CN109346382A - A kind of single lamp instruction device of high-tension switch cabinet inner breaker divide-shut brake movement - Google Patents
A kind of single lamp instruction device of high-tension switch cabinet inner breaker divide-shut brake movement Download PDFInfo
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- CN109346382A CN109346382A CN201811231192.1A CN201811231192A CN109346382A CN 109346382 A CN109346382 A CN 109346382A CN 201811231192 A CN201811231192 A CN 201811231192A CN 109346382 A CN109346382 A CN 109346382A
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- 239000003990 capacitor Substances 0.000 claims description 14
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
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Abstract
The embodiment of the invention provides a kind of high-tension switch cabinet inner breaker divide-shut brakes to act single lamp instruction device, and including glistening, there are four indicator light, closing operation position relay and the tripping position relays of connector for small bus, control switch, band；By the way that glisten small bus and indicator light are added in original circuit breaker control circuit, and pass through the small bus of the different contacts of control switch connection flash of light and indicator light, when divide-shut brake automatic using breaker and the not principle of correspondence of control switch realizes the flashing of indicator light, and the specific situation for combining the position of control switch to judge that circuit-breaker switching on-off acts, accuracy rate is high, simple and easy.
Description
Technical field
The present embodiments relate to technical field of electric control, more particularly, to a kind of high-tension switch cabinet inner breaker
Divide-shut brake acts single lamp instruction device.
Background technique
(such as KYN28 type high-tension switch cabinet) controls small bus and substantially meets breaker control in existing high-tension switch cabinet
It is required that, for example, (1) breaker closing and breaking coil are designed by brief energization, i.e., on-off switch is acting
It resets rapidly afterwards, in case coil can be burnt out when tripping or combined floodgate；(2) there is monitoring circuit to control power supply, once control power supply
Power loss, breaker will be unable to operate, and issue sound and light signal to remind the relevant personnel to handle in time；(3) for the division of breaker
Lock state has apparent condition indicative signal；(4) breaker can either manual divide-shut brake, while also being capable of automatic divide-shut brake.
For existing switchgear after automatic closing or closing by hand, the indicator light for being serially connected with opening coil circuit issues default face
Color zero diopter；After automatic brake separating or manual brake separating, the indicator light for being serially connected with closing coil circuit issues another pre-set color zero diopter,
The zero diopter that lamp indicated above issues different colours under different conditions can provide the finger of high-voltage board operating status for operator
Show information.
But operator is to be manually operated or be automatically brought into operation further differentiating divide-shut brake movement, it need to be by means of comprehensive
Protection device, and can not intuitively obtain above- mentioned information, and go to judge breaker by the state of two different colours indicator lights
Movement, often causes to judge incorrectly because of scramble data meaning.
Summary of the invention
The embodiment of the invention provides a kind of height for overcoming the above problem or at least being partially solved the above problem to press off
It closes cabinet inner breaker divide-shut brake and acts single lamp instruction device.
The embodiment of the invention provides a kind of high-tension switch cabinet inner breaker divide-shut brakes to act single lamp instruction device, including
Glistening, there are four indicator light, closing operation position relay and the tripping position relays of connector for small bus, control switch, band；Its
In,
The small bus of the flash of light includes flash circuit, and the flash circuit is connected to the small bus of the flash of light and breaker
Between control bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the conjunction
One end of the normally opened contact of gate position relay is connect with the third contact of the control switch, the tripping position relay
One end of normally opened contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector for the band
It is connect respectively with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing position relay
The other end of the normally opened contact of device is connect with the 5th contact and the 6th contact respectively, the tripping position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th touching
Point is connect with the cathode of control circuit respectively；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash of light
Circuit includes the flashing relay normally-closed contact, flashing relay coil and resistance for being sequentially connected in series setting, and the flash of light after
The both ends of electric apparatus coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and described
Five contacts are connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and described the
Four contacts are connected, and the 6th contact is connected with the 8th contact.
Further, the control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8.
Further, there are four emit white light when the work of the indicator light of connector for the band.
Further, including the small bus that glistens, control switch, band, there are four indicator light, the closing operation position relays of connector
And tripping position relay；Wherein,
The small bus of the flash of light includes flash circuit, and the flash circuit is connected to the small bus of the flash of light and breaker
Between control bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the conjunction
One end of the normally opened contact of gate position relay is connect with the third contact of the control switch, the tripping position relay
One end of normally opened contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector for the band
It is connect respectively with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing position relay
The other end of the normally opened contact of device is connect with the 5th contact and the 6th contact respectively, the tripping position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th touching
Point is connect with the cathode of control circuit respectively；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash of light
Circuit includes the flashing relay normally-closed contact, flashing relay coil and resistance for being sequentially connected in series setting, and the flash of light after
The both ends of electric apparatus coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and described
Five contacts are connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and described the
Four contacts are connected, and the 6th contact is connected with the 8th contact；
The control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8；
There are four emit white light when the work of the indicator light of connector for the band.
A kind of high-tension switch cabinet inner breaker divide-shut brake provided in an embodiment of the present invention acts single lamp instruction device, passes through
Glisten small bus and indicator light are added in original circuit breaker control circuit, and connects flash of light by the different contacts of control switch
Small bus and indicator light, when divide-shut brake automatic using breaker and the not principle of correspondence of control switch realizes the flashing of indicator light,
And the position of control switch is combined to judge the specific situation of circuit-breaker switching on-off movement, accuracy rate is high, simple and easy.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of schematic illustration of flash circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of control circuit schematic diagram of breaker provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
The present invention provides a kind of high-tension switch cabinet inner breaker divide-shut brakes to act single lamp instruction device, including glistens small
There are four indicator light, closing operation position relay and the tripping position relays of connector for bus, control switch, band；Wherein,
The small bus of the flash of light includes flash circuit, and the flash circuit is connected to the small bus of the flash of light and breaker
Between control bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the conjunction
One end of the normally opened contact of gate position relay is connect with the third contact of the control switch, the tripping position relay
One end of normally opened contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector for the band
It is connect respectively with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing position relay
The other end of the normally opened contact of device is connect with the 5th contact and the 6th contact respectively, the tripping position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th touching
Point is connect with the cathode of control circuit respectively；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash of light
Circuit includes the flashing relay normally-closed contact, flashing relay coil and resistance for being sequentially connected in series setting, and the flash of light after
The both ends of electric apparatus coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and described
Five contacts are connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and described the
Four contacts are connected, and the 6th contact is connected with the 8th contact.
Wherein, Fig. 1 is a kind of schematic illustration of flash circuit provided in an embodiment of the present invention, as shown in Figure 1, WTW table
Show the small bus of flash of light, is sequentially connected in series in the first flash circuit and is provided with flashing relay normally-closed contact KM1, flashing relay coil
KM and resistance R, the both ends of the flashing relay coil KM are parallel with a capacitor C；Second flash circuit includes flash of light relay
Device normally opened contact KM2.
Flash Light principle is as follows: press test button SE, control small bus positive supply through flashing relay normally-closed contact KM1,
Capacitor C, resistance R, the moving together contact of test button SE, signal lamp HW and resistance are connected with small bus negative supply is controlled, and capacitor C is opened
Begin to charge, the small bus current potential that glistens reduces, and then signal lamp HW is dimmed because of the reduction of the voltage at both ends.Be connected in parallel on flash of light after
The capacitor C at the both ends electric apparatus coil KM is because charging voltage constantly increases, when reaching flashing relay operation voltage, flashing relay
Movement, normally opened contact KM2 closure, the both ends signal lamp HW brighten because voltage increases, and the small bus current potential that glistens increases.It dodges simultaneously
The normally closed point KM1 of optical relay is disconnected, and capacitor C stops charging, and capacitor C starts to flashing relay coil discharge, the both ends capacitor C electricity
When pressure drop is to flashing relay return voltage, flashing relay is returned, and normally opened contact KM2 is disconnected, and HW is again dimmed；Normally-closed contact
KM1 closure, and start to charge to capacitor C.So in cycles, the bright group flashing light of signal lamp HW mono- dark one, while small mother of glistening
Line current potential one low one is high.
Specifically, when accessing circuit breaker control circuit, the more control switch alternate test button SE in contact, institute are utilized
The small bus of flash of light is stated to connect with the first contact of the control switch and the second contact respectively, the closing operation position relay it is normal
The one end for opening contact is connect with the third contact of the control switch, one end of the normally opened contact of the tripping position relay with
4th contact of the control switch connects；There are four four connectors of the indicator light of connector to open respectively with the control for the band
The 5th contact, the 6th contact, the 7th contact and the connection of the 8th contact closed；The normally opened contact of the closing operation position relay it is another
One end is connect with the 5th contact and the 6th contact respectively, the other end of the normally opened contact of the tripping position relay
It is connect respectively with the 5th contact and the 6th contact；7th contact and the 8th contact respectively with control circuit
Cathode connection.Indicator light issues zero diopter when closing by hand and tripping, and the position in conjunction with control switch is that can determine whether movement to close
Lock still trips.
When stating control switch and being in " after tripping " position, the first contact is connected with third contact, and the 5th contact and
Seven contacts are connected, if automatic device controls breaker automatic closing, the normally opened contact closure of closing operation position relay, tripping at this time
The normally opened contact of position relay disconnects, and current path is small the-the first contact of bus-third contact-closing position relay of glistening
The normally opened contact of device-five-indicator light of contact-contact seven-controls small bus cathode, under the action of Flash Light principle, indicator light hair
It glistens out, then when indicator light flashes, and operator knows that control switch is in " after tripping " position, then can sentence
The movement of disconnected breaker at this time is automatic closing.Control switch is adjusted to position " after combined floodgate " by operator manually, then the first touching
Point and third contact disconnect, and the 5th contact and the 7th contact disconnect, other contacts of control switch are connected, and indicator light issues flat
Light.
When control switch is in " after combined floodgate " position, the second contact is connected with the 4th contact, and the 6th contact and the 8th
Contact is connected, if automatic device control breaker automatic trip at this time or breaker are because of fault trip, closing position relay
The normally opened contact of device disconnects, and the normally opened contact closure of tripping position relay, current path is small the-the second contact of bus-of glistening
The small bus cathode of six contacts of normally opened contact-the of four contacts-tripping position relay-eight contacts of indicator light-the-control,
Under the action of Flash Light principle, indicator light flashes, then when indicator light flashes, and operator knows control switch
In " after combined floodgate " position, then it may determine that the movement of breaker at this time is automatic trip.Operator is manual by control switch
It is adjusted to position " after tripping ", then the second contact and the 4th contact disconnect, and the 6th contact and the 8th contact disconnect, control switch
Other contacts are connected, and the second indicator light issues zero diopter.
A kind of high-tension switch cabinet inner breaker divide-shut brake provided in an embodiment of the present invention acts single lamp instruction device, passes through
Glisten small bus and indicator light are added in original circuit breaker control circuit, and connects flash of light by the different contacts of control switch
Small bus and indicator light, when divide-shut brake automatic using breaker and the not principle of correspondence of control switch realizes the flashing of indicator light,
And the position of control switch is combined to judge the specific situation of circuit-breaker switching on-off movement, accuracy rate is high, simple and easy.
In the above-described embodiments, the control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8.
Wherein, LW2-YZ-1a, the full contact of 4,6a, 40,20,20/F8 type control switches connecing in different location as follows
Logical state is as follows:
Position after combined floodgate: the contact 1-3,9-10,16-13,19-17 is connected；
Closing position: the contact 5-8,9-12,16-13,19-17 is connected；
Preparation closing position: the contact 1-3,9-10,14-13,17-18 is connected；
Preparation open position: the contact 2-4,11-10,14-13,17-18 is connected；
Open position: the contact 6-7,11-10,14-15,18-20 is connected；
Position after separating brake: the contact 2-4,11-10,14-15,18-20 is connected.
Accordingly, the first contact, the second contact, third contact, the 4th contact, the 5th contact, the 6th touching in the present embodiment
Point, the 7th contact and the 8th contact correspond respectively to LW2-YZ-1a, the contact in 4,6a, 40,20,20/F8 type control switches
18, contact 13, contact 19, contact 16, contact 1, contact 2, contact 3 and contact 4.
Specifically, Fig. 2 is provided in an embodiment of the present invention a kind of using LW2-YZ-1a, 4,6a, 40,20,20/F8 type controls
The circuit breaker control circuit schematic diagram of switch is made, as shown in Figure 2.
If breaker is in trip position, control switch SA is in " after tripping " position, the contact 1,3 of SA, contact 15,14, touching
Point 18,19 is respectively turned on.If automatic device makes breaker automatic closing, the normally opened contact KCC of the relay of closing position at this time
The normally opened contact of closure, tripping position relay KCT disconnects, so contact 1,3, there is electric current stream in the circuit where contact 18,19
It crosses, the small bus → contact SA 18 of current path flash of light, 19 → KCC → contact the SA 1,3 → small bus cathode of control, indicator light WH connect
It glistens to the small bus hair of flashing power source, and position after tripping at control switch, indicates breaker automatic closing.Operator will
SA beat to close a floodgate after position, contact 1,3, contact 18,19 disconnect, contact 2,4 connect, contact 20,17 connect, where return
Electric current is flowed through on road, and SA is corresponding with circuit breaker position, and indicator light issues zero diopter again.
If breaker is in trip position, control switch SA is in " after combined floodgate " position, the contact 2,4 of SA, contact 13,14, touching
Point 20,17 is connected.If automatic device makes breaker automatic trip, the normally opened contact KCT of the relay of trip position is closed at this time,
The normally opened contact of closing operation position relay KCC disconnects, so contact 2,4, the circuit where contact 13,14 has electric current to flow through, electricity
Flow path flash of light bus → contact SA 13,14 → KCT → contact the SA 2,4 → small bus cathode of control, indicator light WH are connected to flash of light
The small bus hair flash of light of power supply, and control switch is in position after combined floodgate, indicates breaker automatic trip.Operator turns SA extremely
Position after tripping, contact 2,4, contact 13,14 disconnect, contact 1,3 connect, contact 14,15 connect, where circuit flow through
Electric current, SA is corresponding with circuit breaker position, and indicator light issues zero diopter again.
In the above-described embodiments, there are four emit white light when the work of the indicator light of connector for the band.
Specifically, when automatic closing, indicator light issues white flash, and when automatic trip, indicator light issues white and dodges
Light.
In the above-described embodiments, a kind of high-tension switch cabinet inner breaker divide-shut brake acts single lamp instruction device, including dodges
There are four indicator light, closing operation position relay and the tripping position relays of connector for the small bus of light, control switch, band；Wherein,
The small bus of the flash of light includes flash circuit, and the flash circuit is connected to the small bus of the flash of light and breaker
Between control bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the conjunction
One end of the normally opened contact of gate position relay is connect with the third contact of the control switch, the tripping position relay
One end of normally opened contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector for the band
It is connect respectively with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing position relay
The other end of the normally opened contact of device is connect with the 5th contact and the 6th contact respectively, the tripping position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th touching
Point is connect with the cathode of control circuit respectively；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash of light
Circuit includes the flashing relay normally-closed contact, flashing relay coil and resistance for being sequentially connected in series setting, and the flash of light after
The both ends of electric apparatus coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and described
Five contacts are connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and described the
Four contacts are connected, and the 6th contact is connected with the 8th contact；
The control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8；
There are four emit white light when the work of the indicator light of connector for the band.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (4)
1. a kind of high-tension switch cabinet inner breaker divide-shut brake acts single lamp instruction device, which is characterized in that including small mother of glistening
There are four indicator light, closing operation position relay and the tripping position relays of connector for line, control switch, band；Wherein,
The small bus of flash of light includes flash circuit, and the flash circuit is connected to the control of the flash of light small bus and breaker
Between bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the closing position
The one end for setting the normally opened contact of relay is connect with the third contact of the control switch, the tripping position relay it is normally opened
One end of contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector difference for the band
It is connect with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing operation position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively, the tripping position relay it is normally opened
The other end of contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th contact point
It is not connect with the cathode of control circuit；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash circuit
Flashing relay normally-closed contact, flashing relay coil and resistance including being sequentially connected in series setting, and the flashing relay
The both ends of coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and five touching
Point is connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and the 4th touching
Point is connected, and the 6th contact is connected with the 8th contact.
2. high-tension switch cabinet inner breaker divide-shut brake acts single lamp instruction device according to claim 1, which is characterized in that
The control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8.
3. high-tension switch cabinet inner breaker divide-shut brake acts single lamp instruction device according to claim 1, which is characterized in that
There are four emit white light when the work of the indicator light of connector for the band.
4. high-tension switch cabinet inner breaker divide-shut brake acts single lamp instruction device according to claim 1, which is characterized in that
Including the small bus that glistens, control switch, band, there are four indicator light, closing operation position relay and the trip position relays of connector
Device；Wherein,
The small bus of flash of light includes flash circuit, and the flash circuit is connected to the control of the flash of light small bus and breaker
Between bus, the small bus of flash of light is connect with the first contact of the control switch and the second contact respectively, the closing position
The one end for setting the normally opened contact of relay is connect with the third contact of the control switch, the tripping position relay it is normally opened
One end of contact is connect with the 4th contact of the control switch；There are four four connectors of the indicator light of connector difference for the band
It is connect with the 5th contact, the 6th contact, the 7th contact and the 8th contact of the control switch；The closing operation position relay
The other end of normally opened contact is connect with the 5th contact and the 6th contact respectively, the tripping position relay it is normally opened
The other end of contact is connect with the 5th contact and the 6th contact respectively；7th contact and the 8th contact point
It is not connect with the cathode of control circuit；
The flash circuit includes that the first flash circuit being arranged in parallel and the second flash circuit are in parallel, first flash circuit
Flashing relay normally-closed contact, flashing relay coil and resistance including being sequentially connected in series setting, and the flashing relay
The both ends of coil are parallel with a capacitor；Second flash circuit includes flashing relay normally opened contact；
After the control switch is in tripping when state, first contact is connected with the third contact, and five touching
Point is connected with the 7th contact；After the control switch is in and closes a floodgate when state, second contact and the 4th touching
Point is connected, and the 6th contact is connected with the 8th contact；
The control switch model LW2-YZ-1a, 4,6a, 40,20,20/F8；
There are four emit white light when the work of the indicator light of connector for the band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231192.1A CN109346382B (en) | 2018-10-22 | 2018-10-22 | Single lamp indicating device for switching-on and switching-off actions of circuit breaker in high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231192.1A CN109346382B (en) | 2018-10-22 | 2018-10-22 | Single lamp indicating device for switching-on and switching-off actions of circuit breaker in high-voltage switch cabinet |
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| CN109346382A true CN109346382A (en) | 2019-02-15 |
| CN109346382B CN109346382B (en) | 2023-11-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514939A (en) * | 2019-09-25 | 2019-11-29 | 海盐伟佳电器科技有限公司 | A kind of mimic-disconnecting switch constituted using multiple relay assemblies |
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| JPH1082820A (en) * | 1996-09-05 | 1998-03-31 | Toshiba Corp | Monitoring device for coil disconnection of wire in circuit breaker |
| CN104034987A (en) * | 2014-06-22 | 2014-09-10 | 国网河北省电力公司衡水供电分公司 | Analog breaker |
| CN104092300A (en) * | 2014-06-30 | 2014-10-08 | 国家电网公司 | 10kV handcart type high-voltage switch cabinet brake-separating monitoring loop |
| CN204758652U (en) * | 2015-06-17 | 2015-11-11 | 国网辽宁省电力有限公司锦州供电公司 | Portable mimic -disconnecting switch with state prompt facility |
| CN205959867U (en) * | 2016-08-16 | 2017-02-15 | 上海舒盈电气有限公司 | Outdoor high pressure spring operation vacuum circuit breaker's control circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514939A (en) * | 2019-09-25 | 2019-11-29 | 海盐伟佳电器科技有限公司 | A kind of mimic-disconnecting switch constituted using multiple relay assemblies |
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| CN109346382B (en) | 2023-11-10 |
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