CN202564788U - High voltage load switch cabinet with over current control - Google Patents
High voltage load switch cabinet with over current control Download PDFInfo
- Publication number
- CN202564788U CN202564788U CN2012202337247U CN201220233724U CN202564788U CN 202564788 U CN202564788 U CN 202564788U CN 2012202337247 U CN2012202337247 U CN 2012202337247U CN 201220233724 U CN201220233724 U CN 201220233724U CN 202564788 U CN202564788 U CN 202564788U
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- CN
- China
- Prior art keywords
- phase current
- load switch
- mutual inductor
- current mutual
- cabinet
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a high voltage load switch cabinet with over current control. The high voltage load switch cabinet with over current control comprises a load switch, a cabinet body, an A phase current transformer, a fuse, a measurement voltage transformer and a C phase current transformer. A trip coil is arranged in the load switch. The input ends of the A phase current transformer and the C phase current transformer are connected with a high voltage line, and the output ends are respectively connected with the load switch and the fuse. The output end of the fuse is connected with the measurement voltage transformer. A current controller is arranged in the cabinet body. A brown line of the current controller is connected with a K1 contact of the A phase current transformer. A blue line of the current controller is connected with a K1 contact of the C phase current transformer. A K2 contact of the A phase current transformer and a K2 contact of the C phase current transformer are connected and then are connected with a white line of the current controller and the ground. A red line and a black line of the current controller are connected with the trip coil of the load switch. The device has the advantages of accurate action, timeliness, reliability and convenient connection and occupies small space, thus the reliability of a current test is increased.
Description
Technical field
The utility model relates to a kind of improvement of high voltage load switch cabinet, specifically a kind of with the high voltage load switch cabinet of current control.
Background technology
At present, the high voltage load switch cabinet that in case becomes, uses comprises on-load switch, cabinet, current transformer, fuse, current relay, opening button and voltage transformer; The input termination 10KV high pressure inlet wire of current transformer, the output termination on-load switch of current transformer, the output termination fuse of current transformer; Opening button is connected with the shunt opening coil FQ of on-load switch; Pressing opening button can cut off the power supply by the operational load switch trip, and current relay is connected with current transformer, aspect current testing; Need be through the disjunction of controlling on-load switch normal battle of current relay; Its weak point is: current relay takes up room greatly, need in the high voltage load switch cabinet to arrange other electric elements, so current relay is installed in the cabinet outer side of door of high voltage load switch cabinet; And need take whole cabinet door, difficult in arrangement; When carrying out the instantaneous over-current test, unreliable phenomenon also can appear moving at the appointed time simultaneously.
Summary of the invention
It is a kind of simple in structure, easy for installation that the purpose of the utility model is to provide, and it is little to take up room, can strengthen current testing reliability band the high voltage load switch cabinet of current control.
In order to reach above purpose; The technical scheme that the utility model adopted is: this with the high voltage load switch cabinet of current control; Comprise on-load switch, cabinet, A phase current mutual inductor, fuse, metered voltage instrument transformer and C phase current mutual inductor; On-load switch, A phase current mutual inductor, fuse, metered voltage instrument transformer and C phase current mutual inductor all are fixed on the inwall of cabinet of high voltage load switch cabinet; Be provided with tripping coil in the on-load switch, through tripping coil operational load switch trip, the high pressure inlet wire of the input termination 10KV voltage of A phase current mutual inductor and C phase current mutual inductor; The output of A phase current mutual inductor and C phase current mutual inductor is connected with fuse with on-load switch through lead respectively; The output termination metered voltage instrument transformer of fuse is characterized in that: on the inwall of the cabinet of high voltage load switch cabinet, also be fixed with the controller that shoves, the brown line of the controller that shoves is connected with the K1 contact of A phase current mutual inductor; The blue line of controller of shoving is connected with the K1 contact of C phase current mutual inductor; The K2 contact of A phase current mutual inductor is connected the back and is connected with the white wire of the controller that shoves and ground connection with the K2 contact of C phase current mutual inductor; The red line of controller of shoving is connected with the tripping coil of on-load switch with black line.
The beneficial effect of the utility model is: operate time is accurately adjustable, and electric current is adjusted through the simulation of integrated circuit, and proper is in time reliable; Simultaneously, easy-to-connect, it is little to take up room, and test is convenient, has strengthened the reliability of current testing.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the utility model;
Fig. 2 is the circuit connection schematic diagram of the controller that shoves of the utility model;
Among the figure: 1, on-load switch; 2, tripping coil; 3, cabinet; 4, A phase current mutual inductor; 5, the controller that shoves; 6, fuse; 7, metered voltage instrument transformer; 8, C phase current mutual inductor.
Embodiment
Make the utility model with reference to accompanying drawing 1, Fig. 2.This with the high voltage load switch cabinet of current control; Comprise on-load switch 1, cabinet 3, A phase current mutual inductor 4, fuse 6, metered voltage instrument transformer 7 and C phase current mutual inductor 8; On-load switch 1, A phase current mutual inductor 4, fuse 6, metered voltage instrument transformer 7 and C phase current mutual inductor 8 all are fixed on the inwall of cabinet 3 of high voltage load switch cabinet; Be provided with tripping coil 2 in the on-load switch 1; Through 1 tripping operation of tripping coil 2 operational load switches; The high pressure inlet wire of the input termination 10KV voltage of A phase current mutual inductor 4 and C phase current mutual inductor 8, the output of A phase current mutual inductor 4 and C phase current mutual inductor 8 is connected with fuse 6 with on-load switch 1 through lead respectively, the output termination metered voltage instrument transformer 7 of fuse 6; It is characterized in that: on the inwall of the cabinet 3 of high voltage load switch cabinet, also be fixed with the controller 5 that shoves, the brown line of the controller 5 that shoves is connected with the K1 contact of A phase current mutual inductor 4; The blue line of controller 5 of shoving is connected with the K1 contact of C phase current mutual inductor 8; The K2 contact of A phase current mutual inductor 4 is connected the back and is connected with the white wire of the controller 5 that shoves and ground connection with the K2 contact of C phase current mutual inductor 8; The red line of controller 5 of shoving is connected with the tripping coil 2 of on-load switch 1 with black line; After load sharply increases or when short trouble occurring, electric current can sharply increase, and exceeds the set point on the controller 5 that shoves, tripping coil 2 work, operational load switch 1 carries out would trip, and is easy to use, quick.
The novel NY1 type that the described controller 5 of shoving adopts Nan Rui Science and Technology Ltd.s the to produce controller that shoves.
Claims (1)
- With the high voltage load switch cabinet of current control; Comprise on-load switch (1), cabinet (3), A phase current mutual inductor (4), fuse (6), metered voltage instrument transformer (7) and C phase current mutual inductor (8); On-load switch (1), A phase current mutual inductor (4), fuse (6), metered voltage instrument transformer (7) and C phase current mutual inductor (8) all are fixed on the inwall of cabinet (3) of high voltage load switch cabinet; Be provided with tripping coil (2) in the on-load switch (1); The high pressure inlet wire of the input termination 10KV voltage of A phase current mutual inductor (4) and C phase current mutual inductor (8); The output of A phase current mutual inductor (4) and C phase current mutual inductor (8) is connected with fuse (6) with on-load switch (1) through lead respectively; The output termination metered voltage instrument transformer (7) of fuse (6); It is characterized in that: on the inwall of the cabinet (3) of high voltage load switch cabinet, also be fixed with the controller that shoves (5), the brown line of the controller that shoves (5) is connected with the K1 contact of A phase current mutual inductor (4); The blue line of controller (5) of shoving is connected with the K1 contact of C phase current mutual inductor (8); The K2 contact of A phase current mutual inductor (4) is connected the back and is connected with the white wire of the controller that shoves (5) and ground connection with the K2 contact of C phase current mutual inductor (8); The red line of controller (5) of shoving is connected with the tripping coil (2) of on-load switch (1) with black line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202337247U CN202564788U (en) | 2012-05-23 | 2012-05-23 | High voltage load switch cabinet with over current control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202337247U CN202564788U (en) | 2012-05-23 | 2012-05-23 | High voltage load switch cabinet with over current control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564788U true CN202564788U (en) | 2012-11-28 |
Family
ID=47214404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202337247U Expired - Fee Related CN202564788U (en) | 2012-05-23 | 2012-05-23 | High voltage load switch cabinet with over current control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564788U (en) |
-
2012
- 2012-05-23 CN CN2012202337247U patent/CN202564788U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20210523 |