CN203895262U - Outdoor composite insulation current and voltage combined transformer - Google Patents
Outdoor composite insulation current and voltage combined transformer Download PDFInfo
- Publication number
- CN203895262U CN203895262U CN201420284260.1U CN201420284260U CN203895262U CN 203895262 U CN203895262 U CN 203895262U CN 201420284260 U CN201420284260 U CN 201420284260U CN 203895262 U CN203895262 U CN 203895262U
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- coil
- current
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- primary
- transformer
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Links
- 238000009413 insulation Methods 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 21
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 230000032683 aging Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses an outdoor composite insulation current and voltage combined transformer. The outdoor composite insulation current and voltage combined transformer comprises an insulation shell 1, a current transformer and a voltage transformer, wherein the current transformer comprises two primary current coils and two secondary current coils, the two secondary current coils are wound around two iron cores respectively, the two primary current coils are wound around two iron cores respectively, one primary current coil is connected with a one-step installation insert AP1 and a one-step installation insert AP2, the other primary current coil is connected with a one-step installation insert CP1 and a one-step installation insert CP2, and the one-step installation insert AP1, the one-step installation insert AP2, the one-step installation insert CP1 and the one-step installation insert CP2 are arranged on the upper end face of the shell; the voltage transformer comprises two primary voltage coils, two secondary voltage coils and two rectangular iron cores, the two primary voltage coils and the two secondary voltage coils are wound around the two rectangular iron cores respectively, one end of each primary voltage coil is connected with the corresponding primary current coil, the other end of each primary voltage coil is connected with an installation insert B, and the secondary current coils and the secondary voltage coils are connected with secondary wiring terminals respectively. The outdoor composite insulation current and voltage combined transformer is small in size, resistant to aging and small in partial discharge.
Description
Technical field
The utility model relates to a kind of combination transformer, particularly relates to the outdoor combination transformer of a kind of epoxy resin and silicon rubber composite insulation.
Background technology
Current outdoor electric current voltage combination transformer great majority adopt pure resin filled type structure and split modular structure, and it is large that this two schemes is all difficult to solve small product size, waste of raw materials and the large problem of product partial discharge.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of volume little, saves space, saves material, and shield effectiveness and partial discharge are good, and anti-saturation multiple is high, the outdoor combination transformer that ageing resistance is strong.
The technical scheme adopting is:
An outdoor composite insulation current/voltage combination transformer, comprises insulation shell, two current mutual inductor coils and two voltage transformer coils, it is characterized in that:
Current transformer; Comprise the first primary current coil, the first secondary current coil, the first iron core, the second primary current coil, the second secondary current coil and the second iron core; The first secondary current coil, winding is on the first iron core, and the first primary current coil winding is on the first secondary current coil.The second secondary current coil winding on the second iron core the second primary current coil winding on the second secondary current coil.
Voltage transformer, comprises the first primary voltage coil, the first secondary voltage coil, the first rectangular core, the second primary voltage coil, the second secondary voltage coil and the second rectangular core; Winding is on the first rectangular core respectively for the first primary voltage coil and the first secondary voltage coil, and the second primary voltage coil and the winding of the second secondary voltage coil difference are on the second rectangular core.
Two current mutual inductor coils, two voltage transformer coils are by poured with epoxy resin structure in aggregates, and epoxy resin poured body is insulation shell.
The two ends lead-out wire of the first primary current coil of current transformer, through insulation shell, is connected with AP2 with the once mounting inserts AP1 on insulation shell upper surface respectively.The two ends lead-in wire of the second primary current coil, through insulation shell, is connected with CP2 with the once mounting inserts CP1 on insulation shell upper surface respectively.
One end of the first primary voltage coil and the second primary voltage coil is connected with the installation inserts B on insulation shell upper surface through insulation shell, the other end of the first primary voltage coil and the first secondary voltage coil, through after insulation shell, is connected with the second primary winding with the first primary current coil respectively.The two ends lead-out wire of the first secondary current coil, the second secondary current coil, through after insulation shell, connects with secondary current binding post corresponding in the terminal box being arranged on insulation shell; The two ends lead-out wire of the first secondary voltage coil, the second secondary voltage coil is through after insulation shell, be arranged on terminal box in corresponding secondary voltage binding post connection, form corresponding electric current, Voltage-output.
On the outer wall of insulation shell, there is silastic-layer.
Insulation shell is fixed in mounting seat.
The good effect the utlity model has is:
1. thereby voltage transformer adopts rectangle iron core to realize high sensitivity, high measurement accuracy reduces error, and the precision that has overcome big or small no-load voltage ratio differs too large problem;
2. current transformer has no-load voltage ratio translation function, can between two kinds, three kinds no-load voltage ratios, switch, and each winding meets measuring accuracy requirement.
3. shielding process: semiconductive material is evenly distributed in and forms high-tension shielding layer on primary winding.Secondary coil and iron core adopt bulk shielding technique, and screen is by installing inserts ground connection.Office's value of putting reaches below 10Pc, the requirement higher than relevant criterion to local discharging level;
4. whole coil is all cast in epoxy resin inside under vacuum state, can realize high electric strength, low office discharge level, long service life, the target of protecting without oil ring;
5. all material is H level heat proof material, meets the fire protection requirement of fire department;
6. the original same parameter of volume ratio instrument transformer of the same type is little by 35%, saves space, saves material.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the vertical view of Fig. 1.
Embodiment
An outdoor composite insulation current/voltage combination transformer, comprises insulation shell 1, current transformer and voltage transformer, it is characterized in that:
Current transformer, comprises that the first secondary current coil 3 windings are on the first iron core 4.The first primary current coil 2 windings are on the first secondary current coil 3.The second secondary current coil 6 windings are on the second iron core 7.The second primary current coil 5 windings are on the second secondary current coil 6.
Voltage transformer, comprises the first primary voltage coil 8, the first secondary voltage coil 9, a R shape iron core 10, the second primary voltage coil 11, the second secondary coil 12 and the 2nd R shape iron core 13; Winding is on a R shape iron core 10 respectively for the first primary voltage coil 8 and the first secondary voltage coil 9, and the second primary voltage coil 11 and the second secondary voltage coil 12 difference windings are on the 2nd R shape iron core 13.
Current transformer, voltage transformer are by poured with epoxy resin structure in aggregates, and epoxy resin poured body is insulation shell 1.
The two ends lead-out wire of the first primary current coil 2 of current transformer, through insulation shell 1, is connected with AP2 with the once mounting inserts AP1 on insulation shell 1 upper surface respectively.The two ends lead-in wire of the second primary current coil 5, through insulation shell 1, is connected with CP2 with the once mounting inserts CP1 on insulation shell 1 upper surface respectively.
One end of the first primary voltage coil 8 and the second primary voltage coil 11 is connected with the installation inserts B on insulation shell upper surface through insulation shell 1, the other end of the first primary voltage coil 8 and the first secondary voltage coil 9, through after insulation shell 1, is connected with the second primary current coil 5 with the first primary current coil 2 respectively.
The two ends lead-out wire of the first secondary current coil 3, the second secondary current coil 6, through after insulation shell 1, connects with the interior corresponding secondary current binding post 15 of junction board 14 being arranged on insulation shell 1; The two ends lead-out wire of the first secondary voltage coil 9, the second secondary voltage coil 12 is through after insulation shell 1, and is arranged on the interior corresponding secondary voltage binding post 18 of junction board 14 and connects, and forms corresponding electric current, Voltage-output.
On the outer wall of insulation shell 1, there is silastic-layer 16.
Insulation shell 1 is fixed in mounting seat 17.
Claims (3)
1. an outdoor composite insulation current/voltage combination transformer, comprises insulation shell (1), current transformer and voltage transformer, it is characterized in that:
Current transformer, comprise that the first secondary current coil (3) winding is on the first iron core (4); The first primary current coil (5) winding is upper at the first secondary coil (3), and the second secondary current coil (6) winding is upper at the second iron core (7), and the second primary current coil (5) winding is on the second secondary current coil (6);
Voltage transformer, comprises the first primary voltage coil (8), the first secondary voltage coil (9), the first rectangular core (10), the second primary voltage coil (11), the second secondary coil (12) and the second rectangular core (13); The first primary voltage coil (8) and the first secondary voltage coil (9) respectively winding are upper at the first rectangular core (10), and the second primary voltage coil (11) and the winding of the second secondary voltage coil (12) difference are on the second rectangular core (13); Current transformer, voltage transformer are by poured with epoxy resin structure in aggregates, and epoxy resin poured body is insulation shell (1); The two ends lead-out wire of the first primary current coil (2) of current transformer, through insulation shell (1), is connected with AP2 with the once mounting inserts AP1 on insulation shell (1) upper surface respectively; The two ends lead-in wire of the second primary current coil (5), through insulation shell (1), is connected with CP2 with the once mounting inserts CP1 on insulation shell (1) upper surface respectively; One end of the first primary voltage coil (8) and the second primary voltage coil (11) is connected with the installation inserts A on insulation shell upper surface through insulation shell (1), the other end of the first primary voltage coil (8) and the first secondary voltage coil (9), through after insulation shell (1), is connected with the second primary current coil (5) with the first primary current coil (2) respectively; The two ends lead-out wire of the first secondary current coil (3), the second secondary current coil (6), through after insulation shell (1), connects with secondary current binding post (15) corresponding in the junction board (14) being arranged on insulation shell (1); The two ends lead-out wire of the first secondary voltage coil (9), the second secondary voltage coil (12) is through after insulation shell (1), with be arranged on secondary voltage binding post (18) connection corresponding in junction board (14), form corresponding electric current, Voltage-output.
2. a kind of outdoor composite insulation current/voltage combination transformer according to claim 1, is characterized in that: on the outer wall of insulation shell (1), have silastic-layer (16).
3. a kind of outdoor composite insulation current/voltage combination transformer according to claim 1, it is characterized in that: this instrument transformer be by two voltage transformer coils, be cast in two current mutual inductor coils together with, form a whole electric current, voltage combination transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284260.1U CN203895262U (en) | 2014-05-30 | 2014-05-30 | Outdoor composite insulation current and voltage combined transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284260.1U CN203895262U (en) | 2014-05-30 | 2014-05-30 | Outdoor composite insulation current and voltage combined transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895262U true CN203895262U (en) | 2014-10-22 |
Family
ID=51721633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284260.1U Expired - Lifetime CN203895262U (en) | 2014-05-30 | 2014-05-30 | Outdoor composite insulation current and voltage combined transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895262U (en) |
Cited By (1)
| 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 |
-
2014
- 2014-05-30 CN CN201420284260.1U patent/CN203895262U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |