CN203799860U - Instrument transformer special for outdoor prepayment metering tank - Google Patents
Instrument transformer special for outdoor prepayment metering tank Download PDFInfo
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- CN203799860U CN203799860U CN201420073914.6U CN201420073914U CN203799860U CN 203799860 U CN203799860 U CN 203799860U CN 201420073914 U CN201420073914 U CN 201420073914U CN 203799860 U CN203799860 U CN 203799860U
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- transformer
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- instrument transformer
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Abstract
An instrument transformer special for an outdoor prepayment metering tank comprises a current transformer body band a voltage transformer body, Amorphous alloy is arranged in a secondary coil of the current transformer, resin insulating layers are formed on a primary coil and the secondary oil respectively through resin casting, and a primary outgoing line of the current transformer is led out through a high-voltage silica gel cable. An R type iron ring meeting the requirement for the overvoltage anti-saturation characteristic serves as an iron core of the voltage transformer, a secondary winding and a primary winding of the voltage transformer are arranged coaxially, a magnetic circuit is connected through the R type iron ring, and a primary outgoing line terminal is led out through a primary silica gel cable. One prepayment metering tank is provided with two voltage transformers and two current transformers to carry out V-V wiring. The instrument transformer special for the outdoor prepayment metering tank is reasonable in structure, and attractive and elegant in appearance, has the very good electricity larceny prevention function, observation and meter reading can be conveniently carried out, the instrument transformer is long in service life, the core components, namely the current transformer and the voltage transformer, of the instrument transformer are small in size, high in accuracy, stable, reliable and convenient to wire, and the instrument transformer is wide in application range of high-voltage electric energy, and is especially applicable to small and medium users.
Description
Technical field
The utility model relates to instrument transformer, particularly relates to outdoor prepaying batch meter Special mutual-inductor.
Background technology
Electric energy metrical is the foundation of collecting the electricity charge, and electric power meter is a bar " scale " of both parties, and the measuring accuracy of electric power meter is directly connected to the interests between power department and power consumer.Current prepaying batch meter Special mutual-inductor, comprises current transformer and voltage transformer, large through the instrument transformer overall volume of combination, the primary connection of instrument transformer adopts copper busbar, there is the larger once space of wiring, make the bulky of whole batch meter, be not easy to install.The winding of core parts voltage transformer, under over-voltage condition, does not guarantee certain measuring accuracy, and the magnetic core that Current Transformer Secondary coil adopts has leakage field phenomenon, and therefore sensitivity and poor reliability can cause power supply department and the user dispute in metering.
Utility model content
The technical problems to be solved in the utility model is provide a kind of rational in infrastructure, and appearance looks elegant to be generous, there is very strong anti-stealing electricity function, be convenient to observe and check meter, long service life, its core parts current transformer, voltage transformer volume are little, precision is high, reliable and stable, easy-to-connect, is applicable to high voltage electric energy scope wide, be particularly suitable for middle-size and small-size user, can accurate-metering electric energy
Outdoor prepaying batch meter Special mutual-inductor.
The technical scheme adopting is:
Outdoor prepaying batch meter Special mutual-inductor, comprises current transformer and voltage transformer.The secondary coil inside of described current transformer is non-crystaline amorphous metal, resin-cast resin insulating barrier for primary winding and secondary coil, and its outlet is drawn with high pressure silica gel cable.The iron core of described voltage transformer adopts the R type ring iron that meets overvoltage anti-saturation characteristic, its secondary winding is coaxial with a winding, by R type ring iron, carry out the connection of magnetic circuit, adopt poured with epoxy resin resin insulation crust, one time outlet terminal is drawn with a silica gel cable.Each prepaying batch meter is furnished with two voltage transformers and two current transformers and does and carry out V-V wiring, forms outdoor prepaying batch meter Special mutual-inductor.
The good effect that the utility model is obtained is:
A. the technique that voltage transformer adopts, 0.2 grade of winding also can guarantee certain measuring accuracy when overvoltage 200%, and the output of 220V operating power can also be provided, instrument transformer overall volume is less than voltage transformer of the same type.
B. Current Transformer Secondary coil adopts crystallite magnetic core, guarantees sensitivity and reliability.
C. electric current, an outlet of voltage transformer adopt high-tension cable to draw, and have removed the primary connection copper bar of traditional instrument transformer from, have saved the once space of wiring, have greatly dwindled the volume of whole batch meter, are more convenient for installing.
D. the whole poured with epoxy resin that adopts of instrument transformer insulate, and has good mechanical strength, can realize high electric strength, low office discharge level, and long service life, all material is H level heat proof material, meets the fire protection requirement of fire department.
Accompanying drawing explanation
Fig. 1 is current transformer structure schematic diagram of the present utility model.
Fig. 2 is the end view of Fig. 1.
Fig. 3 is voltage transformer structural representation of the present utility model.
Fig. 4 is the end view of Fig. 3.
Fig. 5 is V-V winding diagram of the present utility model.
Embodiment
Outdoor prepaying batch meter Special mutual-inductor, comprises current transformer and voltage transformer.Secondary coil 2 inside of described current transformer are non-crystaline amorphous metal, guarantee that certainty of measurement reaches 0.2S metering level, primary winding 1 and secondary coil 2 use resin-cast resin insulating barriers 3, and its outlet is drawn with high pressure silica gel cable 4.The iron core of described voltage transformer adopts the R type ring iron 8 that meets overvoltage anti-saturation characteristic, its secondary winding 9 is coaxial with a winding 6, by R type ring iron 8, carry out the connection of magnetic circuit, adopt 7, outlet terminals of poured with epoxy resin resin insulation crust to draw with a silica gel cable 5 of 2.5 square millimeters.Each prepaying batch meter is furnished with two voltage transformers and two current transformers and does and carry out V-V wiring (see figure 5), forms outdoor prepaying batch meter Special mutual-inductor.
Claims (1)
1. outdoor prepaying batch meter Special mutual-inductor, comprise current transformer and voltage transformer, the secondary coil inside that it is characterized in that described current transformer is non-crystaline amorphous metal, resin-cast resin insulating barrier for primary winding and secondary coil, and its outlet is drawn with high pressure silica gel cable; The iron core of described voltage transformer adopts the R type ring iron that meets overvoltage anti-saturation characteristic, its secondary winding is coaxial with a winding, by R type ring iron, carry out the connection of magnetic circuit, adopt poured with epoxy resin resin insulation crust, one time outlet terminal is drawn with a silica gel cable, each prepaying batch meter is furnished with two voltage transformers and two current transformers and does and carry out V-V wiring, forms outdoor prepaying batch meter Special mutual-inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073914.6U CN203799860U (en) | 2014-02-21 | 2014-02-21 | Instrument transformer special for outdoor prepayment metering tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073914.6U CN203799860U (en) | 2014-02-21 | 2014-02-21 | Instrument transformer special for outdoor prepayment metering tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799860U true CN203799860U (en) | 2014-08-27 |
Family
ID=51382055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073914.6U Expired - Fee Related CN203799860U (en) | 2014-02-21 | 2014-02-21 | Instrument transformer special for outdoor prepayment metering tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342152A (en) * | 2017-08-25 | 2017-11-10 | 河南卓达电气有限公司 | A kind of full cast-type combination transformer of phase three-wire three |
| CN108879983A (en) * | 2018-07-11 | 2018-11-23 | 西安电子科技大学 | The non-contact type apparatus for transmitting electric energy of electromagnetic force can be offset |
-
2014
- 2014-02-21 CN CN201420073914.6U patent/CN203799860U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342152A (en) * | 2017-08-25 | 2017-11-10 | 河南卓达电气有限公司 | A kind of full cast-type combination transformer of phase three-wire three |
| CN108879983A (en) * | 2018-07-11 | 2018-11-23 | 西安电子科技大学 | The non-contact type apparatus for transmitting electric energy of electromagnetic force can be offset |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20170221 |