CN209447672U - Voltage transformer for power transmission network potential device - Google Patents
Voltage transformer for power transmission network potential device Download PDFInfo
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- CN209447672U CN209447672U CN201920452164.6U CN201920452164U CN209447672U CN 209447672 U CN209447672 U CN 209447672U CN 201920452164 U CN201920452164 U CN 201920452164U CN 209447672 U CN209447672 U CN 209447672U
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Abstract
The utility model discloses one kind can be by connecting different connecting terminals, to realize in one timing of input side voltage, the adjustable voltage transformer for power transmission network potential device of the range of output voltage.This is used for the voltage transformer of power transmission network potential device, including body, the first winding, the second winding and the tertiary winding；There is inner cavity in the body；The interior intracavitary magnetic core for being provided with two shape of the mouth as one speaks side by side, i.e. the first magnetic core and the second magnetic core；The second winding and the tertiary winding are wound on magnetic core, and the first winding is wrapped on two magnetic cores；So that the second winding and the tertiary winding share first winding；When output wiring terminal is arranged, into being provided with binding post at the half and a quarter of the second winding and the tertiary winding.Therefore it is used for the voltage transformer of power transmission network potential device using this, can be adapted for the instrument of different ranges.
Description
Technical field
It is especially a kind of for power transmission network potential device the utility model relates to the auxiliary appliance of power transmission network potential device
Voltage transformer.
Background technique
Well-known: voltage transformer is similar with transformer, is the instrument of the voltage on conversion line.But become
The purpose of depressor voltage of transformation is to convey electric energy, therefore capacity is very big, typically with kilovolt-ampere or megavolt-ampere be to calculate
Unit；And the purpose of voltage transformer voltage of transformation, it is primarily used to power to measuring instrumentss and protective relaying device, for surveying
Voltage, power and the electric energy of route are measured, or for expensive equipment, motor and the change in line failure in protection circuit
Depressor, therefore the capacity very little of voltage transformer generally all only have several volt-amperes, tens volt-amperes, maximum to be also no more than one kilovolt-ampere.
Voltage transformer is in the timing of input voltage one simultaneously, and inductive output voltage is also in specific range energy, therefore only
It could can be measured using the instrument of corresponding range, therefore matching is poor；It often results in inconvenient to use.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can be by connecting different connecting terminals, thus real
Present one timing of input side voltage, the adjustable voltage transformer for power transmission network potential device of the range of output voltage.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the voltage for power transmission network potential device is mutual
Sensor, including body, the first winding, the second winding and the tertiary winding；There is inner cavity in the body；The interior intracavitary setting
There are two the magnetic core of the shape of the mouth as one speaks side by side, i.e. the first magnetic core and the second magnetic core；Between having between first magnetic core and the second magnetic core
Away from；
First winding passes through the first magnetic core and the second magnetic core, and is wrapped on the first magnetic core and the second magnetic core；It is described
Second winding is wrapped on the first magnetic core；The tertiary winding is wrapped on the second magnetic core；
The ratio of the coil number of the coil number and tertiary winding of second winding is 3:1；The block upper surface setting
There is high-voltage line connecting terminal；The high-voltage line connecting terminal is electrically connected with the first winding；
The block upper surface is provided with the first output voltage terminals subgroup and the second output voltage terminals subgroup；
The first output voltage terminals subgroup include the first connecting terminal, the second connecting terminal, third connecting terminal,
4th connecting terminal；
The second output voltage terminals subgroup includes connecting terminal one, connecting terminal two, connecting terminal three, terminals
Son four；
First connecting terminal is electrically connected with one end of the second winding coil；4th connecting terminal and the second winding
The other end of coil is electrically connected；
Second connecting terminal is electrically connected with coil at the second winding a quarter；Third connecting terminal and the second winding
Coil is electrically connected at half；
The connecting terminal one is electrically connected with one end of tertiary winding coil；The connecting terminal four and tertiary winding coil
The other end electrical connection；
The connecting terminal two is electrically connected with coil at tertiary winding a quarter；Connecting terminal three divides with the tertiary winding two
One of place's coil electrical connection.
Further, the block upper surface is provided with the blower blown to body inner cavity, the bottom of the body inner cavity
It is provided with air outlet.
Preferably, first magnetic core, the second magnetic core are all made of iron core.
Further, high-pressure insulating ring is provided on the outer surface of the high-voltage line connecting terminal.
The beneficial effects of the utility model are: the mutual induction of voltage described in the utility model for power transmission network potential device
Device since there are two magnetic cores side by side for setting, while being wound with the second winding and the tertiary winding, and the first winding on magnetic core
It is wrapped on two magnetic cores；So that the second winding and the tertiary winding share first winding；
Simultaneously when output wiring terminal is arranged, into setting at the half and a quarter of the second winding and the tertiary winding
It is equipped with binding post, to can be adapted for the instrument of different ranges by connecting different binding posts.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the utility model embodiment for the voltage transformer of power transmission network potential device；
Indicated in figure: 1- body, the first magnetic core of 2-, the second magnetic core of 3-, the first winding of 4-, the second winding of 5-, 6- third around
Group, 7- high-voltage line connecting terminal, 8- the first output voltage terminals subgroup, 9- the second output voltage terminals subgroup.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the voltage transformer described in the utility model for power transmission network potential device, it is characterised in that:
Including body 1, the first winding 4, the second winding 5 and the tertiary winding 6；There is inner cavity in the body 1；The interior intracavitary setting
There are two the magnetic core of the shape of the mouth as one speaks side by side, i.e. the first magnetic core 2 and the second magnetic core 3；Have between first magnetic core 2 and the second magnetic core 3
There is spacing；
First winding 4 passes through the first magnetic core 2 and the second magnetic core 3, and is wrapped on the first magnetic core 2 and the second magnetic core 3；
Second winding 5 is wrapped on the first magnetic core 2；The tertiary winding 6 is wrapped on the second magnetic core 3；
The ratio of the coil number of the coil number and tertiary winding 6 of second winding 5 is 3:1；1 upper surface of body is set
It is equipped with high-voltage line connecting terminal 7；The high-voltage line connecting terminal 7 is electrically connected with the first winding；
1 upper surface of body is provided with the first output voltage terminals subgroup 8 and the second output voltage connecting terminal
Group 9；
The first output voltage terminals subgroup 8 includes the first connecting terminal 81, the second connecting terminal 82, third wiring
Terminal 83, the 4th connecting terminal 84；
The second output voltage terminals subgroup 9 includes connecting terminal 1, connecting terminal 2 92, connecting terminal three
93, connecting terminal 4 94；
First connecting terminal 81 is electrically connected with one end of 5 coil of the second winding；4th connecting terminal 84 and
The other end of two windings, 5 coil is electrically connected；
Second connecting terminal 82 is electrically connected with coil at 5 a quarter of the second winding；Third connecting terminal 83 and
Coil is electrically connected at two windings, 5 half；
The connecting terminal 1 is electrically connected with one end of 6 coil of the tertiary winding；The connecting terminal 4 94 and third around
The other end electrical connection of 6 coils of group；
The connecting terminal 2 92 is electrically connected with coil at 6 a quarter of the tertiary winding；Connecting terminal 3 93 and third around
Coil electrical connection at 6 halfs of group.
During application, since the first output voltage terminals subgroup 8 includes the first connecting terminal 81, second
Connecting terminal 82, third connecting terminal 83, the 4th connecting terminal 84；
The second output voltage terminals subgroup 9 includes connecting terminal 1, connecting terminal 2 92, connecting terminal three
93, connecting terminal 4 94；
First connecting terminal 81 is electrically connected with one end of 5 coil of the second winding；4th connecting terminal 84 and
The other end of two windings, 5 coil is electrically connected；
Second connecting terminal 82 is electrically connected with coil at 5 a quarter of the second winding；Third connecting terminal 83 and
Coil is electrically connected at two windings, 5 half；
The connecting terminal 1 is electrically connected with one end of 6 coil of the tertiary winding；The connecting terminal 4 94 and third around
The other end electrical connection of 6 coils of group；
The connecting terminal 2 92 is electrically connected with coil at 6 a quarter of the tertiary winding；Connecting terminal 3 93 and third around
Coil electrical connection at 6 halfs of group.
Therefore, by connecting different output wiring terminals, so as to obtain the output voltage of different range, so that defeated
Voltage is suitable for the instrument of different ranges out.
Voltage transformer described in the utility model for power transmission network potential device, due to being arranged, there are two magnetic side by side
Core, while the second winding and the tertiary winding are wound on magnetic core, and the first winding is wrapped on two magnetic cores；So that
Second winding and the tertiary winding share first winding；Structure can effectively be simplified；
Simultaneously when output wiring terminal is arranged, into setting at the half and a quarter of the second winding and the tertiary winding
It is equipped with binding post, to can be adapted for the instrument of different ranges by connecting different binding posts.
For the ease of voltage transformer heat dissipation, further, 1 upper surface of body is provided with to 1 inner cavity of body and blows
Blower 10, the bottom of 1 inner cavity of body is provided with air outlet 11.
In order to reduce cost, it is preferred that first magnetic core 2, the second magnetic core 3 are all made of iron core.
In order to improve safety, high-pressure insulating ring is provided on the outer surface of the high-voltage line connecting terminal 7.
Claims (4)
1. being used for the voltage transformer of power transmission network potential device, it is characterised in that: including body (1), the first winding (4), second
Winding (5) and the tertiary winding (6)；There is inner cavity in the body (1)；It is described interior intracavitary to be provided with two shape of the mouth as one speaks side by side
Magnetic core, i.e. the first magnetic core (2) and the second magnetic core (3)；There is spacing between first magnetic core (2) and the second magnetic core (3)；
First winding (4) passes through the first magnetic core (2) and the second magnetic core (3), and is wrapped in the first magnetic core (2) and the second magnetic core
(3) on；Second winding (5) is wrapped on the first magnetic core (2)；The tertiary winding (6) is wrapped on the second magnetic core (3)；
The ratio of the coil number of the coil number and tertiary winding (6) of second winding (5) is 3:1；Body (1) upper surface
It is provided with high-voltage line connecting terminal (7)；The high-voltage line connecting terminal (7) is electrically connected with the first winding；
Body (1) upper surface is provided with the first output voltage terminals subgroup (8) and the second output voltage connecting terminal
Group (9)；
The first output voltage terminals subgroup (8) connects including the first connecting terminal (81), the second connecting terminal (82), third
Line terminals (83), the 4th connecting terminal (84)；
The second output voltage terminals subgroup (9) includes connecting terminal one (91), connecting terminal two (92), connecting terminal three
(93), connecting terminal four (94)；
First connecting terminal (81) is electrically connected with one end of the second winding (5) coil；4th connecting terminal (84) with
The other end of the second winding (5) coil is electrically connected；
Second connecting terminal (82) is electrically connected with coil at the second winding (5) a quarter；Third connecting terminal (83) with
Coil is electrically connected at second winding (5) half；
The connecting terminal one (91) is electrically connected with one end of the tertiary winding (6) coil；The connecting terminal four (94) and third
The other end of winding (6) coil is electrically connected；
The connecting terminal two (92) is electrically connected with coil at the tertiary winding (6) a quarter；Connecting terminal three (93) and third
Coil is electrically connected at winding (6) half.
2. the voltage transformer according to claim 1 for power transmission network potential device, it is characterised in that: the body
(1) upper surface is provided with the blower (10) blown to body (1) inner cavity, and the bottom of body (1) inner cavity is provided with air outlet
(11)。
3. the voltage transformer according to claim 1 for power transmission network potential device, it is characterised in that: first magnetic
Core (2), the second magnetic core (3) are all made of iron core.
4. the voltage transformer according to claim 1 for power transmission network potential device, it is characterised in that: the high-voltage line
High-pressure insulating ring is provided on the outer surface of connecting terminal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452164.6U CN209447672U (en) | 2019-04-04 | 2019-04-04 | Voltage transformer for power transmission network potential device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452164.6U CN209447672U (en) | 2019-04-04 | 2019-04-04 | Voltage transformer for power transmission network potential device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209447672U true CN209447672U (en) | 2019-09-27 |
Family
ID=68034361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920452164.6U Active CN209447672U (en) | 2019-04-04 | 2019-04-04 | Voltage transformer for power transmission network potential device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209447672U (en) |
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2019
- 2019-04-04 CN CN201920452164.6U patent/CN209447672U/en active Active
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