CN102364623B - Dry type transformer with protection circuit - Google Patents
Dry type transformer with protection circuit Download PDFInfo
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- CN102364623B CN102364623B CN 201110363643 CN201110363643A CN102364623B CN 102364623 B CN102364623 B CN 102364623B CN 201110363643 CN201110363643 CN 201110363643 CN 201110363643 A CN201110363643 A CN 201110363643A CN 102364623 B CN102364623 B CN 102364623B
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- fan
- temperature controller
- protective circuit
- type transformer
- contactor
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Abstract
The invention discloses a dry type transformer with a protection circuit. The dry type transformer mainly comprises a box body (1), wherein a fan (2) is arranged in the box body (1), and a temperature controller (3) electrically connected with the fan (2) is also arranged on the box body (1). The dry type transformer is characterized in that: the protection circuit (4) which is connected with both the fan (2) and the temperature controller (3) is also arranged between the fan (2) and the temperature controller (3). The dry type transformer is simple in structure, low in cost and convenient for use and movement, and can protect the temperature controller (3) from being burnt out easily due to circuit faults of the fan, so the dry type transformer is suitable for popularization and application.
Description
Technical field
The present invention relates to a kind of dry-type transformer, specifically refer to a kind of dry-type transformer with protective circuit.
Background technology
Dry-type transformer needs to consume a large amount of electric energy in the process of work, these electric energy will be converted into heat energy, thereby the temperature of dry-type transformer is raise.In order to protect dry-type transformer to extend the useful life of this transformer, usually need to use fan that transformer is dispelled the heat.Simultaneously, need to use thermostat with the temperature of monitoring transformer.Because thermostat directly is electrically connected to fan, thereby make thermostat be easy to be burned, and thermostat is expensive, therefore brings great economic pressures to the user.
Summary of the invention
The thermostat that the object of the invention is to overcome the dry-type transformer of present use directly is electrically connected to fan; thereby make thermostat be easy to be burned; and thermostat is expensive; therefore bring the defective of great economic pressures to the user; provide a kind of not only simple in structure; and with low cost, easy to use, the dry-type transformer with protective circuit that can also protect thermostat not to be burned.
The present invention is achieved through the following technical solutions: the dry-type transformer with protective circuit; the casing that mainly is provided with fan by inside and has a chamber door forms; also be provided with the temperature controller that is electrically connected to fan on this casing, also be provided with the protective circuit that all is electrically connected to this fan and temperature controller between described fan and temperature controller.
Further, described protective circuit is arranged on the bottom surface of casing or on inwall.
Further, described protective circuit comprises all and contactor KM and the thermal protector normally-closed contact JRS1 in parallel with fan electromotor again after temperature controller is connected; And all with contactor normally opened contact KM1 and the thermal protector JRS in parallel with temperature controller, contactor KM and thermal protector normally-closed contact JRS1 again after fan electromotor M connects.
Further, described fan electromotor M is one.
Perhaps, described fan electromotor M is more than two, and this fan electromotor M is in parallel each other.
In order to satisfy the demand, described contactor KM is A.C. contactor.
And the model of described A.C. contactor is CJX2-0910.
In order to better meet needs, the model of described thermal protector JRS is TGR36-20.
In order better to realize the present invention, the model of described temperature controller is BWDK-3190.
In order to ensure effect, described temperature controller is arranged on the side of casing.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the present invention is not only simple in structure, and with low cost, easy to use.
(2) be provided with protective circuit between fan of the present invention and temperature controller, prevent from burning out temperature controller because of the fault of fan, therefore extended the useful life of temperature controller, saved use cost of the present invention.
(3) protective circuit of the present invention is arranged on the inside of casing, and protective circuit is difficult for because being exposed to outer being damaged.
(4) protective circuit of the present invention comprises contactor KM and thermal protector JRS, thereby makes this protective circuit simple in structure, with low cost, easy access and replacing.
(5) fan of the present invention is made as more than one, makes radiating effect of the present invention better.
(6) temperature controller of the present invention is arranged on the side of casing, thereby is convenient to observe.
Description of drawings
Fig. 1 is internal structure schematic diagram of the present invention.
Fig. 2 is overall structure schematic diagram of the present invention.
Fig. 3 is the circuit diagram of fan electromotor M of the present invention when being one.
Fig. 4 is that fan electromotor M of the present invention is two circuit diagrams when above.
Wherein, the parts name that in figure, Reference numeral is corresponding is called:
1-casing, 2-chamber door, 3-fan, 4-temperature controller, 5-protective circuit, 6-fixed head.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Fig. 1～4, the present invention mainly is comprised of casing 1, the cube structure that this casing 1 is made for sheet metal, and this casing 1 is the semi-closed structure of leading flank opening.Also be provided with fixed head 6 at this leading flank, and this fixed head 6 is connected with upper surface, lower surface and right flank respectively, forms opening between this fixed head 6 and left surface, so that enter this box house.Simultaneously, also be provided with chamber door 5 between this fixed head 6 and left surface, and this chamber door 5 is double door, as shown in Figure 2.
For the ease of the present invention is dispelled the heat, also be provided with fan 2 in described casing 1 inside, this fan 2 is arranged on the bottom surface of casing 1.Simultaneously, also be provided with the temperature controller 3 that is electrically connected to fan 2 on described casing 1,3 of this temperature controllers are arranged on the side of casing 1, and the model of this temperature controller 3 is BWDK-3190.For the ease of using, described temperature is controlled 3 and is arranged on and is embedded on fixed head 6, and the display interface of this temperature controller 3 outwards arranges, as shown in Figure 1.
Burn out temperature controller 3 when breaking down for the circuit that prevents fan 2, also be provided with protective circuit 4 between described fan 2 and temperature controller 3.Described protective circuit 4 all is electrically connected to fan 2 and temperature controller 3, and this protective circuit 4 is located at the inside of casing 1, and is arranged on the bottom surface of casing 1, perhaps is fixed on the sidewall of casing 1.
As shown in Fig. 3,4, described protective circuit 4 is connected on power supply, and this power supply is three phase mains, comprises L1 line, L2 line and L3 line, is for greater safety to use power supply, and this power supply also comprises ground wire PE and zero line N.4 of protective circuits comprise on the L1 line that is connected to power supply with zero line N on contactor KM; this contactor KM is A.C. contactor; and the model of this contactor KM is CJX2-0910; 3 of described temperature controllers are connected on this contactor KM, and described fan electromotor M is in parallel with this contactor KM and temperature controller 3.It is in parallel with contactor KM and temperature controller 3 after the normally opened contact KM1 of described contactor KM connects with fan electromotor.Simultaneously, this protective circuit 4 also comprises thermal protector JRS, and the model of this thermal protector JRS is TGR36-20.Described thermal protector JRS connects with contactor normally opened contact KM1 and fan electromotor M respectively, and in parallel with temperature controller 3 and contactor KM, and this thermal protector JRS is arranged between contactor normally opened contact KM1 and fan electromotor M.This thermal protector normally-closed contact JRS1 connects with temperature controller 3 and contactor KM respectively; and in parallel with contactor normally opened contact KM1, thermal protector JRS and fan electromotor M, and this thermal protector normally-closed contact JRS1 is arranged between contactor KM and temperature controller 3.
Also be connected with ground wire PE on described fan electromotor, and this fan electromotor M is made as one, namely fan 2 is made as one, as shown in Figure 3; Perhaps this fan electromotor M is made as more than two, and namely fan 2 is made as more than two, and this fan electromotor M is in parallel each other, as shown in Figure 4.
During work, contactor KM and thermal protector JRS share the electric current in circuit.When fan electromotor M circuit breaks down and during supercurrent, thermal protector JRS work, and cut off circuit, thus protected fan electromotor M; Simultaneously, thermal protector normally-closed contact JRS1 opens under the effect of thermal protector JRS, thereby makes temperature controller 3 short circuits, has namely protected temperature controller 3 not to be burned.
As mentioned above, just can realize preferably the present invention.
Claims (8)
1. the dry-type transformer that has protective circuit, the casing (1) that mainly is provided with fan (2) by inside forms, also be provided with the temperature controller (3) that is electrically connected to fan (2) on this casing (1), it is characterized in that: also be provided with the protective circuit (4) that all is electrically connected to this fan (2) and temperature controller (3) between described fan (2) and temperature controller (3); Described protective circuit (4) comprises all and contactor KM and the thermal protector normally-closed contact JRS1 in parallel with fan electromotor M again after temperature controller (3) is connected; And all with contactor normally opened contact KM1 and the thermal protector JRS in parallel with temperature controller (3), contactor KM and thermal protector normally-closed contact JRS1 again after fan electromotor M connects.
2. the dry-type transformer with protective circuit according to claim 1 is characterized in that: described protective circuit (4) is arranged on the bottom surface of casing (1) or on inwall.
3. the dry-type transformer with protective circuit according to claim 2, it is characterized in that: described fan electromotor M is one.
4. the dry-type transformer with protective circuit according to claim 3, it is characterized in that: described fan electromotor M is more than two, and this fan electromotor M is in parallel each other.
5. according to claim 3 or 4 described dry-type transformers with protective circuit, it is characterized in that: described contactor KM is A.C. contactor.
6. the dry-type transformer with protective circuit according to claim 5, it is characterized in that: the model of described A.C. contactor is CJX2-0910.
7. the dry-type transformer with protective circuit according to claim 6, it is characterized in that: the model of described thermal protector JRS is TGR36-20.
8. the dry-type transformer with protective circuit according to claim 7, it is characterized in that: described temperature controller (3) is arranged on the side of casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110363643 CN102364623B (en) | 2011-11-17 | 2011-11-17 | Dry type transformer with protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110363643 CN102364623B (en) | 2011-11-17 | 2011-11-17 | Dry type transformer with protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364623A CN102364623A (en) | 2012-02-29 |
| CN102364623B true CN102364623B (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110363643 Active CN102364623B (en) | 2011-11-17 | 2011-11-17 | Dry type transformer with protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102364623B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591828Y (en) * | 2002-12-30 | 2003-12-10 | 戴南平 | Dry type transformer thermal protector |
| CN200950376Y (en) * | 2006-09-16 | 2007-09-19 | 吴湘瓯 | Radiator fin type transformer |
| CN202332492U (en) * | 2011-11-17 | 2012-07-11 | 四川嘉宝莉涂料有限公司 | Dry type transformer provided with protection circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10243507A (en) * | 1997-02-26 | 1998-09-11 | Matsushita Electric Ind Co Ltd | High-voltage receiving and distributing device |
| US7161454B2 (en) * | 2003-08-21 | 2007-01-09 | General Electric Company | Apparatus and method for cooling electrical transformers |
| US7567160B2 (en) * | 2006-02-15 | 2009-07-28 | American Superconductor Corporation | Supplementary transformer cooling in a reactive power compensation system |
-
2011
- 2011-11-17 CN CN 201110363643 patent/CN102364623B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591828Y (en) * | 2002-12-30 | 2003-12-10 | 戴南平 | Dry type transformer thermal protector |
| CN200950376Y (en) * | 2006-09-16 | 2007-09-19 | 吴湘瓯 | Radiator fin type transformer |
| CN202332492U (en) * | 2011-11-17 | 2012-07-11 | 四川嘉宝莉涂料有限公司 | Dry type transformer provided with protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102364623A (en) | 2012-02-29 |
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