CN201774235U - Portable low-power generating unit overload protector - Google Patents
Portable low-power generating unit overload protector Download PDFInfo
- Publication number
- CN201774235U CN201774235U CN2010205063521U CN201020506352U CN201774235U CN 201774235 U CN201774235 U CN 201774235U CN 2010205063521 U CN2010205063521 U CN 2010205063521U CN 201020506352 U CN201020506352 U CN 201020506352U CN 201774235 U CN201774235 U CN 201774235U
- Authority
- CN
- China
- Prior art keywords
- switch
- overload
- digital display
- relay
- generator
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to the technical field of overload protection devices, in particular to a portable low-power generating unit overload protector, which comprises a digital display meter, a leakage switch K2, a relay switch K1 and a resistor R. One end of the leakage switch K2 is connected with input wires A, B, C and N of a generator; the other end of the leakage switch K2 is connected with output wires U, V, W and N1; an input end N of the generator is connected with the resistor R and the relay switch K1; the relay switch K1 is connected with the output wire V and a digit 2 on the digital display meter; an output wire W is connected with a digit 1 on the digital display meter; and a digit 3 and a digit 5 on the digital display meter are connected with the relay K3. In actual use process, the digital display meter is capable of more accurately measuring and displaying voltage and current of a unit. By the aid of the advantage of accurately displaying measurement value of the digital meter, the low-power generating unit is not easy to overload and is greatly protected from loss caused by overload.
Description
Technical field
The utility model relates to a kind of overload protection arrangement, relates in particular to a kind of portable small-power section generating set overload protection.
Background technology
The overload of generator is meant that the power of generator output or electric current have surpassed its rated value (but the value that is occurred when being unlikely to reach short circuit).The protection philosophy of overload is: should protect generator not to be damaged, avoid short-time overload again and uninterrupted power supply as far as possible.In the practice process,, can cause the generator scaling loss, thereby influence the performance of enterprises if the overload phenomenon takes place.
The utility model content
The technical problems to be solved in the utility model is: generator if the overload phenomenon takes place, can cause the generator scaling loss in the utilization process of reality, influence the deficiency of the performance of enterprises, and a kind of portable small-power section generating set overload protection is provided.
In order to overcome the defective that exists in the background technology, the technical scheme that its technical problem that solves the utility model adopts is: the utility model comprises a digital wash, leakage switch K2, relay switch K1 and resistance R, the end of described leakage switch K2 connects the incoming line A of generator, B, C, N, the other end connects output line U, V, W, N1, generator N input connects resistance R and relay switch K1, relay switch K1 connects numeral 2 on output line V and the digital wash, output line W connects numeral 1 on the digital wash, and numeral 3 is connected relay K 3 on the digital wash with 5.
According to another embodiment of the present utility model, further comprise also connecting 12V voltage on the described digital wash.
The beneficial effects of the utility model are: in actual use; we know the measurement that digital wash can be more accurate and show the voltage and current of unit; utilize digital watch can accurately show this advantage of measured value; digital wash is connected relay K 1; set the demonstration electric current of regulation then; when load surpasses the electric current of setting; relay K 1 can be moved; make output line U; N forms short circuit; leakage switch can accurately be disconnected; small-power section generating set is difficult for transshipping the loss of having protected small-power section generating set to cause because of overload greatly like this.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Fig. 1 is a structural representation of the present utility model, comprise a digital wash, leakage switch K2, relay switch K1 and resistance R, the end of described leakage switch K2 connects incoming line A, B, C, the N of generator, the other end connects output line U, V, W, N1, generator N input connects resistance R and relay switch K1, relay switch K1 connects numeral 2 on output line V and the digital wash, output line W connects numeral 1 on the digital wash, numeral 3 is connected relay K 3 with 5 on the digital wash, also connects 12V voltage on the described digital wash.In actual use; we know the measurement that digital wash can be more accurate and show the voltage and current of unit; utilize digital watch can accurately show this advantage of measured value; digital wash is connected relay K 1; set the demonstration electric current of regulation then; when load surpasses the electric current of setting; relay K 1 can be moved; make output line U, N form short circuit; leakage switch can accurately be disconnected; small-power section generating set is difficult for transshipping the loss of having protected small-power section generating set to cause because of overload greatly like this.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. portable small-power section generating set overload protection; comprise a digital wash, leakage switch K2, relay switch K1 and resistance R; it is characterized in that: the end of described leakage switch K2 connects incoming line A, B, C, the N of generator; the other end connects output line U, V, W, N1; generator N input connects resistance R and relay switch K1; relay switch K1 connects numeral 2 on output line V and the digital wash; output line W connects numeral 1 on the digital wash, and numeral 3 is connected relay K 3 on the digital wash with 5.
2. portable small-power section generating set overload protection as claimed in claim 1 is characterized in that: also connect 12V voltage on the described digital wash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205063521U CN201774235U (en) | 2010-08-27 | 2010-08-27 | Portable low-power generating unit overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205063521U CN201774235U (en) | 2010-08-27 | 2010-08-27 | Portable low-power generating unit overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774235U true CN201774235U (en) | 2011-03-23 |
Family
ID=43754072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205063521U Expired - Fee Related CN201774235U (en) | 2010-08-27 | 2010-08-27 | Portable low-power generating unit overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774235U (en) |
-
2010
- 2010-08-27 CN CN2010205063521U patent/CN201774235U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |