this time current loop
The positive output end for being switched to rectifier bridge BD1 is returning to rectifier bridge BD1 just through actuation coil 1, hold-in winding 2 and normal open switch K2
Output end negative output terminal, at this point, the holding electric current for flowing through actuation coil 1 and hold-in winding 2 is only extremely low tens of milliamperes, coil
Calorific value is few, and can be powered for a long time will not burn actuation coil 1 and hold-in winding 2, and due to the characteristic of electromagnet, this
The electric current of milliampere grade is sufficient to make iron core to be reliably maintained at attracted position, meets the requirements.
The utility model trip coil circuit can be powered for a long time, will not burn trip coil, safety is more
Height, effective protection trip coil are not burned out under various extreme operating conditions, while controlling the time by time relay KT, are protected
It is more accurate to demonstrate,prove the breaker actuation time；Structure is relatively easy, directly by the normally opened and normally closed of the time relay between circuit
Contact switches over, advantage of lower cost.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (8)
1. a kind of novel tripping device, it is characterised in that: including the time relay, actuation coil and hold-in winding, the time after
Electric appliance is powered by trip signal input circuit, the actuation coil connect with the normally closed switch of the time relay after with trip signal
Input circuit constitutes the first current supply circuit, and the hold-in winding is defeated with trip signal after connecting with the normal open switch of the time relay
Enter circuit and constitutes the second current supply circuit.
2. novel tripping device according to claim 1, it is characterised in that: the first end and trip signal of the actuation coil
First output end of input circuit connects, and the second end of the actuation coil and the first end of hold-in winding connect, the holding
The normal open switch of the second end series connection time relay of coil connects the second output terminal of trip signal input circuit, the actuating wire
The normally closed switch of the second end series connection time relay of circle connects the second output terminal of trip signal input circuit.
3. novel tripping device according to claim 1, it is characterised in that: the resistance of the actuation coil is 250 Ω.
4. novel tripping device according to claim 3, it is characterised in that: the resistance of the hold-in winding is 1K Ω.
5. novel tripping device according to claim 1, it is characterised in that: the time relay is electronic time relay
Device.
6. novel tripping device according to claim 1, it is characterised in that: the trip signal input circuit includes rectified current
Road, the input of the rectification circuit terminate trip signal, and the output end of the rectification circuit is the defeated of trip signal input circuit
Outlet.
7. novel tripping device according to claim 6, it is characterised in that: the trip signal input circuit further includes filtering
Circuit, the filter circuit connect between the input terminal and trip signal of rectification circuit.
8. novel tripping device according to claim 1, it is characterised in that: the delay time of the time relay is
100ms。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920552012.3U CN209471914U (en) | 2019-04-22 | 2019-04-22 | A kind of novel tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920552012.3U CN209471914U (en) | 2019-04-22 | 2019-04-22 | A kind of novel tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209471914U true CN209471914U (en) | 2019-10-08 |
Family
ID=68093501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920552012.3U Expired - Fee Related CN209471914U (en) | 2019-04-22 | 2019-04-22 | A kind of novel tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209471914U (en) |
-
2019
- 2019-04-22 CN CN201920552012.3U patent/CN209471914U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191008 Termination date: 20200422 |