CN2591738Y - Whole-self-protection three phase dry type distributing transformer - Google Patents
Whole-self-protection three phase dry type distributing transformer Download PDFInfo
- Publication number
- CN2591738Y CN2591738Y CN 02288255 CN02288255U CN2591738Y CN 2591738 Y CN2591738 Y CN 2591738Y CN 02288255 CN02288255 CN 02288255 CN 02288255 U CN02288255 U CN 02288255U CN 2591738 Y CN2591738 Y CN 2591738Y
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Abstract
The utility model relates to a whole-self-protection three phase dry type distributing transformer, which comprises a transformer body, a phase-loss protection relay, a low-voltage circuit breaker and a high-voltage fuse and a high-voltage lightning arrester which are matched with every phase, wherein, one end of the high-voltage fuse is connected with the wire end of a high-voltage coil of the transformer, and the other end of the high-voltage fuse is hung on a high-voltage insulator at the high-voltage input end of the transformer. One end of the high-voltage lightning arrester is also connected with the high-voltage input end of the transformer, and the grounding end of the high-voltage lightning arrester is positioned at an upper clamping element of the transformer body. The phase-loss protection relay and the low-voltage circuit breaker are arranged on a bracket connected with the clamping element of the transformer and are connected with the wire end of a low-voltage coil of the transformer via insulated conducting wires. The utility model not only can cause the three phase dry type distributing transformer to have the functions of low-voltage overload protection, low-voltage short circuit protection, low-voltage phase-loss protection, high-voltage and over-voltage protection, high-voltage current limiting protection, etc., but also can simplify distributing facilities at high-voltage and low-voltage sides, reduce the area of a distribution room and enhance the running reliability of the three phase dry type distributing transformer.
Description
Technical field
The utility model relates to the 3-phase dry type distribution transformer that has full self-shield (CSP, Complete-self protection, a complete set of autoprotection) function.
Background technology
Existing dry-type distribution transformer comprises that amorphous alloy core and the silicon steel dry-type distribution transformer that constitutes unshakable in one's determination do not possess defencive functions such as overload, short circuit and overvoltage; in high-pressure side and low-pressure side the high and low voltage switch cabinet must be installed, to implement protection to high-voltage distribution network and dry-type distribution transformer for this reason.But this mode makes that the distribution facility of high-pressure side and low-pressure side is more, the corresponding increase of the area of switchgear house.
The utility model content
The purpose of this utility model is to provide a kind of 3-phase dry type distribution transformer with a complete set of autoprotection function, and it can simplify the distribution facility of high-pressure side and low-pressure side, reduces the area of switchgear house, strengthens the dry-type distribution transformer reliability of operation.
A kind of full self-shield 3-phase dry type distribution transformer provided by the utility model, comprise 3-phase dry type distribution transformer device body, it is characterized in that, it also comprises the annex with full self-protection function, that is: the high-tension fuse and the high-voltage arrester of an open-phase protection relay, a low-voltage circuit breaker and every phase configuration, wherein: an end of described high-tension fuse is connected the line end of the high-tension coil of described dry-type distribution transformer, and its other end is suspended on the high-tension insulator of described dry-type distribution transformer high voltage input terminal; One end of described high-voltage arrester also is connected on the described dry-type distribution transformer high voltage input terminal, and its earth terminal is located on the upper clamping piece of described dry-type distribution transformer device body; Described open-phase protection relay is contained on the support that is connected with described dry-type distribution transformer folder with low-voltage circuit breaker, and is connected by insulated conductor on the line end of described 3-phase dry type distribution transformer low-voltage coil.
Adopt above-mentioned technical solution, when step down side output circuit overload or short circuit, low-voltage circuit breaker can be threaded off automatically and be excised fault or overload circuit; When the transformer body broke down, high-tension fuse fusing disconnected transformer and high-voltage distribution network, and the protection high-voltage distribution network is without prejudice.If phase high-tension fuse fusing, step down side will phase shortage be powered, and at this moment, the open-phase protection relay action is threaded off low-voltage circuit breaker, prevents to power to low-voltage load circuit phase shortage.In addition, high-voltage arrester can be to the overvoltage protection of transformer enforcement from high-voltage distribution network.Therefore; the utility model not only makes the 3-phase dry type distribution transformer have full self-shield CSP function; be low pressure overload protection, low pressure short-circuit protection, functions such as low voltage open-phase protection, high pressure overvoltage protection and high-voltage and current-limitation protection; and can simplify the distribution facility of high and low pressure side; reduce the area of switchgear house, strengthen 3-phase dry type distribution transformer reliability of operation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1; the utility model; it is a kind of full self-shield 3-phase dry type distribution transformer; comprise 3-phase dry type distribution transformer device body and annex with full self-protection function; that is: the high-tension fuse 2 and the high-voltage arrester 3 of an open-phase protection relay 7, a low-voltage circuit breaker 8 and every phase configuration, wherein:
The line end of transformer high-voltage coil 1 is connected with high-tension fuse 2 one ends, and the other end of fuse is suspended on the high-tension insulator 4, and this terminal is the input terminal A of transformer high-voltage, B, C.Also be connected to high-voltage arrester 3 on high voltage input terminal, the earth terminal of lightning arrester is located on the upper clamping piece 5.The support 10 that is connected with folder is equipped with open-phase protection relay 7 and low-voltage circuit breaker 8; insulated conductor 6 links together the binding post of the line end of low voltage winding in transformers and circuit breaker 8, open-phase protection relay 7; circuit breaker below terminal block 9 is the lead-out terminal a of transformer low voltage, b, c.
During installation, the user only needs the high and low pressure cable is connected respectively on the sub-ABC of high voltage input terminal of this transformer and the sub-a of low-voltage output, b, the c, and full self-shield 3-phase dry type distribution transformer of the present utility model can put into operation.
Claims (1)
1. full self-shield 3-phase dry type distribution transformer; comprise 3-phase dry type distribution transformer device body; it is characterized in that; it also comprises the annex with full self-protection function; that is: the high-tension fuse and the high-voltage arrester of an open-phase protection relay, a low-voltage circuit breaker and every phase configuration, wherein:
One end of described high-tension fuse is connected the line end of the high-tension coil of described dry-type distribution transformer, and its other end is suspended on the high-tension insulator of described dry-type distribution transformer high voltage input terminal;
One end of described high-voltage arrester also is connected on the described dry-type distribution transformer high voltage input terminal, and its earth terminal is located on the upper clamping piece of described dry-type distribution transformer device body;
Described open-phase protection relay is contained on the support that is connected with described dry-type distribution transformer folder with low-voltage circuit breaker, and is connected by insulated conductor on the line end of described 3-phase dry type distribution transformer low-voltage coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288255 CN2591738Y (en) | 2002-12-13 | 2002-12-13 | Whole-self-protection three phase dry type distributing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288255 CN2591738Y (en) | 2002-12-13 | 2002-12-13 | Whole-self-protection three phase dry type distributing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591738Y true CN2591738Y (en) | 2003-12-10 |
Family
ID=33748204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288255 Expired - Lifetime CN2591738Y (en) | 2002-12-13 | 2002-12-13 | Whole-self-protection three phase dry type distributing transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591738Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964245A (en) * | 2009-07-24 | 2011-02-02 | 上海瑞奇电气设备有限公司 | Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection |
| CN104064335A (en) * | 2014-06-10 | 2014-09-24 | 天津市三源电力设备制造有限公司 | Mutual inductance power source for built-in fusible cutout |
| CN108987074A (en) * | 2018-08-21 | 2018-12-11 | 李涵 | A kind of transformer safety means of defence |
| CN108987047A (en) * | 2018-07-18 | 2018-12-11 | 江苏恒屹变压器有限公司 | A kind of three-phase dry-power transformer |
| CN109087781A (en) * | 2018-08-21 | 2018-12-25 | 李涵 | A kind of high-tension transformer |
-
2002
- 2002-12-13 CN CN 02288255 patent/CN2591738Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964245A (en) * | 2009-07-24 | 2011-02-02 | 上海瑞奇电气设备有限公司 | Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection |
| CN104064335A (en) * | 2014-06-10 | 2014-09-24 | 天津市三源电力设备制造有限公司 | Mutual inductance power source for built-in fusible cutout |
| CN108987047A (en) * | 2018-07-18 | 2018-12-11 | 江苏恒屹变压器有限公司 | A kind of three-phase dry-power transformer |
| CN108987074A (en) * | 2018-08-21 | 2018-12-11 | 李涵 | A kind of transformer safety means of defence |
| CN109087781A (en) * | 2018-08-21 | 2018-12-25 | 李涵 | A kind of high-tension transformer |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121213 Granted publication date: 20031210 |