CN106768954A - 6kV medium voltage contactor multi-functional mechanical features Testbeds - Google Patents
6kV medium voltage contactor multi-functional mechanical features Testbeds Download PDFInfo
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- CN106768954A CN106768954A CN201611233196.4A CN201611233196A CN106768954A CN 106768954 A CN106768954 A CN 106768954A CN 201611233196 A CN201611233196 A CN 201611233196A CN 106768954 A CN106768954 A CN 106768954A
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- separating brake
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention belongs to nuclear power plant equipment service technique field, specifically related to a kind of 6kV medium voltage contactors multi-functional mechanical features Testbed purpose is to develop a 6kV medium voltage contactor multi-functional mechanical features Testbed, and in the past lengthy and jumbled test wire all can be incorporated into this testing stand；Warm four kinds of 6kV medium voltage contactor modes of connection of model in testing stand, as long as can just be switched with the wiring of the various circuits of control realization by operating desk；Testing stand signal lamp can feed back the divide-shut brake situation of contactor and relay, realize remote monitoring function；For the divide-shut brake attribute testing for measuring 6kV medium voltage contactors provides facility.Multi-functional mechanical features Testbed of the invention, four kinds of wiring switchings of the contactor experiment of model only need to can be just realized by switching push button, the measurement of 6kV medium voltage contactor branch wire times can be carried out with connecting dividing lock characteristic instrument, can preferably avoid being made a mistake when wiring is changed, the test period of original 2 hours or so was foreshortened in 15 minutes.
Description
Technical field
The invention belongs to nuclear power plant equipment service technique field, and in particular to a kind of 6kV medium voltage contactors multi-functional mechanical
Features Testbed.
Background technology
6kV medium voltage contactors are the main equipment of nuclear power plant's medium-voltage distribution, are also power supply unit in station service electrical system
Nucleus equipment.Two factory of the Qin, 3, No. 4 unit 6kV medium voltage contactor quantity are more (150, full factory), and model is also more：There is VSC types (machinery
Keep, electrically keep) and four kinds of models of V7 types (machinery keeps, electrically keeps)., it is necessary to many when annual overhaul and maintenance repair
The different types of contactor of bar bus carries out annual test, due to needing the contactor quantity of annual test many, and will basis during experiment
Different model change wiring, wiring is cumbersome, and greatly waste is caused to manpower, and the anxiety personnel's wiring of overhaul duration is easy
Error.Based on this, the operating desk that making one is used for experimental wiring conversion is particularly urgent, and based on this, we are invented in a kind of 6kV
Crimping tentaculum multi-functional mechanical features Testbed, the testing stand is not only only capable of doing the operating mechanism acting characteristic experiment of contactor,
Simultaneously also for the divide-shut brake attribute testing of contactor provides facility.
The content of the invention
It is an object of the invention to develop a 6kV medium voltage contactor multi-functional mechanical features Testbed, can be by the past
Lengthy and jumbled test wire is all incorporated into this testing stand；Warm four kinds of modes of connection of model in testing stand, as long as logical
Crossing operating desk can just be switched with the wiring of the various circuits of control realization；Testing stand signal lamp can feed back 6kV medium voltage contactors and
The divide-shut brake situation of relay, realizes remote monitoring function；For the divide-shut brake attribute testing for measuring medium voltage contactor provides facility.
What the present invention was realized in：
A kind of 6kV medium voltage contactors multi-functional mechanical features Testbed, it is characterised in that：Division is provided with testing stand
Lock characteristic instrument interface and 110V electric power incoming line interfaces；The combined floodgate interface of divide-shut brake characteristic instrument interface is respectively with switch knob LA1's
Crimped in the node 1 of node 4, electrically and mechanically type switching relay K4, the node 5 of closing relay K1, V7 and VSC types 6kV
The node 6 and node 4 of tentaculum switching relay K3 are connected；The separating brake interface of divide-shut brake characteristic instrument interface respectively with opening button
The node 4 of LA2, the electrically and mechanically node 2 of type 6kV medium voltage contactors switching relay K4 and 6kV medium voltage contactor bodies
Node 11 connect；The positive pole of 110V electric power incoming line interfaces by power switch QF nodes 32 respectively with separating brake contactor K2,
The node 3 of opening button LA2, the node 12 of closing relay K1, the section of 6kV medium voltage contactor body combined floodgate auxiliary nodes BB2
Point 23, node 16, one end of power supply indicator HD, V7 the and VSC types 6kV of 6kV medium voltage contactor body separating brake auxiliary nodes BB1
The 11 of medium voltage contactor switching button LA3, the 23 and V7 and VSC of electrically and mechanically type 6kV medium voltage contactors switching button LA4
The node 8 of type 6kV medium voltage contactor switching relays K3 is connected；The negative pole of 110V electric power incoming line interfaces is by power switch QF points
Coil 13, one end of relay combined floodgate indicator lamp JD1, one end of relay separating brake indicator lamp JD2 not with closing relay K1,
The loop A 2 of separating brake contactor K2, one end of 6kV medium voltage contactor body combined floodgate indicator lamps LD, 6kV medium voltage contactors body point
One end of lock indicator lamp YD, the other end of power supply indicator HD, the line of V7 and VSC type 6kV medium voltage contactor switching relays K3
Circle 13 and node 5, the section of the electrically and mechanically coil 13 and node 12 of type switching relay K4 and 6kV medium voltage contactor bodies
Point 15 is connected；
The node 31 of separating brake contactor K2 is connected with the node 9 of the node 3 of switch knob LA1 and closing relay K1；Electricity
The node 9 of gas and mechanical type switching relay K4 is connected with the coil 14 of closing relay K1；The node 8 of closing relay K1 with
The other end connection of relay combined floodgate indicator lamp JD1；The node 4 of closing relay K1 is another with relay separating brake indicator lamp JD2's
One end connects；Electrically and mechanically the node 10 of type switching relay K4 is connected with the loop A 1 of separating brake contactor K2；Middle press contacts
The node 13 of device body combined floodgate auxiliary node BB2 is connected with the other end of 6kV medium voltage contactor body combined floodgate indicator lamps LD；Middle pressure
The node 6 of contactor body separating brake auxiliary node BB1 is connected with the other end of 6kV medium voltage contactor body separating brake indicator lamps YD；
The 12 of V7 and VSC type switching buttons LA3 are connected with the coil 14 of V7 and VSC type switching relays K3；Electrically and mechanically type conversion
The 24 of button LA4 are connected with the coil 14 of electrically and mechanically type switching relay K4；The node of V7 and VSC type switching relays K3
12 are connected with the node 5 of 6kV medium voltage contactor bodies；The node 10 of V7 and VSC type switching relays K3 and 6kV medium voltage contactors
The node 4 of body is connected；The node 9 of V7 and VSC type switching relays K3 is connected with the node 14 of 6kV medium voltage contactor bodies；
The node 22 of separating brake contactor K2 is connected with the node 2 of V7 and VSC type switching relays K3；The node 21 of separating brake contactor K2 with
The node 1 of V7 and VSC type switching relays K3 is connected；Electrically and mechanically press contacts in the node 8 of type switching relay K4 and 6kV
The node 21 of device body is connected.
Power switch QF as described above is realized using air switch.
A kind of 6kV medium voltage contactors multi-functional mechanical characteristic test system, including pressed in 6kV as claimed in claim 1
Contactor multi-functional mechanical features Testbed and divide-shut brake characteristic instrument；The output end of divide-shut brake characteristic instrument and 6kV medium voltage contactors
Divide-shut brake characteristic instrument interface connection in multi-functional mechanical features Testbed.
Divide-shut brake characteristic instrument as described above sends pulse to 6kV medium voltage contactor multi-functional mechanicals features Testbed to be believed
Number, the signal that simulation switch knob LA1 and opening button LA2 sends.
The beneficial effects of the invention are as follows：
Multi-functional mechanical features Testbed of the invention, only need to can just realize four kinds of contacts of model by switching push button
The wiring switching of device experiment, can carry out the measurement of contactor branch wire time with connecting dividing lock characteristic instrument, can preferably keep away
Exempt to be made a mistake when wiring is changed, the test period of original 2 hours or so was foreshortened in 15 minutes, greatly improve work effect
Rate, has nearly 60 contactors to be tested in Qin Erchang D305 and D404 overhauls, is that nearly 100 man-hours shorten in working group,
Obtain larger economic benefit.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of 6kV medium voltage contactors multi-functional mechanical features Testbed of the invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of 6kV medium voltage contactors multi-functional mechanical features Testbed, it is characterised in that：On testing stand
It is provided with divide-shut brake characteristic instrument interface and 110V electric power incoming line interfaces；The combined floodgate interface of divide-shut brake characteristic instrument interface respectively with combined floodgate
The node 1 of the node 4 of button LA1, electrically and mechanically type switching relay K4, the node 5 of closing relay K1, V7 and VSC types
The node 6 and node 4 of 6kV medium voltage contactor switching relays K3 are connected；The separating brake interface of divide-shut brake characteristic instrument interface respectively with
Crimped in the node 2 and 6kV of the node 4 of opening button LA2, electrically and mechanically type 6kV medium voltage contactors switching relay K4
The node 11 of tentaculum body is connected；The positive pole of 110V electric power incoming line interfaces is by power switch QF respectively with separating brake contactor K2's
Node 32, the node 3 of opening button LA2, the node 12 of closing relay K1,6kV medium voltage contactor body combined floodgate auxiliary nodes
The node 23 of BB2, the node 16 of 6kV medium voltage contactor body separating brake auxiliary nodes BB1, one end of power supply indicator HD, V7 and
VSC type 6kV medium voltage contactor switching buttons LA3 11, electrically and mechanically type 6kV medium voltage contactors switching button LA4 23 with
And the node 8 of V7 and VSC type 6kV medium voltage contactor switching relays K3 is connected；The negative pole of 110V electric power incoming line interfaces is by electricity
Source switch QF coil 13, one end of relay combined floodgate indicator lamp JD1, relay separating brake indicator lamps respectively with closing relay K1
Crimped in one end, the loop A 2 of separating brake contactor K2, one end, the 6kV of 6kV medium voltage contactor body combined floodgate indicator lamps LD of JD2
One end of tentaculum body separating brake indicator lamp YD, the other end of power supply indicator HD, the conversion of V7 and VSC type 6kV medium voltage contactors after
Press contacts in the coil 13 and node 12 and 6kV of the coil 13 and node 5 of electrical equipment K3, electrically and mechanically type switching relay K4
The node 15 of device body is connected；
The node 31 of separating brake contactor K2 is connected with the node 9 of the node 3 of switch knob LA1 and closing relay K1；Electricity
The node 9 of gas and mechanical type switching relay K4 is connected with the coil 14 of closing relay K1；The node 8 of closing relay K1 with
The other end connection of relay combined floodgate indicator lamp JD1；The node 4 of closing relay K1 is another with relay separating brake indicator lamp JD2's
One end connects；Electrically and mechanically the node 10 of type switching relay K4 is connected with the loop A 1 of separating brake contactor K2；Middle press contacts
The node 13 of device body combined floodgate auxiliary node BB2 is connected with the other end of 6kV medium voltage contactor body combined floodgate indicator lamps LD；Middle pressure
The node 6 of contactor body separating brake auxiliary node BB1 is connected with the other end of 6kV medium voltage contactor body separating brake indicator lamps YD；
The 12 of V7 and VSC type switching buttons LA3 are connected with the coil 14 of V7 and VSC type switching relays K3；Electrically and mechanically type conversion
The 24 of button LA4 are connected with the coil 14 of electrically and mechanically type switching relay K4；The node of V7 and VSC type switching relays K3
12 are connected with the node 5 of 6kV medium voltage contactor bodies；The node 10 of V7 and VSC type switching relays K3 and 6kV medium voltage contactors
The node 4 of body is connected；The node 9 of V7 and VSC type switching relays K3 is connected with the node 14 of 6kV medium voltage contactor bodies；
The node 22 of separating brake contactor K2 is connected with the node 2 of V7 and VSC type switching relays K3；The node 21 of separating brake contactor K2 with
The node 1 of V7 and VSC type switching relays K3 is connected；Electrically and mechanically press contacts in the node 8 of type switching relay K4 and 6kV
The node 21 of device body is connected.In the present embodiment, power switch QF is realized using air switch.
Operation principle of the invention is as follows：
(1) carrying out 6kV medium voltage contactor breaking-closing operating processes using testing stand of the invention is：
Testing stand is accessed into 110V dc sources, and power turn-on switch QF, the node of 6kV medium voltage contactor bodies first
15 obtain negative electricity, and power supply indicator HD is bright.
1. when being tested as the electric maintenance 6kV medium voltage contactors of V7 types, by the conversion of V7 and VSC type 6kV medium voltage contactors
Button LA3 is threaded to V7 types (disconnecting) and electrically and mechanically type 6kV medium voltage contactors switching button LA4 is threaded to electric maintenance
(disconnecting).
Close a floodgate：Switch knob LA1 is pressed, closing relay K1 obtains electric, the normally opened contact of closing relay K1 (i.e. node 5
With node 9) closure so that closing circuit obtains electric holding, and the node 5 of 6kV medium voltage contactor bodies obtains electric.Separating brake contactor K2 is not
Obtain electric, the normally-closed contact (i.e. node 21 and node 22) of separating brake contactor K2 is remained up, the node of 6kV medium voltage contactor bodies
4 connect with 14, and 6kV medium voltage contactors body closes a floodgate.JD1 is bright for relay combined floodgate indicator lamp, and 6kV medium voltage contactors body closes a floodgate and refers to
Show that lamp LD is bright.
Separating brake：Opening button LA2 is pressed, separating brake contactor K2 obtains electric, the normally-closed contact of separating brake contactor K2 (i.e. node 31
With node 32) disconnect, closing circuit dead electricity, the dead electricity of node 5 of 6kV medium voltage contactor bodies, 6kV medium voltage contactors body point
Lock.JD2 is bright for relay separating brake indicator lamp, and YD is bright for 6kV medium voltage contactor body separating brake indicator lamps.
2. when being tested as V7 types machinery maintenance 6kV medium voltage contactors, by the conversion of V7 and VSC type 6kV medium voltage contactors
Button LA3 be threaded to V7 types (disconnect), electrically and mechanically type 6kV medium voltage contactors switching button LA4 be threaded to mechanical maintenance (i.e.
Closure)：Electrically and mechanically type 6kV medium voltage contactors switching relay K4 obtains electric, electrically and mechanically the conversion of type 6kV medium voltage contactors
Relay K4 normally opened contacts (i.e. node 8 and node 12) are closed.The node 21 of 6kV medium voltage contactor bodies obtains negative electricity.
Close a floodgate：Press switch knob LA1,6kV medium voltage contactor body node 5 it is electric, separating brake contactor K2 not it is electric,
The normally-closed contact (i.e. node 21 and node 22) of separating brake contactor K2 is remained up, the node 4 and 14 of 6kV medium voltage contactor bodies
Connect, 6kV medium voltage contactors body closes a floodgate.JD2 is bright for relay separating brake indicator lamp, 6kV medium voltage contactor body combined floodgate indicator lamps
LD is bright.
Separating brake：The node 11 for pressing opening button LA2,6kV medium voltage contactor body connects positive electricity, 6kV medium voltage contactors
Body sub-gate circuit obtains electric, 6kV medium voltage contactor body separating brakes.JD2 is bright for relay separating brake indicator lamp, 6kV medium voltage contactor sheets
YD is bright for body separating brake indicator lamp.
3. when being tested as the electric maintenance 6kV medium voltage contactors of VSC types, by the conversion of V7 and VSC type 6kV medium voltage contactors
Button LA3 is threaded to VSC types (closing), V7 and VSC type 6kV medium voltage contactor switching relays K3 obtains electric, and the normally opened nodes of K3 are closed
Close, the node 5 of 6kV medium voltage contactor bodies obtains positive electricity, and node 14 obtains negative electricity.Electrically and mechanically type switching button LA4 is threaded to electricity
Maintenance (disconnects).
Close a floodgate：Switch knob LA1 is pressed, closing relay K1 obtains electric, the normally opened contact of closing relay K1 (i.e. node 5
With node 9) closure so that closing circuit obtains electric holding, and the node 4 of 6kV medium voltage contactor bodies obtains electric.6kV medium voltage contactors
Body closes a floodgate.JD1 is bright for relay combined floodgate indicator lamp, and LD is bright for 6kV medium voltage contactor body combined floodgate indicator lamps.
Separating brake：Opening button LA2 is pressed, separating brake contactor K2 obtains electric, the normally-closed contact of separating brake contactor K2 (i.e. node 31
With node 32) disconnect, the dead electricity of node 4 of 6kV medium voltage contactor bodies, 6kV medium voltage contactor body separating brakes.Relay separating brake refers to
Show that lamp JD2 is bright, YD is bright for 6kV medium voltage contactor body separating brake indicator lamps.
4. when being tested as VSC types machinery maintenance 6kV medium voltage contactors, by the conversion of V7 and VSC type 6kV medium voltage contactors
Button LA3 is threaded to VSC types (closing), and electrically and mechanically type 6kV medium voltage contactors switching button LA4 is threaded to mechanical maintenance
(closing).V7 and VSC type 6kV medium voltage contactor switching relays K3 obtains electric, the normally opened node closures of K3,6kV medium voltage contactors
The node 5 of body obtains positive electricity, and node 14 obtains negative electricity.Electrically and mechanically type 6kV medium voltage contactors switching relay K4 obtains electric, electrically
Closed with mechanical type 6kV medium voltage contactor switching relay K4 normally opened contacts (i.e. node 8 and node 12).6kV medium voltage contactors
The node 21 of body obtains negative electricity.
Close a floodgate：The node 4 for pressing switch knob LA1,6kV medium voltage contactor body obtains positive electricity, 6kV medium voltage contactor bodies
Close a floodgate.JD2 is bright for relay separating brake indicator lamp, and LD is bright for 6kV medium voltage contactor body combined floodgate indicator lamps.
Separating brake：The node 11 for pressing opening button LA2,6kV medium voltage contactor body connects positive electricity, 6kV medium voltage contactors
Body sub-gate circuit obtains electric, 6kV medium voltage contactor body separating brakes.JD2 is bright for relay separating brake indicator lamp, 6kV medium voltage contactor sheets
YD is bright for body separating brake indicator lamp.
(2) 6kV medium voltage contactor breaking-closing operating processes are carried out using testing stand connecting dividing lock characteristic instrument of the invention
For：
Access divide-shut brake characteristic instrument after, four kinds of action logics of the 6kV medium voltage contactors of different conditions ibid, simply division
The pulse signal of " conjunction " and " dividing " of lock characteristic instrument instead of switch knob LA1 and opening button LA2 sends signal, realizes division
Lock, and the time of divide-shut brake is recorded in divide-shut brake characteristic instrument.
Implementation of the invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned reality
Example is applied, in the ken that those of ordinary skill in the art possess, can also be on the premise of present inventive concept not be departed from
Various changes can be made.The content not being described in detail in description of the invention can use prior art.
Claims (4)
1. a kind of 6kV medium voltage contactors multi-functional mechanical features Testbed, it is characterised in that：Divide-shut brake is provided with testing stand
Characteristic instrument interface and 110V electric power incoming line interfaces；The combined floodgate interface of divide-shut brake characteristic instrument interface respectively with the section of switch knob LA1
Press contacts in point 4, the electrically and mechanically node 1 of type switching relay K4, the node 5 of closing relay K1, V7 and VSC types 6kV
The node 6 and node 4 of device switching relay K3 are connected；The separating brake interface of divide-shut brake characteristic instrument interface respectively with opening button LA2
Node 4, the section of the electrically and mechanically node 2 of type 6kV medium voltage contactors switching relay K4 and 6kV medium voltage contactor bodies
Point 11 is connected；The positive pole of 110V electric power incoming line interfaces by power switch QF respectively with the node 32, separating brake of separating brake contactor K2
The node 3 of button LA2, the node 12 of closing relay K1, the node 23 of 6kV medium voltage contactor body combined floodgate auxiliary nodes BB2,
Pressed in node 16, one end of power supply indicator HD, V7 the and VSC types 6kV of 6kV medium voltage contactor body separating brake auxiliary nodes BB1
The 11 of contactor switching button LA3, the 23 and V7 and VSC types of electrically and mechanically type 6kV medium voltage contactors switching button LA4
The node 8 of 6kV medium voltage contactor switching relays K3 is connected；The negative pole of 110V electric power incoming line interfaces is distinguished by power switch QF
Coil 13, one end of relay combined floodgate indicator lamp JD1, one end of relay separating brake indicator lamp JD2 with closing relay K1, point
The loop A 2 of lock contactor K2, one end, the 6kV medium voltage contactor body separating brakes of 6kV medium voltage contactor body combined floodgate indicator lamps LD
One end of indicator lamp YD, the other end of power supply indicator HD, the coil of V7 and VSC type 6kV medium voltage contactor switching relays K3
13 and node 5, the node of the electrically and mechanically coil 13 and node 12 of type switching relay K4 and 6kV medium voltage contactor bodies
15 connections；
The node 31 of separating brake contactor K2 is connected with the node 9 of the node 3 of switch knob LA1 and closing relay K1；Electrically and
The node 9 of mechanical type switching relay K4 is connected with the coil 14 of closing relay K1；The node 8 and relay of closing relay K1
The other end connection of device combined floodgate indicator lamp JD1；The node 4 of closing relay K1 and the other end of relay separating brake indicator lamp JD2
Connection；Electrically and mechanically the node 10 of type switching relay K4 is connected with the loop A 1 of separating brake contactor K2；Medium voltage contactor sheet
The node 13 of body combined floodgate auxiliary node BB2 is connected with the other end of 6kV medium voltage contactor body combined floodgate indicator lamps LD；Middle press contacts
The node 6 of device body separating brake auxiliary node BB1 is connected with the other end of 6kV medium voltage contactor body separating brake indicator lamps YD；V7 and
The 12 of VSC type switching buttons LA3 are connected with the coil 14 of V7 and VSC type switching relays K3；Electrically and mechanically type switching button
The 24 of LA4 are connected with the coil 14 of electrically and mechanically type switching relay K4；The node 12 of V7 and VSC type switching relays K3 with
The node 5 of 6kV medium voltage contactor bodies is connected；The node 10 of V7 and VSC type switching relays K3 and 6kV medium voltage contactor bodies
Node 4 connect；The node 9 of V7 and VSC type switching relays K3 is connected with the node 14 of 6kV medium voltage contactor bodies；Separating brake
The node 22 of contactor K2 is connected with the node 2 of V7 and VSC type switching relays K3；The node 21 of separating brake contactor K2 and V7 and
The node 1 of VSC type switching relays K3 is connected；The electrically and mechanically node 8 of type switching relay K4 and 6kV medium voltage contactor sheets
The node 21 of body is connected.
2. 6kV medium voltage contactors multi-functional mechanical features Testbed according to claim 1, it is characterised in that：Described
Power switch QF is realized using air switch.
3. a kind of 6kV medium voltage contactors multi-functional mechanical characteristic test system, it is characterised in that：It is included such as claim 1 institute
The 6kV medium voltage contactor multi-functional mechanical features Testbeds and divide-shut brake characteristic instrument stated；The output end and 6kV of divide-shut brake characteristic instrument
Divide-shut brake characteristic instrument interface connection in medium voltage contactor multi-functional mechanical features Testbed.
4. 6kV medium voltage contactors multi-functional mechanical characteristic test system according to claim 3, it is characterised in that：It is described
Divide-shut brake characteristic instrument send pulse signal, simulation switch knob LA1 to 6kV medium voltage contactor multi-functional mechanicals features Testbed
The signal sent with opening button LA2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233196.4A CN106768954B (en) | 2016-12-28 | 2016-12-28 | Multifunctional mechanical characteristic test bed for 6kV medium-voltage contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233196.4A CN106768954B (en) | 2016-12-28 | 2016-12-28 | Multifunctional mechanical characteristic test bed for 6kV medium-voltage contactor |
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| Publication Number | Publication Date |
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| CN106768954A true CN106768954A (en) | 2017-05-31 |
| CN106768954B CN106768954B (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611233196.4A Active CN106768954B (en) | 2016-12-28 | 2016-12-28 | Multifunctional mechanical characteristic test bed for 6kV medium-voltage contactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115389920A (en) * | 2022-08-18 | 2022-11-25 | 中核核电运行管理有限公司 | Self-holding verification device for medium-voltage contactor |
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| CN206420643U (en) * | 2016-12-28 | 2017-08-18 | 中核核电运行管理有限公司 | 6kV medium voltage contactor multi-functional mechanical features Testbeds |
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| CH663699A5 (en) * | 1984-07-10 | 1987-12-31 | Sprecher & Schuh Ag | Starting device having a star/delta circuit for a three-phase induction motor |
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| CN115389920A (en) * | 2022-08-18 | 2022-11-25 | 中核核电运行管理有限公司 | Self-holding verification device for medium-voltage contactor |
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| Publication number | Publication date |
|---|---|
| CN106768954B (en) | 2023-05-19 |
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