CN206020615U - Separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker - Google Patents
Separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker Download PDFInfo
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- CN206020615U CN206020615U CN201620814675.4U CN201620814675U CN206020615U CN 206020615 U CN206020615 U CN 206020615U CN 201620814675 U CN201620814675 U CN 201620814675U CN 206020615 U CN206020615 U CN 206020615U
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000003466 welding Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a kind of short circuit of low-voltage circuit breaker and closes separating tests servicing unit, including：Power supply, button, magnetic valve, the time relay, air compressor, telescopic cylinder, mechanical handle, under-voltage circuit breaker；Button, power supply, the coil of magnetic valve, the coil of the time relay are connected in series；Power supply, the normally-closed contact of the time relay, the under-voltage coil of under-voltage circuit breaker are connected in series；The air admission hole of magnetic valve is connected with the venthole of air compressor by pipeline, and the venthole of magnetic valve is connected with the air admission hole of telescopic cylinder by pipeline, and the steam vent of magnetic valve is connected with the venthole of telescopic cylinder by pipeline；The piston rod of telescopic cylinder is fixedly connected with mechanical handle；Under-voltage circuit breaker and low-voltage circuit breaker are connected in short-circuit test system, wherein the leading-out terminal of under-voltage circuit breaker connects the end of incoming cables of low-voltage circuit breaker.The action that manually operated closed low breaker is substituted by the device, has ensured the personal safety of testing crew.
Description
Technical field
The utility model is related to low-voltage circuit breaker field, more particularly to separating tests auxiliary is closed in a kind of short circuit of low-voltage circuit breaker
Device.
Background technology
Low-voltage circuit breaker is widely used in industrial and agricultural production, and the distribution for carrying electric power in low-voltage power supply and distribution system is appointed
Business.When power system is short-circuited failure, low-voltage circuit breaker is disconnected at short notice automatically, can so cut off electricity
Road, plays a part of protection in time to power system.Need to investigate accident by professional, after treating that accident investigation maintenance is completed
Re-close low-voltage circuit breaker.If now accident is not thoroughly solved for some reason, power train during closed low breaker
System yet suffers from short trouble, and at this moment low-voltage circuit breaker should disconnect automatically.Above-mentioned situation is in low-voltage electrical apparatus technical field of measurement and test
Separating tests are closed in the short circuit for being referred to as low-voltage circuit breaker.When low-voltage circuit breaker carries out short circuit conjunction separating tests, test voltage is generally
220V or 380V, test current be three kiloamperes to tens kiloamperes.If the test is by testing crew manual closing low pressure
, there is huge potential safety hazard in the handle of breaker, directly injure the personal safety of testing crew.
Content of the invention
In order to overcome above-mentioned deficiency of the prior art, the purpose of this utility model to be, there is provided a kind of low-voltage circuit breaker
Short circuit close separating tests servicing unit, including：Power supply, button, magnetic valve, the time relay, air compressor, telescopic cylinder,
Mechanical handle, under-voltage circuit breaker；
Button, power supply, the coil of magnetic valve, the coil of the time relay are connected in series；Power supply, the time relay normally closed
Contact, the under-voltage coil of under-voltage circuit breaker are connected in series；The air admission hole of magnetic valve is by pipeline and the venthole of air compressor
Connection, the venthole of magnetic valve are connected with the air admission hole of telescopic cylinder by pipeline, and the steam vent of magnetic valve passes through pipeline and stretches
The venthole connection of contracting cylinder；The piston rod of telescopic cylinder is fixedly connected with mechanical handle；By under-voltage circuit breaker and low pressure open circuit
Device is connected in short-circuit test system, and wherein the leading-out terminal of under-voltage circuit breaker connects the end of incoming cables of low-voltage circuit breaker.
Preferably, the pipeline adopts pvc pipe.
Preferably, the piston rod of the telescopic cylinder is connected using welding manner with mechanical handle.
Preferably, the button is normally opened button, and button possesses normally closed auto-lock function.
Preferably, the voltage of power supply is alternating current 220V.
Preferably, the time relay is the voltage-type time relay, and operating voltage is alternating current 220V, and time precision is
10ms, comprising normally-closed contact；When the coil for the time relay provides power supply, the time relay starts timing, and timing reaches
During time relay setting time, the normally-closed contact of the time relay is converted to normally opened contact.
Preferably, the telescopic cylinder is installed using vertical direction, moves upwards, stretch when the piston rod of telescopic cylinder stretches out
The piston rod of contracting cylinder is moved downward when retracting.
Preferably, the under-voltage circuit breaker possesses the under-voltage function of being unable to manual closing and under-voltage automatic disconnection, under-voltage disconnected
The under-voltage coil working voltage of road device is alternating current 220V.
As can be seen from the above technical solutions, the utility model has advantages below：
The short circuit of low-voltage circuit breaker is closed separating tests servicing unit and is applied to low-voltage electrical apparatus testing laboratory to low-voltage circuit breaker
Carry out short circuit and close separating tests, testing crew operation can be replaced and then manually operated closed low breaker is substituted by the device
Action, ensured the personal safety of testing crew.
Description of the drawings
In order to be illustrated more clearly that the technical solution of the utility model, accompanying drawing to be used needed for description will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for this area
For those of ordinary skill, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Overall schematics of the Fig. 1 for the short circuit conjunction separating tests servicing unit of low-voltage circuit breaker；
Workflow diagrams of the Fig. 2 for the short circuit conjunction separating tests servicing unit of low-voltage circuit breaker.
Specific embodiment
For enabling utility model purpose of the present utility model, feature, advantage more obvious and understandable, below will fortune
With specific embodiment and accompanying drawing, the technical scheme that the utility model is protected is clearly and completely described, it is clear that below
Described embodiment is only a part of embodiment of the utility model, and not all embodiment.Reality in based on this patent
Example is applied, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to
Scope in this patent protection.
The present embodiment provides a kind of short circuit of low-voltage circuit breaker and closes separating tests servicing unit, as shown in figure 1, including button 1,
Power supply 2, the time relay 3, magnetic valve 4, air compressor 5, telescopic cylinder 6, mechanical handle 7, under-voltage circuit breaker 8.
Button 1, power supply 2, the coil of magnetic valve 4, the coil of the time relay 3 are connected in series；Power supply 2, the time relay 3
Normally-closed contact, the under-voltage coil of under-voltage circuit breaker 8 is connected in series；The air admission hole of magnetic valve 4 is by pipeline and air compressor 5
Venthole connection, the venthole of magnetic valve 4 is connected with the air admission hole of telescopic cylinder 6 by pipeline, and the steam vent of magnetic valve 4 is logical
Piping is connected with the venthole of telescopic cylinder 6；The piston rod of telescopic cylinder 6 is fixedly connected with mechanical handle 7；By under-voltage release
Device 8 and low-voltage circuit breaker are connected in short-circuit test system, and wherein the leading-out terminal of under-voltage circuit breaker 8 connects entering for low-voltage circuit breaker
Line end.
In the present embodiment, pipeline adopts pvc pipe.The piston rod of telescopic cylinder 6 is connected using welding manner with mechanical handle 7
Connect.The mechanical handle is welded together with the piston rod of telescopic cylinder, when the piston rod of telescopic cylinder stretches out mechanical handle to
Upper motion, while promote the handle closure of low-voltage circuit breaker；When the piston rod of telescopic cylinder is retracted, mechanical handle is moved downward；Machine
Big little makings of the tool handle according to circuit breaker handle, meet the requirement that the handle of low-voltage circuit breaker can be closed by mechanical handle.
Button 1 is normally opened button, and button 1 possesses normally closed auto-lock function.Will button when being manually pressed by, button is by normally opened
State Transferring is normally off, and when unclamping manually, button continues to keep normally off, when next time be manually pressed by button by
Normally off dress is converted to normally open.
The voltage of power supply 2 is alternating current 220V.The working power for meeting magnetic valve, the time relay and under-voltage circuit breaker will
Ask.When the magnetic valve quits work, without the coil power supply that power supply is magnetic valve, the air inlet bore closure of magnetic valve, venthole
Open；During electromagnetic valve work, there are the coil power supply that power supply is magnetic valve, the air admission hole opening of magnetic valve, outlet bore closure；Electromagnetism
The coil working voltage of valve is alternating current 220V.The time relay 3 is the voltage-type time relay, and operating voltage is alternating current 220V,
Time precision is 10ms, comprising normally-closed contact；When the coil for the time relay provides power supply, the time relay starts to count
When, when timing reaches 3 setting time of the time relay, the normally-closed contact of the time relay is converted to normally opened contact.
The air compressor provides compressed air, as the power resources of telescopic cylinder, is closed according to circuit breaker handle
When the strength that needs adjust the air pressure of air compressor.Telescopic cylinder 6 is installed using vertical direction, the piston rod of telescopic cylinder 6
Moved when stretching out upwards, the piston rod of telescopic cylinder 6 is moved downward when retracting.Under-voltage circuit breaker 8 possesses and under-voltage can not close manually
The function with under-voltage automatic disconnection is closed, the under-voltage coil working voltage of under-voltage circuit breaker is alternating current 220V.
The operation principle of separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker：It is first according to the connection side of above-mentioned components and parts
Formula is installed, by under-voltage circuit breaker manual closing；When button 1 is manually pressed by, the time relay 3 starts from zero timing, meter
When to 3 setting time T of the time relay when, the normally-closed contact of the time relay 3 is changed into normally opened contact, now under-voltage circuit breaker 8
Automatically disconnect；Air compressor 5 provides compressed gas, enters magnetic valve 4, when button 1 is manually pressed by, the air inlet of magnetic valve 4
Hole is opened, outlet bore closure, and compressed gas promote the piston rod of telescopic cylinder 6 to stretch out, and driving mechanical handle 7 is moved upwards, is pushed away
The handle closure of dynamic low-voltage circuit breaker；The setting of time T requires, not less than 100ms, to be usually set to according to concerned countries standard
200ms；After reaching time setting value T, 8 automatic disconnection of under-voltage circuit breaker, the short circuit of low-voltage circuit breaker are closed separating tests and are completed；Will
Button 1 is manually pressed by recovering normally open, and under-voltage circuit breaker 8 is remained off, and telescopic cylinder 6 is moved downward, telescopic cylinder 6
Piston and mechanical handle 7 recover initial position, operation completes.
As shown in Fig. 2 the workflow of the present embodiment is：Manual depression of button, plant-grid connection, the coil of the time relay
Electric timing is obtained, judges whether >=T Preset Times;No：The then coil of magnetic valve, air compressor, electromagnetic valve work, stretch gas
Cylinder, mechanical handle, low-voltage circuit breaker action；It is：Then the normally-closed contact of the time relay disconnects, and under-voltage circuit breaker disconnects automatically,
Low-voltage circuit breaker disconnects.
Specifically：It is made up of circuit working portion and gas circuit working portion, circuit working portion is by button, power supply, time
Relay, magnetic valve, under-voltage circuit breaker composition, gas circuit working portion is by air compressor, magnetic valve, telescopic cylinder, manipulator
Handle is constituted；Circuit working portion illustrates and is：Manual depression of button, power supply provide work electricity for the coil of the time relay
Source, the time relay are started from scratch timing, the automatic logic judgment timing time of the time relay whether >=T, if "No", power supply
Be continuously magnetic valve coil provide working power so that piston rod keep stretch out state, under-voltage circuit breaker is kept closed,
If "Yes", the normally-closed contact of the time relay disconnects and causes the under-voltage coil of under-voltage circuit breaker to lose working power, under-voltage disconnected
Road device disconnects automatically, short-circuit test electric current of the cutoff low breaker in short-circuit test system；Gas circuit working portion is specifically
Bright it is：Air compressor provides compressed gas, and compressed gas enter magnetic valve, and when electromagnetic valve work, gas enters telescopic cylinder
Piston upwards are promoted, the mechanical handle welded together with piston rod is while move upwards, the hand of promotion low-voltage circuit breaker
Handle is closed；Circuit working portion and gas circuit working portion cooperating, auxiliary complete the short circuit of low-voltage circuit breaker and close separating tests, examination
Test end.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment was stressed is and other
The difference of embodiment, identical similar portion reference mutually between each embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Multiple modifications of these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
1. separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker, it is characterised in that included：Power supply, button, magnetic valve,
The time relay, air compressor, telescopic cylinder, mechanical handle, under-voltage circuit breaker；
Button, power supply, the coil of magnetic valve, the coil of the time relay are connected in series；Power supply, the normally closed of the time relay are touched
Point, the under-voltage coil of under-voltage circuit breaker are connected in series；Venthole of the air admission hole of magnetic valve by pipeline with air compressor connects
Connect, the venthole of magnetic valve is connected with the air admission hole of telescopic cylinder by pipeline, the steam vent of magnetic valve passes through pipeline and stretches
The venthole connection of cylinder；The piston rod of telescopic cylinder is fixedly connected with mechanical handle；By under-voltage circuit breaker and low-voltage circuit breaker
It is connected in short-circuit test system, wherein the leading-out terminal of under-voltage circuit breaker connects the end of incoming cables of low-voltage circuit breaker.
2. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The pipeline adopts pvc pipe.
3. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The piston rod of the telescopic cylinder is connected using welding manner with mechanical handle.
4. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The button is normally opened button, and button possesses normally closed auto-lock function.
5. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The voltage of power supply is alternating current 220V.
6. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The time relay is the voltage-type time relay, and operating voltage is alternating current 220V, and time precision is 10ms, comprising normal
Closed contact；When the coil for the time relay provides power supply, the time relay starts timing, and timing reaches the time relay and sets
When fixing time, the normally-closed contact of the time relay is converted to normally opened contact.
7. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The telescopic cylinder is installed using vertical direction, is moved upwards, the work of telescopic cylinder when the piston rod of telescopic cylinder stretches out
Stopper rod is moved downward when retracting.
8. separating tests servicing unit is closed in the short circuit of low-voltage circuit breaker according to claim 1, it is characterised in that
The under-voltage circuit breaker possesses the under-voltage function of being unable to manual closing and under-voltage automatic disconnection, the under-voltage line of under-voltage circuit breaker
Circle operating voltage is alternating current 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814675.4U CN206020615U (en) | 2016-07-29 | 2016-07-29 | Separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814675.4U CN206020615U (en) | 2016-07-29 | 2016-07-29 | Separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206020615U true CN206020615U (en) | 2017-03-15 |
Family
ID=58246751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620814675.4U Expired - Fee Related CN206020615U (en) | 2016-07-29 | 2016-07-29 | Separating tests servicing unit is closed in a kind of short circuit of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206020615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093770A (en) * | 2016-07-29 | 2016-11-09 | 国网山东省电力公司济南供电公司 | Separating tests auxiliary device is closed in the short circuit of a kind of low-voltage circuit breaker |
-
2016
- 2016-07-29 CN CN201620814675.4U patent/CN206020615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093770A (en) * | 2016-07-29 | 2016-11-09 | 国网山东省电力公司济南供电公司 | Separating tests auxiliary device is closed in the short circuit of a kind of low-voltage circuit breaker |
| CN106093770B (en) * | 2016-07-29 | 2019-01-29 | 国网山东省电力公司济南供电公司 | A kind of short circuit conjunction separating tests auxiliary device of low-voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170315 Termination date: 20200729 |