CN207781030U - A kind of the high and low pressure side winding and core insulation fault simulator of transformer - Google Patents
A kind of the high and low pressure side winding and core insulation fault simulator of transformer Download PDFInfo
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- CN207781030U CN207781030U CN201721293249.1U CN201721293249U CN207781030U CN 207781030 U CN207781030 U CN 207781030U CN 201721293249 U CN201721293249 U CN 201721293249U CN 207781030 U CN207781030 U CN 207781030U
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- switch
- phase windings
- transformer
- low pressure
- pressure side
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Abstract
The utility model discloses a kind of high and low pressure side winding of transformer and core insulation fault simulators, a phase windings, b phase windings, c phase windings and neutral conductor n including iron core and the low-pressure side being wrapped on iron core and on high-tension side A phase windings, B phase windings, C phase windings and neutral conductor N, neutral conductor N is connected respectively to by switch 31S and switch 33S on transformer case and center line n, center line n is connected to by switch 32S on transformer case, and transformer case is connected to by switch 34S on iron core.The utility model realizes high and low pressure side winding and core insulation fault simulation by Operation switch 31S, switch 32S, switch 33S and switch 34S, it is simple in structure, at low cost, occupy little space, simulated effect it is more preferable, it avoids equipment from running in spite of illness, reduces grid equipment risk, promote result of training.
Description
Technical field
The utility model belongs to transformer winding and iron core fault simulation technical field, and in particular to a kind of height of transformer
Low-pressure side winding and core insulation fault simulator.
Background technology
Since indoor training venue space is limited, if simulator configures high-power transformer, of high cost, occupied space is big,
Complicated, simulated effect is poor.
Invention content
The utility model solve the technical issues of be：A kind of the high and low pressure side winding and core insulation failure of transformer are provided
Simulator, it is simple in structure, at low cost, occupy little space, simulated effect it is more preferable, to solve above-mentioned existing in the prior art ask
Topic.
The technical solution that the utility model is taken is：A kind of the high and low pressure side winding and core insulation fault simulation of transformer
Device, including iron core and a phase windings for the low-pressure side being wrapped on iron core, b phase windings, c phase windings and neutral conductor n and high pressure
A phase windings, B phase windings, C phase windings and the neutral conductor N of side, neutral conductor N are connected respectively to change by switch 31S and switch 33S
On depressor shell and center line n, center line n is connected to by switch 32S on transformer case, and transformer case passes through switch
34S is connected on iron core.
Preferably, above-mentioned switch is all made of low pressure and is spaced apart or push-button switch.
The beneficial effects of the utility model：Compared with prior art, the utility model is by controlling switch 31S, switch
32S, switch 33S and switch 34S can realize that transformer is in normal non-fault state simulation, high-voltage winding shorted to earth（Absolutely
Edge is bad）Fault simulation, low pressure winding shorted to earth（Defective insulation）Fault simulation, short circuit between high-low pressure winding（Insulation
It is bad）Fault simulation and multipoint earthing of iron core fault simulation, the simulator is simple in structure, it is at low cost, occupy little space,
Simulated effect is more preferable, can simulate different types of failure, and start-up can become to analyze with diagnosis according to the data of test
The failure of depressor, the accurate failure for analyzing and determining equipment, provides Strategies of Maintenance, equipment is avoided to run in spite of illness in time, reduces power grid
Equipment Risk promotes result of training.
Description of the drawings
Fig. 1 is the schematic diagram of circuit connection structure of the utility model.
Specific implementation mode
Below in conjunction with the accompanying drawings and the utility model is described further in specific embodiment.
Embodiment 1：As shown in Figure 1, the high and low pressure side winding and core insulation fault simulator of a kind of transformer, including
Iron core and a phase windings for the low-pressure side being wrapped on iron core, b phase windings, c phase windings and neutral conductor n and on high-tension side A phases around
Group, B phase windings, C phase windings and neutral conductor N, neutral conductor N by switch 31S and switch 33S be connected respectively to transformer case with
On center line n, center line n is connected to by switch 32S on transformer case, and transformer case is connected to iron by switch 34S
On core.
Preferably, above-mentioned switch is all made of low pressure and is spaced apart or push-button switch.
The high and low pressure side winding of above-mentioned transformer and the emulation mode of core insulation fault simulator, this method are：1）
Transformer core is in normal non-fault state simulation：Switch 33S between high-low pressure winding is disconnected, high-voltage winding and transformer
Switch 31S between shell is disconnected, and the switch 32S between low pressure winding and transformer case is disconnected, iron core and transformer case
Between switch 34S disconnect；2）High-voltage winding shorted to earth（Defective insulation）Fault simulation：Change in normal state simulation state
Depressor, switch 31S are closed；3）Low pressure winding shorted to earth（Defective insulation）Fault simulation：In normal state simulation state
Transformer, by switch 32S be closed；4）It is short-circuit between high-low pressure winding（Defective insulation）Fault simulation：In normal state simulation shape
Switch 33S is closed by the transformer of state；5）The fault simulation of multipoint earthing of iron core：Transformer in normal state simulation state, will
Switch 34S is closed.
High and low pressure side winding and core insulation fault setting explanation：
It is closed by operating 31S, may be configured as high-voltage winding shorted to earth（Defective insulation）Failure mode；
Explanation：When normal, 31S is to disconnect, and when high-voltage winding and transformer case insulation breakdown, is equivalent to handle
31S is closed, that is to say, that by the break-make of Operation switch, carrys out simulated high-pressure winding shorted to earth（Defective insulation）Failure side
Formula.
It is closed by operating 32S, may be configured as low pressure winding shorted to earth（Defective insulation）Failure mode；
Explanation：When normal, 32S is to disconnect, and when high-voltage winding and transformer case insulation breakdown, is equivalent to handle
32S is closed, that is to say, that by the break-make of Operation switch, carrys out simulated high-pressure winding shorted to earth（Defective insulation）Failure side
Formula.
It is closed by operating 33S, may be configured as short circuit between high-low pressure winding（Defective insulation）Failure mode；
Explanation：When normal, 33S is to disconnect, and when high-voltage winding and low pressure winding insulation breakdown, is equivalent to a 33S
It is closed.That is, by the break-make of Operation switch, come short-circuit between simulated high-pressure winding and low pressure winding（Defective insulation）Event
Barrier mode.
It is closed by operating 34S, may be configured as the failure mode of multipoint earthing of iron core；
Explanation：When normal, 34S is to disconnect, and when iron core and transformer case insulation breakdown, 34S is equivalent to close
It closes.That is, by the break-make of Operation switch, to simulate iron core shorted to earth（Defective insulation）Failure mode.
Example above description is only a specific implementation of the present invention, the scope of protection of the utility model not office
It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or
Alternative, these should be covered within the scope of the utility model.For this purpose, the scope of protection of the utility model should be with
Subject to the scope of the claims.
Claims (2)
1. the high and low pressure side winding and core insulation fault simulator of a kind of transformer, it is characterised in that：Including iron core and
Be wrapped in a phase windings, b phase windings, c phase windings of the low-pressure side on iron core and neutral conductor n and on high-tension side A phase windings, B phases around
Group, C phase windings and neutral conductor N, neutral conductor N are connected respectively to transformer case and center line n by switch 31S and switch 33S
On, center line n is connected to by switch 32S on transformer case, and transformer case is connected to by switch 34S on iron core.
2. the high and low pressure side winding and core insulation fault simulator of a kind of transformer according to claim 1, special
Sign is：Switch is all made of low pressure and is spaced apart or push-button switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721293249.1U CN207781030U (en) | 2017-10-09 | 2017-10-09 | A kind of the high and low pressure side winding and core insulation fault simulator of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721293249.1U CN207781030U (en) | 2017-10-09 | 2017-10-09 | A kind of the high and low pressure side winding and core insulation fault simulator of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781030U true CN207781030U (en) | 2018-08-28 |
Family
ID=63219511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721293249.1U Active CN207781030U (en) | 2017-10-09 | 2017-10-09 | A kind of the high and low pressure side winding and core insulation fault simulator of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781030U (en) |
-
2017
- 2017-10-09 CN CN201721293249.1U patent/CN207781030U/en active Active
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