CN2221254Y - Device for preventing error connecting of secondary terminal of current transformer - Google Patents
Device for preventing error connecting of secondary terminal of current transformer Download PDFInfo
- Publication number
- CN2221254Y CN2221254Y CN 94214157 CN94214157U CN2221254Y CN 2221254 Y CN2221254 Y CN 2221254Y CN 94214157 CN94214157 CN 94214157 CN 94214157 U CN94214157 U CN 94214157U CN 2221254 Y CN2221254 Y CN 2221254Y
- Authority
- CN
- China
- Prior art keywords
- screw
- mutual inductor
- current mutual
- preventing
- utility
- 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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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a device for preventing the error short circuit of the secondary terminal of the current mutual inductor. The secondary terminals of the existing current mutual inductor are connected with the secondary circuit by ordinary non-opening screws, error short connection preventing measures are not effectively carried out between the terminals, when the secondary terminals are in short connection, the electric energy measurement and the relay protection are affected seriously. The error short circuit preventing device of the utility model is composed of auger screws and insulation caps, and thereby, the failures and the errors can be reliably prevented.
Description
The utility model relates to 400V, the anti-error short-circuit device of 10KV secondary wiring of current mutual inductor end.
400V, the 10KV current transformer is 400V, the capital equipment of 10KV electric power system current monitoring; each current transformer all is provided with secondary connection terminal screw terminal, is connected in series electric energy metrical, relaying protection during use between secondary connection terminal and lead; equipment such as measuring instrument form secondary circuit.The secondary wiring of current mutual inductor terminal of original technology is to use the normal screws of not perforate to connect with secondary circuit; the terminal screw is exposed; and the naked body is isolated between the secondary connection terminal; be easy to by wrong short circuit; if it is artificial; or wrong head end position at the secondary wiring of current mutual inductor terminal; it is the screw position; use the plain conductor short circuit; so, be serially connected in the electric energy metrical of rear, relaying protection; equipment such as measuring instrument; to there be current flowing, electric energy metrical relaying protection, measuring instrument because of the short circuit at the screw position of secondary terminal; to lose due monitoring effect, especially electric energy metrical have a strong impact on electric energy owing to the loop defluidization correct metering." whole nation is for the electricity consumption rule " regulation by the promulgation of the Ministry of Industry of State Grid without the permission of power department, must not will be connected to electric power meter, protective relaying device, the secondary circuit short circuit of equipment such as measuring instrument.
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of secondary wiring of current mutual inductor terminal that prevents by the device of wrong short circuit.
The utility model is useful for 400V, the anti-error short-circuit device aspect of 10KV secondary wiring of current mutual inductor end, by screw 1, insulator cap 2 insulated wires 3 and seal bullet 6 constitute, insulator cap 2 usefulness insulating material are made, be enclosed within on the screw 1, the top-side of screw is drilled with through hole 4, the aperture is 1.2mm, insulator cap 2 is drilled with hole 5 at the corresponding site with screw hole 4, insulated wire 3 passes hole 5 and hole 4, and screw 1 and insulator cap 2 are fixed together, and the two ends of insulated wire 3 are blocked with seal bullet 6 and compressed and the unlikely sign that comes off and show seal.Between the desire of mistake is with secondary wiring of current mutual inductor screw terminal during with the plain conductor short circuit, because insulator cap has entangled the terminal screw of the secondary connection end of current transformer, and insulated wire is sealed up by the seal bullet again and is compressed, the terminal screw can't be turned on short circuit, prevents that secondary wiring of current mutual inductor end knob is by the effect of wrong short circuit thereby played.
Accompanying drawing is a structural representation of the present utility model.
The utility model is simple in structure, and is easy to use, implement easily, and be one Plant effective anti-error short-circuit device.
Claims (2)
1, a kind of anti-error short-circuit device of secondary wiring of current mutual inductor end that includes screw (1), the top-side that it is characterized in that screw (1) is drilled with through hole (4), the insulator cap made from insulating material (2) is enclosed within on the screw (1), insulator cap (2) is drilled with hole (5) with the corresponding site of screw (4), and insulated wire (3) passes hole (4), (5) are fixed together screw (1) and insulator cap (2).
2, anti-error short-circuit device according to claim 1 is characterized in that the two ends of empire silk (3) compress with seal bullet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214157 CN2221254Y (en) | 1994-06-14 | 1994-06-14 | Device for preventing error connecting of secondary terminal of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214157 CN2221254Y (en) | 1994-06-14 | 1994-06-14 | Device for preventing error connecting of secondary terminal of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2221254Y true CN2221254Y (en) | 1996-02-28 |
Family
ID=33830495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94214157 Expired - Fee Related CN2221254Y (en) | 1994-06-14 | 1994-06-14 | Device for preventing error connecting of secondary terminal of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2221254Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207167A (en) * | 2015-09-07 | 2015-12-30 | 天津送变电工程公司 | Protection method of CT mistaken sealing preventing protection system |
-
1994
- 1994-06-14 CN CN 94214157 patent/CN2221254Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207167A (en) * | 2015-09-07 | 2015-12-30 | 天津送变电工程公司 | Protection method of CT mistaken sealing preventing protection system |
| CN105207167B (en) * | 2015-09-07 | 2018-03-06 | 天津送变电工程公司 | A kind of guard method of anti-misplacement CT protections system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |