CN2814755Y - Three-phase AC electrical phase sequence identification and defect phase protector - Google Patents
Three-phase AC electrical phase sequence identification and defect phase protector Download PDFInfo
- Publication number
- CN2814755Y CN2814755Y CN 200420115744 CN200420115744U CN2814755Y CN 2814755 Y CN2814755 Y CN 2814755Y CN 200420115744 CN200420115744 CN 200420115744 CN 200420115744 U CN200420115744 U CN 200420115744U CN 2814755 Y CN2814755 Y CN 2814755Y
- Authority
- CN
- China
- Prior art keywords
- phase
- protector
- resistance
- type flip
- flip flop
- 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
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a kind of phase order of 3-phase AC identification and open phase protector.This protector is core parts with a d type flip flop, and after 380 volts three-phase alternating current inserted this protector, wherein two-phase was respectively only through directly receiving on the trigger end D and clock end CP of d type flip flop behind a resistance and an inductance; Another mutually constitutes step-down rectifier loop with diode with other through resistance, electric capacity mutually, and the voltage after the rectification provides the power supply of different voltage requests again for this protector after the two-stage voltage stabilizing.Protector provided by the utility model has saved the electromagnetic type transformer, has simplified circuit.Volume is little, in light weight, capacitive load characteristic, significantly energy-conservation, adopts international U-rail mounting means, and is easy to use.This protector can make and irreversiblely be protected to running or equipment that can not phase-deficient operation; Can stop the heating burnout accident that three-phase alternating-current motor causes because of phase-deficient operation.This protector also has one group for the terminal of interlocking or reporting to the police and selecting for use.
Description
Technical field the utility model relates to a kind of phase order of 3-phase AC identification and open phase protector.
When the phase sequence that this protector can guarantee three-phase alternating current and three-phase identical with the phase sequence of agreement all can normal power supply, power consumption equipment could operate as normal; As long as if the phase sequence of the phase sequence of three-phase alternating current and agreement is different or when having one mutually can not normal power supply promptly to lack the phase failure, this protector is stopped power supply circuit, power consumption equipment can not move, irreversiblely be protected to the equipment that turns round or can not phase-deficient operation thereby make; Can stop the heating burnout accident that three-phase alternating-current motor causes because of phase-deficient operation.
This protector protection irreversible to running or can not the power consumption equipment of phase-deficient operation in, a contact point signal can also be provided, for interlocking or report to the police and use, interlocked in the electricity consumption loop or make that alarm sends, visual alarm; The prompting attendant handles phase sequence or searches and lacks phase failure accident.
This protector has operating state indication LED, and all during the energy normal power supply, LED is luminous for identical and three-phase when the phase sequence of the phase sequence of three-phase alternating current in the circuit and agreement; If LED extinguishes, then illustrate in the different or three-phase alternating current of the phase sequence that phase sequence and agreement have taken place in the circuit to have at least one can not promptly lack phase failure accident by normal power supply mutually, point out maintenance personal's processing accident in time.Background technology phase order of 3-phase AC identification of the prior art and scarce phase failure protector are that the product of producing with Delixi Group Co., Ltd and Wenzhou Tai Hua Electrical Appliances Co., Ltd of positive safe group is representative, name of product is the XJ series phase failure and phase sequence relay, the product circuit of above-mentioned two companies is identical. the working power of this protector, be by the electromagnetic type transformer by the two-phase in 380 volts of alternating currents of the three-phase that is linked into protector inside, 380 volts of voltages are reduced to 14 volts of voltages, again through supplying with after the bridge rectifier voltage stabilizing; The 380 volts of alternating currents of three-phase that are linked into protector inside are through a plurality of resistance, capacitance decompression; through receiving after the bridge rectifier voltage stabilizing on the core integrated circuit LM358, the circuit design more complicated makes the XJ series phase failure and phase sequence relay volume do greatlyyer again; heavy, install inconvenient.
" phase order of 3-phase AC identification and the open phase protector " that the utility model relates to also is different from the circuit in one piece of " three-phase alternating current phase sequence testing circuit " article that 2003 " electronics newspaper " deliver on circuit design.The integrated circuit that circuit in this piece article adopts is 2 d type flip flops among the double D trigger CD4013, three-phase alternating current is transformed to clock end CP and the reset terminal R that low voltage pulse signal is input to two d type flip flops after step-down, rectification, do not provide the physical circuit of three-phase alternating current step-down rectifier in the literary composition, also do not provide the scheme of the supply of working power in the circuit, so this literary composition only is the specifically practicality of principle article of one piece of circuit collection of choice specimens.
The summary of the invention the purpose of this utility model provides a kind of " phase order of 3-phase AC identification and open phase protector ".
All there is an electromagnetic type step-down transformer phase order of 3-phase AC identification of the prior art and open phase protector inside, and 380 volts of voltages are reduced to 14 volts of voltages again after the bridge rectifier voltage stabilizing, for protector provides working power; The 380 volts of alternating currents of three-phase that insert protector inside after the bridge rectifier voltage stabilizing, are received on the core parts integrated circuit LM358 of protector the circuit design more complicated again through a plurality of resistance, capacitance decompression.The existence of transformer make the volume of protector be compelled to do more greatly, heavy; to install inconvenient. transformer self is consumed power again; the power consumption of protector is reached about 7 watts, because the existence of transformer makes the load characteristic of protector is inductive load, has increased reactive loss again.
The utility model provides at the problems referred to above that a kind of circuit is simple, volume is little, in light weight, easy for installation, power consumption only is about 1 watt, energy-saving " the phase order of 3-phase AC identification and the open phase protector " of capacitive load characteristic.
Realize that the concrete technical scheme of above-mentioned purpose is: the utility model protector in design, having cancelled protector of the prior art inside provides electromagnetic type transformer that working power adopts and relevant bridge rectifier, has saved protector of the prior art inside three-phase alternating current and be connected to the necessary a plurality of resistance of integrated circuit, electric capacity and bridge rectifier voltage stabilizing circuit for protector.The utility model protector does not use integrated circuit LM358, and be core parts with a d type flip flop, after 380 volts of alternating currents of three-phase inserted the utility model protector, wherein two-phase only through a resistance and an inductance, was directly received on the trigger end D and clock end CP of d type flip flop respectively; Another mutually constitutes step-down rectifier loop with diode with other through resistance, electric capacity mutually, and the voltage after the rectification provides the power supply of different voltage requests again for the utility model protector after the two-stage voltage stabilizing.
Owing to saved the electromagnetic type transformer and simplified circuit, not only saved silicon steel sheet, materials such as electromagnetic wire, and make the functional reliability of the utility model protector further improve, volume has reduced 1/2nd, weight saving 2/3rds, inductive load becomes capacitive load, energy-saving effect is remarkable; Can make international U-rail mounting means, very easy to use.
The normal opened contact of the relay in the utility model protector internal circuit, be serially connected in the actuating coil loop of three-phase alternating current current supply circuit A.C. contactor, guarantee in the phase sequence of three-phase alternating current identical with the phase sequence of agreement, and when every phase can both normal power supply, the current supply circuit of power consumption equipment just can be powered, and makes the power consumption equipment operate as normal; Otherwise this protector is stopped power supply the current supply circuit of power consumption equipment, makes irreversiblely to be protected to running or equipment that can not phase-deficient operation, can stop the heating burnout accident that three-phase alternating-current motor causes because of the power supply phase-deficient operation.
The normally closed contact of the relay in the utility model protector internal circuit is selected for use for interlocking or warning as interlocking or warning contact.
Description of drawings Fig. 1 is the circuit diagram of the utility model protector;
Fig. 2 is the outer end subgraph of the utility model protector.
Embodiment is further described concrete enforcement of the present utility model below in conjunction with Fig. 1 and Fig. 2:
Resistance R in Fig. 1 circuit diagram
1A termination external connection terminal A, resistance R
1The other end, resistance R
2An end and inductance L
1An end be connected to some inductance L altogether
1The trigger end D of another termination d type flip flop, resistance R
2The other end, resistance R
3An end and electrochemical capacitor C
2Negative pole meet external connection terminal B, resistance R after connecting
3Another terminating diode D
1Positive pole, diode D
1Negative pole, capacitor C
1An end, resistance R
6An end and diode D
2Positive pole be connected to some capacitor C altogether
1The other end, resistance R
6The other end and resistance R
4An end be connected to some resistance R altogether
4The other end and resistance R
5An end be connected to external connection terminal C, resistance R after being connected
5Another termination inductance L
2An end, inductance L
2The other end and resistance R
7An end be connected to the clock end CP of d type flip flop, resistance R after connecting again
7The other end, the set end S of d type flip flop, the clear terminal R and the d type flip flop power supply negative terminal V of d type flip flop
SSBe connected to external connection terminal B again, diode D after being connected to a bit altogether
2Negative pole, electrochemical capacitor C
2Positive pole, the positive pole of LED, voltage stabilizing didoe DW
1Negative pole and resistance R
8An end be connected to some resistance R altogether
8The other end, resistance R
9An end, voltage stabilizing didoe DW
2Negative pole and capacitor C
4An end be connected to the power supply anode V of d type flip flop after being connected to a bit altogether again
DD, voltage stabilizing didoe DW
1Positive pole, R
9The other end, voltage stabilizing didoe DW
2Positive pole, capacitor C
4The other end and after the emitter of triode T is connected to a bit altogether, be connected to external connection terminal B again, the negative pole of LED, diode D
3Negative pole, an end and the electrochemical capacitor C of relay J K actuating coil
3Positive pole be connected to some diode D altogether
3Positive pole, the other end of relay J K actuating coil, electrochemical capacitor C
3Negative pole and the collector electrode of triode T be connected to some resistance R altogether
10A base stage that is terminated at triode T, resistance R
10The other end be connected to the state output end Q of d type flip flop.
Normally closed and normal opened contact 11,12,14 corresponding respectively being connected on external connection terminal 11,12 and 14 of relay J K in Fig. 1 circuit diagram.
A, B in Fig. 2 outer end subgraph, C, 11,12, the 14th, six external connection terminals of this protector.Three phase lines of 380 volts of alternating currents of three-phase are received respectively on A, B, three terminals of C; when three phase lines insert first; should make the LED of this protector luminous, we just can assert that the phase sequence of the three-phase alternating current of this access is the phase sequence of appointing like this.Three phase line parallels are received in the loop of A.C. contactor power supply with this phase sequence again; 11,14 terminals are serially connected in the actuating coil loop of the A.C. contactor of controlling three-phase alternating current current supply circuit break-make, adjust the wiring of power consumption equipment again, equipment is normally moved, the work of at this moment adjusting for the first time promptly comes to an end.So just make this current supply circuit, it is sub with novel " phase order of 3-phase AC identification and the open phase protector " that provides to be controlled by this reality.
11,12 external connection terminals in Fig. 2 outer end subgraph, for the interlocking or the use of reporting to the police, the prompting attendant in time handles phase sequence or searches and lacks phase failure accident.
Claims (1)
- A kind of phase order of 3-phase AC identification and open phase protector, this protector with a d type flip flop as core parts, it is characterized in that: the electromagnetic type step-down transformer that provides power supply to be provided with for protector has been provided: after 380 volts three-phase alternating current inserted this protector, wherein two-phase was only directly received on the trigger end D and clock end CP of d type flip flop through resistance and inductance respectively; Another through resistance, electric capacity and diode and Qi Ta Xiang Ju become the step-down rectifier loop.Voltage after the rectification after the two-stage voltage stabilizing, provides the power supply of different voltage requests again for the utility model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115744 CN2814755Y (en) | 2004-11-19 | 2004-11-19 | Three-phase AC electrical phase sequence identification and defect phase protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115744 CN2814755Y (en) | 2004-11-19 | 2004-11-19 | Three-phase AC electrical phase sequence identification and defect phase protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814755Y true CN2814755Y (en) | 2006-09-06 |
Family
ID=36949841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115744 Expired - Fee Related CN2814755Y (en) | 2004-11-19 | 2004-11-19 | Three-phase AC electrical phase sequence identification and defect phase protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814755Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720559A (en) * | 2016-04-26 | 2016-06-29 | 华北电力科学研究院有限责任公司 | Protective device for knife-switch and knife-switch system |
-
2004
- 2004-11-19 CN CN 200420115744 patent/CN2814755Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720559A (en) * | 2016-04-26 | 2016-06-29 | 华北电力科学研究院有限责任公司 | Protective device for knife-switch and knife-switch system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202197226U (en) | Power station direct current power supply device based on super capacitor | |
| CN100468952C (en) | Intelligent powersaving device for AC motor | |
| CN201160036Y (en) | Low-power consumption intelligent zero crossing throwing and cutting controller | |
| CN203218762U (en) | Capacity-variable energy-saving preassembled transformer substation | |
| CN2785261Y (en) | Switch circuit using several switches to control one electric appliance | |
| CN201733105U (en) | Low-voltage intelligent phase-selection switch | |
| CN2814755Y (en) | Three-phase AC electrical phase sequence identification and defect phase protector | |
| CN2459807Y (en) | Intelligent high-frequency switch dc power source | |
| CN206135759U (en) | Oil recovery well group intelligent control economizer | |
| CN106992491B (en) | Large power-consuming equipment power off in standby state of electric energy saver and its power-off energy saving method | |
| CN200990575Y (en) | Elevator frequency changer external hanging energy feedback device | |
| CN202737470U (en) | Energy saving intelligent low voltage reactive compensation control system based on modularization design | |
| CN200990583Y (en) | AC electric machine intelligent electricity economizer | |
| CN101965081A (en) | Lighting energy saving device with no flash or overvoltage on basis of logic control | |
| CN2649549Y (en) | Elevator control circuit power-supply device | |
| CN205319693U (en) | Radar intelligent power distribution system | |
| CN215817534U (en) | Power distribution device | |
| CN2217853Y (en) | Intelligent monitoring stablizing protector for ac. electric power supply | |
| CN2713710Y (en) | Combination switch for switching capacitors | |
| CN2632920Y (en) | Supar-capacitance intelligent control module zero maintenance DC screen | |
| CN201718079U (en) | State transition no-flash no-overvoltage illumination electricity-saving device based on logic control | |
| CN202257168U (en) | Thyristor-based electricity saver | |
| CN2634636Y (en) | DC operated three phase AC contactor control module | |
| CN2634635Y (en) | DC operated three phase AC contactor intelligent control module | |
| CN211744806U (en) | Control circuit of LED driving power supply |
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: 20060906 Termination date: 20131119 |