CN202050232U - Overheating protector of transformer - Google Patents
Overheating protector of transformer Download PDFInfo
- Publication number
- CN202050232U CN202050232U CN201120092712.2U CN201120092712U CN202050232U CN 202050232 U CN202050232 U CN 202050232U CN 201120092712 U CN201120092712 U CN 201120092712U CN 202050232 U CN202050232 U CN 202050232U
- Authority
- CN
- China
- Prior art keywords
- transformer
- overheating
- protective relay
- links
- alarm
- 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
Links
- 238000013021 overheating Methods 0.000 title abstract 6
- 230000001012 protector Effects 0.000 title abstract 5
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Abstract
The utility model relates to the technical field of transformer protection and discloses an overheating protector of a transformer. The overheating protector comprises a thermal element which can induce the transformer, wherein the thermal element is arranged in a winding of the transformer, the thermal element is connected with a heat protective relay starting coil on a secondary control loop of the transformer via leads, a motion contact of the heat protective relay is connected with a primary power supply loop and an alarm. The overheating protector provided by the utility model can break the primary power supply loop and switch on the alarm, can prevent the transformer from being burnt due to overheating, thereby protecting the transformer, distribution equipment and electric equipment. Besides, the overheating protector is simple in structure, easy in installation and low in cost.
Description
Technical field
The utility model relates to the tranformer protection technical field, relates in particular to a kind of overtemperature protection system of transformer.
Background technology
At present, the transformer that industrial and mining enterprises are most burns for preventing transformer; diversified safeguard measure all is installed, and as overvoltage protection, overcurrent protection, earth leakage protective and overtemperature protection or the like, and existing protection equipment for transformer circuit element is many; complex structure, the cost height.Because in actual applications, modal problem is exactly.
Summary of the invention
For overcoming existing technical deficiency, the purpose of this utility model provides a kind of overtemperature protection system of transformer.Can solve transformer because of overheated problem of burning, have simple in structure, easy installation, cost is low.
For achieving the above object, the utility model adopts following technical scheme:
A kind of overtemperature protection system of transformer, have can sensor transformer temperature-sensitive element, be arranged in the winding of transformer; Described temperature-sensitive element links to each other with hot protective relay actuating coil on the transformer secondary control loop by lead, and the action closing contact of described hot protective relay links to each other with main power circuit, and normally opened contact links to each other with alarm.
Owing to adopt as above technical scheme, the utlity model has following superiority:
A kind of overtemperature protection system of transformer can disconnect main power circuit or connect alarm, prevents that transformer from burning because of overheated, plays the protection to transformer, and the protection of controller switching equipment and power consumption equipment.Have simple in structure, easy installation, cost is low.
Description of drawings
Figure l is the overtemperature protection system application circuit of transformer.
Embodiment
As shown in Figure 1, a kind of overtemperature protection system of transformer, have can sensor transformer temperature-sensitive element 3 be arranged in the winding of transformer 1; Described temperature-sensitive element 3 links to each other with hot protective relay 2 actuating coils on the transformer secondary control loop by lead, and the action closing contact 4 of described hot protective relay 2 links to each other with main power circuit, and normally opened contact 5 links to each other with alarm.
During work; described temperature-sensitive element 3 can be installed in transformer 1 coil for thermistor; when transformer 1 coil temperature reaches default protection value; the thermistor conducting; make the hot protective relay 2 actuating coils action on the continuous transformer secondary control loop; main power circuit is disconnected, and connect alarm, play protection controller switching equipment and power consumption equipment.
Claims (1)
1. the overtemperature protection system of a transformer is characterized in that: have can sensor transformer temperature-sensitive unit (3) be arranged in the winding of transformer (1); Described temperature-sensitive element (3) links to each other with hot protective relay (2) actuating coil on the transformer secondary control loop by lead; the action closing contact (4) of described hot protective relay (2) links to each other with main power circuit, and normally opened contact (5) links to each other with alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092712.2U CN202050232U (en) | 2011-04-01 | 2011-04-01 | Overheating protector of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092712.2U CN202050232U (en) | 2011-04-01 | 2011-04-01 | Overheating protector of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202050232U true CN202050232U (en) | 2011-11-23 |
Family
ID=44990525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120092712.2U Expired - Fee Related CN202050232U (en) | 2011-04-01 | 2011-04-01 | Overheating protector of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202050232U (en) |
-
2011
- 2011-04-01 CN CN201120092712.2U patent/CN202050232U/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: 20111123 Termination date: 20130401 |