CN203491783U - Self-powered system of ring main unit - Google Patents
Self-powered system of ring main unit Download PDFInfo
- Publication number
- CN203491783U CN203491783U CN201320526299.5U CN201320526299U CN203491783U CN 203491783 U CN203491783 U CN 203491783U CN 201320526299 U CN201320526299 U CN 201320526299U CN 203491783 U CN203491783 U CN 203491783U
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- Prior art keywords
- transformer
- main unit
- ring main
- self
- relay
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Abstract
The utility model discloses a self-powered system of a ring main unit. The self-powered system of the ring main unit comprises a first transformer, a second transformer, a current sensor and a third transformer which are sequentially connected. The self-powered system of the ring main unit further comprises a rectifier, a super capacitor, a relay, an inverter, a digital signal processor, a temperature sensor and a humidity sensor, wherein the rectifier, the super capacitor, the relay and the inverter are sequentially connected. An input terminal of the first transformer is connected with the alternating current; an input terminal of the rectifier is connected with an output terminal of the first transformer; an output terminal of the inverter is connected with an input terminal of the third transformer; and the digital signal processor is respectively connected with the current sensor, the relay, the temperature sensor and the humidity sensor. The self-powered system of the ring main unit is low in cost and capable of ensuring continuous electricity supply to the ring main unit under various conditions, especially in the high-temperature environment and in the low-temperature environment.
Description
Technical field
The utility model relates to a kind of ring main unit self-contained electric system.
Background technology
Ring main unit is as a ring very important in electric match system, and its safe and reliable operation is very important.Therefore, guarantee its uninterrupted power supply in various severe operational environments, be even more important.Can obtain power supply by layout dc-battery group, and at ring main unit scene, be subject to the impact of ambient temperature very large, particularly when high low temperature, the discharge capability of battery and long-term performance of not carrying out after deep discharge all can be a greater impact, storage battery can not normal power supply, once and at the scene line outage just will lose the main source of power supply.Therefore, design realizes rationally, ring main unit self-contained electric system is that the applicant is devoted to the problem solving cheaply.
Summary of the invention
The purpose of this utility model is to provide a kind of ring main unit self-contained electric system, by utilizing super capacitor to replace traditional storage battery, and warm, the mode of humidity sensor to the monitoring of environment, with lower cost, guaranteed in various situations, especially the uninterrupted power supply to ring main unit under high and low temperature environment.
The technical scheme that realizes above-mentioned purpose is:
A kind of ring main unit self-contained electric system, access civil power, it is characterized in that, comprise the first transformer, the second transformer, current sensor, the 3rd transformer, rectifier, super capacitor, relay, inverter, digital signal processor, temperature sensor and humidity sensor, wherein:
The input access civil power of described the first transformer;
Described the first transformer, the second transformer, current sensor and the 3rd transformer are connected successively;
Described rectifier, super capacitor, relay and inverter are connected successively;
The input of described rectifier connects the output of described the first transformer;
The output of described inverter connects the input of described the 3rd transformer;
Described digital signal processor connects respectively described current sensor, relay, temperature sensor and humidity sensor.
The beneficial effects of the utility model are: the utility model, by utilizing super capacitor to replace traditional storage battery, utilizes temperature, humidity sensor to environmental monitoring, has guaranteed the uninterrupted power supply to ring main unit when high low temperature.Meanwhile, the signal that utilizes current sensor to gather, guarantees when ring main unit loses main power supply, connects in time super capacitor and realizes power supply.Meanwhile, the utility model is simple in structure, with low cost, is easy to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of ring main unit self-contained electric system of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, ring main unit self-contained electric system of the present utility model, comprise the first transformer 1, the second transformer 2, current sensor 3, the 3rd transformer 4, rectifier 5, super capacitor 6, relay 7, inverter 8, digital signal processor 9, temperature sensor 10 and humidity sensor 11, wherein:
The first transformer 1, the second transformer 2, current sensor 3 are connected successively with the 3rd transformer 4; The input access civil power of the first transformer 1, output connects the input of the second transformer 2;
Rectifier 5, super capacitor 6, relay 7 and inverter 8 are connected successively; The input of rectifier 5 connects 1 output of the first transformer; The output of inverter 8 connects the input of the 3rd transformer 4;
In the utility model, civil power is supplied with ring main unit through the first transformer 1, the second transformer 2, current sensor 3 and the 3rd transformer 4 on the one hand, and the opposing party gives super capacitor 6 chargings after rectifier 5 rectifications; Current sensor 3 gathers current signal, temperature sensor 10 collecting temperature signals, and humidity sensor 11 gathers moisture signal, all passes to digital signal processor 9; Digital signal processor 9 converts the various types of signal of reception to digital signal, and digital signal is analyzed; According to the analysis result of current signal, in confirmation, lose mains supply or be about to lose after mains supply, control relay 7 is connected, and makes super capacitor 6 power supplies.Meanwhile, digital signal processor 9 is according to the analysis result to temperature, moisture signal, the break-make of control relay 7.To sum up, realize the uninterrupted power supply to ring main unit.In the present embodiment, the model TMS320F2812 that digital signal processor 9 is selected.
Claims (1)
1. a ring main unit self-contained electric system, access civil power, it is characterized in that, comprise the first transformer, the second transformer, current sensor, the 3rd transformer, rectifier, super capacitor, relay, inverter, digital signal processor, temperature sensor and humidity sensor, wherein:
The input access civil power of described the first transformer;
Described the first transformer, the second transformer, current sensor and the 3rd transformer are connected successively;
Described rectifier, super capacitor, relay and inverter are connected successively;
The input of described rectifier connects the output of described the first transformer;
The output of described inverter connects the input of described the 3rd transformer;
Described digital signal processor connects respectively described current sensor, relay, temperature sensor and humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526299.5U CN203491783U (en) | 2013-08-27 | 2013-08-27 | Self-powered system of ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526299.5U CN203491783U (en) | 2013-08-27 | 2013-08-27 | Self-powered system of ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491783U true CN203491783U (en) | 2014-03-19 |
Family
ID=50262585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320526299.5U Expired - Lifetime CN203491783U (en) | 2013-08-27 | 2013-08-27 | Self-powered system of ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414244A (en) * | 2013-08-27 | 2013-11-27 | 国家电网公司 | Ring main unit self-powered system |
-
2013
- 2013-08-27 CN CN201320526299.5U patent/CN203491783U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414244A (en) * | 2013-08-27 | 2013-11-27 | 国家电网公司 | Ring main unit self-powered system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |