CN201975759U - Protection device of transformer - Google Patents
Protection device of transformer Download PDFInfo
- Publication number
- CN201975759U CN201975759U CN2011201138044U CN201120113804U CN201975759U CN 201975759 U CN201975759 U CN 201975759U CN 2011201138044 U CN2011201138044 U CN 2011201138044U CN 201120113804 U CN201120113804 U CN 201120113804U CN 201975759 U CN201975759 U CN 201975759U
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- Prior art keywords
- transformer
- rectifier
- utility
- model
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a protection device of transformer comprising a transformer and a rectifier; a sensor is connected between the transformer and the rectifier; the rectifier and the sensor are connected with a controller; an output terminal of the rectifier is connected with a positive discharging circuit and a negative discharging circuit; and the transformer and the rectifier are integration. In the protection device of the transformer of the utility model, the sensor and the transformer are connected directly and the rectifier and the transformer become integration, so the utility model is characterized by simple structure, small size and low cost; combination of the sensor and the controller replaces a fast-acting fuse, so the utility model is high in reliability and small in energy loss and convenient to install and maintain.
Description
Technical field
The utility model relates to a kind of protective device, is specifically related to a kind of protection equipment for transformer.
Background technology
In rectifier, what be used for protecting transformer mainly is fast acting fuse, and fast acting fuse also has the certain protection effect to controllable silicon.When controllable silicon damaged, electric current increased suddenly, and fast acting fuse fusing becomes open circuit.Fast acting fuse is mainly made by copper and silvery and is formed the raw material costliness.And in rectifying device, there is the direct current pressure drop in fast acting fuse, produces loss.In a lot of industries such as electrometallurgy and electrification, load contains capacitive or perception, after rectifier quits work, still contains electric charge, and when the controllable silicon damage, the electric charge of storage will enter transformer coil by the controllable silicon that damages, and will damage transformer like this.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of above-mentioned technology, provide a kind of simple in structure, Master Cost is low, energy loss is little and the protection equipment for transformer of good reliability.
Protection equipment for transformer of the present utility model comprises transformer and rectifier, it is characterized in that: be connected with transducer between described transformer and the rectifier; Rectifier and transducer also are connected with controller, and rectifier output end is connected with positive discharge circuit and negative discharge circuit.
Described transformer and rectifier are an integral body.
Protection equipment for transformer of the present utility model, rectifier directly is connected with transformer, and rectifier and transformer unite two into one, and be simple in structure, and volume is little, and cost is low; The combination of transducer and controller has replaced fast acting fuse, good reliability, and energy loss is little; Convenient for installation and maintenance.
Description of drawings
Accompanying drawing is a structure principle chart of the present utility model.
Among the figure 1, transformer, 2, transducer, 3, rectifier, 5, positive discharge circuit, 6, negative discharge circuit, 7, controller.
Embodiment
Protection equipment for transformer of the present utility model comprises transformer 1 and rectifier 3; between transformer 1 and rectifier 3, be connected with transducer 3; rectifier 3 and transducer 2 also are connected with controller 7, and rectifier 3 (controllable silicon) output is connected with positive discharge circuit 5 and negative discharge circuit 6.
A utmost point of rectifier 3 (controllable silicon) is directly linked to each other with transformer 1 by transducer, and an other utmost point links to each other with bus.So just transformer 1 and rectifier 3 are united two into one.Positive discharge circuit 5 and negative discharge circuit 6 are connected between the positive and negative busbar.
Protection equipment for transformer of the present utility model is work like this: when rectifier 3 (controllable silicon) damages; electric current sharply increases; transducer 2 sends fault-signal to controller 7; controller 7 sends the separating brake instruction to switch cubicle (as: high-voltage board) immediately; block the pulse of rectifier 3 simultaneously; disconnect the switch that connects transformer 1, transformer 1 outage.Simultaneously, controller 7 sends instruction to positive discharge circuit 5 and negative discharge circuit 6, makes positive discharge circuit 5 and 6 work of negative discharge circuit, eliminates the influence of load store charge to transformer, thereby reaches the purpose of protection transformer 1.
Claims (2)
1. a protection equipment for transformer comprises transformer (1) and rectifier (3), it is characterized in that: be connected with transducer (2) between described transformer (1) and the rectifier (3); Rectifier (3) and transducer (2) also are connected with controller (7), and rectifier (3) output is connected with positive discharge circuit (5) and negative discharge circuit (6).
2. protection equipment for transformer according to claim 1 is characterized in that: described transformer (1) and rectifier (3) are an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201138044U CN201975759U (en) | 2011-04-18 | 2011-04-18 | Protection device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201138044U CN201975759U (en) | 2011-04-18 | 2011-04-18 | Protection device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975759U true CN201975759U (en) | 2011-09-14 |
Family
ID=44580856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201138044U Expired - Fee Related CN201975759U (en) | 2011-04-18 | 2011-04-18 | Protection device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975759U (en) |
-
2011
- 2011-04-18 CN CN2011201138044U patent/CN201975759U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20120418 |