CN212723122U - 220 kilovolt of transformer substation leads to pressure test detection circuitry - Google Patents
220 kilovolt of transformer substation leads to pressure test detection circuitry Download PDFInfo
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- CN212723122U CN212723122U CN202020600144.1U CN202020600144U CN212723122U CN 212723122 U CN212723122 U CN 212723122U CN 202020600144 U CN202020600144 U CN 202020600144U CN 212723122 U CN212723122 U CN 212723122U
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Abstract
The utility model discloses a 220 kilovolt of transformer substation passes through voltage test detection circuitry, a serial communication port, including detect with voltage source and first detection circuitry, first detection circuitry includes first 220KV bus port, first voltage mutual inductance circuit, second voltage mutual inductance circuit, first current mutual inductance circuit and second current mutual inductance circuit; the first voltage mutual inductance circuit is connected with the first 220KV bus port; the utility model discloses a 220 kilovolt of transformer substation leads to pressure test detection circuitry can carry out generating line and circuit at a plurality of intervals and pressurize together, accomplishes and corresponds with the primary quantity of voltage transformer under the voltage source state and secondary quantity and do not reach the biography becomes the ratio inspection mutually, mutual-inductor secondary circuit phase sequence inspection and the correct voltage that distinguishes of opening triangle-shaped wiring, accomplishes the phasing to accomplish 220 kilovolt and lead to the pressure test and detect, provide reliable reference for follow-up phasor detection.
Description
Technical Field
The utility model relates to an electric power energy technical field especially relates to a 220 kilovolts of transformer substation leads to voltage test detection circuitry.
Background
In recent years, with the development of Chinese economy, the demand of society for electric energy is increasing, and the electric energy becomes one of indispensable energy sources for the life and social development of people. Along with implementation of strategic planning of national 'west-east power transmission' and 'energy internet', more and more transformer substations are under synchronous construction or upgrading. In a transformer substation, a Current Transformer (CT) and a voltage transformer (PT) are the most critical bridges for connecting primary equipment and secondary equipment, and are the basis for monitoring, analyzing and controlling the secondary equipment. The basic wiring of a current loop system and a voltage loop system of a transformer substation is complex, and particularly, a high-voltage-class transformer substation has more connecting devices and the loops are easy to have open-circuit and short-circuit faults. In addition, with the development of scientific technology, more and more transformer substations adopting electronic or optical transformers are adopted, and the electrical quantity from the transformers is directly connected to a relay protection device through optical fibers, so that conventional secondary pressurization, secondary through-flow tests and the like cannot be performed.
In the conventional test and substation construction handover procedures, the substation is generally directly subjected to a start test after various conventional tests on the substation are completed and after secondary protection and circuit inspection are completed, so that the problems of secondary circuit and polarity connection errors and the like frequently occur in the substation start test.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 220 kilovolts of transformer substation leads to pressure test detection circuitry.
The utility model provides a 220 kilovolt of transformer substation passes through voltage test detection circuitry, including detect with voltage source (M1) and first detection circuitry, first detection circuitry includes first 220KV generating line port (11), first voltage mutual inductance circuit (12), second voltage mutual inductance circuit (15), first current mutual inductance circuit (13) and second current mutual inductance circuit (14); the first voltage mutual inductance circuit (12) is connected with the first 220KV bus port (11); one end of the first current mutual inductance circuit (13) is connected with the first 220KV bus port (11), and the other end of the first current mutual inductance circuit is connected with the second current mutual inductance circuit (14); one end of the second voltage mutual inductance circuit (15) is connected with the second current mutual inductance circuit (14), and the other end of the second voltage mutual inductance circuit is grounded; the detection voltage source (M1) is connected to the second voltage transformer circuit (15).
The first current transformer circuit (13) comprises a first resistor (R1) and a first current transformer (CT 1); one end of the first resistor (R1) is connected with the first 220KV bus port (11) and the other end is connected with the first current transformer (CT 1). The second current transformer circuit (14) comprises a second resistor (R2) and a second current transformer (CT 2); the second current transformer (CT2) has one end connected with the first current transformer (CT1) and the other end connected with one end of the second resistor (R2); the other end of the second resistor (R2) is connected with the second voltage mutual inductance circuit (15). The 220KV voltage-on test detection circuit of the transformer substation provided by the utility model also comprises a first switch circuit; the first switch circuit includes a first switch (K1), a second switch (K2), a third switch (K9), a fourth switch (K10), a fifth switch (K11), a sixth switch (K12), a seventh switch (K7), and an eighth switch (K8); one end of each of the first switch (K1) and the second switch (K2) is connected with the first 220KV bus port (11), and the other end of each of the first switch and the second switch is grounded; one end of the third switch (K9) is connected with the first resistor (R1) and the other end is grounded; one end of the fourth switch (K10) is connected with the first current transformer (CT1) and the other end is grounded; one end of each of the fifth switch (K11) and the sixth switch (K12) is connected with the second voltage mutual inductance circuit (15), and the other end of each of the fifth switch and the sixth switch is grounded; one end of the seventh switch (K7) is connected with the first 220KV bus port (11), and the other end of the seventh switch (K7) is connected with one end of the eighth switch (K8); the other end of the eighth switch (K8) is grounded. The second voltage mutual inductance circuit (15) is a 220kV line capacitance type voltage mutual inductance circuit, and the 220kV line capacitance type voltage mutual inductance circuit comprises a first capacitor (C1), a second capacitor (C2) and a first voltage transformer; the first capacitor (C1) and the second capacitor (C2) are connected in series; the first voltage transformer is connected in parallel with the second capacitor (C2). The utility model provides a 220 kilovolts of transformer substation pass through voltage test detection circuitry, still include second detection circuitry, second detection circuitry includes second 220KV bus port (21), third voltage mutual inductance circuit (22), fourth voltage mutual inductance circuit (25) and third current mutual inductance circuit (23); the third voltage mutual inductance circuit (22) is connected with the second 220KV bus port (21); one end of the third current mutual inductance circuit (23) is connected with the first 220KV bus port (11), and the other end of the third current mutual inductance circuit is connected with the fourth voltage mutual inductance circuit (25); the detection voltage source (M1) is connected to the fourth voltage transformer circuit (25). The utility model provides a 220 kilovolts of transformer substation pass through voltage test detection circuitry, still include the second switch circuit, the second switch circuit includes ninth switch (K5), tenth switch (K6), eleventh switch (K3), twelfth switch (K4), thirteenth switch (K13) and fourteenth switch (K14); one end of the ninth switch (K5) is connected with the second 220KV bus bar port (21) and the other end is connected with one end of the tenth switch (K6); the other end of the tenth switch (K6) is grounded; one end of each of the eleventh switch (K3) and the twelfth switch (K4) is connected with the third voltage mutual inductance circuit (22), and the other end of each of the eleventh switch and the twelfth switch is grounded; one end of each of the thirteenth switch (K13) and the fourteenth switch (K14) is connected with the fourth voltage mutual inductance circuit (25), and the other end of each of the thirteenth switch and the fourteenth switch is grounded. The third current transformer circuit (23) comprises a third resistor (R3) and a third current transformer (CT 3); the third current transformer (CT3) has one end connected between the ninth switch (K5) and the tenth switch (K6) and the other end connected with one end of the third resistor (R3); the other end of the third resistor (R3) is connected with the fourth voltage mutual inductance circuit (25). The fourth voltage mutual inductance circuit (25) comprises a third capacitor (C3), a fourth capacitor (C4) and a second voltage transformer; the third capacitor (C3) and the fourth capacitor (C4) are connected in series; the second voltage transformer is connected in parallel with the fourth capacitor (C4).
The utility model provides a 220 kilovolt of transformer substation leads to voltage test detection circuitry can carry out generating line and circuit at a plurality of intervals and pressurize together, accomplishes and corresponds with the primary quantity of voltage transformer under the voltage source state and secondary quantity and do not reach the biography transformation ratio inspection, mutual-inductor secondary circuit phase sequence inspection and the correct voltage that distinguishes of opening triangle-shaped wiring mutually, accomplishes the phasing. The 220KV voltage-passing test detection circuit of the transformer substation provided by the utility model can realize that a group of mutual inductors are arbitrarily selected as reference, the secondary voltage is recovered, and the polarity of the secondary voltage is compared with the primary output voltage of a test instrument, and the secondary voltage is the same polarity; the output quantity of the selected group of voltage transformers is taken as reference, phase checking is carried out between the secondary phases of the transformers, the consistency of the polarity of the output quantity of the voltage transformers is confirmed, voltage polarity checking between intervals can also be carried out on a fault recorder, and therefore 220kV voltage-passing test detection is completed, and reliable reference is provided for subsequent phasor detection.
Drawings
Fig. 1 is the utility model discloses a 220 kilovolts of transformer substation lead to voltage test detection circuitry schematic diagram.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a 220KV pass-voltage test detection circuit for a substation, which includes a voltage source M1 for detection and a first detection circuit, where the first detection circuit includes a first 220KV bus port 11, a first voltage mutual inductance circuit 12, a second voltage mutual inductance circuit 15, a first current mutual inductance circuit 13, and a second current mutual inductance circuit 14; the first voltage mutual inductance circuit 12 is connected with the first 220KV bus port 11; one end of the first current mutual inductance circuit 13 is connected with the first 220KV bus port 11, and the other end is connected with the second current mutual inductance circuit 14; one end of the second voltage mutual inductance circuit 15 is connected with the second current mutual inductance circuit 14, and the other end is grounded; the detection voltage source M1 is connected to the second voltage transformer circuit 15.
The first current mutual inductance circuit 13 comprises a first resistor R1 and a first current transformer CT 1; one end of the first resistor R1 is connected to the first 220KV bus port 11, and the other end is connected to the first current transformer CT 1.
The second current mutual inductance circuit 14 comprises a second resistor R2 and a second current transformer CT 2; one end of the second current transformer CT2 is connected with the first current transformer CT1, and the other end of the second current transformer CT2 is connected with one end of the second resistor R2; the other end of the second resistor R2 is connected to the second voltage transformer circuit 15.
Also includes a first switch circuit; the first switch circuit comprises a first switch K1 and a second switch K2; one end of each of the first switch K1 and the second switch K2 is connected to the first 220KV bus bar port 11, and the other end is grounded.
The first switch circuit further comprises a third switch K9 and a fourth switch K10; one end of the third switch K9 is connected with the first resistor R1, and the other end is grounded; one end of the fourth switch K10 is connected with the first current transformer CT1 and the other end is grounded.
The first switch circuit further comprises a fifth switch K11 and a sixth switch K12; one end of each of the fifth switch K11 and the sixth switch K12 is connected to the second voltage transformer circuit 15, and the other end is grounded.
The first switch circuit further comprises a seventh switch K7 and an eighth switch K8, wherein one end of the seventh switch K7 is connected with the first 220KV bus bar port 11, and the other end is connected with one end of the eighth switch K8; the other end of the eighth switch K8 is grounded.
The second voltage mutual inductance circuit 15 is a 220kv line capacitive voltage mutual inductance circuit, and the 220kv line capacitive voltage mutual inductance circuit includes a first capacitor C1, a second capacitor C2 and a first voltage transformer; the first capacitor C1 and the second capacitor C2 are connected in series; the first voltage transformer is connected in parallel with the second capacitor C2.
The 220KV voltage-passing test detection circuit of the transformer substation provided by the embodiment further comprises a second detection circuit, wherein the second detection circuit comprises a second 220KV bus port 21, a third voltage mutual inductance circuit 22, a fourth voltage mutual inductance circuit (25) and a third current mutual inductance circuit 23; the third voltage mutual inductance circuit 22 is connected with the second 220KV bus port 21; one end of the third current mutual inductance circuit 23 is connected with the first 220KV bus port 11, and the other end is connected with the fourth voltage mutual inductance circuit (25); the detection voltage source M1 is connected with the fourth voltage mutual inductance circuit (25).
The 220kv voltage-on test detection circuit of the substation provided by the embodiment further comprises a second switch circuit, wherein the second switch circuit comprises a ninth switch K5 and a tenth switch K6; one end of the ninth switch K5 is connected to the second 220KV bus bar port 21, and the other end is connected to one end of the tenth switch K6; the other end of the tenth switch K6 is grounded.
The second switch circuit further includes an eleventh switch K3 and a twelfth switch K4; one end of each of the eleventh switch K3 and the twelfth switch K4 is connected to the third voltage transformer circuit 22, and the other end is grounded;
the second switch circuit further comprises a thirteenth switch K13 and a fourteenth switch K14; one end of each of the thirteenth switch K13 and the fourteenth switch K14 is connected with the fourth voltage mutual inductance circuit (25), and the other end is grounded.
The third current mutual inductance circuit 23 comprises a third resistor R3 and a third current transformer CT 3; the third current transformer CT3 has one end connected between the ninth switch K5 and the tenth switch K6 and the other end connected to one end of the third resistor R3; the other end of the third resistor R3 is connected with the fourth voltage mutual inductance circuit (25).
The fourth voltage mutual inductance circuit (25) comprises a third capacitor C3, a fourth capacitor C4 and a second voltage transformer; the third capacitor C3 and the fourth capacitor C4 are connected in series; the second voltage transformer is connected in parallel with the fourth capacitor C4.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The 220KV voltage-passing test detection circuit of the transformer substation is characterized by comprising a voltage source (M1) for detection and a first detection circuit, wherein the first detection circuit comprises a first 220KV bus port (11), a first voltage mutual inductance circuit (12), a second voltage mutual inductance circuit (15), a first current mutual inductance circuit (13) and a second current mutual inductance circuit (14); the first voltage mutual inductance circuit (12) is connected with the first 220KV bus port (11); one end of the first current mutual inductance circuit (13) is connected with the first 220KV bus port (11), and the other end of the first current mutual inductance circuit is connected with the second current mutual inductance circuit (14); one end of the second voltage mutual inductance circuit (15) is connected with the second current mutual inductance circuit (14), and the other end of the second voltage mutual inductance circuit is grounded; the detection voltage source (M1) is connected to the second voltage transformer circuit (15).
2. The substation 220kv pass-voltage test detection circuit of claim 1, wherein the first current transformer circuit (13) comprises a first resistor (R1) and a first current transformer (CT 1); one end of the first resistor (R1) is connected with the first 220KV bus port (11) and the other end is connected with the first current transformer (CT 1).
3. The substation 220kv pass-voltage test detection circuit of claim 2, wherein the second current transformer circuit (14) comprises a second resistor (R2) and a second current transformer (CT 2); the second current transformer (CT2) has one end connected with the first current transformer (CT1) and the other end connected with one end of the second resistor (R2); the other end of the second resistor (R2) is connected with the second voltage mutual inductance circuit (15).
4. The substation 220kV voltage-on test detection circuit of claim 3, further comprising a first switching circuit; the first switch circuit includes a first switch (K1), a second switch (K2), a third switch (K9), a fourth switch (K10), a fifth switch (K11), a sixth switch (K12), a seventh switch (K7), and an eighth switch (K8); one end of each of the first switch (K1) and the second switch (K2) is connected with the first 220KV bus port (11), and the other end of each of the first switch and the second switch is grounded; one end of the third switch (K9) is connected with the first resistor (R1) and the other end is grounded; one end of the fourth switch (K10) is connected with the first current transformer (CT1) and the other end is grounded; one end of each of the fifth switch (K11) and the sixth switch (K12) is connected with the second voltage mutual inductance circuit (15), and the other end of each of the fifth switch and the sixth switch is grounded; one end of the seventh switch (K7) is connected with the first 220KV bus port (11), and the other end of the seventh switch (K7) is connected with one end of the eighth switch (K8); the other end of the eighth switch (K8) is grounded.
5. The substation 220kV pass-voltage test detection circuit according to claim 4, characterized in that the second voltage mutual inductance circuit (15) is a 220kV line capacitive voltage mutual inductance circuit, and the 220kV line capacitive voltage mutual inductance circuit comprises a first capacitor (C1), a second capacitor (C2) and a first voltage transformer; the first capacitor (C1) and the second capacitor (C2) are connected in series; the first voltage transformer is connected in parallel with the second capacitor (C2).
6. The substation 220kV pass-voltage test detection circuit of claim 5, characterized by further comprising a second detection circuit, wherein the second detection circuit comprises a second 220kV bus port (21), a third voltage mutual inductance circuit (22), a fourth voltage mutual inductance circuit (25) and a third current mutual inductance circuit (23); the third voltage mutual inductance circuit (22) is connected with the second 220KV bus port (21); one end of the third current mutual inductance circuit (23) is connected with the first 220KV bus port (11), and the other end of the third current mutual inductance circuit is connected with the fourth voltage mutual inductance circuit (25); the detection voltage source (M1) is connected to the fourth voltage transformer circuit (25).
7. The substation 220 kilovolt pass-voltage test detection circuit of claim 6, further comprising a second switch circuit comprising a ninth switch (K5), a tenth switch (K6), an eleventh switch (K3), a twelfth switch (K4), a thirteenth switch (K13) and a fourteenth switch (K14); one end of the ninth switch (K5) is connected with the second 220KV bus bar port (21) and the other end is connected with one end of the tenth switch (K6); the other end of the tenth switch (K6) is grounded; one end of each of the eleventh switch (K3) and the twelfth switch (K4) is connected with the third voltage mutual inductance circuit (22), and the other end of each of the eleventh switch and the twelfth switch is grounded; one end of each of the thirteenth switch (K13) and the fourteenth switch (K14) is connected with the fourth voltage mutual inductance circuit (25), and the other end of each of the thirteenth switch and the fourteenth switch is grounded.
8. The substation 220kv pass-voltage test detection circuit of claim 7, wherein the third current transformer circuit (23) comprises a third resistor (R3) and a third current transformer (CT 3); the third current transformer (CT3) has one end connected between the ninth switch (K5) and the tenth switch (K6) and the other end connected with one end of the third resistor (R3); the other end of the third resistor (R3) is connected with the fourth voltage mutual inductance circuit (25).
9. The substation 220kv pass-voltage test detection circuit of claim 8, wherein the fourth voltage transformer circuit (25) comprises a third capacitor (C3), a fourth capacitor (C4) and a second voltage transformer; the third capacitor (C3) and the fourth capacitor (C4) are connected in series; the second voltage transformer is connected in parallel with the fourth capacitor (C4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020600144.1U CN212723122U (en) | 2020-04-21 | 2020-04-21 | 220 kilovolt of transformer substation leads to pressure test detection circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020600144.1U CN212723122U (en) | 2020-04-21 | 2020-04-21 | 220 kilovolt of transformer substation leads to pressure test detection circuitry |
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| Publication Number | Publication Date |
|---|---|
| CN212723122U true CN212723122U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020600144.1U Expired - Fee Related CN212723122U (en) | 2020-04-21 | 2020-04-21 | 220 kilovolt of transformer substation leads to pressure test detection circuitry |
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| Country | Link |
|---|---|
| CN (1) | CN212723122U (en) |
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2020
- 2020-04-21 CN CN202020600144.1U patent/CN212723122U/en not_active Expired - Fee Related
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