CN202871496U - Pre-magnetizing transformer with voltage regulator - Google Patents
Pre-magnetizing transformer with voltage regulator Download PDFInfo
- Publication number
- CN202871496U CN202871496U CN 201220579334 CN201220579334U CN202871496U CN 202871496 U CN202871496 U CN 202871496U CN 201220579334 CN201220579334 CN 201220579334 CN 201220579334 U CN201220579334 U CN 201220579334U CN 202871496 U CN202871496 U CN 202871496U
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- transformer
- voltage regulator
- magnetizing
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Abstract
The utility model relates to a pre-magnetizing transformer with a voltage regulator, and belongs to the technical field of transformer production. The pre-magnetizing transformer with the voltage regulator comprises a primary side winding (1), the voltage regulator (4), a secondary side winding (2) and an auxiliary winding (3). The first side winding is arranged on the high-voltage side of the transformer, the second side winding and the auxiliary winding are arranged on the low-voltage side of the transformer. A voltage of the auxiliary winding is lower than a voltage of the second side winding. An electric current of the auxiliary winding is an field current of an iron core, and a phase position of the auxiliary winding is the same with a phase position of the first side winding. The auxiliary winding is connected with a low-voltage grid of the second side winding through the voltage regulator. Excitation of the transformer iron core is achieved by the auxiliary winding through slow rising of a voltage of the voltage regulator, and stable magnetic flow is built in the iron core. Malfunctions of a main circuit inlay are avoided, and bad influences caused by magnetizing rush current in a major loop are eliminated at the same time. The re-magnetizing transformer with the voltage regulator is more suitable for electric systems with smaller short current capacities and has a function of eliminating transformer no-load closing magnetizing rush current.
Description
Technical field
The utility model relates to a kind of pre-magnetizing transformer with voltage regulator, belongs to the transformer production technical field.
Background technology
At present, use the Dry-Transformer Technology field at boats and ships, electric pressure and the capacity of dry-type transformer are increasing, and this just needs the capacity of short circuit of electric power system enough large.The capacity of short circuit of this type of electric power system of background technology is generally less, in such cases, when if the capacity of transformer and electric pressure are very large in the system, transformer may larger magnetizing inrush current will occur in the process of idle-loaded switching-on, this electric current also may cause the misoperation of major loop relay, affects normal, the safe operation of all the other power consumption equipments in the system.The larger magnetizing inrush current of how eliminating in the major loop is this area problem demanding prompt solution.
The utility model content
The purpose of this utility model provides a kind of pre-magnetizing transformer with voltage regulator, and the magnetizing inrush current of eliminating transformer idle-loaded switching-on solves the problems referred to above that background technology exists.
The technical solution of the utility model is: a kind of pre-magnetizing transformer with voltage regulator, comprise first side winding, voltage regulator, secondary side winding and auxiliary winding, first side winding is arranged on the high-pressure side of transformer, secondary side winding and auxiliary winding are arranged on the low-pressure side of transformer, should auxiliary winding voltage be lower than secondary side voltage, electric current is the exciting current of iron core, phase place and primary side (high-pressure side) winding same-phase; Auxiliary winding connects with the secondary side low voltage electric network by voltage regulator.
Size according to first side winding and secondary side winding technical parameter calculative determination iron core exciting current; According to the electric current of first side winding calculating and the voltage of low voltage electric network, calculate capacity and the number of turn parameter of auxiliary winding (pre-magnetizing winding); At the auxiliary winding of the bottom of secondary side winding coiling; Capacity and number of turn parameter according to low voltage electric network voltage and auxiliary winding (pre-magnetizing winding) are determined adaptive voltage regulator; To assist Winding tap to connect with voltage regulator; Voltage regulator is accessed low voltage electric network; First with the breaker closing between voltage regulator and the low-voltage electrical network; The output voltage of voltage regulator gradually raises; The voltage regulator output voltage is finished the iron core pre-magnetizing after being raised to rated voltage, then to the first side winding idle-loaded switching-on.
Good effect of the present utility model: by the slow rising of voltage regulator voltage, auxiliary winding is finished the excitation to transformer core, has set up a stable state magnetic flux in iron core.Under this state, just can not produce magnetizing inrush current during transformer primary side idle-loaded switching-on.Avoid the misoperation of main line relay, eliminated simultaneously magnetizing inrush current issuable harmful effect in major loop.This Project Product more is applicable to the less electric power system of capacity of short circuit.The utility model is compared with common dry-type transformer, has the effect of eliminating transformer idle-loaded switching-on magnetizing inrush current.
Description of drawings
Fig. 1 is the utility model embodiment schematic diagram;
Among the figure: first side winding 1, secondary side winding 2, auxiliary winding 3, voltage regulator 4.
Embodiment
Below in conjunction with accompanying drawing, by embodiment the utility model is described further.
A kind of pre-magnetizing transformer with voltage regulator, comprise first side winding 1, voltage regulator 4, secondary side winding 2 and auxiliary winding 3, first side winding is arranged on the high-pressure side of transformer, secondary side winding and auxiliary winding are arranged on the low-pressure side of transformer, should auxiliary winding voltage be lower than secondary side voltage, electric current is the exciting current of iron core, phase place and primary side (high-pressure side) winding same-phase; Auxiliary winding connects with the secondary side low voltage electric network by voltage regulator.
Size according to first side winding and secondary side winding technical parameter calculative determination iron core exciting current; According to the electric current of first side winding calculating and the voltage of low voltage electric network, calculate capacity and the number of turn parameter of auxiliary winding (pre-magnetizing winding); At the auxiliary winding of the bottom of secondary side winding coiling; Capacity and number of turn parameter according to low voltage electric network voltage and auxiliary winding (pre-magnetizing winding) are determined adaptive voltage regulator; To assist Winding tap to connect with voltage regulator; Voltage regulator is accessed low voltage electric network; First with the breaker closing between voltage regulator and the low-voltage electrical network; The output voltage of voltage regulator gradually raises; The voltage regulator output voltage is finished the iron core pre-magnetizing after being raised to rated voltage, then to the first side winding idle-loaded switching-on.
The utility model course of work:
1. the secondary side (low-pressure side) at transformer increases an auxiliary winding (pre-magnetizing winding), and this auxiliary winding voltage is lower than secondary side voltage, and electric current is the exciting current of iron core, phase place and primary side (high-pressure side) winding same-phase;
2. auxiliary winding connects with the secondary side low voltage electric network by voltage regulator;
3. first to the breaker closing between voltage regulator and the electrical network, voltage regulator output voltage gradually raises;
4. the voltage regulator output voltage raises gradually, and the auxiliary every phase voltage of winding also raises gradually, the iron core excitation, and after auxiliary winding voltage was raised to rated value, magnetic flux reached a stable state;
Primary side is carried out idle-loaded switching-on, and existed a stable state magnetic flux owing in the iron core this moment, and phase place is identical, then magnetizing inrush current can not occur in the first side winding idle-loaded switching-on process.
Claims (2)
1. pre-magnetizing transformer with voltage regulator, it is characterized in that: comprise first side winding (1), voltage regulator (4), secondary side winding (2) and auxiliary winding (3), first side winding is arranged on the high-pressure side of transformer, secondary side winding and auxiliary winding are arranged on the low-pressure side of transformer, should auxiliary winding voltage be lower than secondary side voltage, electric current is the exciting current of iron core, phase place and first side winding same-phase; Auxiliary winding connects with the secondary side low voltage electric network by voltage regulator.
2. described a kind of pre-magnetizing transformer with voltage regulator according to claim 1 is characterized in that: will assist Winding tap to connect with voltage regulator; Voltage regulator is accessed low voltage electric network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220579334 CN202871496U (en) | 2012-11-06 | 2012-11-06 | Pre-magnetizing transformer with voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220579334 CN202871496U (en) | 2012-11-06 | 2012-11-06 | Pre-magnetizing transformer with voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871496U true CN202871496U (en) | 2013-04-10 |
Family
ID=48038192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220579334 Expired - Lifetime CN202871496U (en) | 2012-11-06 | 2012-11-06 | Pre-magnetizing transformer with voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945735A (en) * | 2012-11-06 | 2013-02-27 | 保定天威集团有限公司 | Pre-magnetizing transformer with voltage regulator and manufacture method thereof |
-
2012
- 2012-11-06 CN CN 201220579334 patent/CN202871496U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945735A (en) * | 2012-11-06 | 2013-02-27 | 保定天威集团有限公司 | Pre-magnetizing transformer with voltage regulator and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 071056 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131114 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: BAODING TIANWEI BAOBIAN ELECTRIC Co.,Ltd. Patentee after: BAODING TIANWEI SHUNDA TRANSFORMER Co.,Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: BAODING TIANWEI GROUP Co.,Ltd. Patentee before: BAODING TIANWEI SHUNDA TRANSFORMER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |