CN209216329U - A kind of current-voltage transformer secondary circuit failure simulator - Google Patents
A kind of current-voltage transformer secondary circuit failure simulator Download PDFInfo
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- CN209216329U CN209216329U CN201821322947.4U CN201821322947U CN209216329U CN 209216329 U CN209216329 U CN 209216329U CN 201821322947 U CN201821322947 U CN 201821322947U CN 209216329 U CN209216329 U CN 209216329U
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Abstract
The utility model discloses a kind of current-voltage transformer secondary circuit failure simulators, including fault simulation input port, fault simulation output port and secondary circuit failure, and case is arranged；The secondary circuit failure setting case includes comprehensively control unit, and the comprehensively control unit includes open-circuit fault analog module, short-circuit fault simulation module and misphase fault simulation module；The fault simulation input port is electrically connected with the input terminal of open-circuit fault analog module, and the output end of open-circuit fault analog module is electrically connected with the input terminal of short-circuit fault simulation module；The output end of short-circuit fault simulation module is electrically connected with the input terminal of misphase fault simulation module, and the output end of misphase fault simulation module is connect with fault simulation output port.
Description
Technical field
The utility model relates to Current Voltage device fault simulation fields, more particularly, to a kind of current-voltage transformer
Secondary circuit failure simulator.
Background technique
In terms of the service condition of current power industry, the most failure of current-voltage transformer is secondary loop short circuit, breaks
Road will lead to system outage if processing of adopting an effective measure not in time, cause biggish damage to equipment, therefore carry out
Secondary circuit failure inspection is very crucial.In addition, current-voltage transformer secondary circuit simulated failure generallys use really
Relay protection device carry out the mode of digital physical mixed emulation in conjunction with a Computer Simulation instrument data and carry out, pass through
It repeatedly calculates, the electric current in Computer Simulation instrument of multiple modification, voltage data, is just able to achieve a variety of Current Voltage mutual inductances
Device secondary circuit failure, has the following problems: 1) electric current in a current used Computer Simulation instrument, voltage data
Complexity is calculated, structure is complicated, is easy omission, miscounts, to can not achieve various secondary circuit failure situations；2) a variety of two are carried out
The test of minor loop fault simulation needs repeatedly to calculate, the electric current in Computer Simulation instrument of multiple modification, voltage data,
It is low efficiency, slow several times；3) electric current in a used Computer Simulation instrument, voltage data cannot intuitively reflect electricity at present
Secondary Circuit of Potential Transformer failure mode is flowed, can not allow the practical hands-on of student, field failure phenomenon can not be experienced, reached
Less than ideal result of training.
Summary of the invention
The purpose of this utility model is to solve said one or multiple defects, proposes a kind of current-voltage transformer secondary returning
Road fault simulator.
To realize the above goal of the invention, the technical solution adopted is that:
A kind of current-voltage transformer secondary circuit failure simulator, including fault simulation input port, fault simulation
Case is arranged in output port and secondary circuit failure；
The secondary circuit failure setting case includes comprehensively control unit, and the comprehensively control unit includes open-circuit fault mould
Quasi- module, short-circuit fault simulation module and misphase fault simulation module；The fault simulation input port and open-circuit fault are simulated
The input terminal of module is electrically connected, and the output end of open-circuit fault analog module is electrically connected with the input terminal of short-circuit fault simulation module；
The output end of short-circuit fault simulation module is electrically connected with the input terminal of misphase fault simulation module, misphase fault simulation module it is defeated
Outlet is connect with fault simulation output port.
Preferably, the open-circuit fault analog module, short-circuit fault simulation module and misphase fault simulation module by
A, tetra- Xiang Huilu of B, C, N and several switches composition.
Preferably, each phase circuit is equipped with a change-over switch in the open-circuit fault analog module.
Preferably, four phase circuits are connected a change-over switch between any two in the short-circuit fault simulation module.
Preferably, in the misphase fault simulation module in A, B, C three-phase circuit, there are two each phase circuit is all connected with
Double-pole lock dress changes switch；A, B, C three-phase circuit passes through two double-pole lock change-over switch connections between any two.
Compared with prior art, the utility model has the beneficial effects that
1) calculating current, voltage data are not needed, directly sets about realizing various secondary circuit failure situations from circuit；
2) only data model need to be had no need to change by the i.e. changeable fault type of one or two switch；
3) secondary circuit graph can intuitively reflect current-voltage transformer secondary circuit failure mode, use in training and examination etc.
In it is concise, make the simple and quick understanding secondary circuit failure mode of start-up.
Detailed description of the invention
Fig. 1 the utility model current loop setting figure；
The position Fig. 2 the utility model voltage circuit setting figure.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
A kind of current-voltage transformer secondary circuit failure simulator, including fault simulation input port, fault simulation
Case is arranged in output port and secondary circuit failure；
The secondary circuit failure setting case includes comprehensively control unit, and the comprehensively control unit includes open-circuit fault mould
Quasi- module, short-circuit fault simulation module and misphase fault simulation module；The fault simulation input port and open-circuit fault are simulated
The input terminal of module is electrically connected, and the output end of open-circuit fault analog module is electrically connected with the input terminal of short-circuit fault simulation module；
The output end of short-circuit fault simulation module is electrically connected with the input terminal of misphase fault simulation module, misphase fault simulation module it is defeated
Outlet is connect with fault simulation output port.
In the present embodiment, the open-circuit fault analog module, short-circuit fault simulation module and misphase fault simulation module are equal
It is made of tetra- Xiang Huilu of A, B, C, N and several switches.
In the present embodiment, each phase circuit is equipped with a change-over switch in the open-circuit fault analog module.
In the present embodiment, four phase circuits are connected a change-over switch between any two in the short-circuit fault simulation module.
In the present embodiment, in the misphase fault simulation module in A, B, C three-phase circuit, each phase circuit is respectively connected with two
A double-pole lock dress changes switch；A, B, C three-phase circuit passes through two double-pole lock change-over switch connections between any two.
Referring to FIG. 1, being switched when carrying out current loop open-circuit test in A1, B1, C1, N1, A2, B2, C2, A3, B3, C3
Be off-state, and AB, BC, CA switch in state 1. when, if conducting B1, C1, N1 switch, open a way shape for A phase current
State；If A1, C1, N1 switch is connected, for B phase current open-circuit condition；If A1, B1, N1 switch is connected, for C phase current open circuit
State；If A1, B1, C1 switch is connected, for N phase current open-circuit condition.
When carrying out short circuit of current loop test, be on state in A1, B1, C1, N1 switch, and A2, B2, C2, A3,
B3, C3 switch are off-state, when AB, BC, CA switch are in state 1., if conducting A2 switch, is grounded short for A phase current
Line state；If B2 switch is connected, for B phase current ground short circuit state；If C2 switch is connected, for C phase current ground short circuit
State；If A3 switch is connected, for AB phase current short-circuit condition；If B3 switch is connected, for BC phase current short-circuit condition；If leading
Logical C3 switch, then be AC phase current short-circuit condition；If A3, B3 switch or A3, C3 switch or B3, C3 switch is connected, for ABC tri-
Phase current short-circuit condition；If A2, A3 switch or conducting B2, A3 switch is connected, for AB phase current short circuit grounding state；If conducting
B2, B3 switch or conducting C2, B3 switch, then be BC phase current short circuit grounding state；If A2, C3 switch or conducting C2, C3 is connected
Switch, then be AC phase current short circuit grounding state；If be connected A3, B3 switch or A3, C3 switch or B3, C3 switch and conducting A2 or
B2 or C2 switch, then be ABC three-phase current short circuit grounding state.
When carrying out the test of current loop misphase, be on state in A1, B1, C1, N1 switch, and A2, B2, C2, A3,
B3, C3 switch are off-state, when AB, BC, CA switch are in state 1., if 2. AB switch is in state, for AB electric current
Misphase state；If 2. BC switch is in state, for BC electric current misphase state；If 2. CA switch is in state, for CA electric current
Misphase state；If AB, BC switch are in state 2. or 2. BC, CA switch are in state, for ABC electric current misphase state, electric current
Practical output is BCA；If 2. in state, for ABC electric current misphase state, practical electric current output is CAB to AB, CA switch.
Referring to FIG. 2, being off-state in A, B, C, N switch, and AB, BC, CA when carrying out voltage circuit open-circuit test
When switch is in state 1., if conducting B, C, N switch, for A phase voltage open-circuit condition；If A, C, N switch is connected, for B phase
Voltage open-circuit condition；If A, B, N switch is connected, for C phase voltage open-circuit condition；If A, B, C switch is connected, for N phase voltage
Open-circuit condition；
When carrying out the test of voltage circuit misphase, it is on state in A, B, C, N switch, and AB, BC, CA switch are in
State 1. when, if AB switch in state 2., for AB voltage misphase state；If 2. BC switch is in state, for BC voltage
Misphase state；If 2. CA switch is in state, for CA voltage misphase state；If AB, BC switch are in state 2. or BC, CA are opened
It closes in state 2., is then ABC voltage misphase state, practical voltage output is BCA；If 2. AB, CA switch are in state, for
ABC voltage misphase state, practical voltage output is CAB.
Obviously, the above embodiments of the present invention is only to clearly illustrate example of the present invention, and not to be
It is the restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description
It can also make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in right of the present invention
It is required that protection scope within.
Claims (5)
1. a kind of current-voltage transformer secondary circuit failure simulator, which is characterized in that including fault simulation input port,
Case is arranged in fault simulation output port and secondary circuit failure；
The secondary circuit failure setting case includes comprehensively control unit, and the comprehensively control unit includes open-circuit fault simulation mould
Block, short-circuit fault simulation module and misphase fault simulation module；The fault simulation input port and open-circuit fault analog module
Input terminal electrical connection, the output end of open-circuit fault analog module is electrically connected with the input terminal of short-circuit fault simulation module；Short circuit
The output end of fault simulation module is electrically connected with the input terminal of misphase fault simulation module, the output end of misphase fault simulation module
It is connect with fault simulation output port.
2. a kind of current-voltage transformer secondary circuit failure simulator according to claim 1, which is characterized in that institute
If state open-circuit fault analog module, short-circuit fault simulation module and misphase fault simulation module by tetra- Xiang Huilu of A, B, C, N and
Dry switch composition.
3. a kind of current-voltage transformer secondary circuit failure simulator according to claim 2, which is characterized in that institute
It states each phase circuit in open-circuit fault analog module and is equipped with a change-over switch.
4. a kind of current-voltage transformer secondary circuit failure simulator according to claim 2, which is characterized in that institute
Four phase circuits in short-circuit fault simulation module are stated to connect between any two a change-over switch.
5. a kind of current-voltage transformer secondary circuit failure simulator according to claim 2, which is characterized in that institute
It states in misphase fault simulation module in A, B, C three-phase circuit, each phase circuit, which is all connected with to fill there are two double-pole lock, changes switch；It is described
A, B, C three-phase circuit pass through two double-pole lock change-over switch connections between any two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821322947.4U CN209216329U (en) | 2018-08-16 | 2018-08-16 | A kind of current-voltage transformer secondary circuit failure simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821322947.4U CN209216329U (en) | 2018-08-16 | 2018-08-16 | A kind of current-voltage transformer secondary circuit failure simulator |
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| CN209216329U true CN209216329U (en) | 2019-08-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898914A (en) * | 2018-08-16 | 2018-11-27 | 广东电网有限责任公司 | A kind of current-voltage transformer secondary circuit failure simulator |
| CN114252733A (en) * | 2021-12-17 | 2022-03-29 | 深圳供电局有限公司 | 10kV line phase-error closing judgment method, system, equipment and medium |
-
2018
- 2018-08-16 CN CN201821322947.4U patent/CN209216329U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898914A (en) * | 2018-08-16 | 2018-11-27 | 广东电网有限责任公司 | A kind of current-voltage transformer secondary circuit failure simulator |
| CN114252733A (en) * | 2021-12-17 | 2022-03-29 | 深圳供电局有限公司 | 10kV line phase-error closing judgment method, system, equipment and medium |
| CN114252733B (en) * | 2021-12-17 | 2023-12-22 | 深圳供电局有限公司 | 10kV line phase-dislocation switching-on and switching-off judging method, system, equipment and medium |
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