CN109036909A - The GIS electrical equipment disconnecting link motor power control loop of novel 220kV - Google Patents
The GIS electrical equipment disconnecting link motor power control loop of novel 220kV Download PDFInfo
- Publication number
- CN109036909A CN109036909A CN201810691655.6A CN201810691655A CN109036909A CN 109036909 A CN109036909 A CN 109036909A CN 201810691655 A CN201810691655 A CN 201810691655A CN 109036909 A CN109036909 A CN 109036909A
- Authority
- CN
- China
- Prior art keywords
- control loop
- contact
- disconnecting link
- alternating current
- closing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
Landscapes
- Stopping Of Electric Motors (AREA)
Abstract
The present invention relates to the GIS electrical equipment disconnecting link motor power control loops of novel 220kV a kind of, it is characterised in that: the control loop includes: direct current disconnecting link control loop (4BP1,4BN1), alternating current generator electric power loop (7BP1,7BN1), divide-shut brake circuit (BPR)；Wherein the direct current disconnecting link control loop (4BP1-4BN1) is made of shutting-brake control loop (BP1) and separating brake control loop (BP2) through interlock circuit (B6)；The alternating current generator electric power loop (7BP1,7BN1) is constituted by air switch (ZK), two groups of protection inductance (ML, ML2), thermocouple relay (KT) and with the alternating current generators (M) of two groups of divide-shut brake points (CX ", TX ")；The divide-shut brake circuit (BPR) includes handle (43LR1), the first contact (C1), the second contact (T1), switch knob (C1 '), the opening button (T1 ') of a distant place/on the spot, the switch knob (C1 ') connect control shutting-brake control loop (BP1) with the shutting-brake control loop (BP1) by the first contact (C1), and the opening button (T1 ') connect control separating brake control loop (BP2) with the separating brake control loop (BP2) by the second contact (T1).
Description
Technical field
The present invention relates to power transformation secondary control technical fields, more specifically, being related to a kind of 220kV GIS electrical equipment
Disconnecting link motor power control loop.
Background technique
Existing 220kV GIS device has the following problems:
1., since space is smaller in convergence control cabinet, existing operating platform installation site is higher when operating on platform, controlled converging
When cabinet is operated, operant activity range is limited, and the elbow joint of operating personnel is easy touching convergence control cabinet front relay, inoperative
Terminal and all relays, still remain the risk for accidentally touching relay；
2. operating personnel accidentally touches unbalanced three-phase lines exit relay, after the movement of unbalanced three-phase lines exit relay,
It does not need other criterions and directly exported BRKR Breaker, while accidentally touching other relays and being then possible to accidentally send out remote signals；
3. if needing to increase disconnecting link, earthing knife-switch individual motor power supply directly rectified and improved to control loop, at this time needing
It to be determined in conjunction with On-the-spot factors such as convergence control cabinet wire location, component installation site, personnel's operation logics according to drawing and scene
Former direct current disconnecting link control loop should not have extra circuit, determine that former alternating current generator electric power loop connects with scene according to drawing
Could carry out after the wiring of conductive cable core is correctly equal, it is excessive to be related to circuit, will lead to it is long in time limit, and due to investigation secondary returning
The work such as road, verification cable core require to move secondary cable, or even need to solve wiring core, to avoid running friendship
There is situations such as short circuit in DC loop, should combine to have a power failure as far as possible and carry out.
Summary of the invention
The present invention in order to overcome the deficiencies of the prior art, provides a kind of 220kV GIS electrical equipment disconnecting link motor power control
Circuit, mainly the mechanism interlock of increase disconnecting link (earthing knife-switch) operating mechanism box and redesign equipment disconnecting link (earthing knife-switch)
The control loop of motor power.
In order to reach above-mentioned technical effect, technical scheme is as follows: a kind of novel 220kV GIS electrical equipment
Disconnecting link (earthing knife-switch) motor power control loop, control loop include: direct current disconnecting link control loop, alternating current generator electric power loop,
The handle of a distant place/on the spot, wherein the direct current disconnecting link control loop is by shutting-brake control loop and separating brake control loop through chain time
Road is constituted；The alternating current generator electric power loop mainly by air switch, two groups of protection inductance, thermocouple relay and have two
The alternating current generator M of group divide-shut brake point is constituted；The distant place/handle passes through contact C1 on the spot and the shutting-brake control loop connects
It connects, is connect by contact T1 with the separating brake control loop；The switch knob controls shutting-brake control loop, institute by contact
The opening button stated controls separating brake control loop by contact T1.
The shutting-brake control loop is mainly by normally opened closing contact, normally closed separating brake contact, self-sustaining point SL1 and power-off
The closing coil for losing excitation is constituted；The separating brake control loop is mainly by normally opened separating brake contact, normally closed closing contact, self-insurance
The opening coil composition for losing excitation is held a little and powers off, the shutting-brake control loop and separating brake control loop pass through thermocouple node
DC loop is connected and composed with self-sustaining normally opened contact and interlock circuit.
Wherein shutting-brake control loop through a distant place/handle, the normally opened contact of closing relay CX, separating brake relay TX on the spot
Normally-closed contact and self-holding contact SL1, and be connected by self-sustaining normally opened contact SL3 and interlock circuit；Separating brake control loop
Through a distant place/normally-closed contact and self-holding contact of handle, the normally opened contact of separating brake relay TX, closing relay CX on the spot
SL2, and be connected by self-sustaining normally opened contact SL3 and interlock circuit；Alternating current generator electric power loop is spaced apart ZK, electricity by motor power
Machine is protected inductance M and M1, is constituted via the motor M of electric bridge ZH1 and ZH2.
After order of closing a floodgate is assigned, the handle 43LR1 of a distant place/on the spot is switched to position " on the spot " by operator, in disconnecting link
In divide-shut brake circuit, after pressing switch knob C1, the action situation of direct current disconnecting link control loop are as follows: closing relay CX movement,
Closing coil CX ' is attracted, and reaches self-sustaining with being connected to for CX-6 by closing contact CX-5, sub-gate circuit coil TX ' is without electricity, often
Close node TX-21, TX-22 closure, self-sustaining point SL1-NC and SL1-C closure, closing coil CX ' continuous excitation, through thermocouple after
Electric appliance KT ' node KT-95 and KT-96 are connected by self-sustaining normally opened contact SL3 and interlock circuit；Ac circuit: closing circuit
Constant conduction, alternating current generator electric power loop power supply is powered by ZK, through electric motor protecting inductance ML pressure-stabilizing supercharging, this when due to
Closing coil CX ' continuous excitation, alternating current generator power supply closing contact CX " -4, CX " -3 are persistently closed, by electric bridge ZH1, disconnecting link
Motor M and ZH2 and alternating current generator power supply closing contact CX " -2, CX " -1, through thermocouple relay KT to the electric current of disconnecting link motor
Load protection, realizes the closing operation of 220kV GIS disconnecting link.
After separating brake order is assigned, the handle of a distant place/on the spot is switched to position " on the spot " by operator, in disconnecting link opening and closing lock
In circuit, press opening button, DC loop: separating brake relay TX movement, opening coil TX ' are attracted, and pass through separating brake contact TX-
5 reach self-sustaining with being connected to for TX-6, and closing circuit coil CX ' is without electricity, normally closed node CX-21, CX-22 closure, self-sustaining point
SL2-NC and SL2-C closure, opening coil TX ' continuous excitation, through thermocouple relay KT ' node KT-95 and KT-96, by certainly
Maintain a normally open contact SL3 and interlock circuit conducting；Ac circuit: sub-gate circuit constant conduction, alternating current generator electric power loop power supply
It is powered by ZK, through electric motor protecting inductance M and M1 pressure-stabilizing supercharging, this when is due to opening coil TX ' continuous excitation, exchange
Motor power closing contact TX " -4, TX " -3 are persistently closed, electromechanical by electric bridge ZH1, disconnecting link motor M and ZH2 and alternating current
Source closing contact TX " -2, TX " -1 protect through current capacity of the thermocouple relay KT to disconnecting link motor, realize 220kV GIS knife
The sub-switching operation of lock.
The secondary control loop of GIS device disconnecting link is DC loop, and motor power circuit uses ac circuit, this
Design has the beneficial effect that
The interlock circuit of 1.GIS equipment adds electric blocking between unit using unit electric blocking, and electric blocking is relatively reliable；
2. the function of having over current of motor work, overtime work to automatically power off in DC control circuit, prevents the auxiliary such as CX " from touching
Point switching is not in place to cause motor M to work long hours, and avoids motor because electric fault accident event occurs for overheat；
3. in circuit self-holding circuit design can make reclosing command issue after ensure disconnecting link (earthing knife-switch) opening and closing in place it
Preceding closing coil CX/ opening coil TX can the energy such as reliable excitation and then relevant contacts such as CX " -4, CX " -3, TX " -4 and TX " -3
Action message effectively prevents the problems such as jumping characteristic closes a floodgate and switch frequently disconnected conjunction and switch operation not in place.
Design provided by the invention is not only solved causes unbalanced three-phase lines outlet movement to be jumped because personnel accidentally touch relay
The problem of switch or accidentally hair remote signals, the design method of self-holding circuit can guarantee that disconnecting link closes after issuing divide-shut brake instruction
Assign to before position coil can action message, more effectively avoid that jumping characteristic closes a floodgate and switch is frequently disconnected closes and switch operation
The problems such as not in place.
Detailed description of the invention
Fig. 1 is 220kV GIS electrical equipment disconnecting link motor power control drawing of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
As shown in Fig. 1, a kind of novel 220kV GIS electrical equipment disconnecting link motor power control loop, control loop
It include: direct current disconnecting link control loop 4BP1-4BN1, alternating current generator electric power loop 7BP1-7BN1, the handle 43LR1 of a distant place/on the spot,
Wherein the direct current disconnecting link control loop 4BP1-4BN1 is by shutting-brake control loop BP1 and separating brake control loop BP2 through chain
Circuit B6 is constituted；The alternating current generator electric power loop 7BP1-7BN1 mainly by air switch ZK, two groups of protection inductance ML1 and
ML2, thermocouple relay KT and the alternating current generator M for having two groups of divide-shut brake point CX " and TX " are constituted；The distant place/on the spot
Hand 43LR1 is connect by contact C1 with the shutting-brake control loop BP1, and contact T1 and the separating brake control loop BP2 are passed through
Connection；Switch knob C1 ' controls shutting-brake control loop BP1 by contact C1, and the opening button T1 ' is controlled by contact T1
Separating brake control loop BP2.
Mainly by direct current disconnecting link control loop 4BP1-4BN1, (direct current power source voltage is control loop provided by the invention
220V), alternating current generator electric power loop 7BP1-7BN1 (AC supply voltage 220V), a distant place/on the spot handle 43LR1, divide-shut brake
Circuit BPR and interlock circuit composition.The direct current disconnecting link control loop 4BP1-4BN1 is by shutting-brake control loop BP1 and divides
Lock control loop BP2 is constituted through interlock circuit B6, and the shutting-brake control loop BP1 is mainly by normally opened closing contact CX, normally closed
The closing coil CX ' that separating brake contact TX, self-sustaining point SL1 and power-off lose excitation is constituted, the separating brake control loop BP2
Opening coil TX ' the structure of excitation is mainly lost by normally opened separating brake contact TX, normally closed closing contact CX, self-sustaining point SL2 and power-off
At two DC control circuits connect and compose direct current by thermocouple node KT ' and self-sustaining normally opened contact SL3 and interlock circuit and return
Road；The alternating current generator electric power loop 7BP1-7BN1 (or BP3) is mainly by being spaced apart ZK, two groups of protection inductance ML1 and ML2, heat
Even relay KT and the alternating current generator M for having two groups of divide-shut brake point CX " and TX " are constituted；The handle of the distant place/on the spot
43LR1 is connect by C1 contact with shutting-brake control loop BP1, is connect by T1 contact with separating brake control loop BP2；Described
Switch knob C1 ' controls shutting-brake control loop by contact C1, and the opening button T1 ' controls separating brake control by contact T1
Circuit processed.
As shown in Figure 1, the handle of a distant place/on the spot is switched to position " on the spot " by operator, is returned after order of closing a floodgate is assigned
Road contact C1 conducting, in disconnecting link opening and closing lock circuit, presses switch knob, direct current disconnecting link control loop: closing relay CX is dynamic
Make, closing coil CX ' is attracted, and reaches self-sustaining with being connected to for CX-6 by closing contact CX-5, sub-gate circuit coil TX ' nothing
Electricity, normally closed node TX-21, TX-22 closure, self-sustaining point SL1-NC and SL1-C closure, closing coil CX ' continuous excitation, through heat
Even relay KT ' node KT-95 and KT-96 are connected by self-sustaining normally opened contact SL3 and interlock circuit；Ac circuit: it closes
Lock circuit constant conduction, alternating current generator electric power loop power supply are powered by ZK, are increased through electric motor protecting inductance ML1 and ML2 pressure stabilizing
Pressure, this when, alternating current generator power supply closing contact CX " -4, CX " -3 are lasting to be closed due to closing coil CX ' continuous excitation,
By electric bridge ZH1, disconnecting link motor M and ZH2 and alternating current generator power supply closing contact CX " -2, CX " -1, through thermocouple relay KT
Current capacity protection to disconnecting link motor, realizes the closing operation of 220kV GIS disconnecting link (earthing knife-switch).
After separating brake order is assigned, the handle of a distant place/on the spot is switched to position " on the spot " by operator, and circuit contact T1 is led
It is logical, in disconnecting link opening and closing lock circuit, opening button is pressed, direct current disconnecting link control loop: separating brake relay TX movement, opening coil
TX ' is attracted, and reaches self-sustaining with being connected to for TX-6 by separating brake contact TX-5, closing circuit coil CX ' is without electricity, normally closed node
CX-21, CX-22 closure, self-sustaining point SL2-NC and SL2-C closure, opening coil TX ' continuous excitation, through thermocouple relay
KT ' node KT-95 and KT-96 are connected by self-sustaining normally opened contact SL3 and interlock circuit；Ac circuit: sub-gate circuit is lasting
Conducting, alternating current generator electric power loop power supply is by ZK energization, through electric motor protecting inductance M and M1 pressure-stabilizing supercharging, this when due to
Opening coil TX ' continuous excitation, alternating current generator power supply closing contact TX " -4, TX " -3 are persistently closed, by electric bridge ZH1, disconnecting link
Motor M and ZH2 and alternating current generator power supply closing contact TX " -2, TX " -1, through thermocouple relay KT to the electric current of disconnecting link motor
Load protection, realizes the sub-switching operation of 220kV GIS disconnecting link (earthing knife-switch).
Interlock circuit B6 be concatenate into logical node, realize switch, disconnecting link position between electricity interlock, with behaviour
The mechanical interlocking made between mechanism constitutes double shield, improves the reliability and stability of GIS device switch operation.
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (6)
1. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV a kind of, it is characterised in that: the control is returned
Road includes: direct current disconnecting link control loop (4BP1,4BN1), alternating current generator electric power loop (7BP1,7BN1), divide-shut brake circuit
(BPR)；Wherein the direct current disconnecting link control loop (4BP1,4BN1) is by shutting-brake control loop (BP1) and separating brake control loop
(BP2) it is constituted through interlock circuit (B6)；The alternating current generator electric power loop (7BP1,7BN1) is by air switch (ZK), two groups
Protect inductance (ML, ML2), thermocouple relay (KT) and alternating current generator (M) structure for having two groups of divide-shut brake points (CX ", TX ")
At；The divide-shut brake circuit (BPR) includes a distant place/handle (43LR1), the first contact (C1), the second contact (T1), conjunction on the spot
Lock button (C1 '), opening button (T1 '), the switch knob (C1 ') pass through the first contact (C1) and the shutting-brake control loop
(BP1) it connects, the opening button (T1 ') is connect by the second contact (T1) with the separating brake control loop (BP2).
2. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV according to claim 1 a kind of, special
Sign is: the shutting-brake control loop (BP1) is by normally opened closing contact (CX), normally closed separating brake contact (TX), self-sustaining point
(SL1) and power-off lose excitation closing coil (CX ') constitute.
3. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV according to claim 1 a kind of, special
Sign is: the separating brake control loop (BP2) is by normally opened separating brake contact (TX), normally closed closing contact (CX), self-sustaining point
(SL2) and power-off lose excitation opening coil (TX ') constitute.
4. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV according to claim 1 a kind of, special
Sign is: the alternating current generator (M) connects via electric bridge (ZH1, ZH2) and the alternating current generator electric power loop (7BP1,7BN1)
It is logical.
5. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV according to claim 4 a kind of, special
Sign is: after order of closing a floodgate is assigned, operator switches to the handle (43LR1) of a distant place/on the spot with regard to position, the first contact
(C1) be connected, in disconnecting link opening and closing lock circuit, press switch knob (C1 '), the direct current disconnecting link control loop (4BP1,
In 4BN1), closing relay (CX) movement, closing coil (CX ') is attracted, is reached by the connection of closing contact (CX-5, CX-6)
To self-sustaining, sub-gate circuit coil (TX ') is without electricity, normally closed node (TX-21, TX-22) closure, self-sustaining point (SL1-NC, SL1-
C it) is closed, closing coil (CX ') continuous excitation, the node (KT-95, KT-96) through thermocouple relay (KT '), by self-sustaining
Normally opened contact (SL3) and interlock circuit (B6) conducting；In the alternating current generator electric power loop (7BP1,7BN1), closing circuit
The power supply of constant conduction, alternating current generator electric power loop (7BP1,7BN1) is powered by the air switch (ZK), through electric motor protecting
Inductance (ML1, ML2) pressure-stabilizing supercharging, at this time due to closing coil (CX ') continuous excitation, the closing contact of alternating current generator power supply
(CX " -4, CX " -3) persistently be closed, by electric bridge (ZH1, ZH2), motor (M), alternating current generator power supply closing contact (CX " -2,
CX " -1) and thermocouple relay (KT) current capacity of alternating current generator (M) is protected, realize the combined floodgate behaviour of the GIS disconnecting link of 220kV
Make.
6. the GIS electrical equipment disconnecting link motor power control loop of novel 220kV according to claim 4 a kind of, special
Sign is: after separating brake order is assigned, operator switches to the handle (43LR1) of a distant place/on the spot with regard to position, the first contact
(T1) be connected, in disconnecting link opening and closing lock circuit, press opening button (T1 '), the direct current disconnecting link control loop (4BP1,
In 4BN1), separating brake relay (TX) movement, opening coil (TX ') is attracted, is reached by the connection of separating brake contact (TX-5, TX-6)
To self-sustaining, closing circuit coil (CX ') is without electricity, normally closed node (CX-21, CX-22) closure, self-sustaining point (SL2-NC, SL2-
C it) is closed, opening coil (TX ') continuous excitation is normal by self-sustaining through thermocouple relay (KT ') node (KT-95, KT-96)
Open contact (SL3) and interlock circuit (B6) conducting；In the alternating current generator electric power loop (7BP1,7BN1): sub-gate circuit is held
Continuous conducting, alternating current generator electric power loop power supply are powered by air switch (ZK), are increased through (the ML1, ML2) pressure stabilizing of electric motor protecting inductance
Pressure, at this time due to opening coil (TX ') continuous excitation, alternating current generator power supply closing contact (TX " -4, TX " -3) is persistently closed, warp
Cross electric bridge (ZH1, ZH2), alternating current generator (M), alternating current generator power supply closing contact (TX " -2, TX " -1) and thermocouple relay (KT)
Current capacity protection to alternating current generator (M), realizes the sub-switching operation of the GIS disconnecting link of 220kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691655.6A CN109036909A (en) | 2018-10-31 | 2018-10-31 | The GIS electrical equipment disconnecting link motor power control loop of novel 220kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691655.6A CN109036909A (en) | 2018-10-31 | 2018-10-31 | The GIS electrical equipment disconnecting link motor power control loop of novel 220kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036909A true CN109036909A (en) | 2018-12-18 |
Family
ID=65521879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810691655.6A Pending CN109036909A (en) | 2018-10-31 | 2018-10-31 | The GIS electrical equipment disconnecting link motor power control loop of novel 220kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277271A (en) * | 2019-06-28 | 2019-09-24 | 国网河南省电力公司经济技术研究院 | A kind of intelligent substation tri-station isolating switch and its control loop |
| CN112289619A (en) * | 2020-10-21 | 2021-01-29 | 山东泰开智能配电有限公司 | Control device for grounding switch |
| CN112838511A (en) * | 2020-08-13 | 2021-05-25 | 平高集团有限公司 | Combined electrical appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893748U (en) * | 2010-08-20 | 2011-07-06 | 河北宇牛炊事机械有限公司 | Electric operating mechanism of high-voltage three-position isolating switch |
| CN205039091U (en) * | 2015-10-23 | 2016-02-17 | 山东达驰高压开关有限公司 | Isolator behaviour moves mechanism controls protection return circuit |
| CN205862633U (en) * | 2016-04-07 | 2017-01-04 | 国网浙江省电力公司台州供电公司 | A kind of Power system tranining device |
| CN207424614U (en) * | 2017-11-27 | 2018-05-29 | 国家电网公司 | A kind of circuit-breaker remote control operation device |
| CN108682579A (en) * | 2018-05-23 | 2018-10-19 | 云南电网有限责任公司保山供电局 | A kind of disconnecting switch motor power distant place control method |
-
2018
- 2018-10-31 CN CN201810691655.6A patent/CN109036909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893748U (en) * | 2010-08-20 | 2011-07-06 | 河北宇牛炊事机械有限公司 | Electric operating mechanism of high-voltage three-position isolating switch |
| CN205039091U (en) * | 2015-10-23 | 2016-02-17 | 山东达驰高压开关有限公司 | Isolator behaviour moves mechanism controls protection return circuit |
| CN205862633U (en) * | 2016-04-07 | 2017-01-04 | 国网浙江省电力公司台州供电公司 | A kind of Power system tranining device |
| CN207424614U (en) * | 2017-11-27 | 2018-05-29 | 国家电网公司 | A kind of circuit-breaker remote control operation device |
| CN108682579A (en) * | 2018-05-23 | 2018-10-19 | 云南电网有限责任公司保山供电局 | A kind of disconnecting switch motor power distant place control method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277271A (en) * | 2019-06-28 | 2019-09-24 | 国网河南省电力公司经济技术研究院 | A kind of intelligent substation tri-station isolating switch and its control loop |
| CN110277271B (en) * | 2019-06-28 | 2021-03-23 | 国网河南省电力公司经济技术研究院 | Three-station isolating switch of intelligent substation and control loop thereof |
| CN112838511A (en) * | 2020-08-13 | 2021-05-25 | 平高集团有限公司 | Combined electrical appliance |
| CN112838511B (en) * | 2020-08-13 | 2023-08-15 | 平高集团有限公司 | Combined electrical apparatus |
| CN112289619A (en) * | 2020-10-21 | 2021-01-29 | 山东泰开智能配电有限公司 | Control device for grounding switch |
| CN112289619B (en) * | 2020-10-21 | 2023-09-15 | 山东泰开智能配电有限公司 | Control device for grounding switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109036909A (en) | The GIS electrical equipment disconnecting link motor power control loop of novel 220kV | |
| CN206698015U (en) | Power distribution station institute automatic control terminal | |
| CN108933431A (en) | Starting protection circuit and starting protection system for nuclear power station turning motor | |
| CN206195330U (en) | Protection of intelligence breaker control circuit and monitoring devices | |
| CN106130046B (en) | A kind of AC three-phase load automatic-balancing system | |
| CN214205087U (en) | Four-incoming-line one-bus-coupler interlocking system of low-voltage power distribution system | |
| CN203352192U (en) | Direct current switch device | |
| CN205901423U (en) | Contactor type dual -power -supply switching device with wrong looks, open -phase protection function | |
| CN208722801U (en) | A kind of non-separating brake mistake conjunction isolation switch device of antiground disconnecting link | |
| CN205123236U (en) | Distribution lines protection device | |
| CN106783457A (en) | Jerk self-lock switch and automation equipment | |
| CN206460936U (en) | Jerk self-lock switch and automation equipment | |
| CN203707774U (en) | Power distribution system with two incoming line switches and one interconnection switch | |
| CN207442445U (en) | Adaptive throw of busbar interconnection moves back circuit and back brake control system | |
| CN100545974C (en) | Multifunction safety knife switch | |
| CN109193583A (en) | A kind of internal bridge stub protection adaptively throws the safety control moved back | |
| CN201022068Y (en) | Device for blocking electrical connection between power supply input and output end | |
| CN209358241U (en) | A kind of internal bridge stub protection adaptively throws the control circuit moved back | |
| CN201204570Y (en) | AC contactless control switch | |
| CN208257392U (en) | A kind of HV motor protection device | |
| CN207651433U (en) | A kind of Intelligent leakage protection switch | |
| CN207367902U (en) | A kind of quick acting switching-off device | |
| CN207689955U (en) | A kind of DC control protective device for realizing switching value circuit on-bne repair | |
| CN207731877U (en) | Single-phase intelligent bus driver magnet remaining AC contactor | |
| CN101630586B (en) | Air switch preventing voltage transformer secondary side anti-charge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
|
| RJ01 | Rejection of invention patent application after publication |