CN202586279U - Wiring circuit for microcomputer transformer protection device - Google Patents
Wiring circuit for microcomputer transformer protection device Download PDFInfo
- Publication number
- CN202586279U CN202586279U CN 201220143792 CN201220143792U CN202586279U CN 202586279 U CN202586279 U CN 202586279U CN 201220143792 CN201220143792 CN 201220143792 CN 201220143792 U CN201220143792 U CN 201220143792U CN 202586279 U CN202586279 U CN 202586279U
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- CN
- China
- Prior art keywords
- wiring
- transformer
- wiring circuit
- mutual inductor
- circuit
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a wiring structure for a microcomputer transformer protection device. The wiring circuit comprises a wire connecting bar that is connected externally with a power supply. A connecting wire is led out from the wire connecting bar, and is connected sequentially with a circuit breaker-QF, current mutual inductors (L1, L2), a voltage mutual inductor-J, a residual current mutual inductor-L3 and then is led out. The incoming wire terminal of the voltage mutual inductor-J is connected in parallel with a residual current mutual inductor-L4. According to the wiring circuit, the circuit structure is simple and reliable, the structures of conventional wiring circuits are simplified, the safety performance is improved, the fault ratio is substantially reduced, and thus the wiring circuit is suitable for the protection for a line transformer group at a voltage level at or below 35 kV.
Description
Technical field
The utility model relates to DPM series computer integrated protection field, specifically is a kind of microcomputer protection equipment for transformer wiring circuit.
Background technology
DPM series computer integrated protection is mainly used in following the distribution occasions of 35V such as transformer station, intelligent building, industrial enterprise, have magnanimity information collection, delicate structure, simple to operate, volume is little, flexible, high, the reliable and stable characteristics of certainty of measurement easy for installation.
The microcomputer protection equipment for transformer is a kind of as DPM series computer integrated protection, its wiring more complicated, and also failure rate is high, can't satisfy the demand.
The utility model content
The purpose of the utility model provides a kind of microcomputer protection equipment for transformer wiring circuit, simplifies the structure of existing wiring circuit, improves fail safe.
The technical scheme of the utility model is following:
A kind of microcomputer protection equipment for transformer wiring circuit; Include the line bank of external power supply; It is characterized in that: draw wiring from described line bank; Draw after being connected in series circuit breaker Q F, current transformer L1, L2, voltage transformer J, residual current transformer L3 successively, the end of incoming cables of said voltage transformer J is parallel with residual current transformer L4.
Described microcomputer protection equipment for transformer wiring circuit is characterized in that: bus row is adopted in described wiring.
The beneficial effect of the utility model:
The utility model circuit structure is simple, reliable, has simplified the structure of existing wiring circuit, has improved security performance, greatly reduces failure rate, is applicable to the line transformer group protection of 35KV and following electric pressure.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1; A kind of microcomputer protection equipment for transformer wiring circuit; Include the line bank TMY of external power supply; TMY draws wiring from line bank, draws after being connected in series circuit breaker Q F, current transformer L1, L2, voltage transformer J, residual current transformer L3 successively, and the end of incoming cables of voltage transformer J is parallel with residual current transformer L4.
In the utility model, bus row is adopted in wiring.
Claims (2)
1. microcomputer protection equipment for transformer wiring circuit; Include the line bank of external power supply; It is characterized in that: draw wiring from described line bank; Draw after being connected in series circuit breaker Q F, current transformer L1, L2, voltage transformer J, residual current transformer L3 successively, the end of incoming cables of said voltage transformer J is parallel with residual current transformer L4.
2. microcomputer protection equipment for transformer wiring circuit according to claim 1 is characterized in that: bus row is adopted in described wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143792 CN202586279U (en) | 2012-04-06 | 2012-04-06 | Wiring circuit for microcomputer transformer protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143792 CN202586279U (en) | 2012-04-06 | 2012-04-06 | Wiring circuit for microcomputer transformer protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586279U true CN202586279U (en) | 2012-12-05 |
Family
ID=47255647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220143792 Expired - Fee Related CN202586279U (en) | 2012-04-06 | 2012-04-06 | Wiring circuit for microcomputer transformer protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300262A (en) * | 2016-08-26 | 2017-01-04 | 大唐黄岛发电有限责任公司 | A kind of 220kV grade transformer protection method for transformer station's remote power-feeding |
-
2012
- 2012-04-06 CN CN 201220143792 patent/CN202586279U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300262A (en) * | 2016-08-26 | 2017-01-04 | 大唐黄岛发电有限责任公司 | A kind of 220kV grade transformer protection method for transformer station's remote power-feeding |
| CN106300262B (en) * | 2016-08-26 | 2019-02-05 | 大唐黄岛发电有限责任公司 | A kind of 220kV grade transformer protection method for substation's remote power-feeding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130406 |