CN2482094Y - Power supply phase interruption testing device of automatic change-over switch electric appliance - Google Patents
Power supply phase interruption testing device of automatic change-over switch electric appliance Download PDFInfo
- Publication number
- CN2482094Y CN2482094Y CN 01239515 CN01239515U CN2482094Y CN 2482094 Y CN2482094 Y CN 2482094Y CN 01239515 CN01239515 CN 01239515 CN 01239515 U CN01239515 U CN 01239515U CN 2482094 Y CN2482094 Y CN 2482094Y
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- power supply
- electric appliance
- resistance
- atse
- phase
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Abstract
The utility model relates to a power phase failure detecting technical device of an automatic transfer switch electric appliance (ATSE), and the device consists of an optical coupling element, a resistor, and a subsequent circuit IC. The utility model is characterized in that the resistance values of three current limiting resistors are equal and three capacitors are connected in current limiting resistors to be used as the anti-pulse interference, one optical coupling element and the subsequent circuit IC are connected in the rear surface, the common connection point of one end of three current limiting resistors is a neutral point, and the voltage is zero when a three-phase power supply is balanced, current is also zero, and the transfer switch does not operate. Current is not zero when the power supply is broken one phase, so that the ATSE operates. The device is not only suitable for the power phase failure signal detection of the automatic transfer switch electric appliance (ATSE), but also suitable for electric appliances of a circuit breaker, an electric leakage switch, etc. and the phase failure signal detection in the motor starting and protecting circuit.
Description
The utility model relates to the power supply phase failure detection technique device of a kind of automatic transfer switching electric appliance (ATSE), belongs to the low-voltage electrical apparatus technical field of measurement and test.
Automatic transfer switching electric appliance (ATSE) is mainly used in the dual power supply workplace of low-voltage distribution system, it is to have a power failure that this occasion requires for distribution system, therefore, when one road power supply breaks down as the phase failure, load is switched to rapidly on another phase power supply, guarantee the continuous electricity consumption of consumer, avoid the device damage and the personal injury that produce because of fault.
In the prior art the power supply phase failure is detected two kinds of modes commonly used are arranged: 1, transformation detection method.The method connects the detection of the phase failure of three-phase and four-line or the phase three-wire three power supply former triangle edge with three power transformer.When the power supply generation phase failure, the former limit of transformer decompression, corresponding secondary generation signal makes the switch action.2, three optocoupler detection methods.This method is to utilize three optocouplers that power fail is detected, shown in Fig. 1 circuit.Current-limiting resistance R
1, R
2, R
3, insert in A, B, the C three-phase respectively, the other end of resistance and three optocouplers join, the output termination subsequent conditioning circuit of optocoupler.
Above-mentioned dual mode is done the phase failure and is detected, the greatly not too coincidence detection requirement of cost height, volume, and particularly a kind of mode is because the optocoupler that inserts is in "on" position in the circuit borough chief phase, and is therefore easily aging.The variation of feature makes device for switching produce misoperation easily.
The purpose of this utility model provides a kind of brand-new monochromatic light coupling phase failure detection technique device, and novel structure, the little cost of volume are low.Accurately reliable.
Task of the present utility model is done in such a way that on the basis of the circuit of the second above-mentioned mode has done improvement, makes three optocouplers into monochromatic light coupling device, inserts electric capacity again with anti-impulse disturbances.
Through improving design; the technical program is not only applicable to the input of the power supply phase failure in the automatic transfer switching electric appliance; and be applicable to circuit phase failure input in electrical equipment such as isolating switch, leakage switch and motor starting, the holding circuit to have good technological value and economic benefit.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a kind of phase failure checkout equipment schematic circuit of prior art.
Fig. 2 is a phase failure pick-up unit schematic circuit of the present utility model.
With reference to Fig. 2, a kind of automatic transfer switching electric appliance (ATSE) power supply phase failure detection technique device that is used for is made up of resistance, optocoupler and subsequent conditioning circuit, and the formation that it is characterized in that it is by single optocoupler, three resistive element R
3～R
1, subsequent conditioning circuit IC and increase three capacity cell C
1～C
3, the relation of joining that connects of whole circuit is;
Every phase voltage circuit inserts a resistance R respectively
1, R
2, R
3, its other end is connected on the branch concurrent d, R
1With R
2, R
2With R
3R
3With U
NBetween insert capacity cell C respectively
1, C
2, C
3, at d point and U
NBetween insert optocoupler G, insert subsequent conditioning circuit IC at the output terminal of optocoupler.
Three resistance in the device of the present utility model have been three-phase supply equilibrium activitys, R
1, R
2, R
3, want equivalent, when three resistance equated, under the general situation, d point voltage to neutral was zero, i
m=0
0When the disconnected phase time of power supply just can occur
When disconnected two phase times of voltage
Wherein R is a current-limiting resistance, and its resistance is by the workability the subject of knowledge and the object of knowledge decision of optocoupler.According to test, general i
mRange of choice between 3mA～5m, the scope of resistance R is between 200K Ω～100K Ω.The R resistance is too little, i
mIf just big self-heating height is the too big i of R resistance
mJust too little, be unfavorable for the optocoupler conducting.C
1～C
3Usefulness for anti-impulse disturbances.
The foregoing description is a most preferred embodiment of the present utility model.
Claims (2)
1, a kind of automatic transfer switching electric appliance. power supply phase failure detection technique device (ATSE), to be formed by resistance, optocoupler and subsequent conditioning circuit, the formation that it is characterized in that them is by single optocoupler G, three resistance R
1～R
3With three capacitor C
1～C
3And subsequent conditioning circuit IC forms, and the relation of joining that connects of whole circuit is:
Every phase voltage inserts a resistance R respectively
1, R
2, R
3, the other end of resistance is connected to common public some d, resistance R
1With R
2, R
2With R
3, R
3With U
NBetween insert capacitor C respectively
1, C
2, C
3, at d point and U
NBetween insert the input end of optocoupler G, the output terminal of G links to each other with the input end of subsequent conditioning circuit IC.
2, the power supply phase failure detection technique device of automatic transfer switching electric appliance according to claim 1 (ATSE) is characterized in that three resistances equate to be R
1=R
2=R
3, Standard resistance range is at 100K Ω～200K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239515 CN2482094Y (en) | 2001-05-23 | 2001-05-23 | Power supply phase interruption testing device of automatic change-over switch electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239515 CN2482094Y (en) | 2001-05-23 | 2001-05-23 | Power supply phase interruption testing device of automatic change-over switch electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482094Y true CN2482094Y (en) | 2002-03-13 |
Family
ID=33651935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01239515 Expired - Lifetime CN2482094Y (en) | 2001-05-23 | 2001-05-23 | Power supply phase interruption testing device of automatic change-over switch electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482094Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452613C (en) * | 2006-11-29 | 2009-01-14 | 天津百利特精电气股份有限公司 | PC-automatic switch with regional interlock |
| CN102244515A (en) * | 2011-03-10 | 2011-11-16 | 西北工业大学 | Universal multi-channel switching value converter |
| CN101446608B (en) * | 2007-11-28 | 2011-12-07 | 上海精益电器厂有限公司 | Calibration device for automatic transfer switch controller |
| CN103221829A (en) * | 2010-11-17 | 2013-07-24 | 西门子公司 | Electrical device and method for determining a phase failure in the electrical device |
-
2001
- 2001-05-23 CN CN 01239515 patent/CN2482094Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452613C (en) * | 2006-11-29 | 2009-01-14 | 天津百利特精电气股份有限公司 | PC-automatic switch with regional interlock |
| CN101446608B (en) * | 2007-11-28 | 2011-12-07 | 上海精益电器厂有限公司 | Calibration device for automatic transfer switch controller |
| CN103221829A (en) * | 2010-11-17 | 2013-07-24 | 西门子公司 | Electrical device and method for determining a phase failure in the electrical device |
| CN103221829B (en) * | 2010-11-17 | 2016-01-06 | 西门子公司 | Electric equipment and the method for determining the disconnected phase in electric equipment |
| CN102244515A (en) * | 2011-03-10 | 2011-11-16 | 西北工业大学 | Universal multi-channel switching value converter |
| CN102244515B (en) * | 2011-03-10 | 2013-06-05 | 西北工业大学 | Universal multi-channel switching value converter |
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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: SHANGHAI DIANKE SCIENCE CO., LTD. Free format text: FORMER OWNER: SHANGHAI ELECTRIC APPLIANCES SCIENCE INST. Effective date: 20091030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091030 Address after: No. 505, Wuning Road, Shanghai, China: 200063 Patentee after: Shanghai Electrical Apparatus Research Institute Co., Ltd. Address before: No. 505, Wuning Road, Shanghai, China: 200063 Patentee before: Shanghai Electric Appliance Sci. Inst. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110523 Granted publication date: 20020313 |