CN215377190U - Current and voltage combined mutual inductor - Google Patents
Current and voltage combined mutual inductor Download PDFInfo
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- CN215377190U CN215377190U CN202122154237.3U CN202122154237U CN215377190U CN 215377190 U CN215377190 U CN 215377190U CN 202122154237 U CN202122154237 U CN 202122154237U CN 215377190 U CN215377190 U CN 215377190U
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Abstract
The current-voltage combined transformer comprises a plurality of current transformers which are matched, wherein high-voltage wiring terminals of the current transformers are connected through wires, each current transformer is provided with an umbrella blade, the umbrella blades are connected with silicon rubber wires respectively, and the silicon rubber wires are used for improving the secondary insulation strength; each current transformer is provided with a secondary coil and a secondary iron core which are matched with each other so as to meet the measurement standard; a primary feed-through structure is further arranged on the current transformer so as to facilitate on-site installation and wiring.
Description
The technical field is as follows:
the utility model relates to a current-voltage combined transformer.
Background art:
the transformer is also called as instrument transformer, is a general name of a current transformer and a voltage transformer, can change high voltage into low voltage and change large current into small current, is used for measuring or protecting a system, and has the function of mainly converting the high voltage or the large current into standard low voltage or standard small current in proportion so as to realize the standardization and miniaturization of a measuring instrument, a protecting device and an automatic control device; meanwhile, the mutual inductor can be used for isolating a high-voltage system so as to ensure the safety of people and equipment.
At present, common transformers include electronic transformers, voltage transformers, current transformers, combined transformers, pincer transformers and zero sequence transformers; the mutual-inductor is in the use, and on-the-spot installation process needs more step, when needing a plurality of mutual-inductors simultaneous working, appears the unqualified phenomenon of product installation easily, and the wiring is inconvenient, and the space that leads to the installation to be fixed is less, and secondary dielectric strength is low.
The utility model has the following contents:
the embodiment of the utility model provides a current-voltage combined transformer which is reasonable in structural design, based on a combined structure of a plurality of transformers, a high-voltage wiring terminal is connected through a wire to connect ABC three phases, the ABC three phases are flexible in adjustable space, and the defect of small conventional fixed space is overcome, so that the reject ratio of a product is reduced.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the current-voltage combined transformer comprises a plurality of current transformers which are matched, wherein high-voltage wiring terminals of the current transformers are connected through wires, each current transformer is provided with an umbrella blade, the umbrella blades are connected with silicon rubber wires respectively, and the silicon rubber wires are used for improving the secondary insulation strength; each current transformer is provided with a secondary coil and a secondary iron core which are matched with each other so as to meet the measurement standard; a primary feed-through structure is further arranged on the current transformer so as to facilitate on-site installation and wiring.
Be equipped with trigger subassembly, detection module and protection component between current transformer, trigger the subassembly and be used for making current transformer get into operating condition, detection module is used for detecting current transformer's running state, the protection component is used for carrying out electrical isolation for current transformer, provides insulation protection.
The protection assembly comprises a first normally open switch and a second normally open switch which are arranged in parallel, a first resistor and a first capacitor which are connected in parallel are arranged on the first normally open switch, and a second resistor and a second capacitor which are connected in parallel are arranged on the second normally open switch; and current transformer interfaces are respectively arranged on the first normally-open switch and the second normally-open switch so as to connect the current transformers.
The trigger assembly comprises a trigger, the type of the trigger is FDS9945, a third resistor is arranged between a first pin and a second pin of the trigger, and a fourth resistor is arranged between the third pin and a fourth pin of the trigger; a pin II and a pin III of the trigger are trigger signal input pins; and a current transformer is connected to the pin five and the pin eight of the trigger.
The detection assembly is a temperature sensor, the type of the temperature sensor is DS18B20, 3 pins are arranged on the temperature sensor, a fifth resistor is arranged between the second pin and the third pin of the temperature sensor, and the second pin of the temperature sensor is a temperature parameter input pin.
By adopting the structure, the secondary insulation strength is increased through the silicon rubber wire, and the climbing tool is increased through the umbrella blades on the current transformer; the one-time punching structure on the current transformer facilitates on-site installation and wiring, the protection assembly, the trigger assembly and the detection assembly guarantee normal operation of the current transformer, and the current transformer has the advantages of convenience in installation and low cost.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the current transformer of the present invention.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a control schematic of the present invention.
Fig. 5 is an electrical schematic of the protective assembly of the present invention.
Fig. 6 is an electrical schematic of the trigger assembly of the present invention.
FIG. 7 is an electrical schematic of the detection assembly of the present invention.
In the figure, 1, a parachute leaf, 2, a silicon rubber wire, 3, a secondary coil, 4, a secondary iron core, 5 and a primary piercing structure.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-7, the current-voltage combined transformer comprises a plurality of current transformers which are arranged in a matched manner, high-voltage connecting terminals of the current transformers are connected through wires, each current transformer is provided with an umbrella leaf 1, the umbrella leaves 1 are connected with silicon rubber wires 2, and the silicon rubber wires 2 are used for improving the secondary insulation strength; each current transformer is provided with a secondary coil 3 and a secondary iron core 4 which are matched with each other so as to meet the measurement standard; a primary feed-through structure 5 is further arranged on the current transformer so as to facilitate on-site installation and wiring.
Be equipped with trigger subassembly, detection module and protection component between current transformer, trigger the subassembly and be used for making current transformer get into operating condition, detection module is used for detecting current transformer's running state, the protection component is used for carrying out electrical isolation for current transformer, provides insulation protection.
The protection assembly comprises a first normally open switch and a second normally open switch which are arranged in parallel, a first resistor and a first capacitor which are connected in parallel are arranged on the first normally open switch, and a second resistor and a second capacitor which are connected in parallel are arranged on the second normally open switch; and current transformer interfaces are respectively arranged on the first normally-open switch and the second normally-open switch so as to connect the current transformers.
The trigger assembly comprises a trigger, the type of the trigger is FDS9945, a third resistor is arranged between a first pin and a second pin of the trigger, and a fourth resistor is arranged between the third pin and a fourth pin of the trigger; a pin II and a pin III of the trigger are trigger signal input pins; and a current transformer is connected to the pin five and the pin eight of the trigger.
The detection assembly is a temperature sensor, the type of the temperature sensor is DS18B20, 3 pins are arranged on the temperature sensor, a fifth resistor is arranged between the second pin and the third pin of the temperature sensor, and the second pin of the temperature sensor is a temperature parameter input pin.
The working principle of the current-voltage combined transformer in the embodiment of the utility model is as follows: the combined structure based on a plurality of mutual inductors, high voltage wiring terminal passes through the wire and connects out the ABC three-phase, and the ABC three-phase is adjustable in space nimble, has avoided the little drawback in fixed space of traditional formula to reduced the defective rate of product, simultaneously, the mutual inductor once inclines for the punching formula, makes things convenient for the on-the-spot installation wiring, has saved mutual inductor on-the-spot installation distance, and the secondary side sets up the silicon rubber wire, has promoted secondary dielectric strength, can all be suitable for to different models and different kind's mutual inductor.
In the integral scheme, the high-voltage insulation type transformer comprises a plurality of current transformers which are matched with one another, wherein high-voltage wiring terminals of the current transformers are connected through wires, each current transformer is provided with an umbrella leaf 1, and the umbrella leaves 1 are connected with silicon rubber wires 2 respectively and used for improving the secondary insulation strength; each current transformer is provided with a secondary coil 3 and a secondary iron core 4 which are matched with each other so as to meet the measurement standard; still be equipped with once on current transformer and wear structure 5 to the wiring is installed to the convenient scene, relies on above-mentioned integrated configuration, effectively practices thrift the cost of labor, has reduced the disability rate of product, thereby satisfies use and experimental requirement.
Furthermore, a trigger component, a detection component and a protection component are directly arranged on the current sensor, the running state of the current transformer is detected, and a trigger signal is sent to the current transformer to work; meanwhile, the electric isolation can be realized, and the insulation protection is provided for the current sensor.
Preferably, the protection assembly comprises a first normally open switch and a second normally open switch which are arranged in parallel, a first resistor and a first capacitor which are connected in parallel are arranged on the first normally open switch, and a second resistor and a second capacitor which are connected in parallel are arranged on the second normally open switch; current transformer interfaces are respectively arranged on the first normally-open switch and the second normally-open switch so as to connect the current transformers; under the combined action of the first normally-open switch and the second normally-open switch which are connected in parallel, the action of driving the current transformers is triggered respectively, and each current transformer corresponds to the corresponding setting independently, so that the protection assembly can be effectively electrically isolated between the current transformers, misoperation and electrical interference are avoided, and the action is accurate.
Preferably, the trigger assembly comprises a trigger, the type of the trigger is FDS9945, a third resistor is arranged between a first pin and a second pin of the trigger, and a fourth resistor is arranged between the third pin and a fourth pin of the trigger; a pin II and a pin III of the trigger are trigger signal input pins; the current transformers are connected to the pin V and the pin eighth of the trigger, and the trigger can rapidly and accurately trigger the corresponding current transformers under the action of the trigger signal input pin.
In particular, the connection modes of the current transformers vary depending on the types of the current transformers, and the current transformers are arranged and connected according to actual use scenes.
Preferably, the detection component is a temperature sensor, the temperature sensor is DS18B20 in type, 3 pins are arranged on the temperature sensor, a fifth resistor is arranged between the second pin and the third pin of the temperature sensor, the second pin of the temperature sensor is a temperature parameter input pin to detect the temperature parameter of the current transformer, and the current transformer is prevented from being influenced by overhigh temperature rise.
In summary, the current-voltage combined transformer in the embodiment of the utility model is based on a combined structure of a plurality of transformers, the high-voltage wiring terminals are connected through wires to connect the ABC three phases, the ABC three phases are flexible in adjustable space, and the defect of small conventional fixed space is avoided, so that the reject ratio of products is reduced.
The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (5)
1. Current and voltage combined transformer, its characterized in that: the high-voltage connection terminal of the current transformers is connected through a wire, each current transformer is provided with an umbrella blade, the umbrella blades are connected with silicon rubber wires respectively, and the silicon rubber wires are used for improving the secondary insulation strength; each current transformer is provided with a secondary coil and a secondary iron core which are matched with each other so as to meet the measurement standard; a primary feed-through structure is further arranged on the current transformer so as to facilitate on-site installation and wiring.
2. A current-voltage combination transformer according to claim 1, characterized in that: be equipped with trigger subassembly, detection module and protection component between current transformer, trigger the subassembly and be used for making current transformer get into operating condition, detection module is used for detecting current transformer's running state, the protection component is used for carrying out electrical isolation for current transformer, provides insulation protection.
3. A current-voltage combination transformer according to claim 2, characterized in that: the protection assembly comprises a first normally open switch and a second normally open switch which are arranged in parallel, a first resistor and a first capacitor which are connected in parallel are arranged on the first normally open switch, and a second resistor and a second capacitor which are connected in parallel are arranged on the second normally open switch; and current transformer interfaces are respectively arranged on the first normally-open switch and the second normally-open switch so as to connect the current transformers.
4. A current-voltage combination transformer according to claim 2, characterized in that: the trigger assembly comprises a trigger, the type of the trigger is FDS9945, a third resistor is arranged between a first pin and a second pin of the trigger, and a fourth resistor is arranged between the third pin and a fourth pin of the trigger; a pin II and a pin III of the trigger are trigger signal input pins; and a current transformer is connected to the pin five and the pin eight of the trigger.
5. A current-voltage combination transformer according to claim 2, characterized in that: the detection assembly is a temperature sensor, the type of the temperature sensor is DS18B20, 3 pins are arranged on the temperature sensor, a fifth resistor is arranged between the second pin and the third pin of the temperature sensor, and the second pin of the temperature sensor is a temperature parameter input pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154237.3U CN215377190U (en) | 2021-09-07 | 2021-09-07 | Current and voltage combined mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154237.3U CN215377190U (en) | 2021-09-07 | 2021-09-07 | Current and voltage combined mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215377190U true CN215377190U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122154237.3U Active CN215377190U (en) | 2021-09-07 | 2021-09-07 | Current and voltage combined mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215377190U (en) |
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2021
- 2021-09-07 CN CN202122154237.3U patent/CN215377190U/en active Active
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